TRENDnet RB-TEW-676APBO 12dBi N300 Wireless 5GHz Outdoor PoE Access Point User's Guide

TRENDnet User’s Guide
Table of Contents
TRENDnet User’s Guide
Contents
© Copyright 2012TRENDnet. All Rights Reserved.
Table of Contents
2
TRENDnet User’s Guide
© Copyright 2012TRENDnet. All Rights Reserved.
Table of Contents
Client Bridge + Universal Repeater Configuration ................................................ 82
3
TRENDnet User’s Guide
© Copyright 2012TRENDnet. All Rights Reserved.
Table of Contents
4
TRENDnet User’s Guide
Introduction
The N300 Wireless 12dBi Outdoor 5GHz PoE Access Point, model TEW-
676APBO, provides high speed point-to-point building connectivity. It supports a variety of installation scenarios with Access Point, Router Access Point,
Wireless Distribution System (WDS), Customer Premises Equipment (CPE), and
Repeater modes.
An IP-66/67 weather rating and rugged aluminum housing ensures the highest level of protection against extreme weather. An outdoor mounting kit is included and weatherproof LED indicators expedite product installation and troubleshooting.
No need to install this access point nears a power source—PoE technology transmits both power and data over an Ethernet cable. Support for the latest wireless security protocols ensures the highest level of network protection.
Install this access point with TRENDnet’s Outdoor Lightning Arrestor Kit, model
TEW-ASAL1, to protect your entire network from catastrophic lightning strikes.
Features
•
PoE compliant device
•
1 x 10/100Mbps PoE Auto-MDIX LAN port
•
1 x reset button
•
LED indicators: Power, WLAN, LAN, Internal high powered 12dBi patch antenna (polarization: V30
°
, H30
°
)
•
Compliant with 802.11n/a technology (5 GHz spectrum) with data rates up to 300Mbps
• Rugged IP66/67 rated weather proof aluminum housing
• Supports Router Access Point (AP), Access Point (AP), Wireless Distribution
System (WDS), Customer Premises Equipment (CPE), Client Bridge +
Repeater, and CPE + AP modes
• Multiple SSID or Virtual Access Points with Layer 2 VLAN client isolation
•
Access restriction with Internet Access Control, MAC, and IP filtering
•
Universal Plug and Play (UPnP) for auto discovery and support for device configuration of Internet applications
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
•
Complete wireless security with WPA/WPA2-RADIUS, WPA /WPA2-PSK, and
WEP
•
Multiple pass-through sessions for popular VPN applications (IPSec, L2TP, and PPTP)
•
Quality of Service technology: IEEE 802.11p COS, IEEE 802.11q Tag VLAN priority control and Wi-Fi Multimedia (WMM)
•
Supports IEEE 802.11f IAPP (Inter Access Point Protocol), IEEE 802.11h
(Transmission Power Control) and IEEE 802.11d (Multi-country roaming)
• Easy setup via Web browser using the latest versions of Internet Explorer,
FireFox, and Safari
•
Supports SNMP (v2c and v3), Telnet, SSH, and HTTP/HTTPS management
•
Surface mounting hardware
• Electrical ground cable
•
3-year limited warranty
Package Contents
The standard package contents
•
TEW-676APBO
• Multi-Language Quick Installation Guide
• CD-ROM (User’s Guide)
•
PoE Injector &Power cord (All in one type)
•
Mounting Kit
• Grounding wire
•
Waterproof kit
5
TRENDnet User’s Guide
Hardware Feature
Front Panel
•
Housing -
IP 66/67 housing
© Copyright 2012TRENDnet. All Rights Reserved.
Housing
Bottom Panel
TEW-676APBO
LAN/WLAN/PWR
LEDs
PoE Port
Reset Button
•
LED
o
LAN –
Turns on when there is a LAN connection and blinks when data is running through the LAN port. o
WLAN –
Turns on when wireless is enabled and blinks during wireless transmission occur. o
PWR –
Indicates the unit is powered on.
•
Reset Button (unscrew cap)
o
Reboot –
Press and hold the reset button for 2 seconds to restart the unit.
All LEDs except PWR will turn off before the unit turns back on. eless transmission occur. o
Reset –
Press and hold the reset button for more than 10 seconds to
•
PoE Port (unscrew cap)
– Connect the network cable that is connected to the provided PoE injector to power and configure the unit. restore the unit back to factory default settings.
6
TRENDnet User’s Guide
System Concept
•
The TEW-676APBO is not only designed and used as a traditional outdoor AP, but also with rich features tailored for WISP applications. The two-level management capability and access control ease WISP and owners to maintain and manage wireless network in a more controllable fashion. Main applications are listed as follows with illustration:
•
•
•
•
Wireless CPE for Multi Dwelling Unit/Multi-Tenant Unit(MDU/MTU) complexes including apartments, dormitories, and office complexes.
Outdoor Access Point for school campuses, enterprise campuses, or manufacture plants.
Indoor Access Point for hotels, factories, or warehouses where industrial grade devices are preferred.
Public hotspot operation for café, parks, convention centers, shopping malls, or airports.
Wireless coverage for indoor and outdoor grounds in private resorts, home yards, or gulf course communities.
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
7
TRENDnet User’s Guide
Product Benefit
The
The
N300 Wireless 12dBi Outdoor 5GHz PoE Access Point
is the point of connection to Wireless Outdoor Network for service provider deploying last mile services to business or residential broadband subscribers.. Network administrators can create multiple subscriber service tier using per-subscriber rate limiting features, and manage centrally. TEW-676APBO outdoor bridge utilizes a 200mW output Tx Power to connect to the WiFi mesh or WDS infrastructure and provides the subscriber with an Ethernet connection for a local access.
N300 Wireless 12dBi Outdoor 5GHz PoE Access Point
can be used for nine different purposes in six different modes, the Router AP mode , AP mode, the WDS mode, the CPE mode, Client Bridge + Universal Repeater mode and CPE + AP mode,
Installation Considerations
There are a number of factors that can impact the range of wireless devices.
1.
Adjust your wireless devices so that the signal is traveling in a straight path, rather than at an angle. The more material the signal has to pass through the more signal you will lose.
2.
Keep the number of obstructions to a minimum. Each obstruction can reduce the range of a wireless device. Position the wireless devices in a manner that will minimize the amount of obstructions between them.
3.
Building materials can have a large impact on your wireless signal. In an indoor environment, try to position the wireless devices so that the signal passes through less dense material such as dry wall. Dense materials like metal, solid wood, glass or even furniture may block or degrade the signal.
4.
Antenna orientation can also have a large impact on your wireless signal. Use the wireless adapter’s site survey tool to determine the best antenna orientation for your wireless devices.
5.
Interference from devices that produce RF (radio frequency) noise can also impact your signal. Position your wireless devices away from anything that generates RF noise, such as microwaves, radios and baby monitors.
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
If you are still experiencing low or no signal consider repositioning the wireless devices or installing additional access points. The use of higher gain antennas may also provide the necessary coverage depending on the environment.
8
TRENDnet User’s Guide
Installation
1.
Unscrew the black cap covering the PoE port of the TEW-676APBO
2.
Install the waterproof kit and insert one end of an Ethernet cable through the kit.
TEW-676APBO
3.
Connect the Ethernet cable to the
PoE
port of the TEW-676APBO
7.
Connect the other end of the Ethernet cable to the LAN port of your network.
8.
Plug the power cord into the injector. Then connect the plug into a power outlet.
Configuration
1.
Open a web browser, type the IP address of the Access Point and then press
Enter
.
The default IP address is
192.168.10.100.
4.
Tighten and secure the seal nut of the waterproof kit.
5.
Connect the other end of the Ethernet cable to the
P+DATA Out
port on the PoE injector.
2.
Enter the
Username
and
Password
and click
OK
. By default the Username:
root
and
Password:
root
.
3.
Click the
Wizard
button and follow the setup wizard instructions. Click
Finish
to complete installation.
6.
Using another Ethernet cable, connect one end to the
DATA IN
port of the injector.
© Copyright 2012TRENDnet. All Rights Reserved.
9
TRENDnet User’s Guide
Applications
TEW-676APBO is multiple mode system which can be configured either as a wireless gateway or an access point as desired. It also can be used as a WDS link for Ethernet network expansion. This section depicts different applications on
Router AP Mode
,
AP
Mode
,
WDS Mode
,
CPE Mode
,
Client Bridge + Universal Repeater Mode
and
CPE + AP
Mode
.
Router AP Mode (Gateway + Access Point + WDS)
Example 1 :
Router AP without WDS
It can be deployed as a gateway with wireless Access Point
NAT
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
Remote Bass
WDS
:
Example 2 :
Router AP with WDS
It can be deployed as a gateway with wireless Access Point and provides
WDS link for network extension.
AP Mode (including Access Point + WDS)
An access point can be either a main, relay or remote base station. A main base station is typically connected to a wired network via the Ethernet port. A relay base station relays data between main base stations and relay stations or remote base stations with clients. A remote base station is the end point to accept connections from wireless clients and pass data upwards to a network wirelessly.
Example 1 :
Access Point without WDS
It can be deployed as a tradition fixed wireless Access Point
10
TRENDnet User’s Guide
Example 2 :
Access Point with WDS
It can be deployed as a tradition fixed wireless Access Point and provides
WDS link to expand network
Main
WDS
Main
Remote
WDS
Remote
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
WDS Mode (Pure WDS)
An access point can be either a main, relay or remote base station. A main base station is typically connected to a wired network via the Ethernet port. A relay base station relays data between main base stations and relay stations or remote base stations with clients. A remote base station is the end point to accept connections from wireless clients and pass data upwards to a network wirelessly. In this mode, it can support single or multiple WDS links and no wireless clients
can
associate with it.
Example 1 :
Point-to-Point
WDS
Main
Example 2 :
Point-to-Multi-Point
11
TRENDnet User’s Guide
Main Base
Station
WIFI WAN
Example 3 :
Multi-Point Repeating bridge
Inter
NA
LAN
CPE Mode
It can be used as an Outdoor Customer Premises Equipment (CPE) to receive wireless signal over last mile application, helping WISPs deliver wireless broadband
Internet service to residents and business customers. In the CPE mode, TEW-
676APBO is a gateway enabled with NAT and DHCP Server functions. The wired clients connected to TEW-676APBO are in different subnet from those connected to
Main Base Station, and, in CPE mode, it does not accept wireless association from wireless clients.
Main Base
Station
WIFI WAN
NA
T
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
Client Bridge + Universal Repeater Mode
It can be used as an Client Bridge + Universal Repeater to receive wireless signal over last mile applications, helping WISPs deliver wireless broadband Internet service to new residential and business customers. In this mode, TEW-676APBO is enabled with DHCP Server functions. The wired clients of TEW-676APBO are in
the same subnet
from Main Base Station and it
accepts
wireless connections from client devices.
CPE + AP Mode (Router Client + Access Point)
It can be used as an Outdoor Customer Premised Equipment(CPE) to receive wireless signal over the last mile, helping WISPs deliver wireless broadband Internet service to new residential and business customers. In this mode, theTEW-676APBO is a gateway with NAT and DHCP Server functions. The wireless and wired clients of
TEW-676APBO are on the
different subnet
from Main Base Station and it
accepts
wireless connections from client devices.
12
TRENDnet User’s Guide
Web Management Interface Instructions
TEW-676APBO supports web-based configuration. Upon the completion of hardware installation, TEW-676APBO can be configured through a PC/NB by using its web browser such as Internet Explorer version 6.0.
Default IP Address :
192.168.10.100
Default IP Netmask :
255.255.255.0
Default User Name and Password :
root/root
The default user name and password for both root manager account and admin manager account are as follows:
Mode
Router
AP
CPE AP WDS
UR +
CB
CPE + AP
Management
Account
Root Root Admin Root Root Root Root Admin
User Name
root root admin root root root Root admin
Password
default default admin default default default default admin
Step
IP Segment Set-up for Administrator's PC/NB
Set the IP segment of the administrator's computer to be in the same range as
TEW-676APBO for accessing the system. Do not duplicate the IP Address used here with IP Address of TEW-676APBO or any other device within the network
Example of Segment :
The valid range is 1 ~ 254 and 192.168.10.254 shall be avoided because it is already assigned to TEW-676APBO . 192.168.10.10 is used in the example below.
IP Address : 192.168.10.10
IP Netmask : 255.255.255.0
Launch Web Browser
Launch web browser to access the web management interface of system by
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
entering the default IP Address, http://192.168.10.254
, in the URL field, and then press
Enter
.
System Login
The system manager Login Page then appears.
Enter “
root
” as
User name
and “
root
” as
Password
, and then click OK to login to the system; the root manager account is used as an example here.
Login Success
System Overview page will appear after successful login.
AP Mode Configuration
When AP mode is chosen, the system can be configured as an Access Point. This section provides detailed explanation for users to configure in the AP mode with help of illustrations. In the AP mode, functions listed in the table below are also available from the Web-based GUI interface.
Option System Wireless Utilities Status
Operating Mode General Setup Profiles Settings
System
Overview
Firmware
Upgrade
Functions
LAN Advanced Setup Clients
Management Virtual AP Network Utility WDS Status
Time Server
SNMP
WDS Setup
AP Mode Functions
Reboot Extra Info
Event Log
13
TRENDnet User’s Guide
External Network Connection
Network Requirement
Normally, TEW-676APBO connects to a wired LAN and provides a wireless connection point to associate with wireless client as shown in Figure 3-1. Then, Wireless clients could access to LAN or Internet by associating themselves with TEW-676APBO set in AP mode.
Configure LAN IP
Here are the instructions to setup the local IP Address and Netmask.
Please click on
System -> LAN
and follow the below setting.
Mode :
Check either “Static IP” or “Dynamic IP” button as desired to set up the system IP of LAN port .
Static IP :
The administrator can manually setup the LAN IP address when static IP is available/ preferred.
IP Address :
The IP address of the LAN port; default IP address is
192.168.2.254
IP Netmask :
The Subnet mask of the LAN port; default Netmask is
255.255.255.0
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
IP Gateway :
The default gateway of the LAN port; default Gateway is
192.168.2.1
Dynamic IP :
This configuration type is applicable when the TEW-676APBO is connected to a network with the presence of a DHCP server; all related IP information will be provided by the DHCP server automatically.
Hostname :
The Hostname of the LAN port
DNS :
Check either “No Default DNS Server” or “Specify DNS Server IP” button as desired to set up the system DNS.
Primary :
The IP address of the primary DNS server.
Secondary:
The IP address of the secondary DNS server.
802.1d Spanning Tree
The spanning tree network protocol provides a loop free topology for a bridged LAN between LAN interface and 4 WDS interfaces from wds0 to wds3. The Spanning
Tree Protocol, which is also referred to as STP, is defined in the IEEE Standard
802.1d. The Spanning tree always enabled on TEW-676APBO. Below Figures depict a loop for a bridged LAN between LAN and WDS link
Click
Save
button to save your changes. Click
Reboot
button to activate your changes
14
TRENDnet User’s Guide
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
WDS
LOOP
Remote Base Station
WDS
WDS
B locked by
Spanning Tree Protocol
Remote Base Station
WDS
LOOP
Remote Base Station
WDS
B locked by
Spanning Tree Protocol
Base Station
WDS
Remote Base Station
15
TRENDnet User’s Guide
Wireless LAN Network
The network manager can configure related wireless settings,
General Settings,
Advanced Settings, Virtual AP(VAP) Setting, Security Settings
and
MAC Filter Settings
.
Wireless General Setup
The administrator can change the data transmission, channel and output power settings for the system. Please click on
Wireless -> General Setup
and follow the below setting.
MAC Address :
The MAC address of the Wireless interface is displayed here.
Band Mode :
Select an appropriate wireless band; bands available are
801.11a
or
802.11a/n mixed mode
.
AP Isolation :
Select
Enable
, all clients will be isolated from each VAP, that means different VAP's clients can not reach to each other.
Transmit Rate Control :
Select the desired rate from the drop-down list; the options are auto or ranging from
6
to
54Mbps
only for
802.11a
mode.
Tx Power :
You can adjust the output power of the system to get the appropriate coverage for your wireless network. Specify digit numbers between
1
to
100
(the
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
unit is %) for your environment. If you are not sure which setting to choose, then keep the default setting,
100
%.
When
Band Mode
select in
802.11a only mode
, the
HT(High Throughput)
settings should be hidden immediately.
HT TxStream
/
RxStream :
By default, it's
2
.
Operating Mode :
By default, it's Mixed Mode.
Mixed Mode :
In this mode packets are transmitted with a preamble
compatible with the legacy 802.11a/g, the rest of the packet has a new format.
In this mode the receiver shall be able to decode both the Mixed Mode packets and legacy packets.
Green Field :
In this mode high throughput packets are transmitted without a legacy compatible part.
Channel Bandwidth :
The "
20/40
” MHz option is usually best. The other option is available for special circumstances.
Guard Interval :
Using “
Auto
” option can increase throughput. However, it can also
increase error rate in some installations, due to increased sensitivity to radiofrequency reflections. Select the option that works best for your installation.
MCS :
This parameter represents transmission rate. By default (Auto) the fastest possible transmission rate will be selected. You have the option of selecting the speed if necessary. (Refer to
Appendix C. MCS Data Rate
)
Reverse Direction Grant(RDG) :
Disable or enable reserve direction grant. Default is enabled.
A-MSDU :
Aggregated Mac Service Data Unit. Select
Enable
to allow aggregation for multiple MSDUs in one MPDU Default is disabled.
Auto Block ACK :
Disable or enable auto block ACK. Default is enabled.
Decline BA Request :
Disable or enable decline BA request. Default is disabled.
Change these settings as described here and click
Save
button to save your changes.
Click
Reboot
button to activate your changes. The items in this page are for AP's RF general settings and will be applied to
all VAPs
and
WDS Links
.
Wireless Advanced Setup
To achieve optimal wireless performance, it is necessary to tweak advance setting per requirements properly, not necessary higher the better or lower.
The administrator can change the RTS threshold and fragmentation threshold settings for the system. Please click on
Wireless -> Advanced Setup
and follow the below setting.
16
TRENDnet User’s Guide
Short Slot :
By default, it’s “
Enable
” for reducing the slot time from the standard
20
microseconds
to the
9
microsecond
short slot time
Slot time is the amount of time a device waits after a collision before retransmitting a packet. Reducing the slot time decreases the overall back-off, which increases throughput. Back-off, which is a multiple of the slot time, is the random length of time a station waits before sending a packet on the LAN. For a sender and receiver own right of the channel the shorter slot time help manage shorter wait time to retransmit from collision because of hidden wireless clients or other causes. When collision sources can be removed sooner and other senders attempting to send are listening the channel(CSMA/CA) the owner of the channel should continue ownership and finish their transmission and release the channel. Then, following ownership of the channel will be sooner for the new pair due to shorter slot time.
However, when long duration of existing collision sources and shorter slot time exist the owners might experience subsequent collisions. When adjustment to longer slot time can’t improve performance then RTS/CTS could supplement and help improve performance.
Extra Slot Time :
Slot time is in the range of
1~255
and set in unit of
microsecond
.
The default value is
9
microsecond.
ACK Timeout :
ACK timeout is in the range of
1~255
and set in unit of
microsecond
.
The default value is
32
microsecond.
All data transmission in 802.11b/g request an “Acknowledgement” (ACK) send by
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
receiving radio. The transmitter will resend the original packet if correspondent ACK failed to arrive within specific time interval, also refer to as “ACK Timeout”.
ACK Timeout is adjustable due to the fact that distance between two radio links may vary in different deployment. ACK Timeout makes significant influence in performance of long distance radio link. If ACK Timeout is set too short, transmitter will start to “Resend” packet before ACK is received, and throughputs become low due to excessively high re-transmission.
ACK Timeout is best determined by distance between the radios, data rate of average environment. The Timeout value is calculated based on round-trip time of packet with a little tolerance, So, if experiencing re-transmissions or poor performance the ACK Timeout could be made longer to accommodate.
Beacon Interval :
Beacon Interval is in the range of
20
~
1024
and set in unit of
millisecond
. The default value is
100
msec.
Access Point (AP) in IEEE 802.11 will send out a special approximated 50-byte frame, called “Beacon”. Beacon is broadcast to all the stations, provides the basic information of AP such as SSID, channel, encryption keys, signal strength, time stamp, support data rate.
All the radio stations received beacon recognizes the existence of such AP, and may proceed next actions if the information from AP matches the requirement. Beacon is sent on a periodic basis, the time interval can be adjusted.
By increasing the beacon interval, you can reduce the number of beacons and associated overhead, but that will likely delay the association and roaming process because stations scanning for available access points may miss the beacons. You can decrease the beacon interval, which increases the rate of beacons. This will make the association and roaming process very responsive; however, the network will incur additional overhead and throughput will go down.
DTIM Interval :
The DTIM interval is in the range of
1
~
255
. The default is
1
.
DTIM is defined as
Delivery Traffic Indication Message
. It is used to notify the wireless stations, which support power saving mode, when to wake up to receive multicast frame. DTIM is necessary and critical in wireless environment as a mechanism to fulfill power-saving synchronization.
A DTIM interval is a count of the number of beacon frames that must occur before the access point sends the buffered multicast frames. For instance, if DTIM Interval is set to 3, then the Wi-Fi clients will expect to receive a multicast frame after receiving three Beacon frame. The higher DTIM interval will help power saving and possibly decrease wireless throughput in multicast applications.
17
TRENDnet User’s Guide
Fragment Threshold :
The Fragment Threshold is in the range of
256
~
2346
byte.
The default is
2346
byte.
Each Wi-Fi packet can be divided into smaller packets, marked with a sequential fragment number and re-assemble in the receiving ends. The purpose is to make a short frame, instead of long frame, transmitting by radio in a heavy noisy environment. Because of sending smaller frames, corruptions are much less likely to occur. The pros is obvious, the cons is the overhead for transmission. So, in a clean environment, higher fragment threshold can be an option to increase throughput.
Fragmentation will be triggered by setting the Fragment Threshold, usually in Bytelength. Only when the frame size is over the Threshold, fragmentation will take place automatically.
RTS Threshold :
TRTS Threshold is in the range of
1~2347
byte. The default is
2347
byte.
The main purpose of enabling RTS by changing RTS threshold is to reduce possible collisions due to hidden wireless clients. RTS in AP will be enabled automatically if the packet size is larger than the Threshold value. By default, RTS is disabled in a normal environment supports non-jumbo frames.
Short Preamble :
By default, it’s “
Enable
”. To
Disable
is to use Long 128-bit
Preamble Synchronization field.
The preamble is used to signal "here is a train of data coming" to the receiver. The short preamble provides 72-bit Synchronization field to improve WLAN transmission efficiency with less overhead.
Tx Burst :
By default, it’s “
Enable
”. To
Disable
is to deactivate Tx Burst.
With TX burst enabled, AP will send many packets in a burst, without collision detection and RTS/CTS for each packet. TX Burst have better throughput but cause interference with other APs in channel.
Pkt_Aggregate :
By default, it's “
Enable
”
Increase efficiency by aggregating multiple packets of application data into a single transmission frame. In this way, 802.11n networks can send multiple data packets with the fixed overhead cost of just a single frame.
WMM :
By default, it's “
Disable
”. To
Enable
is to use WMM and the WMM parameters should appears.
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
Queue
WMM Parameters of Access Point :
This affects traffic flowing from the access point to the client station
Data
Transmitted
AP to Clients
Priority Description
AC_BK Background. Low
High throughput. Bulk data that requires maximum throughput and is not time-sensitive is sent to this queue (FTP data, for example).
AC_BE Best Effort Medium Medium throughput and delay. Most traditional IP
AC_VI Video
AC_VO Voice
Configuring QoS options consists of setting parameters on existing queues for different types of wireless traffic. You can configure different minimum and maximum wait times for the transmission of packets in each queue based on the requirements of the media being sent. Queues automatically provide minimum transmission delay for Voice, Video, multimedia, and mission critical
18
TRENDnet User’s Guide
applications, and rely on best-effort parameters for traditional IP data.
As an Example, time-sensitive Voice & Video, and multimedia are given effectively higher priority for transmission (lower wait times for channel access), while other applications and traditional IP data which are less timesensitive but often more data-intensive are expected to tolerate longer wait times.
Aifsn
: The Arbitration Inter-Frame Spacing Number specifies a wait time
(in milliseconds) for data frames
CWmin
: Minimum Contention Window. This parameter is input to the algorithm that determines the initial random back-off wait time
("window") for retry of a transmission. The value specified here in the
Minimum Contention Window is the upper limit (in milliseconds) of a range from which the initial random back-off wait time is determined.
CWmax
: Maximum Contention Window. The value specified here in the
Maximum Contention Window is the upper limit (in milliseconds) for the doubling of the random back-off value. This doubling continues until either the data frame is sent or the Maximum Contention Window size is reached. Once the Maximum Contention Window size is reached, retries will continue until a maximum number of retries allowed is reached. Valid values for the "cwmax" are 1, 3, 7, 15, 31, 63, 127, 255, 511, or 1024. The value for "cwmax" must be higher than the value for "cwmin".
Txop
: Transmission Opportunity is an interval of time when a WME AP has the right to initiate transmissions onto the wireless medium (WM).
This value specifies (in milliseconds) the Transmission Opportunity (TXOP) for AP; that is, the interval of time when the WMM AP has the right to initiate transmissions on the wireless network.
ACM :
Admission Control Mandatory, ACM only takes effect on AC_VI and
AC_VO. When you do not click Checkbox, it means that the ACM is controlled by the connecting AP. If you click Checkbox, it means that the
Client is in charge.
AckPolicy :
Acknowledgment Policy, WMM defines two ACK policies:
Normal ACK
and
No ACK
. Click “
Checkbox
” indicates “
No ACK
”
When the no acknowledgment (No ACK) policy is used, the recipient does not acknowledge received packets during wireless packet exchange. This policy is suitable in the environment where communication quality is fine and interference is weak. While the No ACK policy helps improve transmission efficiency, it can cause increased packet loss when communication quality deteriorates. This is because when this policy is
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
used, a sender does not retransmit packets that have not been received by the recipient.
When the Normal ACK policy is used, the recipient acknowledges each received unicast packet.
WMM Parameters of Station :
This affects traffic flowing from the client station to the access point.
Aifsn
: The Arbitration Inter-Frame Spacing Number specifies a wait time
(in milliseconds) for data frames
CWmin
: Minimum Contention Window. This parameter is input to the algorithm that determines the initial random backoff wait time
("window") for retry of a transmission. The value specified here in the Minimum Contention Window is the upper limit (in milliseconds) of a range from which the initial random backoff wait time is determined.
CWmax
: Maximum Contention Window. The value specified here in the
Maximum Contention Window is the upper limit (in milliseconds) for the doubling of the random backoff value. This doubling continues until either the data frame is sent or the Maximum Contention Window size is reached. Once the Maximum Contention Window size is reached, retries will continue until a maximum number of retries allowed is reached. Valid values for the "cwmax" are 1, 3, 7, 15, 31, 63, 127, 255, 511, or 1024. The value for "cwmax" must be higher than the value for "cwmin".
Txop
: Transmission Opportunity is an interval of time when a WME AP has the right to initiate transmissions onto the wireless medium (WM).
This value specifies (in milliseconds) the Transmission Opportunity (Txop) for AP; that is, the interval of time when the WMM AP has the right to initiate transmissions on the wireless network.
ACM :
Admission Control Mandatory, ACM only takes effect on AC_VI and
AC_VO. When you do not click Checkbox, it means that the ACM is controlled by the connecting AP. If you click Checkbox, it means that the
Client is in charge.
19
TRENDnet User’s Guide
Queue
Data
Transmitted
Clients to AP
Priority Description
AC_BK
AC_BE
Background. Low
High throughput. Bulk data that requires maximum throughput and is not time-sensitive is sent to this queue (FTP data, for example).
Best Effort Medium Medium throughput and delay. Most traditional IP
AC_VI Video
AC_VO Voice
Click
Save
button to save your changes. Click
Reboot
button to activate your changes.
The items in this page are for AP's RF advanced settings and will be applied to
all VAPs
and
WDS Links
.
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
Create Virtual AP (VAP)
The TEW-676APBO support broadcasting multiple SSIDs, allowing the creation of Virtual
Access Points, partitioning a single physical access point into
7
logical access points, each of which can have a different set of security, VLAN Tag(ID) and network settings.
Figure
3-2
shows multiple SSIDs with different security type and VLAN settings.
Sales Network
VLA
N #1
W
SSID 1
Engineer Network
Market Network
Guest Network
Accounting Network
VLA
N #2
VLA
N #3
VLA
N #4
E
WPA-
PSK/TKIP
WPA-
PSK/AES
WPA2-
PSK/TKIP
WPA2-
PSK/AES
SSID 2
SSID 3
SSID 4
VLA
N #5
SSID 5
Multiple SSIDs with different Security Type and VLAN Tag
20
TRENDnet User’s Guide
Virtual AP Overview
The administrator can view all of the Virtual AP's settings via this page.
Please click on
Wireless -> Virtual AP Setup
and the Virtual AP Overview Page appears.
VAP :
Indicate the system's Virtual AP.
ESSID :
Indicate the ESSID of the respective Virtual AP
MAC Address :
The MAC address of the VAP Interface is displayed here. When you enable AP and reboot system, the MAC address will display here.
Status :
Indicate the Status of the respective Virtual AP. The
Primary AP
always on.
Security Type :
Indicate an used security type of the respective Virtual AP.
MAC Filter :
Indicate an used MAC filter of the respective Virtual AP.
Edit :
Click
Edit
button to configure Virtual AP's settings, including security type and
MAC Filter.
Virtual AP Setup
For each Virtual AP, administrators can configure SSID, VLAN tag(ID), SSID broadcasting,
Maximum number of client associations, security type settings.
Click
Edit
button on the Edit column, and then a Virtual AP setup page appears.
© Copyright 2012TRENDnet. All Rights Reserved.
VAP0
VAP1
TEW-676APBO
Enable AP :
By default, it’s “
Disable
” for VAP1 ~ VAP6.
The Primary AP always enabled
.
Select “
Enable
” to activate VAP or click “
Disable
” to deactivate this function
ESSID :
Extended Service Set ID, When clients are browsing for available wireless networks, this is the SSID that will appear in the list. ESSID will determine the service type available to AP's clients associated with the specified VAP.
Client Isolation :
Select
Enable
, all clients will be isolated from each other, that means all clients cannot reach to other clients. Below Figures depict Client Isolation and AP Isolation
Cllent Isolation
VAP2
AP Isolation
Hidden SSID :
By default, it’s “
Disable
”
.
Enable this option to stop the SSID broadcast in your network. When disabled, people could easily obtain the SSID information with the site survey software and get access to the network if security is not turned on. When enabled, network security is enhanced. It’s suggested to enable it after AP security settings are archived and setting of AP clients could make to associate to it.
Maximum Clients :
The default value is
32
. You can enter the number of wireless clients that can associate to a particular SSID. When the number of client is set to 5, only 5 clients at most are allowed to connect to this VAP.
VLAN Tag(ID) :
By default, it’s selected “
Disable
”.
This system supports tagged Virtual LAN(VLAN). A valid number of
1
to
4094
can be entered after it’s enabled. If your network utilize VLANs you could tie a VLAN Tag to a specific SSID, and packets from/to wireless clients belonging to that SSID will be tagged with that VLAN Tag. This enables security of wireless applications by applying VLAN Tag.
21
TRENDnet User’s Guide
Security Type :
Select the desired security type from the drop-down list; the options are
Disable
,
WEP
,
WPA-PSK
,
WPA2-PSK
,
WPA-Enterprise
,
WPA2-Enterprise
and
WEP 802.1X
.
Disable :
Data are unencrypted during transmission when this option is selected.
WEP :
Wired Equivalent Privacy(WEP) is a data encryption mechanism based on a 64-bit or 128-bit shared key.
TEW-676APBO
Cipher Suite :
By default, it is
AES
. Select either AES or TKIP cipher suites
Pre-shared Key :
Enter the pre-shared key; the format shall go with the selected key type.
Group Key Update Period :
By default, it is
3600
seconds. This time interval for rekeying GTK, broadcast/multicast encryption keys, in seconds. Entering the time-length is required.
WPA-Enterprise (or WPA2-Enterprise):
The RADIUS authentication and encryption will be both enabled if this is selected.
Authentication Method :
Enable the desire option among
OPEN
,
SHARED
or
WEPAUTO
.
Key Index : Key index is used to designate the WEP key during data transmission. 4 different WEP keys can be entered at the same time, but only
one is chosen.
WEP Key # :
Enter
HEX
or
ASCII
format WEP key value; the system supports up to 4 sets of WEP keys.
Key Length
64-bit
128-bit
10 characters
26 characters
WPA-PSK (or WPA2-PSK) :
Hex
5 characters
ASCII
13 characters
WPA (or WPA2) Algorithms, allows the system accessing the network by using the WPA-PSK protected access.
© Copyright 2012TRENDnet. All Rights Reserved.
•
•
•
•
•
•
•
WPA General Settings :
Cipher Suite :
By default, it is AES. Select either AES or TKIP cipher suites
Group Key Update Period :
By default, it’s
3600
seconds. This time interval for rekeying GTK, broadcast/multicast encryption keys, in seconds. Entering the time-length is required.
PMK Cache Period :
By default, it's 10 minutes. Set
WPA2
PMKID cache timeout period, after time out, the cached key will be deleted.
Pre-Authentication :
By default, it's “Disable”. To Enable is use to speed up roaming before pre-authenticating IEEE 802.1X/EAP part of the full RSN authentication and key handshake before actually associating with a new AP.
Radius Server Settings :
IP Address :
Enter the IP address of the Authentication RADIUS server.
Port :
By default, it’s
1812
.
The port number used to communicate with RADIUS server.
Shared secret :
A secret key used between system and RADIUS server. Supports
8
to
64
characters.
22
TRENDnet User’s Guide
•
•
Session Timeout :
The Session timeout is in the range of
0
~
60
seconds
. The default is
0
to disable re-authenticate service.
Amount of time before a client will be required to re-authenticate.
WEP 802.1X :
When WEP 802.1x Authentication is enabled, please refer to the following Dynamic WEP and RADIUS settings to complete configuration.
TEW-676APBO
Wireless MAC Filter Setup
Continue
Virtual AP Setup
section. For each Virtual AP setting, the administrator can allow or reject clients to access each Virtual AP.
•
•
•
•
Radius Server Settings :
IP Address :
Enter the IP address of the Authentication RADIUS server.
Port :
By default, it’s
1812
.
The port number used to communicate with RADIUS server.
Shared secret :
A secret key used between system and RADIUS server. Supports
8
to
64
characters.
Session Timeout :
The Session timeout is in the range of
0
~
60
seconds
. The default is
0
to disable re-authenticate service.
•
Amount of time before a client will be required to re-authenticate.
Click
Save
button to save your changes. Click
Reboot
button to activate your changes
© Copyright 2012TRENDnet. All Rights Reserved.
MAC Filter Setup :
By default, it’s “
Disable
”. Options are
Disable, Only Deny List
MAC or Only Allow List MAC
.
Two ways to set MAC filter rules :
Only Allow List MAC
.
The wireless clients in the “
Enable
” list will be
allowed
to access the Access Point;
All others or clients in the “
Disable
” list will be
denied
.
Only Deny List MAC
.
The wireless clients in the “
Enable
” list will be
denied
to access the Access Point; All others or clients in the “
Disable
” list will be
allowed
.
Add a station MAC :
Enter MAC address (e.g. aa:bb:cc:00:00:0a) and click “
Add
” button, then the MAC address should display in the “
Enable
” List.
There are a maximum of
20
clients allowed in this “Enable” List. The MAC addresses of the wireless clients can be added and removed to the list using the
Add
and
Remove
buttons
.
Click
Reboot
button to activate your changes
23
TRENDnet User’s Guide
Wireless Network Expansion
The administrator could create WDS Links to expand wireless network. When WDS is enabled, access point functions as a wireless bridge and is able to communicate with other access points via WDS links.
A WDS link is bidirectional and both side must support WDS. Access points know each other by MAC Address. In other words, each access point needs to include MAC address of its peer. Ensure all access points are configured with the same channel and own same security type settings.
Remote Bass Station
WDS
SSID:
Please click on
Wireless -> WDS Setup
and follow the below setting.
TEW-676APBO
Security Type :
Option is “
Disable
”, “
WEP
”, “
TKIP
”or “
AES
” from drop-down list.
Needs the same type to build WDS links. Security type takes effect when WDS is enabled.
WEP Key :
Enter
5 / 13 ASCII
or
10 / 26 HEX
format WEP key.
TKIP Key :
Enter
8
to
63 ASCII
or
64 HEX
format TKIP key.
AES Key :
Enter
8
to
63 ASCII
or
64 HEX
format AES key.
WDS MAC List
Enable :
Click
Enable
to create WDS link.
WDS Peer's MAC Address :
Enter the MAC address of WDS peer.
Description :
Description of WDS link.
Click
Save
button to save your changes. Click
Reboot
button to activate your changes
System Status
This section breaks down into subsections of
System Overview
,
Associated Clients
Status
,
WDS Link Status
,
Extra Information
and
Event Log
.
System Overview
Display detailed information of
System, Network, LAN and Wireless
in the System
Overview page.
System :
Display the information of the system.
© Copyright 2012TRENDnet. All Rights Reserved.
System Name :
The name of the system.
Operating Mode :
The mode currently in service.
Location :
Deployed geographical location.
24
TRENDnet User’s Guide
Description :
A description of the system.
Firmware Version :
The current installed firmware version.
Firmware Date :
The build time of installed firmware.
Device Time :
The current time of the system.
System Up Time :
The time period that system has been in service since last reboot.
Network Information :
Supports Static or Dynamic modes on the LAN interface.
TEW-676APBO
Wireless Information :
Display total received and transmitted statistics on available
Virtual AP.
IP Address :
The management IP of system. By default, it’s 192.168.2.254.
IP Netmask :
The network mask. By default, it’s 255.255.255.0.
IP Gateway :
The gateway IP address and by default, it’s 192.168.2.1.
Primary DNS :
interface.
The primary DNS server in service.
Secondary DNS :
The secondary DNS server in service.
LAN Information :
Display total received and transmitted statistics on the LAN
MAC Address :
The MAC address of the Wireless port.
Channel :
The current channel on the Wireless port.
Rate :
The current Bit Rate on the Wireless port.
Receive bytes :
The total received packets in bytes on the Wireless port.
Receive packets :
The total received packets on the Wireless port.
Transmit bytes :
The total transmitted packets in bytes on the Wireless port.
Transmit packets :
The total transmitted packets on the Wireless port.
Associated Clients Status
It displays ESSID, on/off Status, Security Type, total number of wireless clients associated with all Virtual AP.
MAC Address :
The MAC address of the LAN port.
Receive bytes :
The total received packets in bytes on the LAN port.
Receive packets :
The total received packets of the LAN port.
Transmit bytes :
The total transmitted packets in bytes of the LAN port.
Transmit packets :
The total transmitted packets of the LAN port.
© Copyright 2012TRENDnet. All Rights Reserved.
25
TRENDnet User’s Guide
TEW-676APBO
VAP Information :
Highlights key VAP information.
VAP :
Available VAP from Primary AP to VAP6.
ESSID :
Display name of ESSID for each VAP.
MAC Address :
Display MAC address for each VAP.
Status :
On/Off
Security Type :
Display chosen security type; WEP, WPA/WPA2-PSK,
WPA/WPA2-Enterprise.
Clients :
Display total number of wireless connections for each VAP.
VAP Clients :
Display all associated clients on each Virtual AP.
MAC Address :
MAC address of associated clients
Signal Strength ANT0/ANT1 :
Signal Strength of from associated clients.
Bandwidth :
Channel bandwidth of from associated clients
Idle Time :
Last inactive time period in seconds for a wireless connection.
Connect Time :
Total connection time period in seconds for a wireless
connection.
Disconnect :
Click “
Delete
” button to manually disconnect a wireless client in a
Virtual AP.
Show WDS Link Status
Peers MAC Address, antenna 0/1 received signal strength, phy mode and channel bandwidth for each WDS are available.
© Copyright 2012TRENDnet. All Rights Reserved.
MAC Address :
Display MAC address of WDS peer.
Signal Strength ANT0/ANT1 :
Indicate the signal strength of the respective WDS links.
Phy Mode :
Indicate the phy mode of the respective WDS linked.
BandWidth :
Indicate the channel bandwidth of the respective WDS linked.
MCS :
Indicate the MCS of the respective WDS linked.
SGI :
Indicate the SGI (Short Guard Interval) of the respective WDS linked. “1” indicate the Short Guard Interval, “0” indicate the Long Guard Interval.
Extra Information
Users could pull out information such as Route table, ARP table, MAC table, Bridge table or STP available in the drop-down list from system. The “Refresh” button is used to retrieve latest table information.
Route table information :
Select “
Route table information
” on the drop-down list to display route table.
26
TRENDnet User’s Guide
TEW-676APBO could be used as a L2 or L3 device. It doesn’t support dynamic routing protocols such as RIP or OSPF. Static routes to specific hosts, networks or default gateway are set up automatically according to the IP configuration of system's interfaces. When used as a L2 device, it could switch packets and, as L3 device, it’s capable of being a gateway to route packets inward and outward.
TEW-676APBO
ARP table Information :
Select “
ARP Table Information
” on the drop-down list to display ARP table.
ARP associates each IP address to a unique hardware address (MAC) of a device. It is important to have a unique IP address as final destination to switch packets to.
Bridge table information :
Select “
Bridge Table information
” on the drop-down list to display bridge table.
Bridge table will show Bridge ID and STP's Status on the each Ethernet bridge and its attached interfaces, the Bridge Port should be attached to some interfaces (e.g. eth2, ra0~ra6 and wds0~wds3).
This table displays local MAC addresses associated with wired or wireless interfaces, but also remember non-local MAC addresses learned from wired or wireless interfaces.
Ageing timers will be reset when existing MAC addresses in table are learned again or added when new MAC addresses are seen from wired or wireless interfaces as well. When time runs out for a particular entry, it will be pruned from the table. In that situation, switching packet to that particular MAC address will be dropped.
Bridge STP Information :
Select “
Bridge STP Information
” on the drop-down list to display a list of bridge STP information.
Bridge MAC information :
Select “
Bridge MACs Information
” on the drop-down list to display MAC table.
© Copyright 2012TRENDnet. All Rights Reserved.
27
TRENDnet User’s Guide
TEW-676APBO
Event Log
The Event log displays system events when system is up and running. Also, it becomes very useful as a troubleshooting tool when issues are experienced in system.
© Copyright 2012TRENDnet. All Rights Reserved.
Time :
The date and time when the event occurred.
Facility :
It helps users to identify source of events such “System” or “User”
Severity :
Severity level that a specific event is associated such as “info”, “error”,
“warning”, etc.
Message :
Description of the event.
Click
Refresh
button to renew the log, or click
Clear
button to clear all the record.
28
TRENDnet User’s Guide
WDS Mode Configuration
Please refer to illustrations of the section 1.3 for possible applications in the WDS mode.
This section provides detailed explanation for users to configure in the WDS mode with help of illustrations. In the WDS mode, functions listed in the table below are also available from the Web-based GUI interface.
Option
Functions
System
Operating
LAN
Management
Time Server
SNMP
Wireless
General Setup
Advanced Setup
WDS Setup
Utilities
Profiles Settings
Firmware
Network Utility
Reboot
Status
System
WDS Status
Extra Info
Event Log
WDS Mode Functions
External Network Connection
Network Requirement
You could expand your Ethernet network via WDS link. In this mode, the TEW-676APBO connects directly to a wired LAN, and wirelessly bridges to a remote access point via a
WDS link as shown in Figure 4-1. In the mode, it can’t associate with any wireless clients.
WDS
Point to Point network Configuration
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
Configure LAN IP
Here are the instructions for how to setup the local IP Address and Netmask.
Please click on
System -> LAN
and follow the below setting.
Mode :
Check either “Static IP” or “Dynamic IP” button as desired to set up the system IP of LAN port .
Static IP :
The administrator can manually setup the LAN IP address when
static IP is available/ preferred.
IP Address :
The IP address of the LAN port; default IP address is
192.168.2.254
IP Netmask :
The Subnet mask of the LAN port; default Netmask is
255.255.255.0
IP Gateway :
The default gateway of the LAN port; default Gateway is
192.168.2.1
Dynamic IP :
This configuration type is applicable when the TEW-676APBO is connected to a network with the presence of a DHCP server; all related IP information will be provided by the DHCP server automatically.
Hostname :
The Hostname of the LAN port
DNS :
Check either “No Default DNS Server” or “Specify DNS Server IP” button as desired to set up the system DNS.
Primary :
The IP address of the primary DNS server.
Secondary :
The IP address of the secondary DNS server.
Click
Save
button to save your changes. Click
Reboot
button to activate your changes
29
TRENDnet User’s Guide
Wireless Network Expansion
The network manager can configure related wireless settings,
General Settings,
Advanced Settings
and
WDS Settings
.
General Setup
The administrator can change the data transmission, channel and output power settings for the system. Please click on
Wireless -> General Setup
and follow the below setting.
TEW-676APBO
MAC Address :
The MAC address of the Wireless interface is displayed here.
Band Mode :
Select an appropriate wireless band; bands available are
801.11a
or
802.11a/n mixed mode
.
Transmit Rate Control :
Select the desired rate from the drop-down list; the options are auto or ranging from
6
to
54Mbps
only for
802.11a
mode.
Tx Power :
You can adjust the output power of the system to get the appropriate coverage for your wireless network. Specify digit number between
1
to
100
(the unit is %) for your environment. If you are not sure which setting to choose, then keep the default setting,
100
%.
When
Band Mode
select in
802.11a only mode
, the
HT(High Throughput)
settings should be hidden immediately.
HT TxStream
/
RxStream :
By default, it's
2
.
© Copyright 2012TRENDnet. All Rights Reserved.
Operating Mode :
By default, it's Mixed mode
Mixed Mode :
In this mode packets are transmitted with a preamble compatible with the legacy 802.11a/g, the rest of the packet has a new format.
In this mode the receiver shall be able to decode both the Mixed Mode packets and legacy packets.
Green Field :
In this mode high throughput packets are transmitted without a legacy compatible part.
Channel Bandwidth :
The "
20/40
” MHz option is usually best. The other option is available for special circumstances.
Guard Interval :
Using “
Auto
” option can increase throughput. However, it can also increase error rate in some installations, due to increased sensitivity to radiofrequency reflections. Select the option that works best for your installation.
MCS :
This parameter represents transmission rate. By default (Auto) the fastest possible transmission rate will be selected. You have the option of selecting the speed if necessary. (Refer to
Appendix C. MCS Data Rate
)
Reverse Direction Grant(RDG) :
Disable or enable reserve direction grant. Default is enabled.
A-MSDU :
Aggregated Mac Service Data Unit . Select
Enable
to allow aggregation for multiple MSDUs in one MPDU Default is disabled.
Auto Block ACK :
Disable or enable auto block ACK. Default is enabled.
Decline BA Request :
Disable or enable decline BA request. Default is disabled.
Change these settings as described here and click
Save
button to save your changes.
Click
Reboot
button to activate your changes. The items in this page are for AP's RF general settings and will be applied to
all WDS Links
.
30
TRENDnet User’s Guide
Wireless Advanced Setup
To achieve optimal wireless performance, it is necessary to tweak advance setting per requirements properly, not necessary higher the better or lower.
The administrator can change the RTS threshold and fragmentation threshold settings for the system. Please click on
Wireless -> Advanced Setup
and follow the below setting.
Short Slot :
By default, it’s “
Enable
” for educing the slot time from the standard
20
microseconds
to the
9
microsecond
short slot time
Slot time is the amount of time a device waits after a collision before retransmitting a packet. Reducing the slot time decreases the overall back-off, which increases throughput. Back-off, which is a multiple of the slot time, is the random length of time a station waits before sending a packet on the LAN. For a sender and receiver own right of the channel the shorter slot time help manage shorter wait time to retransmit from collision because of hidden wireless clients or other causes. When collision sources can be removed sooner and other senders attempting to send are listening the channel (CSMA/CA) the owner of the channel should continue ownership and finish their transmission and release the channel. Then, following ownership of the channel will be sooner for the new pair due to shorter slot time.
However, when long duration of existing collision sources and shorter slot time exist the owners might experience subsequent collisions. When adjustment to longer slot time can’t improve performance then RTS/CTS could supplement and help
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
improve performance.
Extra Slot Time :
Slot time is in the range of
1~255
and set in unit of
microsecond
.
The default value is
9
microsecond.
ACK Timeout :
ACK timeout is in the range of
1~255
and set in unit of
microsecond
.
The default value is
32
microsecond.
All data transmission in 802.11b/g request an “Acknowledgement” (ACK) send by receiving radio. The transmitter will resend the original packet if correspondent ACK failed to arrive within specific time interval, also refer to as “ACK Timeout”.
ACK Timeout is adjustable due to the fact that distance between two radio links may vary in different deployment. ACK Timeout makes significant influence in performance of long distance radio link. If ACK Timeout is set too short, transmitter will start to “Resend” packet before ACK is received, and throughputs become low due to excessively high re-transmission.
ACK Timeout is best determined by distance between the radios, data rate of average environment. The Timeout value is calculated based on round-trip time of packet with a little tolerance, So, if experiencing re-transmissions or poor performance the ACK Timeout could be made longer to accommodate.
Beacon Interval :
Beacon Interval is in the range of
20
~
1024
and set in unit of
millisecond
. The default value is
100
msec.
Access Point (AP) in IEEE 802.11 will send out a special approximated 50-byte frame, called “Beacon”. Beacon is broadcast to all the stations, provides the basic information of AP such as SSID, channel, encryption keys, signal strength, time stamp, support data rate.
All the radio stations received beacon recognizes the existence of such AP, and may proceed next actions if the information from AP matches the requirement. Beacon is sent on a periodic basis, the time interval can be adjusted.
By increasing the beacon interval, you can reduce the number of beacons and associated overhead, but that will likely delay the association and roaming process because stations scanning for available access points may miss the beacons. You can decrease the beacon interval, which increases the rate of beacons. This will make the association and roaming process very responsive; however, the network will incur additional overhead and throughput will go down.
DTIM Interval :
The DTIM interval is in the range of
1
~
255
. The default is
1
.
DTIM is defined as
Delivery Traffic Indication Message
. It is used to notify the wireless stations, which support power saving mode, when to wake up to receive multicast frame. DTIM is necessary and critical in wireless environment as a
31
TRENDnet User’s Guide
mechanism to fulfill power-saving synchronization.
A DTIM interval is a count of the number of beacon frames that must occur before the access point sends the buffered multicast frames. For instance, if DTIM Interval is set to 3, then the Wi-Fi clients will expect to receive a multicast frame after receiving three Beacon frame. The higher DTIM interval will help power saving and possibly decrease wireless throughput in multicast applications.
Fragment Threshold :
The Fragment Threshold is in the range of
256
~
2346
byte.
The default is
2346
byte.
Each Wi-Fi packet can be divided into smaller packets, marked with a sequential fragment number and re-assemble in the receiving ends. The purpose is to make a short frame, instead of long frame, transmitting by radio in a heavy noisy environment. Because of sending smaller frames, corruptions are much less likely to occur. The pros is obvious, the cons is the overhead for transmission. So, in a clean environment, higher fragment threshold can be an option to increase throughput.
Fragmentation will be triggered by setting the Fragment Threshold, usually in Bytelength. Only when the frame size is over the Threshold, fragmentation will take place automatically.
RTS Threshold :
TRTS Threshold is in the range of
1~2347
byte. The default is
2347
byte.
The main purpose of enabling RTS by changing RTS threshold is to reduce possible collisions due to hidden wireless clients. RTS in AP will be enabled automatically if the packet size is larger than the Threshold value. By default, RTS is disabled in a normal environment supports non-jumbo frames.
Short Preamble :
By default, it’s “
Enable
”. To
Disable
is to use Long 128-bit
Preamble Synchronization field.
The preamble is used to signal "here is a train of data coming" to the receiver. The short preamble provides 72-bit Synchronization field to improve WLAN transmission efficiency with less overhead.
Tx Burst :
By default, it’s “
Enable
”. To
Disable
is to deactivate Tx Burst.
With TX burst enabled, AP will send many packets in a burst, without collision detection and RTS/CTS for each packet. TX Burst have better throughput but cause interference with other APs in channel.
Pkt_Aggregate :
By default, it's “
Enable
”
Increase efficiency by aggregating multiple packets of application data into a single transmission frame. In this way, 802.11n networks can send multiple data packets
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
with the fixed overhead cost of just a single frame.
WMM :
By default, it's “
Disable
”. To
Enable
is to use WMM and the WMM parameters should appears.
Queue
WMM Parameters of Access Point :
This affects traffic flowing from the access point to the client station
Data
Transmitted
AP to Clients
Priority Description
AC_BK Background. Low
High throughput. Bulk data that requires maximum throughput and is not time-sensitive is sent to this queue (FTP data, for example).
AC_BE Best Effort Med Medium throughput and delay. Most traditional IP
AC_VI Video
AC_VO Voice
Configuring QoS options consists of setting parameters on existing queues for different types of wireless traffic. You can configure different minimum and maximum wait times for the transmission of packets in each queue based on the requirements of the media being sent. Queues automatically provide
32
TRENDnet User’s Guide
minimum transmission delay for Voice, Video, multimedia, and mission critical applications, and rely on best-effort parameters for traditional IP data.
As an Example, time-sensitive Voice & Video, and multimedia are given effectively higher priority for transmission (lower wait times for channel access), while other applications and traditional IP data which are less timesensitive but often more data-intensive are expected to tolerate longer wait times.
Aifsn
: The Arbitration Inter-Frame Spacing Number specifies a wait time
(in milliseconds) for data frames
CWmin
: Minimum Contention Window. This parameter is input to the algorithm that determines the initial random backoff wait time
("window") for retry of a transmission. The value specified here in the
Minimum Contention Window is the upper limit (in milliseconds) of a range from which the initial random backoff wait time is determined.
CWmax
: Maximum Contention Window. The value specified here in the
Maximum Contention Window is the upper limit (in milliseconds) for the doubling of the random backoff value. This doubling continues until either the data frame is sent or the Maximum Contention Window size is reached. Once the Maximum Contention Window size is reached, retries will continue until a maximum number of retries allowed is reached. Valid values for the "cwmax" are 1, 3, 7, 15, 31, 63, 127, 255, 511, or 1024. The value for "cwmax" must be higher than the value for "cwmin".
Txop
: Transmission Opportunity is an interval of time when a WME AP has the right to initiate transmissions onto the wireless medium (WM).
This value specifies (in milliseconds) the Transmission Opportunity (TXOP) for AP; that is, the interval of time when the WMM AP has the right to initiate transmissions on the wireless network.
ACM :
Admission Control Mandatory, ACM only takes effect on AC_VI and
AC_VO. When you do not click Checkbox, it means that the ACM is controlled by the connecting AP. If you click Checkbox, it means that the
Client is in charge.
AckPolicy :
Acknowledgment Policy, WMM defines two ACK policies:
Normal ACK
and
No ACK
. Click “
Checkbox
” indicates “
No ACK
”
When the no acknowledgment (No ACK) policy is used, the recipient does not acknowledge received packets during wireless packet exchange. This policy is suitable in the environment where communication quality is fine and interference is weak. While the No ACK policy helps improve transmission efficiency, it can cause increased packet loss when
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
Queue
AC_BK communication quality deteriorates. This is because when this policy is used, a sender does not retransmit packets that have not been received by the recipient.
When the Normal ACK policy is used, the recipient acknowledges each received unicast packet.
Data Transmitted
Clients to AP
Priority Description
Background. Low
High throughput. Bulk data that requires maximum throughput and is not time-sensitive is sent to this queue (FTP data, for example).
AC_BE Best Effort
AC_VI Video
AC_VO Voice
WMM Parameters of Station :
This affects traffic flowing from the client station to the access point.
Aifsn
: The Arbitration Inter-Frame Spacing Number specifies a wait time
(in milliseconds) for data frames
CWmin
: Minimum Contention Window. This parameter is input to the algorithm that determines the initial random backoff wait time ("window") for retry of a transmission.
The value specified here in the Minimum Contention Window is the upper limit (in milliseconds) of a range from which the initial random backoff wait time is determined.
CWmax
: Maximum Contention Window. The value specified here in the Maximum
Contention Window is the upper limit (in milliseconds) for the doubling of the random backoff value. This doubling continues until either the data frame is sent or the
Maximum Contention Window size is reached. Once the Maximum Contention Window size is reached, retries will continue until a maximum number of retries allowed is reached. Valid values for the "cwmax" are 1, 3, 7, 15, 31, 63, 127, 255, 511, or 1024. The value for "cwmax" must be higher than the value for "cwmin".
Txop
: Transmission Opportunity is an interval of time when a WME AP has the right to initiate transmissions onto the wireless medium (WM). This value specifies (in
33
TRENDnet User’s Guide
milliseconds) the Transmission Opportunity (Txop) for AP; that is, the interval of time when the WMM AP has the right to initiate transmissions on the wireless network.
ACM :
Admission Control Mandatory, ACM only takes effect on AC_VI and AC_VO. When you do not click Checkbox, it means that the ACM is controlled by the connecting AP. If you click Checkbox, it means that the Client is in charge.
Change these settings as described here and click
Save
button to save your changes.
Click
Reboot
button to activate your changes. The items in this page are for AP's RF advanced settings and will be applied to
all WDS Links
.
WDS Setup
The administrator could create WDS Links to expand wireless network. When WDS is enabled, access point functions as a wireless bridge and is able to communicate with other access points via WDS links.
A WDS link is bidirectional and both side must support WDS. Access points know each other by MAC Address. In other words, each access point needs to include MAC address of its peer. Ensure all access points are configured with the same channel and own same security type settings.
TEW-676APBO
enabled.
WEP Key :
Enter
5 / 13 ASCII
or
10 / 26 HEX
format WEP key.
TKIP Key :
Enter
8
to
63 ASCII
or
64 HEX
format TKIP key.
AES Key :
Enter
8
to
63 ASCII
or
64 HEX
format AES key.
WDS MAC List
Enable :
Click
Enable
to create WDS link.
WDS Peer's MAC Address :
Enter the MAC address of WDS peer.
Description :
Description of WDS link.
Click
Save
button to save your changes. Click
Reboot
button to activate your changes
System Status
This section breaks down into subsections of
System Overview
,
WDS Link Status
,
Extra
Information
and
Event Log
.
System Overview
Detailed information on
System
,
Network
,
LAN Information
and
Wireless Information
can be reviewed via this page.
System :
Display the information of the system.
Security Type :
Option is “
Disable
”, “
WEP
”, “
TKIP
” or “
AES
” from drop-down list.
Needs the same type to build WDS links. Security type takes effect when WDS is
© Copyright 2012TRENDnet. All Rights Reserved.
System Name :
The name of the system.
Operating Mode :
The mode currently in service.
34
TRENDnet User’s Guide
Location :
The reminding note on the geographical location of the system.
Description :
The reminding note of the system.
Firmware Version :
The current firmware version installed.
Firmware Date :
The build time of the firmware installed.
Device Time :
The current time of the system.
System Up Time :
The time period that system has been in service since last reboot.
Network Information :
Display the information of the Network.
TEW-676APBO
Receive packets :
The total received packets of the LAN port.
Transmit bytes :
The total transmitted packets in bytes of the LAN port.
Transmit packets :
The total transmitted packets of the LAN port.
Wireless Information :
Display the detailed receive and transmit statistics of
Wireless interface.
Mode :
Supports Static or Dynamic modes on the LAN interface.
IP Address :
The management IP of system. By default, it’s 192.168.2.254.
IP Netmask :
The network mask. By default, it’s 255.255.255.0.
IP Gateway :
The gateway IP address and by default, it’s 192.168.2.1.
Primary DNS :
The primary DNS server in service.
Secondary DNS :
The secondary DNS server in service.
LAN Information :
Display total received and transmitted statistics on the LAN interface.
MAC Address :
The MAC address of the Wireless port.
Channel :
The current channel on the Wireless port.
Rate :
The current Bit Rate on the Wireless port.
Receive bytes :
The total received packets in bytes on the Wireless port.
Receive packets :
The total received packets of the Wireless port.
Transmit bytes :
The total transmitted packets in bytes of the Wireless port.
Transmit packets :
The total transmitted packets of the Wireless port.
WDS List
Peers MAC Address, antenna 0/1 received signal strength, phy mode and channel bandwidth for each WDS are available.
MAC Address :
The MAC address of the LAN port.
Receive bytes :
The total received packets in bytes on the LAN port.
© Copyright 2012TRENDnet. All Rights Reserved.
35
TRENDnet User’s Guide
MAC Address :
Display MAC address of WDS peer.
Signal Strength ANT0/ANT1 :
Indicate the signal strength of the respective WDS links.
Phy Mode :
Indicate the phy mode of the respective WDS linked.
BandWidth :
Indicate the channel bandwidth of the respective WDS linked.
MCS :
Indicate the MCS of the respective WDS linked.
SGI :
Indicate the SGI (Short Guard Interval) of the respective WDS linked. “1” indicate the Short Guard Interval, “0” indicate the Long Guard Interval.
Extra Information
Users could pull out information such as Route table, ARP table, MAC table, Bridge table or STP available in the drop-down list from system. The “Refresh” button is used to retrieve latest table information.
TEW-676APBO
ARP table Information :
Select “
ARP Table Information
” on the drop-down list to display ARP table.
ARP associates each IP address to a unique hardware address (MAC) of a device. It is important to have a unique IP address as final destination to switch packets to.
Bridge table information :
Select “
Bridge Table information
” on the drop-down list to display bridge table.
Bridge table will show Bridge ID and STP's Status on the each Ethernet bridge and its attached interfaces, the Bridge Port should be attached to some interfaces (e.g. eth2, ra0 and wds0~wds3).
Route table information :
Select “
Route table information
” on the drop-down list to display route table.
TEW-676APBO could be used as a L2 or L3 device. It doesn’t support dynamic routing protocols such as RIP or OSPF. Static routes to specific hosts, networks or default gateway are set up automatically according to the IP configuration of system's interfaces. When used as a L2 device, it could switch packets and, as L3 device, it’s capable of being a gateway to route packets inward and outward.
Bridge MAC information :
Select “
Bridge MACs Information
” on the drop-down list to display MAC table.
This table displays local MAC addresses associated with wired or wireless interfaces, but also remember non-local MAC addresses learned from wired or wireless interfaces.
Ageing timers will be reset when existing MAC addresses in table are learned again or added when new MAC addresses are seen from wired or wireless interfaces as well. When time runs out for a particular entry, it will be pruned from the table. In that situation, switching packet to that particular MAC address will be discontinued.
© Copyright 2012TRENDnet. All Rights Reserved.
36
TRENDnet User’s Guide
Bridge STP Information :
Select “
Bridge STP Information
” on the drop-down list to display a list of bridge STP information.
TEW-676APBO
Event Log
The Event log displays system events when system is up and running. Also, it becomes very useful as a troubleshooting tool when issues are experienced in system.
© Copyright 2012TRENDnet. All Rights Reserved.
Time :
The date and time when the event occurred.
Facility :
It helps users to identify source of events such “System” or “User”
Severity :
Severity level that a specific event is associated such as “info”, “error”,
“warning”, etc.
Message :
Description of the event.
Click
Refresh
button to renew the log, or click
Clear
button to clear all the record.
37
TRENDnet User’s Guide
CPE Mode Configuration
When CPE mode is chosen, the system can be configured as a Customer Premises
Equipment(CPE). This section provides detailed explanation for users to configure in the
CPE mode with help of illustrations. In the CPE mode, functions listed in the table below are also available from the Web-based GUI interface.
OPTION System Wireless Advance Utilities Status
Operating
Mode
General
Setup
DMZ
Profiles
Settings
System
Overview
WAN
LAN
Wireless
Profile
Site
Survey
IP Filter
Firmware
Upgrade
Station
Statistics
Extra Info
Functions
DDNS
Management
Virtual
Server
Parental
Control
Reboot QoS Plot
Event Log
Time Server QoS
UPNP
SNMP
CPE Mode Functions
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
External Network Connection
Network Requirement
It can be used as an Outdoor Customer Premises Equipment (CPE) to receive wireless signal over last mile application, helping WISPs deliver wireless broadband Internet service to residents and business customers. In the CPE mode, TEW-676APBO is a gateway enabled with NAT and DHCP Server functions. The wired clients connected to
TEW-676APBO are in
different
subnet from those connected to Main Base Station, and, in CPE mode, it
does not
accept wireless association from wireless clients.
Main
WIFI WAN
N
A
CPE mode network configuration
38
TRENDnet User’s Guide
Configure WAN Setup
There are three connection types for the WAN port :
Static IP
,
Dynamic IP
,
PPPoE
and
PPTP
.
Please click on
System -> WAN
and follow the below setting.
TEW-676APBO
Dynamic IP :
Please consult with WISP for correct wireless settings to associate with WISP AP before a dynamic IP, along with related IP settings including DNS can be available from DHCP server. If IP Address is not assigned, please double check with your wireless settings and ensure successful association. Also, you may go to “
WAN Information
” in the Overview page to click
Release
button to release IP address and click
Renew
button to renew IP address again.
Hostname :
The Hostname of the WAN port
Mode :
By default, it’s “
Static IP
”. Check “Static IP”, “Dynamic IP”, “PPPoE” or
“PPTP”to set up system WAN IP.
Static IP :
Users can manually setup the WAN IP address with a static IP provided by WISP.
IP Address :
The IP address of the WAN port; default IP address is
192.168.1.254
IP Netmask :
The Subnet mask of the WAN port; default Netmask is
255.255.255.0
IP Gateway :
The default gateway of the WAN port; default Gateway is
192.168.1.1
© Copyright 2012TRENDnet. All Rights Reserved.
PPPoE :
To create wireless PPPoE WAN connection to a PPPoE server in network.
User Name :
Enter User Name for PPPoE connection
Password :
Enter Password for PPPoE connection
Reconnect Mode :
•
•
Always on
– A connection to Internet is always maintained.
On Demand
– A connection to Internet is made as needed.
•
Manual
– Click the “
Connect
” button on “
WAN Information
” in the
Overview page to connect to the Internet.
Idle Time :
Time to last before disconnecting PPPoE session when it is idle. Enter preferred Idle Time in minutes. Default is “
0
”, indicates disabled. When Idle time is disabled, the “
Reconnect Mode
” will turn out
“
Always on
”
MTU :
By default, it’s
1492
bytes. MTU stands for Maximum Transmission
Unit. Consult with WISP for a correct MTU setting.
39
TRENDnet User’s Guide
PPTP :
The Point-to-Point Tunneling Protocol (PPTP) mode enables the implementation of secure multi-protocol Virtual Private Networks (VPNs) through public networks.
TEW-676APBO
DNS :
Check “No Default DNS Server” or “Specify DNS Server IP” radial button as desired to set up system DNS.
Primary :
The IP address of the primary DNS server.
Secondary :
The IP address of the secondary DNS server.
MAC Clone :
The MAC address is a 12-digit HEX code uniquely assigned to hardware as identification. Some ISPs require you to register a MAC address in order to access to Internet. If not, you could use default MAC or clone MAC from a PC.
(CPE+AP
Mode does not support MAC Clone function)
IP Address :
The IP address of the WAN port
IP Netmask :
The Subnet mask of the WAN port
PPTP Server IP Address :
The IP address of the PPTP server
User Name :
Enter User Name for PPTP connection
Password :
Enter Password for PPTP connection
Reconnect Mode :
•
•
•
Always on
– A connection to Internet is always maintained.
On Demand
– A connection to Internet is made as needed.
Manual
– Click the “
Connect
” button on “
WAN Information
” in the
Overview page to connect to the Internet.
Idle Time :
Time to last before disconnecting PPPoE session when it is idle. Enter preferred Idle Time in minutes. Default is “
0
”, indicates disabled. When Idle time is disabled, the “
Reconnect Mode
” will turn out
“
Always on
”
MTU :
By default, it’s
1460
bytes. MTU stands for Maximum Transmission
Unit. Consult with WISP for a correct MTU setting.
MPPE Encryption :
Microsoft Point-to-Point Encryption (MPPE) encrypts data in Point-to-Point Protocol(PPP)-based dial-up connections or Pointto-Point Tunneling Protocol (PPTP) virtual private network (VPN) connections.
128
-
bit
key (strong) and
40
-
bit
key (standard) MPPE encryption schemes are supported. MPPE provides data security for the
PPTP connection that is between the VPN client and the VPN server.
© Copyright 2012TRENDnet. All Rights Reserved.
Keep Default MAC Address :
Keep the default MAC address of WAN port on the system.
Clone MAC Address :
If you want to clone the MAC address of the PC, then click the
Clone MAC Address
button. The system will automatically detect your
PC's MAC address.
Manual MAC Address :
Enter the MAC address registered with your ISP.
Click
Save
button to save your changes. Click
Reboot
button to activate your changes
40
TRENDnet User’s Guide
Configure DDNS Setup
Dynamic DNS allows you to map domain name to dynamic IP address.
Please click on
System -> DDNS Setup
and follow the below setting.
Configure LAN Setup
TEW-676APBO
Here are the instructions for how to setup the local IP Address and Netmask.
Please click on
System -> LAN
and follow the below setting.
Enabled:
By default, it’s “
Disable
”
.
The mapping domain name won’t change when dynamic IP changes. The beauty of it is no need to remember the dynamic WAP IP while accessing to it.
Service Provider:
Select the preferred Service Provider from the drop-down list including
dyndns
,
dhs
,
ods
and
tzo
Hostname:
Host Name that you register to Dynamic-DNS service and export.
User Name & Password:
User Name and Password are used to login DDNS service.
Click
Save
button to save your changes. Click
Reboot
button to activate your changes.
LAN IP :
The administrator can manually setup the LAN IP address.
IP Address :
The IP address of the LAN port; default IP address is
192.168.2.254
IP Netmask :
The Subnet mask of the LAN port; default Netmask is
255.255.255.0
DHCP Setup :
Devices connected to the system can obtain an IP address automatically when this service is enabled.
© Copyright 2012TRENDnet. All Rights Reserved.
DHCP :
Check
Enable
button to activate this function or
Disable
to deactivate this service.
Start IP / End IP:
Specify the range of IP addresses to be used by the DHCP server when assigning IP address to clients. The default range IP address is
192.168.2.10 to 192.168.2.70, the netmask is 255.255.255.0
DNS1 IP :
Enter IP address of the first DNS server; this field is required.
DNS2 IP :
Enter IP address of the second DNS server; this is optional.
WINS IP :
Enter IP address of the Windows Internet Name Service (WINS)
41
TRENDnet User’s Guide
server; this is optional.
Domain :
Enter the domain name for this network.
Lease Time :
The IP addresses given out by the DHCP server will only be valid for the duration specified by the lease time. Increasing the time ensure client operation without interruptions, but could introduce potential conflicts.
Lowering the lease time will avoid potential address conflicts, but might cause more interruptions to the client while it will acquire new IP addresses from the
DHCP server. Default is
86400
seconds
Click
Save
button to save your changes. Click
Reboot
button to activate your changes
Access Point Association
Configure Wireless General Setting
The administrator can change the data transmission, channel and output power settings for the system. Please click on
Wireless -> General Setup
and follow the below setting.
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
Band Mode :
Select an appropriate wireless band; bands available are
801.11a
or
802.11a/n mixed mode
.
Tx Power :
You can adjust the output power of the system to get the appropriate coverage for your wireless network. Specify digit number between
1
to
100
(the unit is %) for your environment. If you are not sure of which setting to choose, then keep the default setting,
100
%.
When
Band Mode
select in
802.11a only mode
, the
HT(High Throughput) Physical
Mode and 11n Configuration
settings should be hidden immediately.
Operating Mode :
By default, it's Mixed Mode.
Mixed Mode :
In this mode packets are transmitted with a preamble
compatible with the legacy 802.11a/g, the rest of the packet has a new format.
In this mode the receiver shall be able to decode both the Mixed Mode packets and legacy packets.
Green Field :
In this mode high throughput packets are transmitted without a legacy compatible part.
Channel Bandwidth :
The "
Auto
” MHz option is usually best. The other option is available for special circumstances.
Guard Interval :
Using “
Auto
” option can increase throughput. However, it can also increase error rate in some installations, due to increased sensitivity to radiofrequency reflections. Select the option that works best for your installation.
MCS :
This parameter represents transmission rate. By default (Auto) the fastest possible transmission rate will be selected. You have the option of selecting the speed if necessary. (Refer to
Appendix C. MCS Data Rate
)
MPDU Enable :
Check
Enable
button to activate this function, and
Disable
to deactivate.
A-MPDU
: A-MPDU (Aggregated Mac Protocol Data Unit) allows the transmissions of multiple Ethernet frames to a single location as burst of up to 64kbytes This is performed on the hardware itself. Select “Manual” to set “MPDU Density”
MPDU Density :
Minimum separation of MPDUs in an A-MPDU.
0 1 2 3 4 5 6 7
No Restriction ¼ µs ½ µs 1 µs 2 µs 4 µs 8 µs 16 µs
A-MSDU :
Aggregated Mac Service Data Unit, A-MSDU. Select
Enable
to allows aggregation for multiple MSDUs in one MPDU. Default is disabled.
Click
Save
button to save your changes. Click
Reboot
button to activate your changes.
42
TRENDnet User’s Guide
Configure Wireless Advanced Setting
To achieve optimal wireless performance, it is necessary to tweak advance setting per requirements properly, not necessary higher the better or lower.
The administrator can change the RTS threshold and fragmentation threshold settings for the system. Please click on
Wireless -> Advanced Setup
and follow the below setting.
TEW-676APBO
Synchronization field.
The preamble is used to signal "here is a train of data coming" to the receiver. The short preamble provides 72-bit Synchronization field to improve WLAN transmission efficiency with less overhead.
Tx Burst :
By default, it’s “
Enable
”. To
Disable
is to deactivate Tx Burst.
With TX burst enabled, AP will send many packets in a burst, without collision detection and RTS/CTS for each packet. TX Burst have better throughput but cause interference with other APs in channel.
WMM :
By default, it's “
Disable
”.
Select Enable, the packets with QoS WMM will have higher priority.
Click
Save
button to save your changes. Click
Reboot
button to activate your changes.
Site Survey
Use this tool to scan and locate WISP Access Points and select one to associate with.
Please click on
Wireless -> Site Survey
. Below depicts an example for site survey.
Fragment Threshold :
The Fragment Threshold is in the range of
256
~
2346
byte.
The default is
2346
byte.
Each Wi-Fi packet can be divided into smaller packets, marked with a sequential fragment number and re-assemble in the receiving ends. The purpose is to make a short frame, instead of long frame, transmitting by radio in a heavy noisy environment. Because of sending smaller frames, corruptions are much less likely to occur. The pros is obvious, the cons is the overhead for transmission. So, in a clean environment, higher fragment threshold can be an option to increase throughput.
Fragmentation will be triggered by setting the Fragment Threshold, usually in Bytelength. Only when the frame size is over the Threshold, fragmentation will take place automatically.
RTS Threshold :
RTS Threshold is in the range of
1~2347
byte. The default is
2347
byte.
The main purpose of enabling RTS by changing RTS threshold is to reduce possible collisions due to hidden wireless clients. RTS in AP will be enabled automatically if the packet size is larger than the Threshold value. By default, RTS is disabled in a normal environment supports non-jumbo frames.
Short Preamble :
By default, it’s “
Auto
”. To
Disable
is to use Long 128-bit Preamble
© Copyright 2012TRENDnet. All Rights Reserved.
ESSID : Available
Extend Service Set ID of surrounding Access Points.
MAC Address :
MAC addresses of surrounding Access Points.
Signal :
Received signal strength of all found Access Points.
Channel :
Channel numbers used by all found Access Points.
Security :
Security type by all found Access Points.
Band :
Wireless band used by all found Access Points.
Network Type :
Network type used by all found Access Points.
Select :
Click “
Select
” to configure settings and associate with chosen AP.
43
TRENDnet User’s Guide
Create Wireless Profile
The administrator can configure station profiles via this page.
Please click on
Wireless -> Wireless Profile
and follow the below setting.
TEW-676APBO
MAC Address :
The MAC address of the Wireless Station is displayed here.
Profile Name :
Set different profiles for quick connection uses.
ESSID :
Assign Service Set ID for the wireless system.
Security Type :
Select an appropriate security type for association, the Security
Type can be selected in “
NONE
”, “
OPEN
”, “
SHARED
”, “
WPA-PSK
”, or “
WPA2-PSK
” from drop-down list; the type needs to be the same as that associated access point.
OPEN / SHARED :
OPEN and SHARED require the user to set a WEP key to exchange data.
Key Index :
key index is used to designate the WEP key during data transmission. 4 different WEP keys can be entered at the same time, but only one is chosen.
WEP Key # :
Enter
HEX
or
ASCII
format WEP key value; the system supports up to 4 sets of WEP keys.
Key Length Hex ASCII
64-bit
128-bit
10 characters
26 characters
5 characters
13 characters
WPA-PSK (or WPA2-PSK) :
WPA (or WPA2) Algorithms, allows the system accessing the network by using the WPA-PSK protected access.
Cipher Suite :
Select the desired cipher suite from the drop-down list; the options are
AES
and
TKIP
Pre-shared Key :
Enter the information for pre-shared key; the key can be either entered as a 256-bit secret in
64 HEX
digits format, or
8 to 63 ASCII
characters.
© Copyright 2012TRENDnet. All Rights Reserved.
44
TRENDnet User’s Guide
Profile List :
The user can manage the created profiles for home, work or public areas. Below depict an example for Profile List
TEW-676APBO
Click ”
Edit
” an exist profile on the Profile List. The field of System Configuration and Security Policy will display profile's content. Edit profile's content and then click “
Save
” button to save the profile.
Click “
Delete
” to remove profile.
Click and Select a profile from list, then click the “
Connect
” button to connecting to the wireless network with the profile setting. After clicking
“
Connect
” button, the system should be jump to
Station Statistic Page
, you can verify connecting status on
Station Statistic Page
.
Click
Save
button to save your changes. Click
Reboot
button to activate your changes
Access Control List
IP Filter Setup
Allows to create deny or allow rules to filter ingress or egress packets from specific source and/or to destination IP address on wired (LAN) or Wireless (WAN) ports. Filter rules could be used to filter unicast or multicast packets on different protocols as shown in the IP Filter Setup. Important to note that IP filter rules has precedence over Virtual server rules.
Please click on
Advance -> IP Filter Setup
and follow the below setting.
© Copyright 2012TRENDnet. All Rights Reserved.
Source Address/Mask :
Enter desired source IP address and netmask; i.e.
192.168.2.10/32.
Source Port :
Enter a port or a range of ports as
start:end
; i.e. port 20:80
Destination Address/Mask :
Enter desired destination IP address and netmask; i.e.
192.168.1.10/32
Destination Port :
Enter a port or a range of ports as
start:end
; i.e. port 20:80
In/Out :
Applies to Ingress or egress packets
Protocol :
Supports
TCP
,
UDP
or
ICMP
.
Listen :
Click
Yes
radial button to match TCP packets only with the SYN flag.
Active :
Deny
to drop and
Pass
to allow per filter rules
Interface :
The interface that a filter rule applies
Click “
Save
” button to add IP filter rule. Total of
20
rules maximum allowed in the IP
Filter List. All rules can be edited or removed from the List. Click
Reboot
button to activate your changes.
When you create rules in the IP Filter List, the prior rules maintain higher priority. To allow limited access from a subnet to a destination network manager needs to create allow rules first and followed by deny rules. So, if you just want one IP address to access
45
TRENDnet User’s Guide
the system via telnet from your subnet, not others, the Example 1 demonstrates it, not rules in the Example 2.
Example 1 :
Create a higher priority rule to allow IP address 192.168.2.2 Telnet access from LAN port first, and deny Telnet access from remaining IP addresses in the same subnet.
1
2
Source
Rule
IP/Mask Port
192.168.2.2/
32
192.168.2.0/
24
Destination
IP/Mask
192.168.2.254/
32
192.168.2.254/
32
Port
22
22
I/O
In
In
Protocol
TCP
TCP
L Act
n Pass
Side
n Deny LAN
Example 2 :
All Telnet access to the system from the IP addresses of subnet
192.168.2.x works with the rule 1 of Example 2. The rule 2 won’t make any difference.
LAN
Source Destination
Rule
IP/Mask Port IP/Mask Port
I/O Protocol L Action Side
192.168.2.254
/32
22 In TCP n Deny LAN
192.168.2.254
/32
22 In TCP n pass LAN
MAC Filter Setup
Allows to create MAC filter rules to allow or deny unicast or multicast packets from limited number of MAC addresses. Important to note that MAC filter rules have precedence over IP Filter rules.
Please click on
Advance -> MAC Filter Setup
and follow the below setting.
TEW-676APBO
MAC Filter Rule :
By default, it’s “
Disable
”. Options are
Disabled
,
Only Deny List
MAC
or
Only Allow List MAC
. Click
Save
button to save your change.
Two ways to set the MAC Filter List:
Only Allow List MAC
.
The wireless clients in the MAC Filter List will be
allowed
to access to Access Point;
All others will be denied.
Only Deny List MAC
.
The wireless clients in the MAC Filter List will be
denied
to access to Access Point;
All others will be allowed.
MAC Address :
Enter MAC address (e.g. aa:bb:cc:00:00:0a) and click “
Add
” button, then the MAC address should display in the MAC Filter List.
There are a maximum of
20
clients allowed in this MAC Filter List. The MAC addresses of the wireless clients can be added and removed to the list using the
Add
and
Delete
buttons
.
Click
Reboot
button to activate your changes
© Copyright 2012TRENDnet. All Rights Reserved.
46
TRENDnet User’s Guide
Parental Control Setup
Parental Control allows you to block or allow specific kinds of Internet usage and traffic, such as Internet access, designated services, and websites.
Main
WIFI WAN LAN
Please click on
Advance -> Parental Control
and follow the below setting.
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
Rules :
control can be managed by a rule. Use the settings on this screen to establish an access policy.
Comment :
Enter a descriptive name for this rule for identifying purposes.
MAC Address :
Enter MAC address in valid MAC address
format(xx:xx:xx:xx:xx:xx) and click “
Add
” button to add in the MAC group of each rule. Click “
Remove
” button can remove MAC address in the group of each rule. There are
10
MAC address maximum allowed in each rule.
Local / Destination IP :
Specify local(LAN)/ destination IP addresses range required for this rule. If you specify local IP addresses range from 192.168.1.1 to 192.168.2.254. The matches a range of local IP addresses include every single IP address from the first to the last, so the example above includes everything from 192.168.1.1 to 192.168.2.254.
Protocol :
Select
Any
or specify protocol(
TCP
,
UDP
,
ICMP
,
URL Blocking
and
47
TRENDnet User’s Guide
Application
) from drop-down list. When you select
ICMP
or
Layer 7
Application
, the Local(LAN)/ Destination Port cannot used.
If you want to block websites with specific URL address or using specific keywords, enter each URL or keyworks in the “
URL Blocking
” field and click
“
Add
” button to add in the URL Blocking list of each rule. Click “
Remove
” button can remove URL or keywords.
Local Port :
Specify local port(LAN port) range required for this rule
Destination Port :
Specify destination port range required for this rule
Active :
Check
Enable
button to activate this rule, and
Disable
to deactivate.
Click “
Add
” button to add control rule to List. There are
10
rules maximum allowed in this Control List. All rules can be removed or edited on the List. Click
Reboot
button to activate your changes.
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
QoS Setup
Quality of Service (QoS) refers to both a network's ability to deliver data with minimum delay, and the networking methods used to control the use of bandwidth. Without QoS, all traffic data is equally likely to be dropped when the network is congested. This can cause a reduction in network performance and make the network inadequate for timecritical application such as video-on-demand.
A classifier groups traffic into data flows according to specific criteria such as the source address, destination address, source port number, destination port number or incoming port number. For example, you can configure a classifier to select traffic from the same protocol port (such as FTP) to form a flow.
Shaping
WAN
NAT
LAN
Download: 1024K
Upload: 256K
Download: 512K
Upload: 256K
Download: 2048K
Upload: 1024K
48
TRENDnet User’s Guide
Please click on
Advance -> QoS
and follow the below setting.
Rules :
Use the rules to define the classifiers. After you define the rules, you can specify action to act upon the traffic that matches the rules
Comment :
Enter a descriptive name for this rule for identifying purposes.
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
MAC Address :
Enter MAC address in valid MAC address format(xx:xx:xx:xx:xx:xx) and click “
Add
” button to add in the MAC group of each rule. Click “
Remove
” button can remove MAC address in the group of each rule. There are
10
MAC address maximum allowed in each rule.
Local / Destination IP :
Specify local(LAN)/ destination IP addresses range required for this rule. If you specify local IP addresses range from 192.168.1.1 to 192.168.2.254. The matches a range of local IP addresses include every single IP address from the first to the last, so the example above includes everything from 192.168.1.1 to 192.168.2.254.
DSCP Class
: Differentiated services code point, DSCP. Select Any or specify classify traffic from drop-down list.
The Per-Hop Behavior (PHB) is indicated by encoding a 6-bit value—called the
Differentiated Services Code Point (DSCP)—into the 8-bit Differentiated
Services (DS) field of the IP packet header. Below depicts class for DSCP.
BE :
Default
PHB, which is typically best-effort traffic
EF :
Expedited Forwarding
PHB, dedicated to low-loss, low-latency traffic
AF :
Assured Forwarding
PHB, which gives assurance of delivery under conditions. The AF behavior group defines four separate AF classes.
Within each class, packets are given a drop precedence (high, medium or low). The combination of classes and drop precedence yields twelve separate DSCP encodings from
AF11
through
AF43
(see table)
DROP Precedence
Low Drop
Class 1
AF11
Class 2
AF21
Class 3
AF31
Class 4
AF41
Medium Drop
High Drop
AF12
AF13
AF22
AF23
AF32
AF33
AF42
AF43
Protocol :
Select
Any
or specify protocol(
TCP
,
UDP
,
ICMP
,
Application
) from
drop-down list. When you select
ICMP
or
Layer 7 Application
, the Local/
Destination Port cannot used.
Local Port :
Specify local port(LAN port) range required for this rule
Destination Port :
Specify destination port range required for this rule
Action :
After configuring rule, a policy rule ensures that a traffic flow gets the requested treatment in the network.
Remark DSCP :
Specify a new DSCP class, if you want to replace or remark the
DSCP
49
TRENDnet User’s Guide
Bandwidth :
Click “
Enable
” to activate function, and click “
Disable
” to deactivate function
Upload / Download :
Specify the bandwidth in kilobit per second (Kbps). Enter a number between
8
to
8192
, default upload is
128
Kbps, download is
1024
Kbps.
Click “
Add
” button to add QoS rule to List. There are
10
rules maximum allowed in this
QoS List. All rules can be removed or edited on the List. Click
Reboot
button to activate your changes.
When you create rules on the QoS List, the previous rules have higher priority. . Below depict the examples for explaining priority of QoS setup.
Example 1 :
On this setting, the FTP has
1024
Kbps upload and
8196
Kbps download on
192.168.2.10
. The remaining IP address and other remaining
protocol of IP address 192.168.2.10 only can use total bandwidth
512
Kbps bandwidth. Because rule 1's priority is higher than rule 2
Example 2 :
On this setting, the FTP has
512
Kbps upload and
512
Kbps download on
192.168.2.10
Because rule 1's priority is higher than rule 2
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
Resource Sharing
DMZ
DMZ is commonly work with the NAT functionality as an alternative of Virtual
Server(Port Forwarding
)
while wanting all ports of DMZ host visible to Internet users.
Virtual Server rules have precedence over the DMZ rule. In order to use a range of ports available to access to different internal hosts Virtual Server rules are needed.
Main
WIFI WAN LAN
Please click on
Advance -> DMZ
and follow the below setting.
DMZ
DMZ :
By default, it’s
“
Disable
”.
Check
Enable
radial button to enable DMZ.
IP Address :
Enter IP address of DMZ host and only one DMZ host is supported.
Click
Save
button to save your changes. Click
Reboot
button to activate your changes.
50
TRENDnet User’s Guide
Virtual Server (Port Forwarding)
“Virtual Server” can also referred to as “Port Forward” as well and used interchangeably.
Resources in the network can be exposed to the Internet users in a controlled manner including on-line gaming, video conferencing or others via Virtual Server setup. Don’t repeat ports’ usage to avoid confusion.
Suppose you want to assign ports 21-25 to one FTP, Telnet and SMTP server (A in the example), and port 80 to another (B in the example). You assign the LAN IP addresses and the ISP assigns the WAN IP address. The NAT network appears as a single host on the Internet.
WIFI WAN
A
B
Main
LAN
Please click on
Advance -> Virtual Server
and follow the below setting.
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
Virtual Server :
By Default, It’s “
Disable
”
.
Check
Enable
radial button to enable
Virtual Server.
Description :
Enter appropriate message for resource sharing via Virtual Server.
Private IP :
Enter corresponding IP address of internal resource to share.
Protocol Type :
Select appropriate sessions, TCP or UDP, from shared host via multiple private ports.
Private Port :
A port or a range of ports may be specified as
start:end
; i.e. port
20:80
Public Port :
A port or a range of ports may be specified as
start:end
; i.e. port 20:80
.
Click “
Add
” button to add Virtual Server rule to List. Total of maximum
20
rules are allowed in this List. All rules can be edited or removed from the List. Click
Reboot
button to activate your changes.
While creating multiple Virtual Server rules, the prior rules have higher priority. The
Virtual server rules have precedence over the DMZ one while both rules exist. Example 1 and 2 demonstrate proper usage of DMZ and Virtual Server rules.
Example 1 :
All connections should be redirected to
192.168.2.12
while DMZ is enabled. Since Virtual Server rules have precedence over the DMZ rule all connections to TCP port 22 will be directed to TCP port 22 of 192.168.2.10 and remaining connections to port TCP
20~80
will be redirected to port TCP
20~80
of
192.168.2.11
51
TRENDnet User’s Guide
DMZ Enabled : 192.168.2.12
Rule Protocol Private IP
1
2
TCP
TCP
192.168.2.10
192.168.2.11
Private Port
22
20:80
Public Port
22
20:80
Example 2 :
All connections should be redirected to
192.168.2.12
while DMZ is enabled. Since Virtual Server rules have precedence over the DMZ rule all other connections to TCP port
20~80
will be redirected to port
20~80
of
192.168.2.11
.
The rule 2 won’t take effect.
DMZ Enabled : 192.168.2.12
Rule Protocol Private IP
1
2
TCP
TCP
192.168.2.11
192.168.2.10
Private Port
20:80
22
Public Port
20:80
22
TEW-676APBO
© Copyright 2012TRENDnet. All Rights Reserved.
52
TRENDnet User’s Guide
System Status
This section breaks down into subsections of
System Overview
,
Station Statistics
,
Extra
Information
and
Event Log
.
Overview
Detailed information on
System
,
WAN Information
,
LAN Information
and
DHCP Server
Status
can be reviewed via this page.
System :
Display the information of the system.
TEW-676APBO
WAN Information :
Display the information of the WAN interface.
System Name :
The name of the system.
Operating Mode :
The mode currently in service.
Location :
The reminding note on the geographical location of the system.
Description :
The reminding note of the system.
Firmware Version :
The current firmware version installed.
Firmware Date :
The build time of the firmware installed.
Device Time :
The current time of the system.
System Up Time :
The time period that system has been in service since last reboot.
© Copyright 2012TRENDnet. All Rights Reserved.
The WAN port specified
Dynamic IP
, the Release and Renew button will be showup, click
Release
button to release IP address of WAN port,
Renew
button to renew
IP address through DHCP server.
The WAN port specified
PPPoE
or
PPTP
, and the
Connect
and
DisConnect
button will be show up. Click “
Connect
” button to assigned IP address from PPPoE or PPTP server, “
DisConnect
” button to release IP address of WAN port.
Mode :
Supports Static, Dynamic, PPPoE and PPTP modes.
Reconnect Mode :
The current reconnect mode of the PPPoE or PPTP.
MAC Address :
The MAC address of the WAN port.
IP Address :
The IP address of the WAN port.
IP Netmask :
The IP netmask of the WAN port.
IP Gateway :
The gateway IP address of the WAN port.
Primary DNS :
The primary DNS server in service.
Secondary DNS :
The secondary DNS server in service.
Receive bytes :
The total received packets in bytes on the WAN port.
Receive packets :
The total received packets of the WAN port.
Transmit bytes :
The total transmitted packets in bytes of the WAN port.
Transmit packets :
The total transmitted packets of the WAN port.
53
TRENDnet User’s Guide
LAN Information :
Display total received and transmitted statistics on the LAN interface.
TEW-676APBO
IP Address :
IP addresses to LAN devices by DHCP server.
MAC Address :
MAC addresses of LAN devices.
Expired In :
Shows how long the leased IP address will expire.
Station Statistics
Link information, Transmit and Receive Statistics for the connection with AP, Below depicts an example for Station Statistics.
MAC Address :
The MAC address of the LAN port.
IP Address :
The IP address of the LAN port.
IP Netmask :
The IP netmask of the LAN port.
Receive bytes :
The total received packets in bytes on the LAN port.
Receive packets :
The total received packets of the LAN port.
Transmit bytes :
The total transmitted packets in bytes of the LAN port.
Transmit packets :
The total transmitted packets of the LAN port.
DHCP Server Status :
Users could retrieve DHCP server and DHCP clients’ IP/MAC address via this field.
© Copyright 2012TRENDnet. All Rights Reserved.
54
TRENDnet User’s Guide
Link Status :
Status :
Shows the current link status. It should be “
Connected
” or
“
Disconnected
”.
ESSID :
Shows the current SSID, which must be the same on the wireless client and AP in order for communication to be established.
BSSID :
Shows the associated BSSID, which can be used to identify the wireless
access point.
Extra Info :
Shows the current link status of extra information. It should be
“
Link is Up
” or “
Link is Down
”,
Channel :
Shows current channel and central channel, its corresponding frequency.
Link Speed(Mbps) :
The data transfer speed adopted by this network.
(measured in Mbits per second)
Link Quality :
Shows the link quality of the system with an access point.
Signal Strength ANT0/ANT1 :
Shows the wireless signal strength of the connection between system and an access point.
HT Status :
Channel BandWidth :
Shows the current channel bandwidth used for
communication. It should be “
20
” or “
40
”
Guard Interval :
Shows the current GI used for communication. It should be
“
short
” or “
long
”.
MCS :
Shows the current GI used for communication. It should be between
0
to
15
or
32
.
Transmit Statistics
Frames Transmitted Successfully:
The number of successfully transmitted
frames.
Frames Transmitted Successfully Without Retry:
The number of successfully transmitted frames without any retry.
Frames Transmitted Successfully After Retry(s):
The number of successfully
transmitted frames with one or more retries.
Frames Fail To Receive ACK After All Retries:
The number of unsuccessfully transmitted frame with many retries.
RTS Frames Successfully Receive CTS:
The number of successful received CTS
(Clear To Send) response after this TEW-676APBO sends out the RTS (Request
To Send) message.
RTS Frames Fail To Receive CTS:
The number of unsuccessful received CTS
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
response after this TEW-676APBO sends out the RTS message.
Receive Statistics
Frames Received Successfully:
The number of successful received frames.
Frames Received With CRC Error:
The number of received frames with CRC
(Cyclical Redundancy Checking) error.
Frames Dropped Due To Out-of-Resource:
The number of dropped frames.
Duplicate Frames Received:
The number of duplicate frames.
Extra Info
Users could pull out information such as Route table, ARP table, MAC table, Bridge table or STP available in the drop-down list from system. The “Refresh” button is used to retrieve latest table information.
55
TRENDnet User’s Guide
Netstat Information :
Select “
NetStatus Information
” on the drop-down list, the connection track list should
NetStatus will show all connection track on the system, the information include
Protocol
,
Live Time
,
Status
,
Source/Destination IP address
and
Port
.
Route table information :
Select “
Route table information
” on the drop-down list to display route table.
TEW-676APBO could be used as a L2 or L3 device. It doesn’t support dynamic routing protocols such as RIP or OSPF. Static routes to specific hosts, networks or default gateway are set up automatically according to the IP configuration of system's interfaces. When used as a L2 device, it could switch packets and, as L3 device, it’s capable of being a gateway to route packets inward and outward.
TEW-676APBO
but also remember non-local MAC addresses learned from wired or wireless interfaces.
Ageing timers will be reset when existing MAC addresses in table are learned again or added when new MAC addresses are seen from wired or wireless interfaces as well. When time runs out for a particular entry, it will be pruned from the table. In that situation, switching packet to that particular MAC address will be discontinued.
Bridge STP Information :
Select “
Bridge STP Information
” on the drop-down list to display a list of bridge STP information.
ARP table Information :
Select “
ARP Table Information
” on the drop-down list to display ARP table.
ARP associates each IP address to a unique hardware address (MAC) of a device. It is important to have a unique IP address as final destination to switch packets to.
Bridge table information :
Select “
Bridge Table information
” on the drop-down list to display bridge table.
Bridge table will show Bridge ID and STP's Status on the each Ethernet bridge and its attached interfaces, the Bridge Port should be attached to some interfaces.
Bridge MAC information :
Select “
Bridge MACs Information
” on the drop-down list to display MAC table.
This table displays local MAC addresses associated with wired or wireless interfaces,
© Copyright 2012TRENDnet. All Rights Reserved.
56
TRENDnet User’s Guide
QoS Plot
The QoS Plot show graphs which continuously represents the current data traffic on each QoS rule. The chart scale and throughput dimension (bps, Kbps, Mbps) changes dynamically according to the mean throughput value. The statistics is updated automatically every
5
seconds. The throughput statistics of QoS can be updated manually using the
Refresh
button.
Event Log
The Event log displays system events when system is up and running. Also, it becomes very useful as a troubleshooting tool when issues are experienced in system.
TEW-676APBO
Time :
The date and time when the event occurred.
Facility :
It helps users to identify source of events such “System” or “User”
Severity :
Severity level that a specific event is associated such as “info”, “error”,
“warning”, etc.
Message :
Description of the event.
Click
Refresh
button to renew the log, or click
Clear
button to clear all the record.
© Copyright 2012TRENDnet. All Rights Reserved.
57
TRENDnet User’s Guide
CPE + AP Mode Configuration
When CPE+AP mode is chosen, the system can be configured as a Customer Premises
Equipment(CPE). This section provides detailed explanation for users to configure in the
CPE+AP mode with help of illustrations. In the CPE+AP mode, functions listed in the table below are also available from the Web-based GUI interface.
OPTION System Wireless Advance
Operating Mode General Setup DMZ
Utilities
Profiles
Settings
Status
System
Overview
Functions
WAN
LAN
DDNS
Advanced
Setup
Repeater AP
Setup
Wireless
Profile
IP Filter
MAC Filter
Virtual Server
Firmware
Upgrade
Network
Utility
Reboot
Station
Statistics
Extra Info
QoS Plot
Management
Time Server
UPNP
SNMP
Site Survey Parental Control
QoS
CPE+AP Mode Functions
Event Log
TEW-676APBO
External Network Connection
Network Requirement
It can be used as an Outdoor Customer Premises Equipment (CPE) to receive and repeat wireless signal over last mile application, helping WISPs deliver wireless broadband
Internet service to residents and business customers. In the CPE+AP mode, TEW-
676APBO is a gateway enabled with NAT and DHCP Server functions. The wired and wireless clients connected to TEW-676APBO are in
different
subnet from those connected to Main Base Station, and, in CPE+AP mode, it
accepts
wireless connections from wireless client devices.
SSID: Repeater_Main_AP
Main
CPE+AP mode network configuration
© Copyright 2012TRENDnet. All Rights Reserved.
58
TRENDnet User’s Guide
Configure WAN Setup
There are three connection types for the WAN port :
Static IP
,
Dynamic IP
,
PPPoE
and
PPTP
,
Please click on
System -> WAN
and follow the below setting.
TEW-676APBO
release IP address and click
Renew
button to renew IP address again.
Hostname :
The Hostname of the WAN port
Mode :
By default, it’s “
Static IP
”. Check “Static IP”, “Dynamic IP”, “PPPoE” or
“PPTP”to set up system WAN IP.
Static IP :
Users can manually setup the WAN IP address with a static IP
provided by WISP.
IP Address :
The IP address of the WAN port; default IP address is
192.168.1.254
IP Netmask :
The Subnet mask of the WAN port; default Netmask is
255.255.255.0
IP Gateway :
The default gateway of the WAN port; default Gateway is
192.168.1.1
Dynamic IP :
Please consult with WISP for correct wireless settings to associate with WISP AP before a dynamic IP, along with related IP settings including DNS can be available from DHCP server. If IP Address is not assigned, please double check with your wireless settings and ensure successful association. Also, you may go to “
WAN Information
” in the Overview page to click
Release
button to
© Copyright 2012TRENDnet. All Rights Reserved.
PPPoE :
To create wireless PPPoE WAN connection to a PPPoE server in network.
User Name :
Enter User Name for PPPoE connection
Password :
Enter Password for PPPoE connection
Reconnect Mode :
•
•
•
Always on
– A connection to Internet is always maintained.
On Demand
– A connection to Internet is made as needed.
Manual
– Click the “
Connect
” button on “
WAN Information
” in the
Overview page to connect to the Internet.
Idle Time :
Time to last before disconnecting PPPoE session when it is idle. Enter preferred Idle Time in minutes. Default is “
0
”, indicates disabled. When Idle time is disabled, the “
Reconnect Mode
” will turn out
“
Always on
”
MTU :
By default, it’s
1492
bytes. MTU stands for Maximum Transmission
Unit. Consult with WISP for a correct MTU setting.
PPTP :
The Point-to-Point Tunneling Protocol (PPTP) mode enables the implementation of secure multi-protocol Virtual Private Networks (VPNs) through public networks.
59
TRENDnet User’s Guide
TEW-676APBO
Secondary :
The IP address of the secondary DNS server.
Click
Save
button to save your changes. Click
Reboot
button to activate your changes
Configure DDNS Setup
Dynamic DNS allows you to map domain name to dynamic IP address.
Please click on
System -> DDNS Setup
and follow the below setting.
IP Address :
The IP address of the WAN port
IP Netmask :
The Subnet mask of the WAN port
PPTP Server IP Address :
The IP address of the PPTP server
User Name :
Enter User Name for PPTP connection
Password :
Enter Password for PPTP connection
Reconnect Mode :
•
•
•
Always on
– A connection to Internet is always maintained.
On Demand
– A connection to Internet is made as needed.
Manual
– Click the “
Connect
” button on “
WAN Information
” in the
Overview page to connect to the Internet.
Idle Time :
Time to last before disconnecting PPPoE session when it is idle. Enter preferred Idle Time in minutes. Default is “
0
”, indicates disabled. When Idle time is disabled, the “
Reconnect Mode
” will turn out
“
Always on
”
MTU :
By default, it’s
1460
bytes. MTU stands for Maximum Transmission
Unit. Consult with WISP for a correct MTU setting.
MPPE Encryption :
Microsoft Point-to-Point Encryption (MPPE) encrypts data in Point-to-Point Protocol(PPP)-based dial-up connections or Pointto-Point Tunneling Protocol (PPTP) virtual private network (VPN) connections.
128
-
bit
key (strong) and
40
-
bit
key (standard) MPPE encryption schemes are supported. MPPE provides data security for the
PPTP connection that is between the VPN client and the VPN server.
DNS :
Check “No Default DNS Server” or “Specify DNS Server IP” radial button as desired to set up system DNS.
Primary :
The IP address of the primary DNS server.
© Copyright 2012TRENDnet. All Rights Reserved.
Enabled:
By default, it’s “
Disable
”
.
The mapping domain name won’t change when dynamic IP changes. The beauty of it is no need to remember the dynamic WAP IP while accessing to it.
Service Provider:
Select the preferred Service Provider from the drop-down list including
dyndns
,
dhs
,
ods
and
tzo
Hostname:
Host Name that you register to Dynamic-DNS service and export.
User Name & Password:
User Name and Password are used to login DDNS service.
Click
Save
button to save your changes. Click
Reboot
button to activate your changes
60
TRENDnet User’s Guide
Configure LAN Setup
Here are the instructions for how to setup the local IP Address and Netmask.
Please click on
System -> LAN
and follow the below setting.
TEW-676APBO
LAN IP :
The administrator can manually setup the LAN IP address.
IP Address :
The IP address of the LAN port; default IP address is
192.168.2.254
IP Netmask :
The Subnet mask of the LAN port; default Netmask is
255.255.255.0
DHCP Setup :
Devices connected to the system can obtain an IP address automatically when this service is enabled.
© Copyright 2012TRENDnet. All Rights Reserved.
DHCP :
Check
Enable
button to activate this function or
Disable
to deactivate this service.
Start IP / End IP:
Specify the range of IP addresses to be used by the DHCP server when assigning IP address to clients. The default range IP address is
192.168.2.10 to 192.168.2.70, the netmask is 255.255.255.0
DNS1 IP :
Enter IP address of the first DNS server; this field is required.
DNS2 IP :
Enter IP address of the second DNS server; this is optional.
WINS IP :
Enter IP address of the Windows Internet Name Service (WINS) server; this is optional.
Domain :
Enter the domain name for this network.
Lease Time :
The IP addresses given out by the DHCP server will only be valid for the duration specified by the lease time. Increasing the time ensure client operation without interruptions, but could introduce potential conflicts.
Lowering the lease time will avoid potential address conflicts, but might cause more interruptions to the client while it will acquire new IP addresses from the
DHCP server. Default is
86400
seconds
Click
Save
button to save your changes. Click
Reboot
button to activate your changes
61
TRENDnet User’s Guide
Access Point Association
Configure Wireless General Setting
The administrator can change the data transmission, channel and output power settings for the system. Please click on
Wireless -> General Setup
and follow the below setting.
Band Mode :
Select an appropriate wireless band; bands available are
801.11a
or
802.11a/n mixed
mode.
Transmit Rate Control :
Select the desired rate from the drop-down list; the options are auto or ranging from
6
to
54
Mbps for
802.11a
Tx Power :
You can adjust the output power of the system to get the appropriate coverage for your wireless network. Specify digit number between
1
to
100
(the unit is %) for your environment. If you are not sure of which setting to choose, then keep the default setting,
100
%.
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
When
Band Mode
select in
802.11a only mode
, the
HT(High Throughput) Physical
Mode and 11n Configuration
settings should be hidden immediately.
Operating Mode :
By default, it's Mixed Mode.
Mixed Mode :
In this mode packets are transmitted with a preamble
compatible with the legacy 802.11a/g, the rest of the packet has a new format.
In this mode the receiver shall be able to decode both the Mixed Mode packets and legacy packets.
Green Field :
In this mode high throughput packets are transmitted without a
legacy compatible part.
Channel Bandwidth :
The "
Auto
” MHz option is usually best. The other option is available for special circumstances.
Guard Interval :
Using “
Auto
” option can increase throughput. However, it can also increase error rate in some installations, due to increased sensitivity to radiofrequency reflections. Select the option that works best for your installation.
MCS :
This parameter represents transmission rate. By default (Auto) the fastest possible transmission rate will be selected. You have the option of selecting the speed if necessary. (Refer to
Appendix C. MCS Data Rate
)
MPDU Enable :
Check
Enable
button to activate this function, and
Disable
to deactivate.
A-MPDU
: A-MPDU (Aggregated Mac Protocol Data Unit) allows the transmissions of multiple Ethernet frames to a single location as burst of up to 64kbytes This is performed on the hardware itself. Select “Manual” to set “MPDU Density”
MPDU Density :
Minimum separation of MPDUs in an A-MPDU.
0 1 2 3 4 5 6 7
No Restriction ¼ µs ½ µs 1 µs 2 µs 4 µs 8 µs 16 µs
A-MSDU :
Aggregated Mac Service Data Unit, A-MSDU. Select
Enable
to allows aggregation for multiple MSDUs in one MPDU. Default is disabled.
Click
Save
button to save your changes. Click
Reboot
button to activate your changes.
62
TRENDnet User’s Guide
Wireless Advanced Setup
To achieve optimal wireless performance, it is necessary to tweak advance setting per requirements properly, not necessary higher the better or lower.
The administrator can change the RTS threshold and fragmentation threshold settings for the system. Please click on
Wireless -> Advanced Setup
and follow the below setting.
Short Slot :
By default, it’s “
Enable
” for educing the slot time from the standard
20
microseconds
to the
9
microsecond
short slot time
Slot time is the amount of time a device waits after a collision before retransmitting a packet. Reducing the slot time decreases the overall back-off, which increases throughput. Back-off, which is a multiple of the slot time, is the random length of time a station waits before sending a packet on the LAN. For a sender and receiver own right of the channel the shorter slot time help manage shorter wait time to retransmit from collision because of hidden wireless clients or other causes. When collision sources can be removed sooner and other senders attempting to send are listening the channel(CSMA/CA) the owner of the channel should continue ownership and finish their transmission and release the channel. Then, following ownership of the channel will be sooner for the new pair due to shorter slot time.
However, when long duration of existing collision sources and shorter slot time exist the owners might experience subsequent collisions. When adjustment to longer slot time can’t improve performance then RTS/CTS could supplement and help improve performance.
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
Extra Slot Time :
Slot time is in the range of
1~255
and set in unit of
microsecond
.
The default value is
9
microsecond.
ACK Timeout :
ACK timeout is in the range of
1~255
and set in unit of
microsecond
.
The default value is
32
microsecond.
All data transmission in 802.11b/g request an “Acknowledgement” (ACK) send by receiving radio. The transmitter will resend the original packet if correspondent ACK failed to arrive within specific time interval, also refer to as “ACK Timeout”.
ACK Timeout is adjustable due to the fact that distance between two radio links may vary in different deployment. ACK Timeout makes significant influence in performance of long distance radio link. If ACK Timeout is set too short, transmitter will start to “Resend” packet before ACK is received, and throughputs become low due to excessively high re-transmission.
ACK Timeout is best determined by distance between the radios, data rate of average environment. The Timeout value is calculated based on round-trip time of packet with a little tolerance, So, if experiencing re-transmissions or poor performance the ACK Timeout could be made longer to accommodate.
Beacon Interval :
Beacon Interval is in the range of
20
~
1024
and set in unit of
millisecond
. The default value is
100
msec.
Access Point (AP) in IEEE 802.11 will send out a special approximated 50-byte frame, called “Beacon”. Beacon is broadcast to all the stations, provides the basic information of AP such as SSID, channel, encryption keys, signal strength, time stamp, support data rate.
All the radio stations received beacon recognizes the existence of such AP, and may proceed next actions if the information from AP matches the requirement. Beacon is sent on a periodic basis, the time interval can be adjusted.
By increasing the beacon interval, you can reduce the number of beacons and associated overhead, but that will likely delay the association and roaming process because stations scanning for available access points may miss the beacons. You can decrease the beacon interval, which increases the rate of beacons. This will make the association and roaming process very responsive; however, the network will incur additional overhead and throughput will go down.
DTIM Interval :
The DTIM interval is in the range of
1
~
255
. The default is
1
.
DTIM is defined as
Delivery Traffic Indication Message
. It is used to notify the wireless stations, which support power saving mode, when to wake up to receive multicast frame. DTIM is necessary and critical in wireless environment as a mechanism to fulfill power-saving synchronization.
63
TRENDnet User’s Guide
A DTIM interval is a count of the number of beacon frames that must occur before the access point sends the buffered multicast frames. For instance, if DTIM Interval is set to 3, then the Wi-Fi clients will expect to receive a multicast frame after receiving three Beacon frame. The higher DTIM interval will help power saving and possibly decrease wireless throughput in multicast applications.
Fragment Threshold :
The Fragment Threshold is in the range of
256
~
2346
byte.
The default is
2346
byte.
Each Wi-Fi packet can be divided into smaller packets, marked with a sequential fragment number and re-assemble in the receiving ends. The purpose is to make a short frame, instead of long frame, transmitting by radio in a heavy noisy environment. Because of sending smaller frames, corruptions are much less likely to occur. The pros is obvious, the cons is the overhead for transmission. So, in a clean environment, higher fragment threshold can be an option to increase throughput.
Fragmentation will be triggered by setting the Fragment Threshold, usually in Bytelength. Only when the frame size is over the Threshold, fragmentation will take place automatically.
RTS Threshold :
TRTS Threshold is in the range of
1~2347
byte. The default is
2347
byte.
The main purpose of enabling RTS by changing RTS threshold is to reduce possible
Queue
Data
Transmitted
Clients to AP
Priority Description
AC_BK Background. Low
High throughput. Bulk data that requires maximum throughput and is not time-sensitive is sent to this queue (FTP data, for example).
AC_BE
AC_VI
Best Effort
Video
Medium
High
Medium throughput and delay. Most traditional
IP data is sent to this queue
Minimum delay. Time-sensitive video data is automatically sent to this queue
AC_VO Voice High
Time-sensitive data like VoIP and streaming media are automatically sent to this queue collisions due to hidden wireless clients. RTS in AP will be enabled automatically if the packet size is larger than the Threshold value. By default, RTS is disabled in a normal environment supports non-jumbo frames.
Short Preamble :
By default, it’s “
Enable
”. To
Disable
is to use Long 128-bit
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
Preamble Synchronization field.
The preamble is used to signal "here is a train of data coming" to the receiver. The short preamble provides 72-bit Synchronization field to improve WLAN transmission efficiency with less overhead.
Tx Burst :
By default, it’s “
Enable
”. To
Disable
is to deactivate Tx Burst.
With TX burst enabled, AP will send many packets in a burst, without collision detection and RTS/CTS for each packet. TX Burst have better throughput but cause interference with other APs in channel.
Pkt_Aggregate :
By default, it's “
Enable
”
Increase efficiency by aggregating multiple packets of application data into a single transmission frame. In this way, 802.11n networks can send multiple data packets with the fixed overhead cost of just a single frame.
WMM :
By default, it's “
Disable
”. To
Enable
is to use WMM and the WMM parameters should appears.
WMM Parameters of Access Point :
This affects traffic flowing from the access point to the client station
Configuring QoS options consists of setting parameters on existing queues for different types of wireless traffic. You can configure different minimum and maximum wait times for the transmission of packets in each queue based on
64
TRENDnet User’s Guide
the requirements of the media being sent. Queues automatically provide minimum transmission delay for Voice, Video, multimedia, and mission critical applications, and rely on best-effort parameters for traditional IP data.
As an Example, time-sensitive Voice & Video, and multimedia are given effectively higher priority for transmission (lower wait times for channel access), while other applications and traditional IP data which are less timesensitive but often more data-intensive are expected to tolerate longer wait times.
Aifsn
: The Arbitration Inter-Frame Spacing Number specifies a wait time
(in milliseconds) for data frames
CWmin
: Minimum Contention Window. This parameter is input to the algorithm that determines the initial random backoff wait time
("window") for retry of a transmission. The value specified here in the
Minimum Contention Window is the upper limit (in milliseconds) of a range from which the initial random backoff wait time is determined.
CWmax
: Maximum Contention Window. The value specified here in the
Maximum Contention Window is the upper limit (in milliseconds) for the doubling of the random backoff value. This doubling continues until either the data frame is sent or the Maximum Contention Window size is reached. Once the Maximum Contention Window size is reached, retries will continue until a maximum number of retries allowed is reached. Valid values for the "cwmax" are 1, 3, 7, 15, 31, 63, 127, 255, 511, or 1024. The value for "cwmax" must be higher than the value for "cwmin".
Txop
: Transmission Opportunity is an interval of time when a WME AP has the right to initiate transmissions onto the wireless medium (WM).
This value specifies (in milliseconds) the Transmission Opportunity (TXOP) for AP; that is, the interval of time when the WMM AP has the right to initiate transmissions on the wireless network.
ACM :
Admission Control Mandatory, ACM only takes effect on AC_VI and
AC_VO. When you do not click Checkbox, it means that the ACM is controlled by the connecting AP. If you click Checkbox, it means that the
Client is in charge.
AckPolicy :
Acknowledgment Policy, WMM defines two ACK policies:
Normal ACK
and
No ACK
. Click “
Checkbox
” indicates “
No ACK
”
When the no acknowledgment (No ACK) policy is used, the recipient does not acknowledge received packets during wireless packet exchange. This policy is suitable in the environment where communication quality is fine and interference is weak. While the No ACK policy helps improve
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
transmission efficiency, it can cause increased packet loss when communication quality deteriorates. This is because when this policy is used, a sender does not retransmit packets that have not been received by the recipient.
When the Normal ACK policy is used, the recipient acknowledges each received unicast packet.
WMM Parameters of Station :
This affects traffic flowing from the client station to the access point.
Aifsn
: The Arbitration Inter-Frame Spacing Number specifies a wait time
(in milliseconds) for data frames
CWmin
: Minimum Contention Window. This parameter is input to the algorithm that determines the initial random backoff wait time
("window") for retry of a transmission. The value specified here in the
Minimum Contention Window is the upper limit (in milliseconds) of a range from which the initial random backoff wait time is determined.
CWmax
: Maximum Contention Window. The value specified here in the
Maximum Contention Window is the upper limit (in milliseconds) for the doubling of the random backoff value. This doubling continues until either the data frame is sent or the Maximum Contention Window size is reached. Once the Maximum Contention Window size is reached, retries will continue until a maximum number of retries allowed is reached. Valid values for the "cwmax" are 1, 3, 7, 15, 31, 63, 127, 255, 511, or 1024. The value for "cwmax" must be higher than the value for "cwmin".
Txop
: Transmission Opportunity is an interval of time when a WME AP
has the right to initiate transmissions onto the wireless medium (WM).
This value specifies (in milliseconds) the Transmission Opportunity (Txop) for AP; that is, the interval of time when the WMM AP has the right to initiate transmissions on the wireless network.
ACM :
Admission Control Mandatory, ACM only takes effect on AC_VI and
AC_VO. When you do not click Checkbox, it means that the ACM is controlled by the connecting AP. If you click Checkbox, it means that the
Client is in charge.
Change these settings as described here and click
Save
button to save your changes.
Click
Reboot
button to activate your changes. The items in this page are for AP's RF
65
TRENDnet User’s Guide
advanced settings and will be applied to
Repeater AP
.
Site Survey
Use this tool to scan and locate WISP Access Points and select one to associate with.
Please click on
Wireless -> Site Survey
. Below depicts an example for site survey.
TEW-676APBO
ESSID : Available
Extend Service Set ID of surrounding Access Points.
MAC Address :
MAC addresses of surrounding Access Points.
Signal :
Received signal strength of all found Access Points.
Channel :
Channel numbers used by all found Access Points.
Security :
Security type by all found Access Points.
Band :
Wireless band used by all found Access Points.
Network Type :
Network type used by all found Access Points.
Select :
Click “
Select
” to configure settings and associate with chosen AP.
Create Wireless Profile
The administrator can configure station profiles via this page.
Please click on
Wireless -> Wireless Profile
and follow the below setting.
MAC Address :
The MAC address of the Wireless Station is displayed here.
Profile Name :
Set different profiles for quick connection uses.
ESSID :
Assign Service Set ID for the wireless system.
Lock to AP MAC :
This allows the station to always maintain connection to a particular AP with a specific MAC address. This is useful as sometimes there can be few identically named SSID's (AP's) with different MAC addresses. With AP lock on, the station will lock to MAC address and not roam between several Access Points with the same ESSID.
Channel/Frequency :
Select the desired channel range.
Security Type :
Select the desired security type from the drop-down list; the options are “
NONE
” “
OPEN
”, “
SHARED
”, “
WPA-PSK
” and “
WPA2-PSK
”.
OPEN / SHARED :
OPEN and SHARED require the user to set a WEP key to exchange data.
© Copyright 2012TRENDnet. All Rights Reserved.
66
TRENDnet User’s Guide
TEW-676APBO
64-bit
Key Length
128-bit
10 characters
26 characters
Hex
5 characters
ASCII
13 characters
Key Index :
key index is used to designate the WEP key during data transmission. 4 different WEP keys can be entered at the same time, but only one is chosen.
WEP Key # :
Enter
HEX
or
ASCII
format WEP key value; the system supports up to 4 sets of WEP keys.
WPA-PSK (or WPA2-PSK) :
WPA (or WPA2) Algorithms, allows the system accessing the network by using the WPA-PSK protected access.
Cipher Suite :
Select the desired cipher suite from the drop-down list; the options are
AES
and
TKIP
Pre-shared Key :
Enter the information for pre-shared key; the key can be either entered as a 256-bit secret in
64 HEX
digits format, or
8 to 63 ASCII
characters.
Profile List :
The user can manage the created profiles for home, work or public areas. Below depict an example for Profile List
Click “”
Edit
” an exist profile on the Profile List. The field of System
Configuration and Security Policy will display profile's content. Edit profile's content and then click “
Save
” button to save the profile.
Click “
Delete
” to remove profile.
Click and Select a profile from list, then click the “
Connect
” button to connecting to the wireless network with the profile setting. After clicking
“
Connect
” button, the system should be jump to
Remote AP Page
, you can verify connecting status on
Remote AP Page
.
Change these settings as described here and click
Save
button to save your changes.
Click
Reboot
button to activate your changes
© Copyright 2012TRENDnet. All Rights Reserved.
67
TRENDnet User’s Guide
Wireless LAN Network Creation
The network manager can configure related wireless settings,
Repeater AP Setup,
Security Settings,
and
MAC Filter Settings
.
Repeater AP Setup
Administrators can configure ESSID, SSID broadcasting, Maximum number of client associations, security type settings and MAC Filter settings.
TEW-676APBO
archived and setting of AP's clients could make to associate to it.
Maximum Clients :
The default value is
32
. You can enter the number of wireless clients that can associate to a particular SSID. When the number of client is set to 5, only 5 clients at most are allowed to connect to this Repeater AP.
Security Type :
Select the desired security type from the drop-down list; the options are
Disable
,
WEP
,
WPA-PSK
,
WPA2-PSK
,
WPA-Enterprise
,
WPA2-Enterprise
and
WEP 802.1X
.
Disable :
Data are unencrypted during transmission when this option is selected.
WEP :
Wired Equivalent Privacy(WEP) is a data encryption mechanism based on a 64-bit or 128-bit shared key.
Key Length
64-bit
128-bit
Hex
10 characters
26 characters
ASCII
5 characters
13 characters
Enable Repeater AP :
By default, it’s “
En
able
” for repeater AP. Select “
Enable
” to activate Repeater AP or click “
Disable
” to deactivate this function
ESSID :
Extended Service Set ID, When clients are browsing for available wireless networks, this is the SSID that will appear in the list. ESSID will determine the service type available to AP's clients associated with the specified AP.
Client Isolation :
By default, it’s “
Disable
”
.
Select “
Enable”
, all clients will be isolated from each other, which means they can’t reach each other.
Hidden SSID :
By default, it’s “
Disable
”
.
Enable this option to stop the SSID broadcast in your network. When disabled, people could easily obtain the SSID information with the site survey software and get access to the network if security is not turned on. When enabled, network security is enhanced. It’s suggested to enable it after AP security settings are
© Copyright 2012TRENDnet. All Rights Reserved.
Authentication Method :
Enable the desire option among
OPEN
,
SHARED
or
WEPAUTO
.
Key Index :
key index is used to designate the WEP key during data transmission. 4 different WEP keys can be entered at the same time, but only one is chosen.
WEP Key # :
Enter
HEX
or
ASCII
format WEP key value; the system supports up to 4 sets of WEP keys.
68
TRENDnet User’s Guide
WPA-PSK (or WPA2-PSK) :
WPA (or WPA2) Algorithms, allows the system accessing the network by using the WPA-PSK protected access.
Cipher Suite :
By default, it is
AES
. Select either AES or TKIP cipher suites
Pre-shared Key :
Enter the pre-shared key; the format shall go with the selected key type.
Group Key Update Period :
By default, it is
3600
seconds. This time interval for rekeying GTK, broadcast/multicast encryption keys, in seconds. Entering the time-length is required.
WPA-Enterprise (or WPA2-Enterprise):
The RADIUS authentication and encryption will be both enabled if this is selected.
TEW-676APBO
•
• interval for rekeying GTK, broadcast/multicast encryption keys, in seconds. Entering the time-length is required.
PMK Cache Period :
By default, it's 10 minutes. Set
WPA2
PMKID cache timeout period, after time out, the cached key will be deleted.
Pre-Authentication :
By default, it's “Disable”. To Enable is use to speed up roaming before pre-authenticating IEEE 802.1X/EAP part of the full RSN authentication and key handshake before actually associating with a new AP.
Radius Server Settings :
•
IP Address :
Enter the IP address of the Authentication RADIUS server.
•
•
•
Port :
By default, it’s
1812
.
The port number used to communicate with RADIUS server.
Shared secret :
A secret key used between system and RADIUS server. Supports
8
to
64
characters.
Session Timeout :
The Session timeout is in the range of
0
~
60
seconds
. The default is
0
to disable re-authenticate service.
Amount of time before a client will be required to re-authenticate.
WEP 802.1X :
When WEP 802.1x Authentication is enabled, please refer to the following Dynamic WEP and RADIUS settings to complete configuration.
WPA General Settings :
•
•
Cipher Suite :
By default, it is AES. Select either AES or TKIP cipher suites
Group Key Update Period :
By default, it’s
3600
seconds. This time
© Copyright 2012TRENDnet. All Rights Reserved.
Radius Server Settings :
•
IP Address :
Enter the IP address of the Authentication RADIUS
• server.
Port :
By default, it’s
1812
.
The port number used to communicate with RADIUS server.
69
TRENDnet User’s Guide
•
•
Shared secret :
A secret key used between system and RADIUS server. Supports
8
to
64
characters.
Session Timeout :
The Session timeout is in the range of
0
~
60
seconds
. The default is
0
to disable re-authenticate service.
Amount of time before a client will be required to re-authenticate.
Change these settings as described here and click
Save
button to save your changes.
Click
Reboot
button to activate your changes
Wireless MAC Filter Setup
Continue
6.3.1 Repeater AP Setup
section, the administrator can allow or reject clients to access Repeater AP.
TEW-676APBO
Add a station MAC :
Enter MAC address (e.g. aa:bb:cc:00:00:0a) and click “
Add
” button, then the MAC address should display in the “
Enable
” List.
There are a maximum of
20
clients allowed in this “Enable” List. The MAC addresses of the wireless clients can be added and removed to the list using the
Add
and
Remove
buttons
.
Click
Reboot
button to activate your changes
Access Control List
IP Filter Setup
Allows to create deny or allow rules to filter ingress or egress packets from specific source and/or to destination IP address on wired (LAN) or Wireless (WAN) ports. Filter rules could be used to filter unicast or multicast packets on different protocols as shown in the IP Filter Setup. Important to note that IP filter rules has precedence over Virtual server rules.
Please click on
Advance -> IP Filter Setup
and follow the below setting.
MAC Filter Setup :
By default, it’s “
Disable
”. Options are
Disable, Only Deny List
MAC or Only Allow List MAC
.
Two ways to set MAC filter rules :
Only Allow List MAC
.
The wireless clients in the “
Enable
” list will be
allowed
to access the Access Point;
All others or clients in the “
Disable
” list will be
denied
.
Only Deny List MAC
.
The wireless clients in the “
Enable
” list will be
denied
to access the Access Point; All others or clients in the “
Disable
” list will be
allowed
.
© Copyright 2012TRENDnet. All Rights Reserved.
70
TRENDnet User’s Guide
Source Address/Mask :
Enter desired source IP address and netmask; i.e.
192.168.2.10/32.
Source Port :
Enter a port or a range of ports as
start:end
; i.e. port 20:80
Destination Address/Mask :
Enter desired destination IP address and netmask; i.e.
192.168.1.10/32
Destination Port :
Enter a port or a range of ports as
start:end
; i.e. port 20:80
In/Out :
Applies to Ingress or egress packets
Protocol :
Supports
TCP
,
UDP
or
ICMP
.
Listen :
Click
Yes
radial button to match TCP packets only with the SYN flag.
Active :
Deny
to drop and
Pass
to allow per filter rules
Interface :
The interface that a filter rule applies
Click “
Save
” button to add IP filter rule. Total of
20
rules maximum allowed in the IP
Filter List. All rules can be edited or removed from the List. Click
Reboot
button to activate your changes.
When you create rules in the IP Filter List, the prior rules maintain higher priority. To allow limited access from a subnet to a destination network manager needs to create allow rules first and followed by deny rules. So, if you just want one IP address to access the system via telnet from your subnet, not others, the Example 1 demonstrates it, not rules in the Example 2.
Example 1 :
Create a higher priority rule to allow IP address 192.168.2.2 Telnet access from LAN port first, and deny Telnet access from remaining IP addresses in the same subnet.
Example 2 :
All Telnet access to the system from the IP addresses of subnet
192.168.2.x works with the rule 1 of Example 2. The rule 2 won’t make any difference.
Rule
1
2
Source
IP/Mask
192.168.10.0/
24
192.168.10.2/
32
Destination
IP/Mask
192.168.10.254/3
2
192.168.10.254/3
2
Port
22
22
In/
Out
In
In
Prot.
TCP
TCP
Listen
n n
Action
Deny pass
Side
LAN
LAN
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
MAC Filter Setup
Allows to create MAC filter rules to allow or deny unicast or multicast packets from limited number of MAC addresses. Important to note that MAC filter rules have precedence over IP Filter rules.
Please click on
Advance -> MAC Filter Setup
and follow the below setting.
MAC Filter Rule :
By default, it’s “
Disable
”. Options are
Disabled
,
Only Deny List
MAC
or
Only Allow List MAC
. Click
Save
button to save your change.
Two ways to set the MAC Filter List:
Only Allow List MAC
.
The wireless clients in the MAC Filter List will be
allowed
to access to Access Point;
All others will be denied.
Only Deny List MAC
.
The wireless clients in the MAC Filter List will be
denied
to access to Access Point;
All others will be allowed.
1
2
Source
Rule
IP/Mask
192.168.2.2/3
2
192.168.2.0/2
4
Destination
IP/Mask Port
In/
Out
Protocol Listen
192.168.2.254/32 22 In
192.168.2.254/32 22 In
TCP
TCP n n
Action
Pass
Deny
Side
LAN
LAN
71
TRENDnet User’s Guide
MAC Address :
Enter MAC address (e.g. aa:bb:cc:00:00:0a) and click “
Add
” button, then the MAC address should display in the MAC Filter List.
There are a maximum of
20
clients allowed in this MAC Filter List. The MAC addresses of the wireless clients can be added and removed to the list using the
Add
and
Delete
buttons
.
Click
Reboot
button to activate your changes
Parental Control Setup
Parental Control allows you to block or allow specific kinds of Internet usage and traffic, such as Internet access, designated services, and websites.
N
Main
WIFI WAN
Please click on
Advance -> Parental Control
and follow the below setting.
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
Rules :
control can be managed by a rule. Use the settings on this screen to establish an access policy.
Comment :
Enter a descriptive name for this rule for identifying purposes.
MAC Address :
Enter MAC address in valid MAC address
format(xx:xx:xx:xx:xx:xx) and click “
Add
” button to add in the MAC group of each rule. Click “
Remove
” button can remove MAC address in the group of each rule. There are
10
MAC address maximum allowed in each rule.
Local / Destination IP :
Specify local(LAN)/ destination IP addresses range required for this rule. If you specify local IP addresses range from 192.168.1.1 to 192.168.2.254. The matches a range of local IP addresses include every single IP address from the first to the last, so the example above includes everything from 192.168.1.1 to 192.168.2.254.
Protocol :
Select
Any
or specify protocol(
TCP
,
UDP
,
ICMP
,
URL Blocking
and
Application
) from drop-down list. When you select
ICMP
or
Layer 7
72
TRENDnet User’s Guide
Application
, the Local(LAN)/ Destination Port can not used.
If you want to block websites with specific URL address or using specific keywords, enter each URL or keyworks in the “
URL Blocking
” field and click
“
Add
” button to add in the URL Blocking list of each rule. Click “
Remove
” button can remove URL or keywords.
Local Port :
Specify local port(LAN port) range required for this rule
Destination Port :
Specify destination port range required for this rule
Active :
Check
Enable
button to activate this rule, and
Disable
to deactivate.
Click “
Add
” button to add control rule to List. There are
10
rules maximum allowed in this Control List. All rules can be removed or edited on the List. Click
Reboot
button to activate your changes.
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
QoS Setup
Quality of Service (QoS) refers to both a network's ability to deliver data with minimum delay, and the networking methods used to control the use of bandwidth. Without QoS, all traffic data is equally likely to be dropped when the network is congested. This can cause a reduction in network performance and make the network inadequate for timecritical application such as video-on-demand.
A classifier groups traffic into data flows according to specific criteria such as the source address, destination address, source port number, destination port number or incoming port number. For example, you can configure a classifier to select traffic from the same protocol port (such as FTP) to form a flow.
WAN
192.168.1.x
LAN
192.168.2.x
Download: 1024K
Download: 512K
192.168.2.x
192.168.2.x
Download: 2048K
73
TRENDnet User’s Guide
:
N
Main
WIFI WAN LAN
Please click on
Advance -> QoS
and follow the below setting.
Down:
1024Kbps p: 12Kbps
Down:
2048Kbps
Up:1024Kbp
A
B
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
Rules :
Use the rules to define the classifiers. After you define the rules, you can specify action to act upon the traffic that matches the rules
Comment :
Enter a descriptive name for this rule for identifying purposes.
MAC Address :
Enter MAC address in valid MAC address
format(xx:xx:xx:xx:xx:xx) and click “
Add
” button to add in the MAC group of each rule. Click “
Remove
” button can remove MAC address in the group of each rule. There are
10
MAC address maximum allowed in each rule.
Local / Destination IP :
Specify local(LAN)/ destination IP addresses range required for this rule. If you specify local IP addresses range from 192.168.1.1 to 192.168.2.254. The matches a range of local IP addresses include every single IP address from the first to the last, so the example above includes everything from 192.168.1.1 to 192.168.2.254.
DSCP Class
: Differentiated services code point, DSCP. Select Any or specify classify traffic from drop-down list.
The Per-Hop Behavior (PHB) is indicated by encoding a 6-bit value—called the
Differentiated Services Code Point (DSCP)—into the 8-bit Differentiated
Services (DS) field of the IP packet header. Below depicts class for DSCP.
BE :
Default
PHB, which is typically best-effort traffic
EF :
Expedited Forwarding
PHB, dedicated to low-loss, low-latency traffic
AF :
Assured Forwarding
PHB, which gives assurance of delivery under conditions. The AF behavior group defines four separate AF classes.
Within each class, packets are given a drop precedence (high, medium or low). The combination of classes and drop precedence yields twelve separate DSCP encodings from
AF11
through
AF43
DROP Precedence
Low Drop
Medium Drop
High Drop
Class 1 Class 2 Class 3
AF11
AF12
AF13
AF21
AF22
AF23
AF31
AF32
AF33
Class 4
AF41
AF42
AF43
74
TRENDnet User’s Guide
Rule
1
2
Source IP
192.168.2.10
Destination
IP
DSCP Protocol Remark
ANY
ANY
FTP
ANY
NO
NO
Bandwidth
(Up/Down)
1024/8196
512/512
Protocol :
Select
Any
or specify protocol from drop-down list. When you select
ICMP
or
Layer 7 Application
, the Source/ Destination Port cannot be used.
Local Port :
Specify local port(LAN port) range required for this rule
Destination Port :
Specify destination port range required for this rule
Action :
After configuring rule, a policy rule ensures that a traffic flow gets the requested treatment in the network.
Rule
1
Source IP
Destination
IP
DSCP Protocol Remark
ANY ANY NO
Bandwidth
(Up/Down)
512/512
2 192.168.2.10 ANY FTP NO 1024/8196
Remark DSCP :
Specify a new DSCP class, if you want to replace or remark the
DSCP
Bandwidth :
Click “
Enable
” to activate function, and click “
Disable
” to deactivate function
Upload / Download :
Specify the bandwidth in kilobit per second (Kbps). Enter a number between
8
to
8192
, default upload is
128
Kbps, download is
1024
Kbps.
Click “
Add
” button to add QoS rule to List. There are
10
rules maximum allowed in this
QoS List. All rules can be removed or edited on the List. Click
Reboot
button to activate your changes.
When you create rules on the QoS List, the previous rules have higher priority. . Below depict the examples for explaining priority of QoS setup.
Example 1 :
On this setting, the FTP has
1024
Kbps upload and
8196
Kbps download on
192.168.2.10
. The remaining IP address and other remaining protocol of IP address 192.168.2.10 only can use total bandwidth
512
Kbps
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
bandwidth. Because rule 1's priority is higher than rule 2
Example 2 :
On this setting, the FTP has
512
Kbps upload and
512
Kbps download on
192.168.2.10
Because rule 1's priority is higher than rule 2
Resource Sharing
DMZ
DMZ is commonly work with the NAT functionality as an alternative of Virtual
Server(Port Forwarding
)
while wanting all ports of DMZ host visible to Internet users.
Virtual Server rules have precedence over the DMZ rule. In order to use a range of ports available to access to different internal hosts Virtual Server rules are needed.
N
SSID: Repeater
Main
WIFI WAN LAN
Please click on
Advance -> DMZ
and follow the below setting.
75
TRENDnet User’s Guide
TEW-676APBO
Please click on
Advance -> Virtual Server
and follow the below setting.
DMZ :
By default, it’s
“
Disable
”.
Check
Enable
radial button to enable DMZ.
IP Address :
Enter IP address of DMZ host and only one DMZ host is supported.
Click
Save
button to save your changes. Click
Reboot
button to activate your changes.
Virtual Server (Port Forwarding)
“Virtual Server” can also referred to as “Port Forward” as well and used interchangeably.
Resources in the network can be exposed to the Internet users in a controlled manner including on-line gaming, video conferencing or others via Virtual Server setup. Don’t repeat ports’ usage to avoid confusion.
Suppose you want to assign ports 21-25 to one FTP, Telnet and SMTP server (A in the example), and port 80 to another (B in the example). You assign the LAN IP addresses and the ISP assigns the WAN IP address. The NAT network appears as a single host on the Internet.
Main
Base
St ti
SSID:
WIFI WAN
N
SSID: Repeater
LAN
B
A
© Copyright 2012TRENDnet. All Rights Reserved.
Virtual Server :
By Default, It’s “
Disable
”
.
Check
Enable
radial button to enable
Virtual Server.
Description :
Enter appropriate message for resource sharing via Virtual Server.
Private IP :
Enter corresponding IP address of internal resource to share.
Protocol Type :
Select appropriate sessions, TCP or UDP, from shared host via multiple private ports.
Private Port :
A port or a range of ports may be specified as
start:end
; i.e. port
20:80
Public Port :
A port or a range of ports may be specified as
start:end
; i.e. port 20:80
.
Click “
Add
” button to add Virtual Server rule to List. Total of maximum
20
rules are allowed in this List. All rules can be edited or removed from the List. Click
Reboot
button to activate your changes.
While creating multiple Virtual Server rules, the prior rules have higher priority. The
Virtual server rules have precedence over the DMZ one while both rules exist. Example 1 and 2 demonstrate proper usage of DMZ and Virtual Server rules.
Example 1 :
All connections should be redirected to
192.168.2.12
while DMZ is enabled. Since Virtual Server rules have precedence over the DMZ rule all
76
TRENDnet User’s Guide
connections to TCP port 22 will be directed to TCP port 22 of 192.168.2.10 and remaining connections to port TCP
20~80
will be redirected to port TCP
20~80
of
192.168.2.11
DMZ Enabled : 192.168.2.12
Rule Protocol Private IP
1
2
TCP
TCP
192.168.2.10
192.168.2.11
Private Port
22
20:80
Public Port
22
20:80
Example 2 :
All connections should be redirected to
192.168.2.12
while DMZ is enabled. Since Virtual Server rules have precedence over the DMZ rule all other connections to TCP port
20~80
will be redirected to port
20~80
of
192.168.2.11
.
The rule 2 won’t take effect.
DMZ Enabled : 192.168.2.12
Rule Protocol Private IP
1
2
TCP
TCP
192.168.2.11
192.168.2.10
Private Port
20:80
22
Public Port
20:80
22
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
System Status
This section breaks down into subsections of
System Overview
,
Associated Clients
Status, Remote AP
,
Extra Information
and
Event Log
.
Overview
Detailed information on
System
,
WAN Information
,
LAN Information
,
Wireless
Information
and
DHCP Server Status
can be reviewed via this page.
System :
Display the information of the system.
System Name :
The name of the system.
Operating Mode :
The mode currently in service.
Location :
The reminding note on the geographical location of the system.
Description :
The reminding note of the system.
Firmware Version :
The current firmware version installed.
Firmware Date :
The build time of the firmware installed.
Device Time :
The current time of the system.
System Up Time :
The time period that system has been in service since last reboot.
WAN Information :
Display the information of the WAN interface.
77
TRENDnet User’s Guide
TEW-676APBO
LAN Information :
Display total received and transmitted statistics on the LAN interface.
The WAN port specified
Dynamic IP
, the Release and Renew button will be showup, click
Release
button to release IP address of WAN port,
Renew
button to renew
IP address through DHCP server.
MAC Address :
The MAC address of the LAN port.
IP Address :
The IP address of the LAN port.
IP Netmask :
The IP netmask of the LAN port.
Receive bytes :
The total received packets in bytes on the LAN port.
Receive packets :
The total received packets of the LAN port.
Transmit bytes :
The total transmitted packets in bytes of the LAN port.
Transmit packets :
The total transmitted packets of the LAN port.
Wireless Information :
Display the detailed receive and transmit statistics of
Wireless interface.
The WAN port specified
PPPoE
or
PPTP
, and the
Connect
and
DisConnect
button will be show up. Click “
Connect
” button to assigned IP address from PPPoE or PPTP server, “
DisConnect
” button to release IP address of WAN port.
Mode :
Supports Static, Dynamic, PPPoE and PPTP modes.
Reconnect Mode :
The current reconnect mode of the PPPoE or PPTP.
MAC Address :
The MAC address of the WAN port.
IP Address :
The IP address of the WAN port.
IP Netmask :
The IP netmask of the WAN port.
IP Gateway :
The gateway IP address of the WAN port.
Primary DNS :
The primary DNS server in service.
Secondary DNS :
The secondary DNS server in service.
© Copyright 2012TRENDnet. All Rights Reserved.
AP MAC Address :
The MAC address of the Repeater AP.
Station MAC Address :
The MAC address of the Wireless Client Station.
Channel :
The current channel on the Wireless port.
AP Rate :
The current Bit Rate on the Repeater AP.
78
TRENDnet User’s Guide
Station Rate :
The current Bit Rate on the Wireless Client Station.
Receive bytes :
The total received packets in bytes on the Wireless port.
Receive packets :
The total received packets on the Wireless port.
Transmit bytes :
The total transmitted packets in bytes on the Wireless port.
Transmit packets :
The total transmitted packets on the Wireless port.
DHCP Server Status :
Users could retrieve DHCP server and DHCP clients’ IP/MAC address via this field.
TEW-676APBO
Associated Clients Status
It displays ESSID, on/off Status, Security Type, total number of wireless clients associated with Repeater AP.
IP Address :
IP addresses to LAN devices by DHCP server.
MAC Address :
MAC addresses of LAN devices.
Expired In :
Shows how long the leased IP address will expire.
© Copyright 2012TRENDnet. All Rights Reserved.
AP Information :
Highlights key Repeater AP information.
AP :
Available Repeater AP.
ESSID :
Display name of ESSID for Repeater AP.
MAC Address :
Display MAC address for Repeater AP.
Status :
On/Off
Security Type :
Display chosen security type; WEP, WPA/WPA2-PSK,
WPA/WPA2-Enterprise.
Clients :
Display total number of wireless connections on Repeater AP.
Repeater AP Clients :
Display all associated clients.
MAC Address :
MAC address of associated clients
Signal Strength ANT0/ANT1 :
Signal Strength of from associated clients.
Bandwidth :
Channel bandwidth of from associated clients
Idle Time :
Last inactive time period in seconds for a wireless connection.
Connect Time :
Total connection time period in seconds for a wireless
connection.
Disconnect :
Click “
Delete
” button to manually disconnect a wireless client in a
Repeater AP.
79
TRENDnet User’s Guide
Remote AP
SSID, MAC address, antenna 0/1 received signal strength and channel bandwidth for associated AP are available.
TEW-676APBO
Extra Info
Users could pull out information such as Route table, ARP table, MAC table, Bridge table or STP available in the drop-down list from system. The “Refresh” button is used to retrieve latest table information.
ESSID :
Shows the current ESSID, which must be the same on the wireless client and
AP in order for communication to be established.
MAC Address :
Display MAC address of associated AP.
Signal Strength ANT0/ANT1 :
Shows the wireless signal strength of the connection between system and an access point.
BandWidth :
Shows the current channel bandwidth used for communication. It should be “20” or “40”
© Copyright 2012TRENDnet. All Rights Reserved.
Netstat Information :
Select “
NetStatus Information
” on the drop-down list, the connection track list should show-up, the list can be updated using the Refresh button.
NetStatus will show all connection track on the system, the information include
80
TRENDnet User’s Guide
Protocol
,
Live Time
,
Status
,
Source/Destination IP address
and
Port
.
Route table information :
Select “
Route table information
” on the drop-down list to display route table.
TEW-676APBO could be used as a L2 or L3 device. It doesn’t support dynamic routing protocols such as RIP or OSPF. Static routes to specific hosts, networks or default gateway are set up automatically according to the IP configuration of system's interfaces. When used as a L2 device, it could switch packets and, as L3 device, it’s capable of being a gateway to route packets inward and outward.
TEW-676APBO
Bridge MAC information :
Select “
Bridge MACs Information
” on the drop-down list to display MAC table.
This table displays local MAC addresses associated with wired or wireless interfaces, but also remember non-local MAC addresses learned from wired or wireless interfaces.
Ageing timers will be reset when existing MAC addresses in table are learned again or added when new MAC addresses are seen from wired or wireless interfaces as well. When time runs out for a particular entry, it will be pruned from the table. In that situation, switching packet to that particular MAC address will be discontinued.
ARP table Information :
Select “
ARP Table Information
” on the drop-down list to display ARP table.
ARP associates each IP address to a unique hardware address (MAC) of a device. It is important to have a unique IP address as final destination to switch packets to.
Bridge STP Information :
Select “
Bridge STP Information
” on the drop-down list to display a list of bridge STP information.
Bridge table information :
Select “
Bridge Table information
” on the drop-down list to display bridge table.
Bridge table will show Bridge ID and STP's Status on the each Ethernet bridge and its attached interfaces, the Bridge Port should be attached to some interfaces.
© Copyright 2012TRENDnet. All Rights Reserved.
81
TRENDnet User’s Guide
QoS Plot
The QoS Plot show graphs which continuously represents the current data traffic on each QoS rule. The chart scale and throughput dimension (bps, Kbps, Mbps) changes dynamically according to the mean throughput value. The statistics is updated automatically every
5
seconds. The throughput statistics of QoS can be updated manually using the
Refresh
button.
Event Log
The Event log displays system events when system is up and running. Also, it becomes very useful as a troubleshooting tool when issues are experienced in system.
Time :
The date and time when the event occurred.
Facility :
It helps users to identify source of events such “System” or “User”
Severity :
Severity level that a specific event is associated such as “info”, “error”,
“warning”, etc.
Message :
Description of the event.
Click
Refresh
button to renew the log, or click
Clear
button to clear all the record.
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
Client Bridge + Universal Repeater Configuration
When Client Bridge+Universal Repeater mode is activated, the system can be configured as an
Access Point
and
Client Station
simultaneously. This section provides information in configuring the Client Bridge+Universal Repeater mode with graphical illustrations.
TEW-676APBO provides functions as stated below where they can be configured via a user-friendly web based interface.
Option System Wireless Utilities Status
Operating
Mode
General Setup Profiles Settings
System
Overview
LAN Clients
Functions
Management
Time Server
SNMP
Advanced Setup Firmware Upgrade
Repeater AP
Setup
Network Utility
Wireless Profile
Site Survey
Reboot
Remote AP
Extra Info
Event Log
Client Bridge+Universal Repeater Mode Functions
82
TRENDnet User’s Guide
External Network Connection
Network Requirement
It can be used as an Client Bridge or Universal Repeater to receive and repeat wireless signal over last mile applications, helping WISPs deliver wireless broadband Internet service to new residential and business customers. In this mode, TEW-676APBO is enabled with DHCP Server functions. The wired clients of TEW-676APBO are in
the same
subnet from Main Base Station and it
accepts
wireless connections from wireless client devices.
SSID:
Repeater_Main_AP
Main
Client Bridge + Universal Repeater mode network Configuration
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
Configure LAN IP
Here are the instructions for how to setup the local IP Address and Netmask.
Please click on
System -> LAN
and follow the below setting.
Mode :
Check either “Static IP” or “Dynamic IP” button as desired to set up the system IP of LAN port .
Static IP :
The administrator can manually setup the LAN IP address when static IP is available/ preferred.
IP Address :
The IP address of the LAN port; default IP address is
192.168.2.254
IP Netmask :
The Subnet mask of the LAN port; default Netmask is
255.255.255.0
83
TRENDnet User’s Guide
IP Gateway :
The default gateway of the LAN port; default Gateway is
192.168.2.1
Dynamic IP :
This configuration type is applicable when the TEW-676APBO is connected to a network with the presence of a DHCP server; all related IP information will be provided by the DHCP server automatically.
Hostname :
The Hostname of the LAN port
DNS :
Check either “No Default DNS Server” or “Specify DNS Server IP” button as desired to set up the system DNS.
Primary :
The IP address of the primary DNS server.
Secondary :
The IP address of the secondary DNS server.
DHCP Setup :
Devices connected to the system can obtain an IP address automatically when this service is enabled.
TEW-676APBO
Lease Time :
The IP addresses given out by the DHCP server will only be valid for the duration specified by the lease time. Increasing the time ensure client operation without interruptions, but could introduce potential conflicts.
Lowering the lease time will avoid potential address conflicts, but might cause more interruptions to the client while it will acquire new IP addresses from the
DHCP server. Default is
86400
seconds
Click
Save
button to save your changes. Click
Reboot
button to activate your changes
Access Point Association
Configure Wireless General Setting
The administrator can change the data transmission, channel and output power settings for the system. Please click on
Wireless -> General Setup
and follow the below setting.
DHCP :
Check
Enable
button to activate this function or
Disable
to deactivate this service.
Start IP / End IP:
Specify the range of IP addresses to be used by the DHCP server when assigning IP address to clients. The default range IP address is
192.168.2.10 to 192.168.2.70, the netmask is 255.255.255.0
DNS1 IP :
Enter IP address of the first DNS server; this field is required.
DNS2 IP :
Enter IP address of the second DNS server; this is optional.
WINS IP :
Enter IP address of the Windows Internet Name Service (WINS) server; this is optional.
Domain :
Enter the domain name for this network.
© Copyright 2012TRENDnet. All Rights Reserved.
84
TRENDnet User’s Guide
Band Mode :
Select an appropriate wireless band; bands available are
801.11a
or
802.11a/n mixed
mode.
Transmit Rate Control :
Select the desired rate from the drop-down list; the options are auto or ranging from
6
to
54
Mbps for
802.11a
Tx Power :
You can adjust the output power of the system to get the appropriate coverage for your wireless network. Specify digit number between
1
to
100
(the unit is %) for your environment. If you are not sure of which setting to choose, then keep the default setting,
100
%.
When
Band Mode
select in
802.11a only mode
, the
HT(High Throughput) Physical
Mode and 11n Configuration
settings should be hidden immediately.
Operating Mode :
By default, it's Mixed Mode
Mixed Mode :
In this mode packets are transmitted with a preamble
compatible with the legacy 802.11a/g, the rest of the packet has a new format.
In this mode the receiver shall be able to decode both the Mixed Mode packets and legacy packets.
Green Field :
In this mode high throughput packets are transmitted without a legacy compatible part.
Channel Bandwidth :
The "
Auto
” MHz option is usually best. The other option is available for special circumstances.
Guard Interval :
Using “
Auto
” option can increase throughput. However, it can also increase error rate in some installations, due to increased sensitivity to radiofrequency reflections. Select the option that works best for your installation.
MCS :
This parameter represents transmission rate. By default (Auto) the fastest possible transmission rate will be selected. You have the option of selecting the speed if necessary. (Refer to
Appendix C. MCS Data Rate
)
MPDU Enable :
Check
Enable
button to activate this function, and
Disable
to deactivate.
A-MPDU :
A-MPDU (Aggregated Mac Protocol Data Unit) allows the transmissions of multiple Ethernet frames to a single location as burst of up to 64kbytes This is performed on the hardware itself. Select “Manual” to set “MPDU Density”
MPDU Density :
Minimum separation of MPDUs in an A-MPDU.
0 1 2 3 4 5 6 7
No Restriction ¼ µs ½ µs 1 µs 2 µs 4 µs 8 µs 16 µs
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
A-MSDU :
Aggregated Mac Service Data Unit, A-MSDU. Select
Enable
to allow aggregation for multiple MSDUs in one MPDU. Default is disabled.
Click
Save
button to save your changes. Click
Reboot
button to activate your changes.
The items in this page are for AP's RF general settings and will be applied to
Repeater AP
Wireless Advanced Setup
To achieve optimal wireless performance, it is necessary to tweak advance setting per requirements properly, not necessary higher the better or lower.
The administrator can change the RTS threshold and fragmentation threshold settings for the system. Please click on
Wireless -> Advanced Setup
and follow the below setting.
Short Slot :
By default, it’s “
Enable
” for educing the slot time from the standard
20
microseconds
to the
9
microsecond
short slot time
Slot time is the amount of time a device waits after a collision before retransmitting a packet. Reducing the slot time decreases the overall back-off, which increases throughput. Back-off, which is a multiple of the slot time, is the random length of time a station waits before sending a packet on the LAN. For a sender and receiver own right of the channel the shorter slot time help manage shorter wait time to retransmit from collision because of hidden wireless clients or other causes. When collision sources can be removed sooner and other senders attempting to send are listening the channel(CSMA/CA) the owner of the channel should continue
85
TRENDnet User’s Guide
ownership and finish their transmission and release the channel. Then, following ownership of the channel will be sooner for the new pair due to shorter slot time.
However, when long duration of existing collision sources and shorter slot time exist the owners might experience subsequent collisions. When adjustment to longer slot time can’t improve performance then RTS/CTS could supplement and help improve performance.
Extra Slot Time :
Slot time is in the range of
1~255
and set in unit of
microsecond
.
The default value is
9
microsecond.
ACK Timeout :
ACK timeout is in the range of
1~255
and set in unit of
microsecond
.
The default value is
32
microsecond.
All data transmission in 802.11b/g request an “Acknowledgement” (ACK) send by receiving radio. The transmitter will resend the original packet if correspondent ACK failed to arrive within specific time interval, also refer to as “ACK Timeout”.
ACK Timeout is adjustable due to the fact that distance between two radio links may vary in different deployment. ACK Timeout makes significant influence in performance of long distance radio link. If ACK Timeout is set too short, transmitter will start to “Resend” packet before ACK is received, and throughputs become low due to excessively high re-transmission.
ACK Timeout is best determined by distance between the radios, data rate of average environment. The Timeout value is calculated based on round-trip time of packet with a little tolerance, So, if experiencing re-transmissions or poor performance the ACK Timeout could be made longer to accommodate.
Beacon Interval :
Beacon Interval is in the range of
20
~
1024
and set in unit of
millisecond
. The default value is
100
msec.
Access Point (AP) in IEEE 802.11 will send out a special approximated 50-byte frame, called “Beacon”. Beacon is broadcast to all the stations, provides the basic information of AP such as SSID, channel, encryption keys, signal strength, time stamp, support data rate.
All the radio stations received beacon recognizes the existence of such AP, and may proceed next actions if the information from AP matches the requirement. Beacon is sent on a periodic basis, the time interval can be adjusted.
By increasing the beacon interval, you can reduce the number of beacons and associated overhead, but that will likely delay the association and roaming process because stations scanning for available access points may miss the beacons. You can decrease the beacon interval, which increases the rate of beacons. This will make the association and roaming process very responsive; however, the network will incur additional overhead and throughput will go down.
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
DTIM Interval :
The DTIM interval is in the range of
1
~
255
. The default is
1
.
DTIM is defined as
Delivery Traffic Indication Message
. It is used to notify the wireless stations, which support power saving mode, when to wake up to receive multicast frame. DTIM is necessary and critical in wireless environment as a mechanism to fulfill power-saving synchronization.
A DTIM interval is a count of the number of beacon frames that must occur before the access point sends the buffered multicast frames. For instance, if DTIM Interval is set to 3, then the Wi-Fi clients will expect to receive a multicast frame after receiving three Beacon frame. The higher DTIM interval will help power saving and possibly decrease wireless throughput in multicast applications.
Fragment Threshold :
The Fragment Threshold is in the range of
256
~
2346
byte.
The default is
2346
byte.
Each Wi-Fi packet can be divided into smaller packets, marked with a sequential fragment number and re-assemble in the receiving ends. The purpose is to make a short frame, instead of long frame, transmitting by radio in a heavy noisy environment. Because of sending smaller frames, corruptions are much less likely to occur. The pros is obvious, the cons is the overhead for transmission. So, in a clean environment, higher fragment threshold can be an option to increase throughput.
Fragmentation will be triggered by setting the Fragment Threshold, usually in Bytelength. Only when the frame size is over the Threshold, fragmentation will take place automatically.
RTS Threshold :
TRTS Threshold is in the range of
1~2347
byte. The default is
2347
byte.
The main purpose of enabling RTS by changing RTS threshold is to reduce possible collisions due to hidden wireless clients. RTS in AP will be enabled automatically if the packet size is larger than the Threshold value. By default, RTS is disabled in a normal environment supports non-jumbo frames.
Short Preamble :
By default, it’s “
Enable
”. To
Disable
is to use Long 128-bit
Preamble Synchronization field.
The preamble is used to signal "here is a train of data coming" to the receiver. The short preamble provides 72-bit Synchronization field to improve WLAN transmission efficiency with less overhead.
Tx Burst :
By default, it’s “
Enable
”. To
Disable
is to deactivate Tx Burst.
With TX burst enabled, AP will send many packets in a burst, without collision detection and RTS/CTS for each packet. TX Burst have better throughput but cause interference
86
TRENDnet User’s Guide
with other APs in channel.
Pkt_Aggregate :
By default, it's “
Enable
”
Queue
Data Transmitted
AP to Clients
Priority Description
AC_BK
AC_BE
Background.
Best Effort
Low
Medium
High throughput. Bulk data that requires maximum throughput and is not time-sensitive is sent to this queue (FTP data, for example).
Medium throughput and delay.
Most traditional IP data is sent to this queue
AC_VI Video High
Minimum delay. Time-sensitive video data is automatically sent to this queue
AC_VO Voice High
Time-sensitive data like VoIP and streaming media are automatically sent to this queue
Increase efficiency by aggregating multiple packets of application data into a single transmission frame. In this way, 802.11n networks can send multiple data packets with the fixed overhead cost of just a single frame.
WMM :
By default, it's “
Disable
”. To
Enable
is to use WMM and the WMM parameters should appears.
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
WMM Parameters of Access Point :
This affects traffic flowing from the access point to the client station
Configuring QoS options consists of setting parameters on existing queues for different types of wireless traffic. You can configure different minimum and maximum wait times for the transmission of packets in each queue based on the requirements of the media being sent. Queues automatically provide minimum transmission delay for Voice, Video, multimedia, and mission critical applications, and rely on best-effort parameters for traditional IP data.
As an Example, time-sensitive Voice & Video, and multimedia are given effectively higher priority for transmission (lower wait times for channel access), while other applications and traditional IP data which are less timesensitive but often more data-intensive are expected to tolerate longer wait times.
Aifsn
: The Arbitration Inter-Frame Spacing Number specifies a wait time
(in milliseconds) for data frames
CWmin
: Minimum Contention Window. This parameter is input to the algorithm that determines the initial random backoff wait time
("window") for retry of a transmission. The value specified here in the
Minimum Contention Window is the upper limit (in milliseconds) of a range from which the initial random backoff wait time is determined.
87
TRENDnet User’s Guide
Queue
Data
Transmitted
Clients to AP
Priority Description
AC_BK Background. Low
High throughput. Bulk data that requires maximum throughput and is not time-sensitive is sent to this queue (FTP data, for example).
AC_BE Best Effort Medium Medium throughput and delay. Most traditional IP
AC_VI Video
AC_VO Voice
CWmax
: Maximum Contention Window. The value specified here in the
Maximum Contention Window is the upper limit (in milliseconds) for the doubling of the random backoff value. This doubling continues until either the data frame is sent or the Maximum Contention Window size is reached. Once the Maximum Contention Window size is reached, retries will continue until a maximum number of retries allowed is reached. Valid values for the "cwmax" are 1, 3, 7, 15, 31, 63, 127, 255, 511, or 1024. The value for "cwmax" must be higher than the value for "cwmin".
Txop
: Transmission Opportunity is an interval of time when a WME AP has the right to initiate transmissions onto the wireless medium (WM).
This value specifies (in milliseconds) the Transmission Opportunity (TXOP) for AP; that is, the interval of time when the WMM AP has the right to initiate transmissions on the wireless network.
ACM :
Admission Control Mandatory, ACM only takes effect on AC_VI and
AC_VO. When you do not click Checkbox, it means that the ACM is controlled by the connecting AP. If you click Checkbox, it means that the
Client is in charge.
AckPolicy :
Acknowledgment Policy, WMM defines two ACK policies:
Normal ACK
and
No ACK
. Click “
Checkbox
” indicates “
No ACK
”
When the no acknowledgment (No ACK) policy is used, the recipient does not acknowledge received packets during wireless packet exchange. This policy is suitable in the environment where communication quality is fine and interference is weak. While the No ACK policy helps improve transmission efficiency, it can cause increased packet loss when communication quality deteriorates. This is because when this policy is
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
used, a sender does not retransmit packets that have not been received by the recipient.
When the Normal ACK policy is used, the recipient acknowledges each received unicast packet.
WMM Parameters of Station :
This affects traffic flowing from the client station to the access point.
Aifsn
: The Arbitration Inter-Frame Spacing Number specifies a wait time
(in milliseconds) for data frames
CWmin
: Minimum Contention Window. This parameter is input to the algorithm that determines the initial random back off wait time
("window") for retry of a transmission. The value specified here in the
Minimum Contention Window is the upper limit (in milliseconds) of a range from which the initial random back off wait time is determined.
CWmax
: Maximum Contention Window. The value specified here in the
Maximum Contention Window is the upper limit (in milliseconds) for the doubling of the random backoff value. This doubling continues until either the data frame is sent or the Maximum Contention Window size is reached. Once the Maximum Contention Window size is reached, retries will continue until a maximum number of retries allowed is reached. Valid values for the "cwmax" are 1, 3, 7, 15, 31, 63, 127, 255, 511, or 1024. The value for "cwmax" must be higher than the value for "cwmin".
Txop
: Transmission Opportunity is an interval of time when a WME AP
has the right to initiate transmissions onto the wireless medium (WM).
This value specifies (in milliseconds) the Transmission Opportunity (Txop) for AP; that is, the interval of time when the WMM AP has the right to initiate transmissions on the wireless network.
ACM :
Admission Control Mandatory, ACM only takes effect on AC_VI and
AC_VO. When you do not click Checkbox, it means that the ACM is controlled by the connecting AP. If you click Checkbox, it means that the
Client is in charge.
Change these settings as described here and click
Save
button to save your changes.
Click
Reboot
button to activate your changes. The items in this page are for AP's RF advanced settings and will be applied to
Repeater AP
.
88
TRENDnet User’s Guide
Site Survey
Use this tool to scan and locate WISP Access Points and select one to associate with.
Please click on
Wireless -> Site Survey
. Below depicts an example for site survey.
TEW-676APBO
Create Wireless Profile
The administrator can configure station profiles via this page.
Please click on
Wireless -> Wireless Profile
and follow the below setting.
ESSID : Available
Extend Service Set ID of surrounding Access Points.
MAC Address :
MAC addresses of surrounding Access Points.
Signal :
Received signal strength of all found Access Points.
Channel :
Channel numbers used by all found Access Points.
Security :
Security type by all found Access Points.
Band :
Wireless band used by all found Access Points.
Network Type :
Network type used by all found Access Points.
Select :
Click “
Select
” to configure settings and associate with chosen AP.
© Copyright 2012TRENDnet. All Rights Reserved.
MAC Address :
The MAC address of the Wireless Station is displayed here.
Profile Name :
Set different profiles for quick connection uses.
ESSID :
Assign Service Set ID for the wireless system.
Lock to AP MAC :
This allows the station to always maintain connection to a particular AP with a specific MAC address. This is useful as sometimes there can be few identically named SSID's (AP's) with different MAC addresses. With AP lock on, the station will lock to MAC address and not roam between several Access Points with the same ESSID.
Channel/Frequency :
Select the desired channel range.
Security Type :
Select the desired security type from the drop-down list; the options are “
NONE
” “
OPEN
”, “
SHARED
”, “
WPA-PSK
” and “
WPA2-PSK
”.
OPEN / SHARED :
OPEN and
89
TRENDnet User’s Guide
SHARED require the user to set a WEP key to exchange data.
Key Index :
key index is used to designate the WEP key during data transmission. 4 different WEP keys can be entered at the same time, but only one is chosen.
WEP Key # :
Enter
HEX
or
ASCII
format WEP key value; the system supports up to 4 sets of WEP keys.
WPA-PSK (or WPA2-PSK) :
WPA (or WPA2) Algorithms, allows the system accessing the network by using the WPA-PSK protected access.
Cipher Suite :
Select the desired cipher suite from the drop-down list; the options are
AES
and
TKIP
Pre-shared Key :
Enter the information for pre-shared key; the key can be either entered as a 256-bit secret in
64 HEX
digits format, or
8 to 63 ASCII
characters.
Profile List :
The user can manage the created profiles for home, work or public areas. Below depict an example for Profile List
TEW-676APBO
Configuration and Security Policy will display profile's content. Edit profile's content and then click “
Save
” button to save the profile.
Click “
Delete
” to remove profile.
Click and Select a profile from list, then click the “
Connect
” button to connecting to the wireless network with the profile setting. After clicking
“
Connect
” button, the system should be jump to
Remote AP Page
, you can verify connecting status on
Remote AP Page
.
Change these settings as described here and click
Save
button to save your changes.
Click
Reboot
button to activate your changes
Key Length Hex ASCII
64-bit 10 characters 5 characters
128-bit 26 characters 13 characters
Wireless LAN Network Creation
The network manager can configure related wireless settings,
Repeater AP Setup,
Security Settings,
and
MAC Filter Settings
.
Repeater AP Setup
Administrators can configure ESSID, SSID broadcasting, Maximum number of client associations, security type settings and MAC Filter settings.
Click “”
Edit
” an exist profile on the Profile List. The field of System
© Copyright 2012TRENDnet. All Rights Reserved.
90
TRENDnet User’s Guide
Enable Repeater AP :
By default, it’s “
En
able
” for repeater AP. Select “
Enable
” to activate Repeater AP or click “
Disable
” to deactivate this function
ESSID :
Extended Service Set ID, When clients are browsing for available wireless networks, this is the SSID that will appear in the list. ESSID will determine the service type available to AP's clients associated with the specified AP.
Client Isolation :
By default, it’s “
Disable
”
.
Select “
Enable”
, all clients will be isolated from each other, which means they can’t reach each other.
Hidden SSID :
By default, it’s “
Disable
”
.
Enable this option to stop the SSID broadcast in your network. When disabled, people could easily obtain the SSID information with the site survey software and get access to the network if security is not turned on. When enabled, network security is enhanced. It’s suggested to enable it after AP security settings are archived and setting of AP's clients could make to associate to it.
Maximum Clients :
The default value is
32
. You can enter the number of wireless clients that can associate to a particular SSID. When the number of client is set to 5,
Key Length Hex ASCII
64-bit 10 characters 5 characters
128-bit
26 characters 13 characters only 5 clients at most are allowed to connect to this Repeater AP.
Security Type :
Select the desired security type from the drop-down list; the options are
Disable
,
WEP
,
WPA-PSK
,
WPA2-PSK
,
WPA-Enterprise
,
WPA2-Enterprise
and
WEP 802.1X
.
Disable :
Data are unencrypted during transmission when this option is selected.
WEP :
Wired Equivalent Privacy(WEP) is a data encryption mechanism based on a 64-bit or 128-bit shared key.
TEW-676APBO
Authentication Method :
Enable the desire option among
OPEN
,
SHARED
or
WEPAUTO
.
Key Index :
key index is used to designate the WEP key during data transmission. 4 different WEP keys can be entered at the same time, but only one is chosen.
WEP Key # :
Enter
HEX
or
ASCII
format WEP key value; the system supports up to 4 sets of WEP keys.
WPA-PSK (or WPA2-PSK) :
WPA (or WPA2) Algorithms, allows the system accessing the network by using the WPA-PSK protected access.
Cipher Suite :
By default, it is
AES
. Select either AES or TKIP cipher suites
Pre-shared Key :
Enter the pre-shared key; the format shall go with the selected key type.
Group Key Update Period :
By default, it is
3600
seconds. This time interval for rekeying GTK, broadcast/multicast encryption keys, in seconds. Entering the time-length is required.
WPA-Enterprise (or WPA2-Enterprise):
The RADIUS authentication and encryption will be both enabled if this is selected.
© Copyright 2012TRENDnet. All Rights Reserved.
91
TRENDnet User’s Guide
TEW-676APBO
following Dynamic WEP and RADIUS settings to complete configuration.
WPA General Settings :
•
Cipher Suite :
By default, it is AES. Select either AES or TKIP cipher suites
•
•
•
Group Key Update Period :
By default, it’s
3600
seconds. This time interval for rekeying GTK, broadcast/multicast encryption keys, in seconds. Entering the time-length is required.
PMK Cache Period :
By default, it's 10 minutes. Set
WPA2
PMKID cache timeout period, after time out, the cached key will be deleted.
Pre-Authentication :
By default, it's “Disable”. To Enable is use to speed up roaming before pre-authenticating IEEE 802.1X/EAP part of the full RSN authentication and key handshake before actually
associating with a new AP.
Radius Server Settings :
•
•
IP Address :
Enter the IP address of the Authentication RADIUS server.
Port :
By default, it’s
1812
.
The port number used to communicate with RADIUS server.
•
•
Shared secret :
A secret key used between system and RADIUS server. Supports
8
to
64
characters.
Session Timeout :
The Session timeout is in the range of
0
~
60
seconds
. The default is
0
to disable re-authenticate service.
Amount of time before a client will be required to re-authenticate.
WEP 802.1X :
When WEP 802.1x Authentication is enabled, please refer to the
© Copyright 2012TRENDnet. All Rights Reserved.
Radius Server Settings :
•
IP Address :
Enter the IP address of the Authentication RADIUS server.
•
•
•
Port :
By default, it’s
1812
.
The port number used to communicate with RADIUS server.
Shared secret :
A secret key used between system and RADIUS server. Supports
8
to
64
characters.
Session Timeout :
The Session timeout is in the range of
0
~
60
seconds
. The default is
0
to disable re-authenticate service.
Amount of time before a client will be required to re-authenticate.
92
TRENDnet User’s Guide
Wireless MAC Filter Setup
Continue
7.3.1 Repeater AP Setup
section, the administrator can allow or reject clients to access Repeater AP.
TEW-676APBO
System Status
This section breaks down into subsections of
System Overview
,
Associated Clients
Status
,
Remote AP
,
Extra Information
and
Event Log
.
System Overview
Display detailed information of
System, Network, LAN and Wireless
in the System
Overview page.
System :
Display the information of the system.
MAC Filter Setup :
By default, it’s “
Disable
”. Options are
Disable, Only Deny List
MAC or Only Allow List MAC
.
Two ways to set MAC filter rules :
Only Allow List MAC
.
The wireless clients in the “
Enable
” list will be
allowed
to access the Access Point;
All others or clients in the “
Disable
” list will be
denied
.
Only Deny List MAC
.
The wireless clients in the “
Enable
” list will be
denied
to access the Access Point; All others or clients in the “
Disable
” list will be
allowed
.
Add a station MAC :
Enter MAC address (e.g. aa:bb:cc:00:00:0a) and click “
Add
” button, then the MAC address should display in the “
Enable
” List.
There are a maximum of
20
clients allowed in this “Enable” List. The MAC addresses of the wireless clients can be added and removed to the list using the
Add
and
Remove
buttons
.
Click
Reboot
button to activate your changes
© Copyright 2012TRENDnet. All Rights Reserved.
System Name :
The name of the system.
Operating Mode :
The mode currently in service.
Location :
The reminding note on the geographical location of the system.
Description :
The reminding note of the system.
Firmware Version :
The current firmware version installed.
Firmware Date :
The build time of the firmware installed.
Device Time :
The current time of the system.
System Up Time :
The time period that system has been in service since last reboot.
93
TRENDnet User’s Guide
Network Information :
Display the information of the Network.
TEW-676APBO
Mode :
Supports Static or Dynamic modes on the LAN interface.
IP Address :
The management IP of system. By default, it’s 192.168.2.254.
IP Netmask :
The network mask. By default, it’s 255.255.255.0.
IP Gateway :
The gateway IP address and by default, it’s 192.168.2.1.
Primary DNS :
The primary DNS server in service.
Secondary DNS :
The secondary DNS server in service.
LAN Information :
Display the detailed receive and transmit statistics of LAN interface.
AP MAC Address :
The MAC address of the repeater AP.
Station MAC Address :
The MAC address of the Wireless Client Station.
Channel :
The current channel on the Wireless port.
AP Rate :
The current Bit Rate on the Repeater AP.
Station Rate :
The current Bit Rate on the Wireless Client Station.
Receive bytes :
The total received packets in bytes on the Wireless port.
Receive packets :
The total received packets on the Wireless port.
Transmit bytes :
The total transmitted packets in bytes on the Wireless port.
Transmit packets :
The total transmitted packets on the Wireless port.
DHCP Server Status :
Users could retrieve DHCP server and DHCP clients’ IP/MAC address via this field.
MAC Address :
The MAC address of the LAN port.
Receive bytes :
The total received packets in bytes on the LAN port.
Receive packets :
The total received packets of the LAN port.
Transmit bytes :
The total transmitted packets in bytes of the LAN port.
Transmit packets :
The total transmitted packets of the LAN port.
Wireless Information :
Display the detailed receive and transmit statistics of
Wireless interface.
© Copyright 2012TRENDnet. All Rights Reserved.
IP Address :
IP addresses to LAN devices by DHCP server.
MAC Address :
MAC addresses of LAN devices.
Expired In :
Shows how long the leased IP address will expire.
94
TRENDnet User’s Guide
Associated Clients Status
It displays ESSID, on/off Status, Security Type, total number of wireless clients associated with Repeater AP.
TEW-676APBO
Remote AP
SSID, MAC address, antenna 0/1 received signal strength and channel bandwidth for associated AP are available.
AP Information :
Highlights key Repeater AP information.
AP :
Available Repeater AP.
ESSID :
Display name of ESSID for Repeater AP.
MAC Address :
Display MAC address for Repeater AP.
Status :
On/Off
Security Type :
Display chosen security type; WEP, WPA/WPA2-PSK,
WPA/WPA2-Enterprise.
Clients :
Display total number of wireless connections on Repeater AP.
Repeater AP Clients :
Display all associated clients.
MAC Address :
MAC address of associated clients
Signal Strength ANT0/ANT1 :
Signal Strength of from associated clients.
Bandwidth :
Channel bandwidth of from associated clients
Idle Time :
Last inactive time period in seconds for a wireless connection.
Connect Time :
Total connection time period in seconds for a wireless
connection.
Disconnect :
Click “
Delete
” button to manually disconnect a wireless client in a
Repeater AP.
© Copyright 2012TRENDnet. All Rights Reserved.
Extra Information
ESSID :
Shows the current ESSID, which must be the same on the wireless client and
AP in order for communication to be established.
MAC Address :
Display MAC address of associated AP.
Signal Strength ANT0/ANT1 :
Shows the wireless signal strength of the connection between system and an access point.
BandWidth :
Shows the current channel bandwidth used for communication. It should be “20” or “40”
Users could pull out information such as Route table, ARP table, MAC table, Bridge table or STP available in the drop-down list from system. The “Refresh” button is used to retrieve latest table information.
Route table information :
Select “
Route table information
” on the drop-down list to display route table.
TEW-676APBO could be used as a L2 or L3 device. It doesn’t support dynamic
95
TRENDnet User’s Guide
routing protocols such as RIP or OSPF. Static routes to specific hosts, networks or default gateway are set up automatically according to the IP configuration of system's interfaces. When used as a L2 device, it could switch packets and, as L3 device, it’s capable of being a gateway to route packets inward and outward.
TEW-676APBO
Ageing timers will be reset when existing MAC addresses in table are learned again or added when new MAC addresses are seen from wired or wireless interfaces as well. When time runs out for a particular entry, it will be pruned from the table. In that situation, switching packet to that particular MAC address will be discontinued.
ARP table Information :
Select “
ARP Table Information
” on the drop-down list to display ARP table.
ARP associates each IP address to a unique hardware address (MAC) of a device. It is important to have a unique IP address as final destination to switch packets to.
Bridge table information :
Select “
Bridge Table information
” on the drop-down list to display bridge table.
Bridge table will show Bridge ID and STP's Status on the each Ethernet bridge and its attached interfaces, the Bridge Port should be attached to some interfaces. (e.g. eth2, ra0 and apcli0).
Bridge STP Information :
Select “
Bridge STP Information
” on the drop-down list to display a list of bridge STP information.
Bridge MAC information :
Select “
Bridge MACs Information
” on the drop-down list to display MAC table.
This table displays local MAC addresses associated with wired or wireless interfaces, but also remember non-local MAC addresses learned from wired or wireless interfaces.
© Copyright 2012TRENDnet. All Rights Reserved.
96
TRENDnet User’s Guide
TEW-676APBO
Event Log
The Event log displays system events when system is up and running. Also, it becomes very useful as a troubleshooting tool when issues are experienced in system.
© Copyright 2012TRENDnet. All Rights Reserved.
Time :
The date and time when the event occurred.
Facility :
It helps users to identify source of events such “System” or “User”
Severity :
Severity level that a specific event is associated such as “info”, “error”,
“warning”, etc.
Message :
Description of the event.
Click
Refresh
button to renew the log, or click
Clear
button to clear all the record.
97
TRENDnet User’s Guide
Router AP Mode Configuration
When Router AP mode is chosen, the system can be configured as a Router with Access
Point and WDS function. This section provides detailed explanation for users to configure in the Router AP mode with help of illustrations. In the Router AP mode, functions listed in the table below are also available from the Web-based GUI interface.
OPTION System Wireless Advance Utilities Status
Operating
Mode
General Setup DMZ
Profiles
Settings
System
Overview
WAN Advanced Setup IP Filter
Functions
LAN
DDNS
Managemen
Time Server
Virtual AP Setup MAC Filter
WDS Setup
Virtual
Parental l
QoS
UPNP
SNMP
Router AP Mode Functions
© Copyright 2012TRENDnet. All Rights Reserved.
Firmware
Upgrade
Network l
Reboot
Station
Statistics
Extra Info
QoS Plot
Event Log
TEW-676APBO
External Network Connection
Network Requirement
It can be used as an Router AP with WDS function. In this mode, TEW-676APBO is a gateway enabled with NAT and DHCP Server functions. The wireless clients connected to
TEW-676APBO are in
different
subnet from those connected to Internet.
Remote Bass Station
WDS
WAN WLAN
Router AP mode network configuration
98
TRENDnet User’s Guide
Configure WAN Setup
There are three connection types for the WAN port :
Static IP
,
Dynamic IP
,
PPPoE
and
PPTP
.
Please click on
System -> WAN
and follow the below setting.
TEW-676APBO
IP Netmask :
The Subnet mask of the WAN port; default Netmask is
255.255.255.0
IP Gateway :
The default gateway of the WAN port; default Gateway is
192.168.1.1
Dynamic IP :
Please consult with WISP for correct wireless settings to associate with WISP AP before a dynamic IP, along with related IP settings including DNS can be available from DHCP server. If IP Address is not assigned, please double check with your wireless settings and ensure successful association. Also, you may go to “
WAN Information
” in the Overview page to click
Release
button to release IP address and click
Renew
button to renew IP address again.
Hostname :
The Hostname of the WAN port
Mode :
By default, it’s “
Static IP
”. Check “Static IP”, “Dynamic IP”, “PPPoE” or
“PPTP”to set up system WAN IP.
Static IP :
Users can manually setup the WAN IP address with a static IP provided by WISP.
IP Address :
The IP address of the WAN port; default IP address is
192.168.1.254
© Copyright 2012TRENDnet. All Rights Reserved.
PPPoE :
To create wireless PPPoE WAN connection to a PPPoE server in network.
User Name :
Enter User Name for PPPoE connection
Password :
Enter Password for PPPoE connection
Reconnect Mode :
•
•
Always on
– A connection to Internet is always maintained.
On Demand
– A connection to Internet is made as needed.
•
Manual
– Click the “
Connect
” button on “
WAN Information
” in the
Overview page to connect to the Internet.
Idle Time :
Time to last before disconnecting PPPoE session when it is idle. Enter preferred Idle Time in minutes. Default is “
0
”, indicates disabled. When Idle time is disabled, the “
Reconnect Mode
” will turn out
“
Always on
”
MTU :
By default, it’s
1492
bytes. MTU stands for Maximum Transmission
Unit. Consult with WISP for a correct MTU setting.
99
TRENDnet User’s Guide
PPTP :
The Point-to-Point Tunneling Protocol (PPTP) mode enables the implementation of secure multi-protocol Virtual Private Networks (VPNs) through public networks.
TEW-676APBO
DNS :
Check “No Default DNS Server” or “Specify DNS Server IP” radial button as desired to set up system DNS.
Primary :
The IP address of the primary DNS server.
Secondary :
The IP address of the secondary DNS server.
MAC Clone :
The MAC address is a 12-digit HEX code uniquely assigned to hardware as identification. Some ISPs require you to register a MAC address in order to access to Internet. If not, you could use default MAC or clone MAC from a PC.
IP Address :
The IP address of the WAN port
IP Netmask :
The Subnet mask of the WAN port
PPTP Server IP Address :
The IP address of the PPTP server
User Name :
Enter User Name for PPTP connection
Password :
Enter Password for PPTP connection
Reconnect Mode :
•
•
•
Always on
– A connection to Internet is always maintained.
On Demand
– A connection to Internet is made as needed.
Manual
– Click the “
Connect
” button on “
WAN Information
” in the
Overview page to connect to the Internet.
Idle Time :
Time to last before disconnecting PPPoE session when it is idle. Enter preferred Idle Time in minutes. Default is “
0
”, indicates disabled. When Idle time is disabled, the “
Reconnect Mode
” will turn out
“
Always on
”
MTU :
By default, it’s
1460
bytes. MTU stands for Maximum Transmission
Unit. Consult with WISP for a correct MTU setting.
MPPE Encryption :
Microsoft Point-to-Point Encryption (MPPE) encrypts data in Point-to-Point Protocol(PPP)-based dial-up connections or Pointto-Point Tunneling Protocol (PPTP) virtual private network (VPN) connections.
128
-
bit
key (strong) and
40
-
bit
key (standard) MPPE encryption schemes are supported. MPPE provides data security for the
PPTP connection that is between the VPN client and the VPN server.
© Copyright 2012TRENDnet. All Rights Reserved.
Keep Default MAC Address :
Keep the default MAC address of WAN port on the system.
Clone MAC Address :
If you want to clone the MAC address of the PC, then click the
Clone MAC Address
button. The system will automatically detect your
PC's MAC address.
Manual MAC Address :
Enter the MAC address registered with your ISP.
Click
Save
button to save your changes. Click
Reboot
button to activate your changes
100
TRENDnet User’s Guide
Configure DDNS Setup
Dynamic DNS allows you to map domain name to dynamic IP address.
Please click on
System -> DDNS Setup
and follow the below setting.
TEW-676APBO
Configure LAN Setup
Here are the instructions for how to setup the local IP Address and Netmask.
Please click on
System -> LAN
and follow the below setting.
Enabled:
By default, it’s “
Disable
”
.
The mapping domain name won’t change when dynamic IP changes. The beauty of it is no need to remember the dynamic WAP IP while accessing to it.
Service Provider:
Select the preferred Service Provider from the drop-down list including
dyndns
,
dhs
,
ods
and
tzo
Hostname:
Host Name that you register to Dynamic-DNS service and export.
User Name & Password:
User Name and Password are used to login DDNS service.
Click
Save
button to save your changes. Click
Reboot
button to activate your changes
© Copyright 2012TRENDnet. All Rights Reserved.
LAN IP :
The administrator can manually setup the LAN IP address.
IP Address :
The IP address of the LAN port; default IP address is
192.168.2.254
IP Netmask :
The Subnet mask of the LAN port; default Netmask is
255.255.255.0
DHCP Setup :
Devices connected to the system can obtain an IP address automatically when this service is enabled.
101
TRENDnet User’s Guide
DHCP :
Check
Enable
button to activate this function or
Disable
to deactivate this service.
Start IP / End IP:
Specify the range of IP addresses to be used by the DHCP server when assigning IP address to clients. The default range IP address is
192.168.2.10 to 192.168.2.70, the netmask is 255.255.255.0
DNS1 IP :
Enter IP address of the first DNS server; this field is required.
DNS2 IP :
Enter IP address of the second DNS server; this is optional.
WINS IP :
Enter IP address of the Windows Internet Name Service (WINS) server; this is optional.
Domain :
Enter the domain name for this network.
Lease Time :
The IP addresses given out by the DHCP server will only be valid for the duration specified by the lease time. Increasing the time ensure client operation without interruptions, but could introduce potential conflicts.
Lowering the lease time will avoid potential address conflicts, but might cause more interruptions to the client while it will acquire new IP addresses from the
DHCP server. Default is
86400
seconds
Click
Save
button to save your changes. Click
Reboot
button to activate your changes
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
Wireless LAN Network Creation
The network manager can configure related wireless settings,
General Settings,
Advanced Settings, Virtual AP(VAP) Setting, Security Settings,
and
MAC Filter Settings
.
Wireless General Setup
The administrator can change the data transmission, channel and output power settings for the system. Please click on
Wireless -> General Setup
and follow the below setting.
102
TRENDnet User’s Guide
MAC Address :
The MAC address of the Wireless interface is displayed here.
Band Mode :
Select an appropriate wireless band; bands available are
801.11a
or
802.11a/n mixed
mode.
AP Isolation :
Select
Enable
, all clients will be isolated from each VAP, that means different VAP's clients can not reach to each other.
Transmit Rate Control :
Select the desired rate from the drop-down list; the options are auto or ranging from
6
to
54Mbps
only for
802.11a
mode.
Tx Power :
You can adjust the output power of the system to get the appropriate coverage for your wireless network. Specify digit numbers between
1
to
100
(the unit is %) for your environment. If you are not sure which setting to choose, then keep the default setting,
100
%.
When
Band Mode
select in
802.11a only mode
, the
HT(High Throughput)
settings should be hidden immediately.
HT TxStream
/
RxStream :
By default, it's
2
.
Operating Mode :
By default, it's Mixed Mode.
Mixed Mode :
In this mode packets are transmitted with a preamble
compatible with the legacy 802.11a/g, the rest of the packet has a new format.
In this mode the receiver shall be able to decode both the Mixed Mode packets and legacy packets.
Green Field :
In this mode high throughput packets are transmitted without a legacy compatible part.
Channel Bandwidth :
The "
20/40
” MHz option is usually best. The other option is available for special circumstances.
Guard Interval :
Using “
Auto
” option can increase throughput. However, it can also increase error rate in some installations, due to increased sensitivity to radiofrequency reflections. Select the option that works best for your installation.
MCS :
This parameter represents transmission rate. By default (Auto) the fastest possible transmission rate will be selected. You have the option of selecting the speed if necessary. (Refer to
Appendix C. MCS Data Rate
)
Reverse Direction Grant(RDG) :
Disable or enable reserve direction grant. Default is enabled.
A-MSDU :
Aggregated Mac Service Data Unit. Select
Enable
to allow aggregation for
multiple MSDUs in one MPDU Default is disabled.
Auto Block ACK :
Disable or enable auto block ACK. Default is enabled.
Decline BA Request :
Disable or enable decline BA request. Default is disabled.
Change these settings as described here and click
Save
button to save your changes.
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
Click
Reboot
button to activate your changes. The items in this page are for AP's RF general settings and will be applied to
all VAPs
and
WDS Links
.
Wireless Advanced Setup
To achieve optimal wireless performance, it is necessary to tweak advance setting per requirements properly, not necessary higher the better or lower.
The administrator can change the RTS threshold and fragmentation threshold settings for the system. Please click on
Wireless -> Advanced Setup
and follow the below setting.
Short Slot :
By default, it’s “
Enable
” for educing the slot time from the standard
20
microseconds
to the
9
microsecond
short slot time
Slot time is the amount of time a device waits after a collision before retransmitting a packet. Reducing the slot time decreases the overall back-off, which increases throughput. Back-off, which is a multiple of the slot time, is the random length of time a station waits before sending a packet on the LAN. For a sender and receiver own right of the channel the shorter slot time help manage shorter wait time to retransmit from collision because of hidden wireless clients or other causes. When collision sources can be removed sooner and other senders attempting to send are listening the channel(CSMA/CA) the owner of the channel should continue ownership and finish their transmission and release the channel. Then, following ownership of the channel will be sooner for the new pair due to shorter slot time.
However, when long duration of existing collision sources and shorter slot time exist
103
TRENDnet User’s Guide
the owners might experience subsequent collisions. When adjustment to longer slot time can’t improve performance then RTS/CTS could supplement and help improve performance.
Extra Slot Time :
Slot time is in the range of
1~255
and set in unit of
microsecond
.
The default value is
9
microsecond.
ACK Timeout :
ACK timeout is in the range of
1~255
and set in unit of
microsecond
.
The default value is
32
microsecond.
All data transmission in 802.11b/g request an “Acknowledgement” (ACK) send by receiving radio. The transmitter will resend the original packet if correspondent ACK failed to arrive within specific time interval, also refer to as “ACK Timeout”.
ACK Timeout is adjustable due to the fact that distance between two radio links may vary in different deployment. ACK Timeout makes significant influence in performance of long distance radio link. If ACK Timeout is set too short, transmitter will start to “Resend” packet before ACK is received, and throughputs become low due to excessively high re-transmission.
ACK Timeout is best determined by distance between the radios, data rate of average environment. The Timeout value is calculated based on round-trip time of packet with a little tolerance, So, if experiencing re-transmissions or poor performance the ACK Timeout could be made longer to accommodate.
Beacon Interval :
Beacon Interval is in the range of
20
~
1024
and set in unit of
millisecond
. The default value is
100
msec.
Access Point (AP) in IEEE 802.11 will send out a special approximated 50-byte frame, called “Beacon”. Beacon is broadcast to all the stations, provides the basic information of AP such as SSID, channel, encryption keys, signal strength, time stamp, support data rate.
All the radio stations received beacon recognizes the existence of such AP, and may proceed next actions if the information from AP matches the requirement. Beacon is sent on a periodic basis, the time interval can be adjusted.
By increasing the beacon interval, you can reduce the number of beacons and associated overhead, but that will likely delay the association and roaming process because stations scanning for available access points may miss the beacons. You can decrease the beacon interval, which increases the rate of beacons. This will make the association and roaming process very responsive; however, the network will incur additional overhead and throughput will go down.
DTIM Interval :
The DTIM interval is in the range of
1
~
255
. The default is
1
.
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
DTIM is defined as
Delivery Traffic Indication Message
. It is used to notify the wireless stations, which support power saving mode, when to wake up to receive multicast frame. DTIM is necessary and critical in wireless environment as a mechanism to fulfill power-saving synchronization.
A DTIM interval is a count of the number of beacon frames that must occur before the access point sends the buffered multicast frames. For instance, if DTIM Interval is set to 3, then the Wi-Fi clients will expect to receive a multicast frame after receiving three Beacon frame. The higher DTIM interval will help power saving and possibly decrease wireless throughput in multicast applications.
Fragment Threshold :
The Fragment Threshold is in the range of
256
~
2346
byte.
The default is
2346
byte.
Each Wi-Fi packet can be divided into smaller packets, marked with a sequential fragment number and re-assemble in the receiving ends. The purpose is to make a short frame, instead of long frame, transmitting by radio in a heavy noisy environment. Because of sending smaller frames, corruptions are much less likely to occur. The pros is obvious, the cons is the overhead for transmission. So, in a clean environment, higher fragment threshold can be an option to increase throughput.
Fragmentation will be triggered by setting the Fragment Threshold, usually in Bytelength. Only when the frame size is over the Threshold, fragmentation will take place automatically.
RTS Threshold :
TRTS Threshold is in the range of
1~2347
byte. The default is
2347
byte.
The main purpose of enabling RTS by changing RTS threshold is to reduce possible collisions due to hidden wireless clients. RTS in AP will be enabled automatically if the packet size is larger than the Threshold value. By default, RTS is disabled in a normal environment supports non-jumbo frames.
Short Preamble :
By default, it’s “
Enable
”. To
Disable
is to use Long 128-bit
Preamble Synchronization field.
The preamble is used to signal "here is a train of data coming" to the receiver. The short preamble provides 72-bit Synchronization field to improve WLAN transmission efficiency with less overhead.
Tx Burst :
By default, it’s “
Enable
”. To
Disable
is to deactivate Tx Burst.
With TX burst enabled, AP will send many packets in a burst, without collision detection and RTS/CTS for each packet. TX Burst have better throughput but cause interference with other APs in channel.
104
TRENDnet User’s Guide
Pkt_Aggregate :
By default, it's “
Enable
”
Increase efficiency by aggregating multiple packets of application data into a single transmission frame. In this way, 802.11n networks can send multiple data packets
Priority Description
AC_BK
AC_BE
AC_VI
Background.
Best Effort
Video
Low
Medium
High
High throughput. Bulk data that requires maximum throughput and is not time-sensitive is sent to this queue (FTP data, for example).
Medium throughput and delay.
Most traditional IP data is sent to this queue
Minimum delay. Time-sensitive video data is automatically sent to this queue
AC_VO Voice High
Time-sensitive data like VoIP and streaming media are automatically sent to this queue with the fixed overhead cost of just a single frame.
WMM :
By default, it's “
Disable
”. To
Enable
is to use WMM and the WMM parameters should appears.
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
WMM Parameters of Access Point :
This affects traffic flowing from the access point to the client station
Configuring QoS options consists of setting parameters on existing queues for different types of wireless traffic. You can configure different minimum and maximum wait times for the transmission of packets in each queue based on the requirements of the media being sent. Queues automatically provide minimum transmission delay for Voice, Video, multimedia, and mission critical applications, and rely on best-effort parameters for traditional IP data.
As an Example, time-sensitive Voice & Video, and multimedia are given effectively higher priority for transmission (lower wait times for channel access), while other applications and traditional IP data which are less timesensitive but often more data-intensive are expected to tolerate longer wait times.
Aifsn
: The Arbitration Inter-Frame Spacing Number specifies a wait time
(in milliseconds) for data frames
CWmin
: Minimum Contention Window. This parameter is input to the algorithm that determines the initial random backoff wait time
("window") for retry of a transmission. The value specified here in the
Minimum Contention Window is the upper limit (in milliseconds) of a range from which the initial random backoff wait time is determined.
CWmax
: Maximum Contention Window. The value specified here in the
105
TRENDnet User’s Guide
Maximum Contention Window is the upper limit (in milliseconds) for the doubling of the random backoff value. This doubling continues until either the data frame is sent or the Maximum Contention Window size is reached. Once the Maximum Contention Window size is reached, retries will continue until a maximum number of retries allowed is reached. Valid values for the "cwmax" are 1, 3, 7, 15, 31, 63, 127, 255, 511, or 1024. The value for "cwmax" must be higher than the value for "cwmin".
Txop
: Transmission Opportunity is an interval of time when a WME AP has the right to initiate transmissions onto the wireless medium (WM).
This value specifies (in milliseconds) the Transmission Opportunity (TXOP) for AP; that is, the interval of time when the WMM AP has the right to initiate transmissions on the wireless network.
ACM :
Admission Control Mandatory, ACM only takes effect on AC_VI and
AC_VO. When you do not click Checkbox, it means that the ACM is controlled by the connecting AP. If you click Checkbox, it means that the
Client is in charge.
AckPolicy :
Acknowledgment Policy, WMM defines two ACK policies:
Normal ACK
and
No ACK
. Click “
Checkbox
” indicates “
No ACK
”
When the no acknowledgment (No ACK) policy is used, the recipient does not acknowledge received packets during wireless packet exchange. This policy is suitable in the environment where communication quality is fine and interference is weak. While the No ACK policy helps improve transmission efficiency, it can cause increased packet loss when communication quality deteriorates. This is because when this policy is used, a sender does not retransmit packets that have not been received by the recipient.
When the Normal ACK policy is used, the recipient acknowledges each received unicast packet.
WMM Parameters of Station :
This affects traffic flowing from the client station to the access point.
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
Queue
Data
Transmitted
Clients to AP
Priority Description
AC_BK Background. Low
High throughput. Bulk data that requires maximum throughput and is not time-sensitive is sent to this queue (FTP data, for example).
AC_BE Best Effort Medium Medium throughput and delay. Most traditional IP
AC_VI Video
AC_VO Voice
Aifsn
: The Arbitration Inter-Frame Spacing Number specifies a wait time
(in milliseconds) for data frames
CWmin
: Minimum Contention Window. This parameter is input to the algorithm that determines the initial random backoff wait time
("window") for retry of a transmission. The value specified here in the
Minimum Contention Window is the upper limit (in milliseconds) of a range from which the initial random backoff wait time is determined.
CWmax
: Maximum Contention Window. The value specified here in the
Maximum Contention Window is the upper limit (in milliseconds) for the doubling of the random backoff value. This doubling continues until either the data frame is sent or the Maximum Contention Window size is reached. Once the Maximum Contention Window size is reached, retries will continue until a maximum number of retries allowed is reached. Valid values for the "cwmax" are 1, 3, 7, 15, 31, 63, 127, 255, 511, or 1024. The value for "cwmax" must be higher than the value for "cwmin".
Txop
: Transmission Opportunity is an interval of time when a WME AP has the right to initiate transmissions onto the wireless medium (WM).
This value specifies (in milliseconds) the Transmission Opportunity (Txop) for AP; that is, the interval of time when the WMM AP has the right to initiate transmissions on the wireless network.
ACM :
Admission Control Mandatory, ACM only takes effect on AC_VI and
AC_VO. When you do not click Checkbox, it means that the ACM is controlled by the connecting AP. If you click Checkbox, it means that the
Client is in charge.
106
TRENDnet User’s Guide
Click
Save
button to save your changes. Click
Reboot
button to activate your changes.
The items in this page are for AP's RF advanced settings and will be applied to
all VAPs
and
WDS Links
.
Create Virtual AP (VAP)
The TEW-676APBO support broadcasting multiple SSIDs, allowing the creation of Virtual
Access Points, partitioning a single physical access point into
7
logical access points, each of which can have a different set of security and network settings.
Figure 8-2
shows multiple SSIDs with security type settings.
WEP
NAT
WPA-PSK/TKIP
WPA2-PSK/AES
WPA-Enterprise/TKIP
WAN WAN
Multiple SSIDs with different Security Type
Virtual AP Overview
The administrator can view all of the Virtual AP's settings via this page.
Please click on
Wireless -> Virtual AP Setup
and the Virtual AP Overview Page appears.
TEW-676APBO
VAP :
Indicate the system's Virtual AP.
ESSID :
Indicate the ESSID of the respective Virtual AP
MAC Address :
The MAC address of the VAP Interface is displayed here. When you enable AP and reboot system, the MAC address will display here.
Status :
Indicate the Status of the respective Virtual AP. The
Primary AP
always on.
Security Type :
Indicate an used security type of the respective Virtual AP.
MAC Filter :
Indicate an used MAC filter of the respective Virtual AP.
Edit :
Click
Edit
button to configure Virtual AP's settings, including security type and
MAC Filter.
© Copyright 2012TRENDnet. All Rights Reserved.
107
TRENDnet User’s Guide
Virtual AP Setup
For each Virtual AP, administrators can configure SSID, SSID broadcasting, Maximum number of client associations, security type settings.
Click
Edit
button on the Edit column, and then a Virtual AP setup page appears.
Enable AP :
By default, it’s “
Disable
” for VAP1 ~ VAP6.
The Primary AP always enabled
.
Select “
Enable
” to activate VAP or click “
Disable
” to deactivate this function
ESSID :
Extended Service Set ID, When clients are browsing for available wireless networks, this is the SSID that will appear in the list. ESSID will determine the service type available to AP's clients associated with the specified VAP.
Client Isolation :
Select
Enable
, all clients will be isolated from each other, that means all clients can not reach to other clients. Below Figures depict Client Isolation and AP Isolation
© Copyright 2012TRENDnet. All Rights Reserved.
VAP0
TEW-676APBO
Hidden SSID :
By default, it’s “
Disable
”
.
Enable this option to stop the SSID broadcast in your network. When disabled, people could easily obtain the SSID information with the site survey software and get access to the network if security is not turned on. When enabled, network security is enhanced. It’s suggested to enable it after AP security settings are archived and setting of AP clients could make to associate to it.
Maximum Clients :
The default value is
32
. You can enter the number of wireless clients that can associate to a particular SSID. When the number of client is set to 5, only 5 clients at most are allowed to connect to this VAP.
VAP1
VAP2
Cllent Isolation
AP Isolation
108
TRENDnet User’s Guide
Security Type :
Select the desired security type from the drop-down list; the options are
Disable
,
WEP
,
WPA-PSK
,
WPA2-PSK
,
WPA-Enterprise
,
WPA2-Enterprise
and
WEP 802.1X
.
Disable :
Data are unencrypted during transmission when this option is
selected.
WEP :
Wired Equivalent Privacy(WEP) is a data encryption mechanism based on a 64-bit or 128-bit shared key.
TEW-676APBO
Cipher Suite :
By default, it is
AES
. Select either AES or TKIP cipher suites
Pre-shared Key :
Enter the pre-shared key; the format shall go with the selected key type.
Group Key Update Period :
By default, it is
3600
seconds. This time interval for rekeying GTK, broadcast/multicast encryption keys, in seconds. Entering the time-length is required.
WPA-Enterprise (or WPA2-Enterprise):
The RADIUS authentication and encryption will be both enabled if this is selected.
Authentication Method :
Enable the desire option among
OPEN
,
SHARED
or
WEPAUTO
.
Key Index : Key index is used to designate the WEP key during data transmission. 4 different WEP keys can be entered at the same time, but only
one is chosen.
WEP Key # :
Enter
HEX
or
ASCII
format WEP key value; the system supports up to 4 sets of WEP keys.
Key Length
64-bit
128-bit
Hex
10 characters
26 characters
ASCII
5 characters
13 characters
WPA-PSK (or WPA2-PSK) :
WPA (or WPA2) Algorithms, allows the system accessing the network by using the WPA-PSK protected access.
© Copyright 2012TRENDnet. All Rights Reserved.
WPA General Settings :
•
Cipher Suite :
By default, it is AES. Select either AES or TKIP cipher
• suites
Group Key Update Period :
By default, it’s
3600
seconds. This time interval for rekeying GTK, broadcast/multicast encryption keys, in seconds. Entering the time-length is required.
•
•
PMK Cache Period :
By default, it's 10 minutes. Set
WPA2
PMKID cache timeout period, after time out, the cached key will be deleted.
Pre-Authentication :
By default, it's “Disable”. To Enable is use to speed up roaming before pre-authenticating IEEE 802.1X/EAP part of the full RSN authentication and key handshake before actually associating with a new AP.
Radius Server Settings :
•
IP Address :
Enter the IP address of the Authentication RADIUS
109
TRENDnet User’s Guide
•
• server.
Port :
By default, it’s
1812
.
The port number used to communicate with RADIUS server.
Shared secret :
A secret key used between system and RADIUS server. Supports
8
to
64
characters.
Session Timeout :
The Session timeout is in the range of
0
~
60
•
seconds
. The default is
0
to disable re-authenticate service.
Amount of time before a client will be required to re-authenticate.
WEP 802.1X :
When WEP 802.1x Authentication is enabled, please refer to the following Dynamic WEP and RADIUS settings to complete configuration.
TEW-676APBO
Wireless MAC Filter Setup
Continue
Virtual AP Setup
section. For each Virtual AP setting, the administrator can allow or reject clients to access each Virtual AP.
Radius Server Settings :
•
IP Address :
Enter the IP address of the Authentication RADIUS server.
•
•
•
Port :
By default, it’s
1812
.
The port number used to communicate with RADIUS server.
Shared secret :
A secret key used between system and RADIUS server. Supports
8
to
64
characters.
Session Timeout :
The Session timeout is in the range of
0
~
60
seconds
. The default is
0
to disable re-authenticate service.
Amount of time before a client will be required to re-authenticate.
Click
Save
button to save your changes. Click
Reboot
button to activate your changes
© Copyright 2012TRENDnet. All Rights Reserved.
MAC Filter Setup :
By default, it’s “
Disable
”. Options are
Disable, Only Deny List
MAC or Only Allow List MAC
.
Two ways to set MAC filter rules :
Only Allow List MAC
.
The wireless clients in the “
Enable
” list will be
allowed
to access the Access Point;
All others or clients in the “
Disable
” list will be
denied
.
Only Deny List MAC
.
The wireless clients in the “
Enable
” list will be
denied
to access the Access Point; All others or clients in the “
Disable
” list will be
allowed
.
Add a station MAC :
Enter MAC address (e.g. aa:bb:cc:00:00:0a) and click “
Add
” button, then the MAC address should display in the “
Enable
” List.
There are a maximum of
20
clients allowed in this “Enable” List. The MAC addresses of the wireless clients can be added and removed to the list using the
Add
and
Remove
buttons
.
Click
Reboot
button to activate your changes
110
TRENDnet User’s Guide
Wireless Network Expansion
The administrator could create WDS Links to expand wireless network. When WDS is enabled, access point functions as a wireless bridge and is able to communicate with other access points via WDS links.
A WDS link is bidirectional and both side must support WDS. Access points know each other by MAC Address. In other words, each access point needs to include MAC address of its peer. Ensure all access points are configured with the same channel and own same security type settings.
Remote Bass Station
WDS
WAN WLAN
Please click on
Wireless -> WDS Setup
and follow the below setting.
TEW-676APBO
Security Type :
Option is “
Disable
”, “
WEP
”, “
TKIP
”or “
AES
” from drop-down list.
Needs the same type to build WDS links. Security type takes effect when WDS is enabled.
WEP Key :
Enter
5 / 13 ASCII
or
10 / 26 HEX
format WEP key.
TKIP Key :
Enter
8
to
63 ASCII
or
64 HEX
format TKIP key.
AES Key :
Enter
8
to
63 ASCII
or
64 HEX
format AES key.
WDS MAC List
Enable :
Click
Enable
to create WDS link.
WDS Peer's MAC Address :
Enter the MAC address of WDS peer.
Description :
Description of WDS link.
Click
Save
button to save your changes. Click
Reboot
button to activate your changes
The
System Overview
page appears upon the completion of reboot.
© Copyright 2012TRENDnet. All Rights Reserved.
111
TRENDnet User’s Guide
Access Control List
IP Filter Setup
Allows to create deny or allow rules to filter ingress or egress packets from specific source and/or to destination IP address on wired (LAN) or Wireless (WAN) ports. Filter rules could be used to filter unicast or multicast packets on different protocols as shown in the IP Filter Setup. Important to note that IP filter rules has precedence over Virtual server rules.
Please click on
Advance -> IP Filter Setup
and follow the below setting.
TEW-676APBO
Listen :
Click
Yes
radial button to match TCP packets only with the SYN flag.
Active :
Deny
to drop and
Pass
to allow per filter rules
Interface :
The interface that a filter rule applies
Click “
Save
” button to add IP filter rule. Total of
20
rules maximum allowed in the IP
Filter List. All rules can be edited or removed from the List. Click
Reboot
button to activate your changes.
When you create rules in the IP Filter List, the prior rules maintain higher priority. To allow limited access from a subnet to a destination network manager needs to create allow rules first and followed by deny rules. So, if you just want one IP address to access the system via telnet from your subnet, not others, the Example 1 demonstrates it, not rules in the Example 2.
Example 1 :
Create a higher priority rule to allow IP address 192.168.2.2 Telnet access from LAN port first, and deny Telnet access from remaining IP addresses in the same subnet.
Example 2 :
All Telnet access to the system from the IP addresses of subnet
192.168.2.x works with the rule 1 of Example 2. The rule 2 won’t make any difference.
Source Address/Mask :
Enter desired source IP address and netmask; i.e.
192.168.2.10/32.
Source Port :
Enter a port or a range of ports as
start:end
; i.e. port 20:80
Destination Address/Mask :
Enter desired destination IP address and netmask; i.e.
192.168.1.10/32
Destination Port :
Enter a port or a range of ports as
start:end
; i.e. port 20:80
In/Out :
Applies to Ingress or egress packets
Protocol :
Supports
TCP
,
UDP
or
ICMP
.
© Copyright 2012TRENDnet. All Rights Reserved.
112
TRENDnet User’s Guide
MAC Filter Setup
Allows to create MAC filter rules to allow or deny unicast or multicast packets from limited number of MAC addresses. Note, the MAC filter rules have precedence over IP
Filter rules.
Please click on
Advance -> MAC Filter Setup
and follow the below setting.
TEW-676APBO
Parental Control Setup
Parental Control allows you to block or allow specific kinds of Internet usage and traffic, such as Internet access, designated services, and websites.
Station
NAT
WDS
WAN
SSID:
MSN
WLAN
Please click on
Advance -> Parental Control
and follow the below setting.
MAC Filter Rule :
By default, it’s “
Disable
”. Options are
Disabled
,
Only Deny List
MAC
or
Only Allow List MAC
. Click
Save
button to save your change.
Two ways to set the MAC Filter List:
Only Allow List MAC
.
The wireless clients in the MAC Filter List will be
allowed
to access to Access Point;
All others will be denied.
Only Deny List MAC
.
The wireless clients in the MAC Filter List will be
denied
to access to Access Point;
All others will be allowed.
MAC Address :
Enter MAC address (e.g. aa:bb:cc:00:00:0a) and click “
Add
” button, then the MAC address should display in the MAC Filter List.
There are a maximum of
20
clients allowed in this MAC Filter List. The MAC addresses of the wireless clients can be added and removed to the list using the
Add
and
Delete
buttons
.
Click
Reboot
button to activate your changes
© Copyright 2012TRENDnet. All Rights Reserved.
113
TRENDnet User’s Guide
TEW-676APBO
Application
) from drop-down list. When you select
ICMP
or
Layer 7
Application
, the Local(LAN)/ Destination Port can not used.
If you want to block websites with specific URL address or using specific keywords, enter each URL or keyworks in the “
URL Blocking
” field and click
“
Add
” button to add in the URL Blocking list of each rule. Click “
Remove
” button can remove URL or keywords.
Rules :
control can be managed by a rule. Use the settings on this screen to establish an access policy.
Comment :
Enter a descriptive name for this rule for identifying purposes.
MAC Address :
Enter MAC address in valid MAC address
format(xx:xx:xx:xx:xx:xx) and click “
Add
” button to add in the MAC group of each rule. Click “
Remove
” button can remove MAC address in the group of each rule. There are
10
MAC address maximum allowed in each rule.
Local / Destination IP :
Specify local(LAN)/ destination IP addresses range required for this rule. If you specify local IP addresses range from 192.168.1.1 to 192.168.2.254. The matches a range of local IP addresses include every single IP address from the first to the last, so the example above includes everything from 192.168.1.1 to 192.168.2.254.
Protocol :
Select
Any
or specify protocol(
TCP
,
UDP
,
ICMP
,
URL Blocking
and
© Copyright 2012TRENDnet. All Rights Reserved.
Local Port :
Specify local port(LAN port) range required for this rule
Destination Port :
Specify destination port range required for this rule
Active :
Check
Enable
button to activate this rule, and
Disable
to deactivate.
Click “
Add
” button to add control rule to List. There are
10
rules maximum allowed in this Control List. All rules can be removed or edited on the List. Click
Reboot
button to activate your changes.
114
TRENDnet User’s Guide
QoS Setup
Quality of Service (QoS) refers to both a network's ability to deliver data with minimum delay, and the networking methods used to control the use of bandwidth. Without QoS, all traffic data is equally likely to be dropped when the network is congested. This can cause a reduction in network performance and make the network inadequate for timecritical application such as video-on-demand.
A classifier groups traffic into data flows according to specific criteria such as the source address, destination address, source port number, destination port number or incoming port number. For example, you can configure a classifier to select traffic from the same protocol port (such as FTP) to form a flow.
Shaping
WAN
Download: 1024K
Upload: 256K
Download: 512K
Upload: 256K
Download: 2048K
Upload: 1024K
192.168.1.254
LAN
NAT
Please click on
Advance -> QoS
and follow the below setting.
© Copyright 2012TRENDnet. All Rights Reserved.
Remote Bass
Station
WDS
TEW-676APBO
Down: 1024Kbps
Up: 512Kbps
SSID: Main_AP
WAN
NAT
WLAN
Down: 2048Kbps
Up: 1024Kbps
115
TRENDnet User’s Guide
Rules :
Use the rules to define the classifiers. After you define the rules, you can specify action to act upon the traffic that matches the rules
Comment :
Enter a descriptive name for this rule for identifying purposes.
MAC Address :
Enter MAC address in valid MAC address format(xx:xx:xx:xx:xx:xx) and click “
Add
” button to add in the MAC group of
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
each rule. Click “
Remove
” button can remove MAC address in the group of each rule. There are
10
MAC address maximum allowed in each rule.
Local / Destination IP :
Specify local(LAN)/ destination IP addresses range required for this rule. If you specify local IP addresses range from 192.168.1.1 to 192.168.2.254. The matches a range of local IP addresses include every single IP address from the first to the last, so the example above includes everything from 192.168.1.1 to 192.168.2.254.
DSCP Class
: Differentiated services code point, DSCP. Select Any or specify classify traffic from drop-down list.
The Per-Hop Behavior (PHB) is indicated by encoding a 6-bit value—called the
Differentiated Services Code Point (DSCP)—into the 8-bit Differentiated
Services (DS) field of the IP packet header. Below depicts class for DSCP.
BE :
Default
PHB, which is typically best-effort traffic
EF :
Expedited Forwarding
PHB, dedicated to low-loss, low-latency traffic
AF :
Assured Forwarding
PHB, which gives assurance of delivery under conditions. The AF behavior group defines four separate AF classes.
Within each class, packets are given a drop precedence (high, medium or low). The combination of classes and drop precedence yields twelve separate DSCP encodings from
AF11
through
AF43
(see table)
DROP Precedence
Low Drop
Class 1
AF11
Class 2
AF21
Class 3
AF31
Class 4
AF41
Medium Drop
AF12 AF22 AF32 AF42
High Drop
AF13 AF23 AF33 AF43
Protocol :
Select
Any
or specify protocol from drop-down list. When you select
ICMP
or
Layer 7 Application
, the Source/ Destination Port can not used.
Local Port :
Specify local port(LAN port) range required for this rule
Destination Port :
Specify destination port range required for this rule
Action :
After configuring rule, a policy rule ensures that a traffic flow gets the requested treatment in the network.
Remark DSCP :
Specify a new DSCP class, if you want to replace or remark the
DSCP
Bandwidth :
Click “
Enable
” to activate function, and click “
Disable
” to deactivate function
Upload / Download :
Specify the bandwidth in kilobit per second (Kbps). Enter
116
TRENDnet User’s Guide
a number between
8
to
8192
, default upload is
128
Kbps, download is
1024
Kbps.
Click “
Add
” button to add QoS rule to List. There are
10
rules maximum allowed in this
QoS List. All rules can be removed or edited on the List. Click
Reboot
button to activate your changes.
When you create rules on the QoS List, the previous rules have higher priority. . Below depict the examples for explaining priority of QoS setup.
Example 1 :
On this setting, the FTP has
1024
Kbps upload and
8196
Kbps download on
192.168.2.10
. The remaining IP address and other remaining protocol of IP address 192.168.2.10 only can use total bandwidth
512
Kbps bandwidth. Because rule 1's priority is higher than rule 2
Example 2 :
On this setting, the FTP has
512
Kbps upload and
512
Kbps download on
192.168.2.10
Because rule 1's priority is higher than rule 2
Resource Sharing
DMZ
DMZ is commonly work with the NAT functionality as an alternative of Virtual
Server(Port Forwarding
)
while wanting all ports of DMZ host visible to Internet users.
Virtual Server rules have precedence over the DMZ rule. In order to use a range of ports available to access to different internal hosts Virtual Server rules are needed.
Remote Bass
WDS
SSID:
192..2.x
DMZ
WAN
NAT
WLAN
Please click on
Advance -> DMZ
and follow the below setting.
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
DMZ :
By default, it’s
“
Disable
”.
Check
Enable
radial button to enable DMZ.
IP Address :
Enter IP address of DMZ host and only one DMZ host is supported.
Click
Save
button to save your changes. Click
Reboot
button to activate your changes.
Virtual Server (Port Forwarding)
“Virtual Server” can also referred to as “Port Forward” as well and used interchangeably.
Resources in the network can be exposed to the Internet users in a controlled manner including on-line gaming, video conferencing or others via Virtual Server setup. Don’t repeat ports’ usage to avoid confusion.
Suppose you want to assign ports 21-25 to one FTP, Telnet and SMTP server (A in the example), and port 80 to another (B in the example). You assign the LAN IP addresses and the ISP assigns the WAN IP address. The NAT network appears as a single host on the Internet.
Remote Bass
WDS
SSID:
B
WAN
A
NAT
WLAN
117
TRENDnet User’s Guide
Please click on
Advance -> Virtual Server
and follow the below setting.
TEW-676APBO
remaining connections to port TCP
20~80
will be redirected to port TCP
20~80
of
192.168.2.11
Example 2 :
All connections should be redirected to
192.168.2.12
while DMZ is enabled. Since Virtual Server rules have precedence over the DMZ rule all other connections to TCP port
20~80
will be redirected to port
20~80
of
192.168.2.11
.
The rule 2 won’t take effect.
System Status
This section breaks down into subsections of
System Overview
,
Associated Clients
Status
,
WDS Link Status
,
Extra Information
and
Event Log
.
Overview
Detailed information on
System
,
WAN Information
,
LAN Information
,
Wireless
Information
and
DHCP Server Status
can be reviewed via this page.
System :
Display the information of the system.
Virtual Server :
By Default, It’s “
Disable
”
.
Check
Enable
radial button to enable
Virtual Server.
Description :
Enter appropriate message for resource sharing via Virtual Server.
Private IP :
Enter corresponding IP address of internal resource to share.
Protocol Type :
Select appropriate sessions, TCP or UDP, from shared host via multiple private ports.
Private Port :
A port or a range of ports may be specified as
start:end
; i.e. port
20:80
Public Port :
A port or a range of ports may be specified as
start:end
; i.e. port 20:80
Click “
Add
” button to add Virtual Server rule to List. Total of maximum
20
rules are allowed in this List. All rules can be edited or removed from the List. Click
Reboot
button to activate your changes.
While creating multiple Virtual Server rules, the prior rules have higher priority. The
Virtual server rules have precedence over the DMZ one while both rules exist. Example 1 and 2 demonstrate proper usage of DMZ and Virtual Server rules.
Example 1 :
All connections should be redirected to
192.168.2.12
while DMZ is enabled. Since Virtual Server rules have precedence over the DMZ rule all connections to TCP port 22 will be directed to TCP port 22 of 192.168.2.10 and
© Copyright 2012TRENDnet. All Rights Reserved.
System Name :
The name of the system.
Operating Mode :
The mode currently in service.
Location :
The reminding note on the geographical location of the system.
Description :
The reminding note of the system.
Firmware Version :
The current firmware version installed.
Firmware Date :
The build time of the firmware installed.
Device Time :
The current time of the system.
System Up Time :
The time period that system has been in service since last reboot.
118
TRENDnet User’s Guide
WAN Information :
Display the information of the WAN interface.
TEW-676APBO
MAC Address :
The MAC address of the WAN port.
IP Address :
The IP address of the WAN port.
IP Netmask :
The IP netmask of the WAN port.
IP Gateway :
The gateway IP address of the WAN port.
Primary DNS :
The primary DNS server in service.
Secondary DNS :
The secondary DNS server in service.
Receive bytes :
The total received packets in bytes on the WAN port.
Receive packets :
The total received packets of the WAN port.
Transmit bytes :
The total transmitted packets in bytes of the WAN port.
Transmit packets :
The total transmitted packets of the WAN port.
LAN Information :
Display total received and transmitted statistics on the LAN interface.
The WAN port specified
Dynamic IP
, the Release and Renew button will be showup, click
Release
button to release IP address of WAN port,
Renew
button to renew
IP address through DHCP server.
The WAN port specified
PPPoE
or
PPTP
, and the
Connect
and
DisConnect
button will be show up. Click “
Connect
” button to assigned IP address from PPPoE or PPTP server, “
DisConnect
” button to release IP address of WAN port.
MAC Address :
The MAC address of the LAN port.
IP Address :
The IP address of the LAN port.
IP Netmask :
The IP netmask of the LAN port.
Receive bytes :
The total received packets in bytes on the LAN port.
Receive packets :
The total received packets of the LAN port.
Transmit bytes :
The total transmitted packets in bytes of the LAN port.
Transmit packets :
The total transmitted packets of the LAN port.
Wireless Information :
Display the detailed receive and transmit statistics of
Wireless interface.
Mode :
Supports Static, Dynamic, PPPoE and PPTP modes.
Reconnect Mode :
The current reconnect mode of the PPPoE or PPTP.
© Copyright 2012TRENDnet. All Rights Reserved.
119
TRENDnet User’s Guide
TEW-676APBO
Associated Clients
It displays ESSID, on/off Status, Security Type, total number of wireless clients associated with all Virtual AP.
MAC Address :
The MAC address of the Wireless Port.
Channel :
The current channel on the Wireless port.
Rate :
The current Bit Rate on the Wireless port.
Receive bytes :
The total received packets in bytes on the Wireless port.
Receive packets :
The total received packets on the Wireless port.
Transmit bytes :
The total transmitted packets in bytes on the Wireless port.
Transmit packets :
The total transmitted packets on the Wireless port.
DHCP Server Status :
Users could retrieve DHCP server and DHCP clients’ IP/MAC address via this field.
IP Address :
IP addresses to LAN devices by DHCP server.
MAC Address :
MAC addresses of LAN devices.
Expired In :
Shows how long the leased IP address will expire.
© Copyright 2012TRENDnet. All Rights Reserved.
VAP Information :
Highlights key VAP information.
VAP :
Available VAP from Primary AP to VAP6.
ESSID :
Display name of ESSID for each VAP.
MAC Address :
Display MAC address for each VAP.
Status :
On/Off
Security Type :
Display chosen security type; WEP, WPA/WPA2-PSK,
WPA/WPA2-Enterprise.
Clients :
Display total number of wireless connections for each VAP.
VAP Clients :
Display all associated clients on each Virtual AP.
MAC Address :
MAC address of associated clients
Signal Strength ANT0/ANT1 :
Signal Strength of from associated clients.
Bandwidth :
Channel bandwidth of from associated clients
Idle Time :
Last inactive time period in seconds for a wireless connection.
Connect Time :
Total connection time period in seconds for a wireless
connection.
Disconnect :
Click “
Delete
” button to manually disconnect a wireless client in a
Virtual AP.
120
TRENDnet User’s Guide
Show WDS Link
Peers MAC Address, antenna 0/1 received signal strength, phy mode and channel bandwidth for each WDS are available.
TEW-676APBO
Extra Info
Users could pull out information such as Route table, ARP table, MAC table, Bridge table or STP available in the drop-down list from system. The “Refresh” button is used to retrieve latest table information.
MAC Address :
Display MAC address of WDS peer.
Signal Strength ANT0/ANT1 :
Indicate the signal strength of the respective WDS links.
Phy Mode :
Indicate the phy mode of the respective WDS linked.
BandWidth :
Indicate the channel bandwidth of the respective WDS linked.
MCS :
Indicate the MCS of the respective WDS linked.
SGI :
Indicate the SGI (Short Guard Interval) of the respective WDS linked. “1” indicate the Short Guard Interval, “0” indicate the Long Guard Interval.
© Copyright 2012TRENDnet. All Rights Reserved.
121
TRENDnet User’s Guide
Netstat Information :
Select “
NetStatus Information
” on the drop-down list, the connection track list should show-up, the list can be updated using the Refresh button.
NetStatus will show all connection track on the system, the information include
Protocol
,
Live Time
,
Status
,
Source/Destination IP address
and
Port
.
Route table information :
Select “
Route table information
” on the drop-down list to display route table.
TEW-676APBO could be used as a L2 or L3 device. It doesn’t support dynamic routing protocols such as RIP or OSPF. Static routes to specific hosts, networks or default gateway are set up automatically according to the IP configuration of system's interfaces. When used as a L2 device, it could switch packets and, as L3 device, it’s capable of being a gateway to route packets inward and outward.
ARP table Information :
Select “
ARP Table Information
” on the drop-down list to display ARP table.
ARP associates each IP address to a unique hardware address (MAC) of a device. It is important to have a unique IP address as final destination to switch packets to.
TEW-676APBO
Bridge MAC information :
Select “
Bridge MACs Information
” on the drop-down list to display MAC table.
This table displays local MAC addresses associated with wired or wireless interfaces, but also remember non-local MAC addresses learned from wired or wireless interfaces.
Ageing timers will be reset when existing MAC addresses in table are learned again or added when new MAC addresses are seen from wired or wireless interfaces as well. When time runs out for a particular entry, it will be pruned from the table. In that situation, switching packet to that particular MAC address will be discontinued.
Bridge STP Information :
Select “
Bridge STP Information
” on the drop-down list to display a list of bridge STP information.
Bridge table information :
Select “
Bridge Table information
” on the drop-down list to display bridge table.
Bridge table will show Bridge ID and STP's Status on the each Ethernet bridge and its attached interfaces, the Bridge Port should be attached to some interfaces e.g. ra0 ~ra6 and wds0~wds3).
© Copyright 2012TRENDnet. All Rights Reserved.
122
TRENDnet User’s Guide
QoS Plot
The QoS Plot show graphs which continuously represents the current data traffic on each QoS rule. The chart scale and throughput dimension (bps, Kbps, Mbps) changes dynamically according to the mean throughput value. The statistics is updated automatically every 5 seconds. The throughput statistics of QoS can be updated manually using the
Refresh
button.
TEW-676APBO
System Management
Configure Management
Administrator could specify geographical location of the system via instructions in this page. Administrator could also enter new Root and Admin passwords and allow multiple login methods.
Please click
System -> Management
and follow the below settings.
Event Log
The Event log displays system events when system is up and running. Also, it becomes very useful as a troubleshooting tool when issues are experienced in system.
Time :
The date and time when the event occurred.
Facility :
It helps users to identify source of events such “System” or “User”
Severity :
Severity level that a specific event is associated such as “info”, “error”,
“warning”, etc.
Message :
Description of the event.
Click
Refresh
button to renew the log, or click
Clear
button to clear all the record.
© Copyright 2012TRENDnet. All Rights Reserved.
123
TRENDnet User’s Guide
System Information
System Name :
Enter a desired name or use the default one.
Description :
Provide description of the system.
Location :
Enter geographical location information of the system. It helps administrator to locate the system easier.
The system supports
two
management accounts, root and admin. The network manager is assigned with full administrative privileges, when logging in as
root
user, to manage the system in all aspects. While logging in as an
admin
user, only subset of privileges is granted such as basic maintenance. For example, root user can change passwords for both root and admin account, and admin user can only manage its own. For more information about covered privileges for these two accounts, please refer to
Appendix
D. Network manager Privileges
.
Root Password :
Log in as a root user and is allowed to change its own, plus admin user’s password.
New Password :
Enter a new password if desired
Check New Password :
Enter the same new password again to check.
Admin Password :
Log in as a admin user and is allowed to change its own,
New Password :
Enter a new password if desired
Check New Password :
Enter the same new password again to check.
Admin Login Methods :
Only
root
user can enable or disable system login methods and change services port.
Enable HTTP :
Check to select HTTP Service.
HTTP Port :
The default is 80 and the range is between 1 ~ 65535.
Enable HTTPS :
Check to select HTTPS Service
HTTPS Port :
The default is 443 and the range is between 1 ~ 65535.
Enable Telnet :
Check to select Telnet Service
Telnet Port :
The default is 23 and the range is between 1 ~ 65535.
Enable SSH :
Check to select SSH Service
SSH Port :
Please The default is 22 and the range is between 1 ~ 65535.
Ping Watchdog :
The ping watchdog sets the TEW-676APBO Device to continuously
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
ping a user defined IP address (it can be the internet gateway for example). If it is unable to ping under the user defined constraints, the TEW-676APBO device will automatically reboot. This option creates a kind of "fail-proof" mechanism.
Ping Watchdog is dedicated for continuous monitoring of the particular connection to remote host using the Ping tool. The Ping works by sending ICMP “echo request” packets to the target host and listening for ICMP “echo response” replies. If the defined number of replies is not received, the tool reboots the device.
Enable Ping Watchdog :
control will enable Ping Watchdog Tool.
IP Address To Ping :
specify an IP address of the target host which will be monitored by Ping Watchdog Tool.
Ping Interval :
specify time interval (in seconds) between the ICMP “echo requests” are sent by the Ping Watchdog Tool. Default is
300
seconds.
Startup Delay :
specify initial time delay (in seconds) until first ICMP “echo requests” are sent by the Ping Watchdog Tool. The value of Startup Delay should be at least
60
seconds as the network interface and wireless
connection initialization takes considerable amount of time if the device is rebooted. Default is
300
seconds.
Failure Count To Reboot :
specify the number of ICMP “echo response” replies. If the specified number of ICMP “echo response” packets is not received continuously, the Ping Watchdog Tool will reboot the device.
Click
Save
button to save your changes. Click
Reboot
button to activate your changes
Without a valid certificate, users may encounter the following problem in IE7 when they try to access system's WMI ( https://192.168.2.254
). There will be a “Certificate Error”, because the browser treats system as an illegal website.
124
TRENDnet User’s Guide
TEW-676APBO
Configure System Time
System time can be configured via this page, and manual setting or via a NTP server is supported.
Please click on
System -> Time Server
and follow the below setting.
Click “
Continue to this website
” to access the system's WMI. The system's Overview page will appear.
© Copyright 2012TRENDnet. All Rights Reserved.
Local Time :
Display the current system time.
NTP Client :
To synchronize the system time with NTP server.
Enable :
Check to select NTP client.
Default NTP Server :
Select the NTP Server from the drop-down list.
Time Zone :
Select a desired time zone from the drop-down list.
Daylight saving time :
Enable or disable Daylight saving.
Click
Save
button to save your changes. Click
Reboot
button to activate your changes
125
TRENDnet User’s Guide
Configure UPnP
Universal Plug and Play(UPnP) is an architecture to enable pervasive peer-to-peer network connectivity between PCs, intelligent devices and appliances when UPnP is supported. UPnP works on TCP/IP network to enable UPnP devices to connect and access to each other, very well adopted in home networking environment.
TEW-676APBO
Configure SNMP Setup
SNMP is an application-layer protocol that provides a message format for communication between SNMP managers and agents. By enabling SNMP function, the administrator can obtain the system information remotely.
Please click on
System -> SNMP Setup
and follow the below setting.
UPnP :
By default, it’s “
Disable
”. Select “
Enable
” or “
Disable”
of UPnP Service.
Click
Save
button to save changes and click
Reboot
button to activate changes
For UPnP to work in Windows XP, the “TEW-676APBO” must be available in “
My
Network Places
”
, as shown here: (your specific model may vary)
TEW-675APBO/TEW-
676APBO
If these devices are not available, you should verify that the correct components and services are loaded in Windows XP. Please refer to
Appendix E. Using UPnP on Windows
XP
© Copyright 2012TRENDnet. All Rights Reserved.
SNMP v2c Enable:
Check to enable SNMP v2c.
ro community :
Set a community string to authorize read-only access.
rw community :
Set a community string to authorize read/write access.
SNMP v3 Enable:
Check to enable SNMP v3.
SNMPv3 supports the highest level SNMP security.
126
TRENDnet User’s Guide
SNMP ro user :
Set a community string to authorize read-only access.
SNMP ro password :
Set a password to authorize read-only access.
SNMP rw user :
Set a community string to authorize read/write access.
SNMP rw password :
Set a password to authorize read/write access.
SNMP Trap :
Events such as cold start, interface up & down, and association & disassociation will report to an assigned server.
TEW-676APBO
Backup / Restore and Reset to Factory
Backup current configuration, restore prior configuration or reset back to factory default configuration can be executed via this page.
Please click on
Utilities -> Profile Setting
and follow the below setting.
Save Settings to PC :
Click
Save
button to save the current configuration to a local disk.
Community :
Set a community string required by the remote host computer that will receive trap messages or notices send by the system.
IP :
Enter the IP addresses of the remote hosts to receive trap messages.
Click
Save
button to save changes and click
Reboot
button to activate.
© Copyright 2012TRENDnet. All Rights Reserved.
Load Settings from PC :
Click
Browse
button to locate a configuration file to restore, and then click
Upload
button to upload.
Reset To Factory Default :
Click
Default
button to reset back to the factory default settings and expect
Successful
loading message
.
Then, click
Reboot
button to activate.
127
TRENDnet User’s Guide
Firmware Upgrade
Firmware is the main software image that system needs to respond to requests and to manage real time operations. Firmware upgrades are sometimes required to include new features or bugs fix. It takes around
2 minutes
to upgrade due to complexity of firmware. To upgrade system firmware, click
Browse
button to locate the new firmware, and then click
Upgrade
button to upgrade.
TEW-676APBO
Network Utility
The administrator can diagnose network connectivity via the PING and TRACEROUTE utility.
Please click on
Utilities -> Network Utility
and follow the below setting
© Copyright 2012TRENDnet. All Rights Reserved.
Ping :
This utility will help ping other devices on the network to verify connectivity.
Ping utility, using ICMP packets, detects connectivity and latency between two network nodes. As result of that, packet loss and latency time are available in the
Result
field while running the PING test.
Destination IP/Domain :
Enter desired domain name, i.e. www.google.com
, or
IP address of the destination, and click
ping
button to proceed. The ping result will be shown in the
Result
field.
128
TRENDnet User’s Guide
Count :
By default, it’s 5 and the range is from 1 to 50. It indicates number of connectivity test.
Traceroute :
Allows tracing the hops from the TEW-676APBO device to a selected outgoing IP address. It should be used for the finding the route taken by ICMP packets across the network to the destination host. The test is started using the
Start
button, click
Stop button to stopped test
Destination Host :
Specifies the Destination Host for the finding the route
taken by ICMP packets across the network.
MAX Hop :
Specifies the maximum number of hops( max time-to-live value) traceroute will probe.
Reboot
This function allows user to restart system with existing or most current settings when changes are made. Click
Reboot
button to proceed and take around three minutes to complete.
Mounting bracket installation
Package contents
Install mounting triangle
A reminder will be available for remaining time to complete. If power cycle is necessary, please wait till completion of the reboot process.
TEW-676APBO
© Copyright 2012TRENDnet. All Rights Reserved.
Align the mounting triangle to the back of the access point. Securely tighten the mounting triangle by using the M5x10 screws and washers.
129
TRENDnet User’s Guide
Wall mount bracket Installing brackets
TEW-676APBO
Position the provided mounting bracket to the desired location and mount as shown in the above image using the provided wood screws and plugs.
Pole mount bracket
Align the access point with the mount triangle installed with either the wall or pole mount. Using the provided M6x12 bolts tighten both mounts together as shown in the above image.
Insert and fasten the provided U-clamps to the pole as shown in the above image using the provided screw washers, spring washers and nuts.
© Copyright 2012TRENDnet. All Rights Reserved.
130
TRENDnet User’s Guide
Appendix
WEB GUI Valid Characters
Block Field
LAN
IP Address
IP Netmask
IP Gateway
Primary DNS
Secondary DNS
Hostname
WAN
Manual MAC Address
IP Address
IP Netmask
IP Gateway
© Copyright 2012TRENDnet. All Rights Reserved.
Appendix
Valid Characters
IP Format; 1-254
128.0.0.0 ~ 255.255.255.252
IP Format; 1-254
IP Format; 1-254
IP Format; 1-254
Length : 32
0-9, A-Z, a-z
~ ! @ # $ % ^ * ( ) _ + - { } | : < > ? [ ] / ; ` , . =
12 HEX chars
IP Format; 1-254
128.0.0.0 ~ 255.255.255.252
IP Format; 1-254
131
TRENDnet User’s Guide
Hostname
DDNS
User name
Password
MTU
Idle Time
Primary DNS
Secondary DNS
Hostname
User Name
Password
© Copyright 2012TRENDnet. All Rights Reserved.
Length : 32
0-9, A-Z, a-z
~ ! @ # $ % ^ * ( ) _ + - { } | : < > ? [ ] / ; ` , . =
Length : 32
0-9, A-Z, a-z
~ ! @ # $ % ^ * ( ) _ + - { } | : < > ? [ ] / ; ` , . =
Appendix
576 ~ 1492 for PPPoE; 1400 ~ 1460 for PPTP
0 ~ 60 minutes
IP Format; 1-254
IP Format; 1-254
Length : 32
0-9, A-Z, a-z
@ - _ .
Length : 32
0-9, A-Z, a-z
~ ! @ # $ % ^ * ( ) _ + - { } | : < > ? [ ] / ; ` , . =
132
TRENDnet User’s Guide
DHCP Server
Start IP
End IP
DNS1 IP
DNS2 IP
WINS IP
Domain
Block
Management
Lease Time
Field
System Name/ Location
Description
© Copyright 2012TRENDnet. All Rights Reserved.
IP Format; 1-254
IP Format; 1-254
IP Format; 1-254
IP Format; 1-254
IP Format; 1-254
Length : 32
0-9, A-Z, a-z
~ ! @ # $ % ^ * ( ) _ + - { } | : < > ? [ ] / ; ` , . =
Appendix
600 ~ 99999999
Valid Characters
Length : 32
0-9, A-Z, a-z
Space
~ ! @ # $ % ^ * ( ) _ + - { } | : < > ? [ ] / ; ` , . =
32 chars
133
TRENDnet User’s Guide
Password
SNMP
HTTP/ HTTPS Port
Telnet/ SSH Port
RO/RW community
RO/RW user
RO/RW password
Community
© Copyright 2012TRENDnet. All Rights Reserved.
Length : 4 ~ 30
0-9, A-Z, a-z
~ ! @ # $ % ^ * ( ) _ + - { } | : < > ? [ ] / ; ` , . =
Appendix
1 ~ 65535
1 ~ 65535
Length : 32
0-9, A-Z, a-z
~ ! @ # $ % ^ * ( ) _ + - { } | : < > ? [ ] ; ` , . =
Length : 31
0-9, A-Z, a-z
~ ! @ # $ % ^ * ( ) _ + - { } | : < > ? [ ] ; ` , . =
Length : 8 ~ 32
0-9, A-Z, a-z
~ ! @ # $ % ^ * ( ) _ + - { } | : < > ? [ ] ; ` , . =
Length : 32
0-9, A-Z, a-z
~ ! @ # $ % ^ * ( ) _ + - { } | : < > ? [ ] ; ` , . =
134
TRENDnet User’s Guide
General Setup
Wireless Profile
IP
Tx Power
Profile Name
ESSID
Advanced Setup
Block
WEP Key
Pre-shared Key
Beacon Interval
Date Beacon Rate
Fragment Threshold
RTS Threshold
Field
© Copyright 2012TRENDnet. All Rights Reserved.
IP Format; 1-254
1-100 %
32 chars
Length : 31
Space
0-9, A-Z, a-z
~ ! @ # $ % ^ * ( ) _ + - { } | : < > ? [ ] / ; ` , . =
Appendix
10, 26 HEX chars or 5, 13 ASCII chars
8 ~ 63 ASCII chars; 64 HEX chars
20 ~ 1024
1 ~ 255
256 ~ 2346
1 ~ 2347
Valid Characters
135
TRENDnet User’s Guide
Virtual AP Setup
ESSID
WDS Setup
Maximum Clients
VLAN ID
WEP Key
Group Key Update Period
PMK Cache Period
Pre-Shared Key
Radius Server IP
Radius Port
Shared Secret
Session Timeout
WEP Key
© Copyright 2012TRENDnet. All Rights Reserved.
Length : 31
Space
0-9, A-Z, a-z
~ ! @ # $ % ^ * ( ) _ + - { } | : < > ? [ ] / ; ` , . =
Appendix
1 ~ 32
1 ~ 4094
10, 26 HEX chars or 5, 13 ASCII chars
>=60 seconds
> 0 minute
8 ~ 63 ASCII chars; 64 HEX chars
IP Format; 1-254
1 ~ 65535
8 ~ 64 characters
>= 60 seconds; 0 is disable
10, 26 HEX chars or 5, 13 ASCII chars
136
TRENDnet User’s Guide
IP Filter
TKIP Key
AES Key
Peer's MAC Address
Description
Source Address
MAC Filter
Virtual Server
DMZ
QoS/
Source Mask
Source Port
Destination Address
Destination Mask
Destination Port
MAC address
Description
Private IP
Private/ Public Port
IP Address
Comment
© Copyright 2012TRENDnet. All Rights Reserved.
8 ~ 63 ASCII chars; 64 HEX chars
8 ~ 63 ASCII chars; 64 HEX chars
12 HEX chars
32 chars
IP Format; 1-254
0 ~ 32
1 ~ 65535
IP Format; 1-254
0 ~ 32
1 ~ 65535
MAC Format; 12 HEX chars
32 chars
IP Format; 1-254
1 ~ 65535
IP Format; 1-254
32 chars
Appendix
137
TRENDnet User’s Guide
Parental Control
MAC Address
Local/ Destination IP
Local/ Destination Port
Upload & Download
© Copyright 2012TRENDnet. All Rights Reserved.
MAC Format; 12 HEX chars
IP Format; 1-254
1 ~ 65535
Appendix
8 ~ 8192 digital number
138
TRENDnet User’s Guide
MCS Data Rate
The table below shows the relationships between the variables that allow for the maximum data rate
Note :
When MCS=32, only Short Guard Interval option is supported, Channel Bandwidth=20 is not supported. If Channel Bandwidth=40, the HT duplicate 6Mbps.
When MCS=0~7(One Tx Stream), Guard Interval and Channel Bandwidth are supported
When MCS=8~15(Two Tx Stream), Guard Interval and Channel Bandwidth are supported
Data Rate (Mb/s)
MCS Index Modulation
Channel Bandwidth = 20 Channel Bandwidth = 40
9
10
11
12
13
14
15
6
7
4
5
8
0
1
2
3
QPSK
QPSK
16-QAM
16-QAM
64-QAM
64-QAM
64-QAM
BPSK
QPSK
QPSK
16-QAM
16-QAM
64-QAM
64-QAM
64-QAM
BPSK
Long Guard Interval
6.5
13.0
19.5
26.0
26.0
39.0
52.0
78.0
104.0
39.0
52.0
58.5
65.0
13.0
117.0
130.0
Short Guard Interval Long Guard Interval Short Guard Interval
7.2 13.5 15.0
14.4
21.7
28.9
27.0
40.5
54.0
30.0
45.0
60.0
28.9
43.3
57.8
86.7
115.6
43.3
57.8
65.0
72.2
14.4
130.0
114.4
81.0
108.0
121.5
135.0
27.0
54.0
81.0
108.0
162.0
216.0
243.0
270.0
60.0
90.0
120.0
180.0
240.0
90.0
120.0
135.0
157.5
30.0
270.0
300.0
© Copyright 2012TRENDnet. All Rights Reserved.
Appendix
139
TRENDnet User’s Guide
System Manager Privileges
There are two system management accounts for maintaining the system; namely, the
root
and
admin
accounts are with different levels of privileges. The root manager account is empowered with full privilege to Read & Write while the admin manager account is Read only.
The following table display CPE admin account’s privileges.
Main Menu Sub Menu Group Admin Privilege
Operating
WAN
Read
Read
System
Wireless
Advance
LAN
DDNS
Time Server
UPNP
SNMP
General
Advanced
Site Survey
DMZ
IP Filter
MAC Filter
Virtual Server
Parental l
Read & Write
Read & Write
Read & Write
Read & Write
Read
Read
Read
Read
Read
Read
Read
Read
Read
© Copyright 2012TRENDnet. All Rights Reserved.
Administrator
QoS
Management
System
Root
Admin
Login
Ping
Profile
Settings
System
Network
Backup
Settings
Restore
Reset f l
TEW-676APBO
Read
Read
Read
Read & Write
Read
Read
Read & Write
Read
Read
Read
Read & Write
Read & Write
140
TRENDnet User’s Guide
Windows TCP/IP Settings
Windows XP
1.
Click
Start -> Settings -> Control Panel
, and then “
Control Panel
” window appears. Click on “
Network Connections
”, and then “
Network Connections
” window appears.
TEW-676APBO
3.
In “
Local Area Connection Properties
” window, select “
Internet Protocol
(TCP/IP)
” and click on
Properties
button.
2.
Click right on “
Local Area Connection
”, and select
Properties
.
© Copyright 2012TRENDnet. All Rights Reserved.
4.
Select “Use the following IP address”, and type in
IP address : 192.168.2.100
Subnet mask : 255.255.255.0
141
TRENDnet User’s Guide
TEW-676APBO
Enabling UPnP in Windows XP
1.
Open the “
Add/Remove Programs
”
control panel, and then click on “
Add/Remove
Windows Components
”
in the sidebar. Scroll down and find “
Networking Services
”
, highlight it, and then click
Details
.
2.
In the “
Networking Services
” window, ensure that the “
Internet Gateway Device
”
and “
UPnP User Interface
”
options are checked. If they are not, check it to enable them, as shown below, and click OK to continue.
© Copyright 2012TRENDnet. All Rights Reserved.
142
TRENDnet User’s Guide
3.
Next, in the “
Control panel
”, open the “
Administrative Tools
”
and then open
“
Services
”
. Scroll down until you find the “
SSDP Discovery Interface
”
. If the Status is not
Started
, double-click on
SSDP Discovery Interface
to open the service properties. Change the startup type to
Automatic
, then close the properties. Now, right-click on
SSDP Discovery Services
, and choose
Start
from the pop-up menu. The
SSDP Discovery Service will then be running and start each time you boot.
4.
After enabling UPnP and starting the SSDP Discovery Service, it may take few minutes for the “TEW-675APBO/ TEW-676APBO” to be discovered and appear in your “
My Network Places
”
.
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
143
TRENDnet User’s Guide
Specification
Hardware
Standards
LED Indicator
Antenna
PoE
Dimension (L x W x H)
Weight
Power Consumption
Management
Wind Speed Support
Waterproof
Temperature
Wired: IEEE 802.3u (100Base-TX)
Wireless: IEEE 802.11a/n (5 GHz)
Power, LAN, WLAN (wireless activity)
12dBi patch antenna (polarization: V30
°
, H30
°
)
1 x 10/100Mbps RJ-45 PoE port, Passive only (non-
802.3af compliant)
215 x 122 x 66 mm ( 8.5 x 4.8 x 2.6 in)
1kg (2.2lbs)
15 Watts (max.)
Web browser (HTTP/HTTPS), SNMP (v2c and 3),
Telnet, SSH
210 km/hr
IP66/67 compliant
Operating: -20° ~ 60°C (-4°F ~ 140°F)
Storage: 0° ~ 60°C (32°F ~ 140°F)
Max. 95% (non-condensing)
PoE power injector DC output: 48VDC, 0.4A
FCC
Humidity
Power
Certifications
Wireless
Frequency
Modes
5.725 ~ 5.845 GHz
Router, Access Point + WDS, WDS, CPE, Client Bridge
+ Repeater, CPE + Access Point
7
Virtual Access Points
Associated Clients (max)
224 (AP Mode), 32 (Repeater Mode)
*Coverage
Modulation Technique
5km line-of-sight
802.11a: OFDM with BPSK, QPSK, QAM and 64QAM
802.11n: BPSK, QPSK, 16-QAM, 64-QAM
Data Rate (auto-fallback)
802.11a: up to 54Mbps
Security
802.11a/n: up to 300Mbps
64/128/152-bit WEP, WPA /WPA2-PSK, WPA/WPA2-
RADIUS for AP/CPE mode, WEP/WPA2-PSK for WDS mode
Output Power
Receiving Sensitivity
MAC filter (20 entries) and IP filter (20 entries)
Up to 26dBm (FCC)
802.11a: -91dBm (typical) @ 6Mpbs
© Copyright 2012TRENDnet. All Rights Reserved.
Channels
TEW-676APBO
802.11a/n: -68dBm (typical) @ 300Mbps
FCC: 149,153,157,161,165
144
TRENDnet User’s Guide
Limited Warranty
TRENDnet warrants its products against defects in material and workmanship, under normal use and service, for the following lengths of time from the date of purchase.
TEW-676APBO – 3 Years Warranty
AC/DC Power Adapter, Cooling Fan, and Power Supply carry 1 year warranty.
If a product does not operate as warranted during the applicable warranty period,
TRENDnet shall reserve the right, at its expense, to repair or replace the defective product or part and deliver an equivalent product or part to the customer. The repair/replacement unit’s warranty continues from the original date of purchase. All products that are replaced become the property of TRENDnet. Replacement products may be new or reconditioned. TRENDnet does not issue refunds or credit. Please contact the point-of-purchase for their return policies.
TRENDnet shall not be responsible for any software, firmware, information, or memory data of customer contained in, stored on, or integrated with any products returned to
TRENDnet pursuant to any warranty.
There are no user serviceable parts inside the product. Do not remove or attempt to service the product by any unauthorized service center. This warranty is voided if (i) the product has been modified or repaired by any unauthorized service center, (ii) the product was subject to accident, abuse, or improper use (iii) the product was subject to conditions more severe than those specified in the manual.
Warranty service may be obtained by contacting TRENDnet within the applicable warranty period and providing a copy of the dated proof of the purchase. Upon proper submission of required documentation a Return Material Authorization (RMA) number will be issued. An RMA number is required in order to initiate warranty service support for all TRENDnet products. Products that are sent to TRENDnet for RMA service must have the RMA number marked on the outside of return packages and sent to TRENDnet prepaid, insured and packaged appropriately for safe shipment. Customers shipping from outside of the USA and Canada are responsible for return shipping fees. Customers shipping from outside of the USA are responsible for custom charges, including but not limited to, duty, tax, and other fees.
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
WARRANTIES EXCLUSIVE
: IF THE TRENDNET PRODUCT DOES NOT OPERATE AS
WARRANTED ABOVE, THE CUSTOMER’S SOLE REMEDY SHALL BE, AT TRENDNET’S
OPTION, REPAIR OR REPLACE. THE FOREGOING WARRANTIES AND REMEDIES ARE
EXCLUSIVE AND ARE IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED,
EITHER IN FACT OR BY OPERATION OF LAW, STATUTORY OR OTHERWISE, INCLUDING
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
TRENDNET NEITHER ASSUMES NOR AUTHORIZES ANY OTHER PERSON TO ASSUME FOR
IT ANY OTHER LIABILITY IN CONNECTION WITH THE SALE, INSTALLATION MAINTENANCE
OR USE OF TRENDNET’S PRODUCTS.
TRENDNET SHALL NOT BE LIABLE UNDER THIS WARRANTY IF ITS TESTING AND
EXAMINATION DISCLOSE THAT THE ALLEGED DEFECT IN THE PRODUCT DOES NOT EXIST
OR WAS CAUSED BY CUSTOMER’S OR ANY THIRD PERSON’S MISUSE, NEGLECT,
IMPROPER INSTALLATION OR TESTING, UNAUTHORIZED ATTEMPTS TO REPAIR OR
MODIFY, OR ANY OTHER CAUSE BEYOND THE RANGE OF THE INTENDED USE, OR BY
ACCIDENT, FIRE, LIGHTNING, OR OTHER HAZARD.
LIMITATION OF LIABILITY: TO THE FULL EXTENT ALLOWED BY LAW TRENDNET ALSO
EXCLUDES FOR ITSELF AND ITS SUPPLIERS ANY LIABILITY, WHETHER BASED IN
CONTRACT OR TORT (INCLUDING NEGLIGENCE), FOR INCIDENTAL, CONSEQUENTIAL,
INDIRECT, SPECIAL, OR PUNITIVE DAMAGES OF ANY KIND, OR FOR LOSS OF REVENUE OR
PROFITS, LOSS OF BUSINESS, LOSS OF INFORMATION OR DATE, OR OTHER FINANCIAL
LOSS ARISING OUT OF OR IN CONNECTION WITH THE SALE, INSTALLATION,
MAINTENANCE, USE, PERFORMANCE, FAILURE, OR INTERRUPTION OF THE POSSIBILITY
OF SUCH DAMAGES, AND LIMITS ITS LIABILITY TO REPAIR, REPLACEMENT, OR REFUND
OF THE PURCHASE PRICE PAID, AT TRENDNET’S OPTION. THIS DISCLAIMER OF LIABILITY
FOR DAMAGES WILL NOT BE AFFECTED IF ANY REMEDY PROVIDED HEREIN SHALL FAIL
OF ITS ESSENTIAL PURPOSE.
Governing Law
: This Limited Warranty shall be governed by the laws of the state of
California.
Some TRENDnet products include software code written by third party developers.
These codes are subject to the GNU General Public License ("GPL") or GNU Lesser
General Public License ("LGPL").
Go to http://www.trendnet.com/gpl or http://www.trendnet.com
Download section and look for the desired TRENDnet product to access to the GPL Code or LGPL Code.
145
TRENDnet User’s Guide
These codes are distributed WITHOUT WARRANTY and are subject to the copyrights of the developers. TRENDnet does not provide technical support for these codes. Please go to http://www.gnu.org/licenses/gpl.txt
or http://www.gnu.org/licenses/lgpl.txt
for specific terms of each license.
PWP05202009v2
© Copyright 2012TRENDnet. All Rights Reserved.
TEW-676APBO
146
Appendix
© Copyright 2012TRENDnet. All Rights Reserved.
147
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project