Advantech UniGateway EH-2101W User manual

Advantech UniGateway EH-2101W User manual
EH-2101W
Broadband Wireless Gateway
WiFi Compliant Wireless Access Point
Broadband Internet Access
4-Port Switching Hub
Dial-in RAS
Print Server
User Manual
i
TABLE OF CONTENTS
CHAPTER 1 INTRODUCTION ............................................................................................. 1
UniGateway EH-2101W Features.................................................................................... 1
Package Contents .............................................................................................................. 4
Physical Details.................................................................................................................. 4
CHAPTER 2 INSTALLATION............................................................................................... 8
Requirements..................................................................................................................... 8
Procedure ........................................................................................................................... 8
CHAPTER 3 SETUP .............................................................................................................. 10
Overview .......................................................................................................................... 10
Configuration Program .................................................................................................. 11
Setup Wizard ................................................................................................................... 13
LAN Screen...................................................................................................................... 15
Wireless Screen................................................................................................................ 17
Password Screen .............................................................................................................. 20
CHAPTER 4 PC CONFIGURATION .................................................................................. 21
Overview .......................................................................................................................... 21
Windows Clients .............................................................................................................. 21
Printer Setup for Windows............................................................................................. 29
Macintosh Clients............................................................................................................ 35
Linux Clients.................................................................................................................... 36
Other Unix Systems......................................................................................................... 37
CHAPTER 5 OPERATION AND STATUS ......................................................................... 38
Operation ......................................................................................................................... 38
Status Screen.................................................................................................................... 38
Connection Status - PPPoE ............................................................................................ 41
Connection Status - PPTP .............................................................................................. 43
Connection Details - Fixed/Dynamic IP Address ......................................................... 45
Connection Status - Serial Port...................................................................................... 47
CHAPTER 6 ADVANCED FEATURES .............................................................................. 50
Overview .......................................................................................................................... 50
Advanced Menu Screen .................................................................................................. 50
Advanced Internet Screen .............................................................................................. 51
Conferencing & Telephony............................................................................................. 51
Special Applications ........................................................................................................ 52
DMZ ................................................................................................................................. 54
URL Filter........................................................................................................................ 54
Virtual Servers................................................................................................................. 56
Dynamic DNS (Domain Name Server) .......................................................................... 59
Remote Management ...................................................................................................... 61
CHAPTER 7 DIAL-IN ........................................................................................................... 62
Overview .......................................................................................................................... 62
Dial-in Screen................................................................................................................... 62
Client PCs - Using Dial-in............................................................................................... 68
CHAPTER 8 ADVANCED CONFIGURATION................................................................. 70
Overview .......................................................................................................................... 70
PC Database Screen ........................................................................................................ 71
i
Options ............................................................................................................................. 73
Printer Port...................................................................................................................... 75
MAC Address .................................................................................................................. 76
Routing ............................................................................................................................. 77
APPENDIX A TROUBLESHOOTING ................................................................................ 81
Overview .......................................................................................................................... 81
General Problems ............................................................................................................ 81
Internet Access................................................................................................................. 81
Wireless Access ................................................................................................................ 82
Printing............................................................................................................................. 83
Dial-in Access................................................................................................................... 86
APPENDIX B ABOUT WIRELESS LANS.......................................................................... 88
Modes ............................................................................................................................... 88
BSS/ESS............................................................................................................................ 88
Channels........................................................................................................................... 89
WEP.................................................................................................................................. 89
Wireless LAN Configuration.......................................................................................... 89
APPENDIX C AT COMMANDS .......................................................................................... 90
AT Commands................................................................................................................. 90
Standard AT Commands................................................................................................ 92
APPENDIX D SPECIFICATIONS ....................................................................................... 95
Broadband Wireless Gateway........................................................................................ 95
PCMCIA Wireless Card ................................................................................................. 96
P/N: 9560H800BP
Copyright  2002. All Rights Reserved.
Document Version: 1.0
All trademarks and trade names are the properties of their respective owners.
ii
Chapter 1
Introduction
1
This Chapter provides an overview of the UniGateway EH-2101W's features
and capabilities.
Congratulations on the purchase of your new UniGateway EH-2101W. The UniGateway EH2101W is a multi-function device providing the following services:
•
Wireless LAN Access Point (base station) for equipment compliant with the
•
Shared Broadband Internet Access via an DSL or Cable modem on the WAN
•
4-Port Switching Hub for 10BaseT or 100BaseT connections.
Network Printer - LAN and WLAN users can share the printer attached to the UniGate-
•
•
IEEE802.11b (DSSS) specifications.
(Ethernet) port, OR via an analog modem or ISDN TA on the Serial (RS232) port.
way EH-2101W.
RAS (Remote Access Service) Dial-in - Remote users can use the UniGateway EH2101W to connect to the LAN and access LAN resources, including the UniGateway EH2101W's printer and Broadband Internet access.
Figure 1: UniGateway EH-2101W
UniGateway EH-2101W Features
The UniGateway EH-2101W incorporates many advanced features, carefully designed to
provide sophisticated functions while being easy to use.
Internet Access Features
•
Shared Internet Access. All users on the LAN or WLAN can access the Internet
through the UniGateway EH-2101W, using only a single external IP Address. The local
(invalid) IP Addresses are hidden from external sources. This process is called NAT
(Network Address Translation).
•
DSL & Cable Modem Support. The UniGateway EH-2101W has a 10BaseT Ethernet
port for connecting a DSL or Cable Modem. All popular DSL and Cable Modems are supported.
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UniGateway EH-2101W User Manual
•
PPPoE and PPTP Support. The Internet (WAN port) connection supports PPPoE
•
Analog Modem and ISDN TA Support. If you don't yet have Broadband Internet
•
Fixed or Dynamic IP Address. On the Internet (WAN port) connection, the UniGate-
(PPP over Ethernet) and PPTP (Peer-to-Peer Tunneling Protocol), as well as "Direct Connection" type services.
access, the UniGateway EH-2101W can provide shared Internet access via an analog modem or ISDN TA connected to the serial (RS232) port.
way EH-2101W supports both Dynamic IP Address (IP Address is allocated on
connection) and Fixed IP Address.
Advanced Internet Functions
•
Conferencing & Telephony Applications. Internet Telephony and Conferencing
•
Special Internet Applications. Applications which use non-standard connections or
•
Virtual Servers. This feature allows Internet users to access Internet servers on your
•
DMZ. One (1) PC on your local LAN can be configured to allow unrestricted 2-way
•
URL Filter. Use the URL Filter to block access to undesirable Web sites by LAN users,
or Wireless LAN users.
•
Internet Access Log. See which Internet connections have been made.
applications, which are often difficult to use when behind a Firewall, are supported.
port numbers are normally blocked by the Firewall. The ability to define and allow such
applications is provided, to enable such applications to be used normally.
LAN. The required setup is quick and easy.
communication with Servers or individual users on the Internet. This provides the ability
to run programs which are incompatible with Firewalls.
Wireless Features
•
Standards Compliant. The UniGateway EH-2101W complies with the IEEE802.11b
•
WEP support. Support for WEP (Wired Equivalent Privacy) is included. Both 64 Bit
and 128 Bit keys are supported.
•
Access Control. The Access Control feature can ensure that only trusted Wireless
•
Simple Configuration. If the default settings are unsuitable, they can be changed
(DSSS) specifications for Wireless LANs.
Stations can access your LAN.
quickly and easily.
LAN Features
•
4-Port Switching Hub. The UniGateway EH-2101W incorporates a 4-port
•
DHCP Server Support. Dynamic Host Configuration Protocol provides a dynamic IP
address to PCs and other devices upon request. The UniGateway EH-2101W can act as a
DHCP Server for devices on your local LAN and WLAN.
•
Multi Segment LAN Support. LANs containing one or more segments are supported,
via the UniGateway EH-2101W's RIP (Routing Information Protocol) support and built-in
static routing table.
10/100BaseT switching hub, making it easy to create or extend your LAN.
2
Introduction
Network Printer
•
Shared Printer (Network Printer). A printer connected to the UniGateway EH2101W's parallel port can be shared by all PCs on the LAN or WLAN.
•
Multiple OS Support. Clients may use any of the following operating systems:
•
•
Windows 95/98/ME
•
Windows NT 4.0, 2000, or XP.
•
Apple Macintosh
•
Unix
Multi-protocol Support. The following printing methods are supported:
•
Windows peer-to-peer printing over TCP/IP, using the supplied port driver.
•
Windows LPD printing, using a Windows Server running NT 4.0 or Windows 2000
Server. In this situation, no software needs to be installed on the client PCs.
•
AppleTalk
•
Unix LPD printing. No additional software needs to be installed.
Configuration & Management
•
Easy Setup. Use your WEB browser from anywhere on the LAN or WLAN for configu-
•
Remote Management. The UniGateway EH-2101W can be managed from any PC on
•
UPnP Support. UPnP (Universal Plug and Play) allows automatic discovery and con-
ration.
your LAN. And, if the Internet connection exists, it can also (optionally) be configured via
the Internet.
figuration of the UniGateway EH-2101W. UPnP is supported by Windows ME, XP, or
later.
RAS (Remote Access Services)
•
RAS Dial-in. Remote PC users can use their standard Dial-up Networking software to
connect to the UniGateway EH-2101W and access LAN resources.
•
Dial-back Support. For additional security, the Dial-back feature can be used to hang
up and re-dial the remote user. Both fixed and roaming options are supported.
Security Features
•
Password - protected Configuration. Optional password protection is provided to
•
Wireless LAN Security. WEP (Wired Equivalent Privacy) is supported, as well as
Wireless access control to prevent unknown wireless stations from accessing your LAN.
•
NAT Protection. An intrinsic side effect of NAT (Network Address Translation) tech-
•
Stateful Inspection Firewall. All incoming data packets are monitored and all incom-
•
Protection against DoS attacks. DoS (Denial of Service) attacks can flood your
Internet connection with invalid packets and connection requests, using so much band-
prevent unauthorized users from modifying the configuration data and settings.
nology is that by allowing all LAN users to share a single IP address, the location and
even the existence of each PC is hidden. From the external viewpoint, there is no network,
only a single device - the UniGateway EH-2101W.
ing server requests are filtered, thus protecting your network from malicious attacks from
external sources.
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UniGateway EH-2101W User Manual
width and so many resources that Internet access becomes unavailable. The UniGateway
EH-2101W incorporates protection against DoS attacks.
Package Contents
The following items should be included:
•
The UniGateway EH-2101W Unit
•
Wireless PCMCIA Card
•
Power Adapter
•
Quick Installation Guide
•
CD-ROM containing the on-line manual and Print Port Driver for Windows.
If any of the above items are damaged or missing, please contact your dealer immediately.
Physical Details
Front-mounted LEDs
Power
On - Power on.
Off - No power.
Status (Red)
On - Error condition.
Off - Normal operation.
Blinking - This LED blinks during start up.
LAN
For each port, there are 3 LEDs
•
•
•
Full/Col
•
On - Corresponding LAN (hub) port is using Full Duplex mode.
•
Flashing - Collisions are occurring. Some collisions are normal
in Half-duplex mode.
•
Off - Corresponding LAN (hub) port is using Half Duplex mode,
or not currently used.
Link/Act
•
On - Corresponding LAN (hub) port is active.
•
Off - No active connection on the corresponding LAN (hub) port.
•
Flashing - Data is being transmitted or received via the corresponding LAN (hub) port.
100
•
On - Corresponding LAN (hub) port is using 100BaseT.
•
Off - Corresponding LAN (hub) port connection is using
10BaseT, or no active connection.
4
Introduction
Wireless
On - Wireless connection available; Wireless Access Point is ready for
use.
Off - No Wireless connection available.
Flashing - Data is transmitted or received via the Wireless access point.
This includes "network traffic" as well as user data.
WAN
On - Connection to the modem attached to the WAN (Internet) port is
established.
Flashing - Data is being transmitted or received via the WAN port.
COM
Off - Idle or no active device connected to the serial (RS232) port.
(Serial Port)
Flashing - Data is transmitted or received via the serial (RS232) port.
Print Act
On - Connection to printer established.
Off - No connection to printer; printer is Off or Off-line.
Flashing - Data is being transmitted to the printer.
Print Error
On - Printer error detected.
Off - No printer error detected.
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UniGateway EH-2101W User Manual
Rear Panel
Figure 2: Rear Panel
WAN port
(10BaseT)
Connect the DSL or Cable Modem here. If your modem came with a
cable, use the supplied cable. Otherwise, use a standard LAN cable.
DIP switches
Refer to the following table.
Serial Port
RS232 Serial Port. If you have an analog modem or ISDN TA,
connect it here.
Reset Button
This button has three (3) functions:
•
Reboot. When pressed and released, the UniGateway EH2101W will reboot (restart).
•
Diagnostic print-out. If held down for 3 seconds, a diagnostic
print-out will be sent to the attached printer.
•
•
Ensure the printer is ready.
•
Both Print LEDs will flash simultaneously during the diagnostic printing.
Clear All Data. This button can also be used to clear ALL data
and restore ALL settings to the factory default values.
To Clear All Data and restore the factory default values:
1. Power Off.
2. Hold the Reset Button down while you Power On.
3. Keep holding the Reset Button for a few seconds, until the RED
LED has flashed TWICE.
4. Release the Reset Button. The UniGateway EH-2101W is now
using the factory default values.
PCMCIA slot
Power port (12V)
Insert the supplied Wireless PCMCIA card into this slot.
•
Ensure the power is OFF before inserting or removing the
PCMCIA Card.
•
Do not use any other PCMCIA Card.
Connect the supplied power adapter here.
6
Introduction
10/100BaseT
LAN connections
Use standard LAN cables (RJ45 connectors) to connect your PCs to
these ports.
The "Uplink" port can be used to connect to a standard port on
another Hub, using a standard LAN cable.
Use EITHER "Port 1" OR the "Uplink" port.
You can NOT use both.
Standard parallel printer port. If you wish to share a printer, connect
it here.
Printer Port
DIP Switches
DIP Switch Setting
Description
1=off
2=off
Normal Operation.
1=off
2=on
DHCP Server function disabled.
1=on
2=off
Used to restore Default IP Address
and clear Password (See below).
1=on
2=on
Normal Operation.
Restore Default IP Address and Clear Password
If the UniGateway EH-2101W's IP Address or password is lost, the following procedure can
be used to recover from this situation.
1. Turn the power to the UniGateway EH-2101W OFF.
2. Set DIP switch 1 ON.
3. Turn the power to the UniGateway EH-2101W ON.
4. Operate DIP switch 1 in the following sequence (you have 15 seconds to complete the
sequence):
5.
6.
•
OFF
•
ON
• OFF
The UniGateway EH-2101W will now reset, and the Red Status LED flash. The following
changes will have been made. (Other configuration data is unchanged.)
•
IP Address set to its default value of 192.168.0.1
•
Network Mask set to 255.255.255.0
•
DHCP Server is enabled, and will allocate IP Addresses in the range 192.168.0.2 to
192.168.0.51.
• The password cleared (no password).
You can now connect to the UniGateway EH-2101W and make any configuration changes
required
7
2
Chapter 2
Installation
This Chapter covers the physical installation of the UniGateway EH-2101W.
Requirements
•
Network cables. Use standard 10/100BaseT network (UTP) cables with RJ45 connectors.
•
TCP/IP protocol must be installed on all PCs.
•
For Internet Access, an Internet Access account with an ISP, and either of:
•
A DSL or Cable modem (for WAN port usage)
•
An analog modem or ISDN TA (for serial port usage)
•
To use the Wireless Access Point, all Wireless devices must be compliant with the
IEEE802.11b specifications.
•
For shared access to the attached printer, the following clients are supported:
•
Windows 95/98/ME
•
Windows NT 4.0, 2000, or XP.
•
Apple Macintosh
•
Unix (LPD printing)
Procedure
Figure 3: Installation Diagram
1. Choose an Installation Site
Select a suitable place on the network to install the UniGateway EH-2101W.
Ensure the UniGateway EH-2101W and the DSL/Cable modem are powered OFF.
8
Installation
For best Wireless reception and performance, the Access
Point should be positioned in a central location with minimum obstructions between the Access Point and the PCs.
Also, if using multiple Access Points, adjacent Access
Points should use different Channels.
2. Insert Wireless PCMCIA card
Ensuring the supplied Wireless PCMCIA card is the right way up, insert it into the slot on
the rear. Push it firmly until it clicks into position.
3. Connect LAN Cables
Use standard LAN cables to connect PCs to the Switching Hub ports on the UniGateway
EH-2101W. Both 10BaseT and 100BaseT connections can be used simultaneously.
If required, connect the "Uplink" port to a normal port on another Hub, using a standard
LAN cable.
Note: If the "Uplink" port is used, LAN port 1 can NOT be used.
4. Connect WAN Cable
Connect the DSL or Cable modem to the WAN port on the UniGateway EH-2101W. Use
the cable supplied with your DSL/Cable modem. If no cable was supplied, use a standard
cable.
5. Connect Printer Cable
Use a standard parallel printer cable to connect your printer to the Printer port on the UniGateway EH-2101W.
6. Power Up
•
Power on the Cable or DSL modem.
•
Connect the supplied power adapter to the UniGateway EH-2101W and power up.
Use only the power adapter provided. Using a different one may cause hardware damage
7. Check the LEDs
•
The Power LED should be ON.
•
The Status LED should flash, then turn Off. If it stays on, there is a hardware error.
•
For each LAN (PC) connection, the LAN Link/Act LED should be ON (provided the PC is
also ON.)
•
The WAN LED should be ON.
•
The Wireless LED should be ON.
•
If the printer is On and On-line, the Print Act LED should be ON.
For more information, refer to Front-mounted LEDs in Chapter 1.
9
3
Chapter 3
Setup
This Chapter provides Setup details of the UniGateway EH-2101W.
Overview
This chapter describes the setup procedure for:
•
Internet Access
•
LAN configuration
•
Wireless setup
•
Assigning a Password to protect the configuration data.
PCs on your local LAN may also require configuration. For details, see Chapter 4 - PC Configuration.
Other configuration may also be required, depending on which features and functions of the
UniGateway EH-2101W you wish to use. Use the table below to locate detailed instructions
for the required functions.
To Do this:
Refer to:
Configure PCs on your LAN.
Chapter 4:
PC Configuration
Check UniGateway EH-2101W operation and Status.
Chapter 5:
Operation and Status
Use any of the following Internet features:
Chapter 6:
Advanced Features
•
Special Applications
•
DMZ
•
Virtual Servers
•
Dynamic DNS
•
Remote Management
Use the RAS (Dial-in) feature.
Chapter 7
Dial-in
Use any of the following Advanced Configuration
settings:
Chapter 8
Advanced Configuration
•
PC Database
•
Options (Backup DNS, TFTP, UPnP, Firewall)
•
Routing (RIP and static Routing)
Where use of a certain feature requires that
PCs or other LAN devices be configured, this
is also explained in the relevant chapter.
10
Setup
Configuration Program
The UniGateway EH-2101W contains an HTTP server. This enables you to connect to it, and
configure it, using your Web Browser. Your Browser must support JavaScript. The configuration program has been tested on the following browsers:
•
Netscape V4.08 or later
•
Internet Explorer V4 or later
Preparation
Before attempting to configure the UniGateway EH-2101W, please ensure that:
•
Your PC can establish a physical connection to the UniGateway EH-2101W. The PC and
the UniGateway EH-2101W must be directly connected (using the Hub ports on the UniGateway EH-2101W) or on the same LAN segment.
•
The UniGateway EH-2101W must be installed and powered ON.
•
If the UniGateway EH-2101W's default IP Address (192.168.0.1) is already used by
another device, the other device must be turned OFF until the UniGateway EH-2101W is
allocated a new IP Address during configuration.
Connecting to the UniGateway EH-2101W
Using UPnP
If your Windows system supports UPnP, an icon for the UniGateway EH-2101W will appear
in the system tray, notifying you that a new network device has been found, and offering to
create a new desktop shortcut to the newly-discovered device.
•
Unless you intend to change the IP Address of the UniGateway EH-2101W, you can
accept the desktop shortcut.
•
Whether you accept the desktop shortcut or not, you can always find UPnP devices in My
Network Places (previously called Network Neighborhood).
•
Double - click the icon for the UniGateway EH-2101W (either on the Desktop, or in My
Network Places) to start the configuration. Refer to the following section Setup Wizard for
details of the initial configuration process.
Using your Web Browser
To establish a connection from your PC to the UniGateway EH-2101W:
1. After installing the UniGateway EH-2101W in your LAN, start your PC. If your PC is
already running, restart it.
2. Start your WEB browser.
3. In the Address box, enter "HTTP://" and the IP Address of the UniGateway EH-2101W, as
in this example, which uses the UniGateway EH-2101W's default IP Address:
HTTP://192.168.0.1
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UniGateway EH-2101W User Manual
If you can't connect
If the UniGateway EH-2101W does not respond, check the following:
•
The UniGateway EH-2101W is properly installed, LAN connection is OK, and
it is powered ON. You can test the connection by using the "Ping" command:
•
Open the MS-DOS window or command prompt window.
•
Enter the command:
ping 192.168.0.1
If no response is received, either the connection is not working, or your
PC's IP address is not compatible with the UniGateway EH-2101W's IP
Address. (See next item.)
•
If your PC is using a fixed IP Address, its IP Address must be within the range
192.168.0.2 to 192.168.0.254 to be compatible with the UniGateway EH2101W's default IP Address of 192.168.0.1. Also, the Network Mask must be
set to 255.255.255.0. See Chapter 4 - PC Configuration for details on checking your PC's TCP/IP settings.
•
Ensure that your PC and the UniGateway EH-2101W are on the same network
segment. (If you don't have a router, this must be the case.)
12
Setup
Setup Wizard
The first time you connect to the UniGateway EH-2101W, the Setup Wizard will run automatically. (The Setup Wizard will also run if the UniGateway EH-2101W's default setting are
restored.)
1. Start the Wizard, and step through it until finished.
•
2.
You will need to know the type of Internet connection service used by your ISP.
• The common connection types are explained in the tables below.
On the final screen of the Wizard, run the test and check that an Internet connection can be
established.
•
If the connection fails, check your data, the Cable/DSL modem, and all connections.
•
If your ISP has recorded your MAC (hardware) address, exit the Wizard and select
MAC Address on the Advanced menu. Change the MAC address to match the value
expected by your ISP.
Cable Modems
Type
Details
ISP Data required
Dynamic
IP Address
Your IP Address is allocated
automatically, when your
connect to you ISP.
None.
Static (Fixed)
IP Address
Your ISP allocates a permanent
IP Address to you.
IP Address allocated to you.
@Home type
service.
The IP Address is allocated
automatically, but a "Host
Name" and "Domain Name" are
allocated to you. Sometimes, the
ISP will record the MAC
(Hardware) address of your PC.
Host Name and Domain
Name; sometimes the MAC
(hardware) address.
Type
Details
ISP Data required
Dynamic
IP Address
Your IP Address is allocated
automatically, when your
connect to you ISP.
None.
Static (Fixed)
IP Address
Your ISP allocates a permanent
IP Address to you.
IP Address allocated to you.
PPPoE
You connect to the ISP only
when required. The IP address
is allocated automatically.
User name and password.
PPTP
Mainly used in Europe.
•
PPTP Server IP Address.
You connect to the ISP only
when required. The IP address
is usually allocated automatically, but may be Static (Fixed).
•
User name and password.
•
IP Address allocated to
you, if Static (Fixed).
DSL Modems
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UniGateway EH-2101W User Manual
Other Modems (e.g. Broadband Wireless)
Type
Details
ISP Data required
Dynamic
IP Address
Your IP Address is allocated
automatically, when your
connect to you ISP.
None.
Static (Fixed)
IP Address
Your ISP allocates a permanent
IP Address to you.
IP Address allocated to you.
Home Screen
After finishing the Setup Wizard, you will see the Home screen. When you connect in future,
you will see this screen when you connect. An example screen is shown below.
Figure 4: Home Screen
Navigation & Data Input
•
Use the menu bar on the top of the screen, and the "Back" button on your Browser, for
navigation.
•
Changing to another screen without clicking "Save" does NOT save any changes you may
have made. You must "Save" before changing screens or your data will be ignored.
On each screen, clicking the "Help" button will
display help for that screen.
From any help screen, you can access the list of all
help files (help index).
14
Setup
LAN Screen
Use the LAN link on the main menu to reach the LAN screen An example screen is shown
below.
Figure 5: LAN Screen
Data - LAN Screen
TCP/IP
IP Address
IP address for the UniGateway EH-2101W, as seen from the local
LAN. Use the default value unless the address is already in use or your
LAN is using a different IP address range. In the latter case, enter an
unused IP Address from within the range used by your LAN.
Subnet Mask
The default value 255.255.255.0 is standard for small (class "C")
networks. For other networks, use the Subnet Mask for the LAN
segment to which the UniGateway EH-2101W is attached (the same
value as the PCs on that LAN segment).
DHCP Server
•
If Enabled, the UniGateway EH-2101W will allocate IP Addresses
to PCs (DHCP clients) on your LAN when they start up. The default (and recommended) value is Enabled.
•
If you are already using a DHCP Server, this setting must be
Disabled, and the existing DHCP server must be re-configured to
treat the UniGateway EH-2101W as the default Gateway. See the
following section for further details.
•
The Start IP Address and Finish IP Address fields set the values
used by the DHCP server when allocating IP Addresses to DHCP
clients. This range also determines the number of DHCP clients
supported.
See the following section for further details on using DHCP.
Buttons
Save
Save the data on screen.
Cancel
The "Cancel" button will discard any data you have entered and reload
the file from the UniGateway EH-2101W.
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UniGateway EH-2101W User Manual
DHCP
What DHCP Does
A DHCP (Dynamic Host Configuration Protocol) Server allocates a valid IP address to a
DHCP Client (PC or device) upon request.
•
The client request is made when the client device starts up (boots).
•
The DHCP Server provides the Gateway and DNS addresses to the client, as well as
allocating an IP Address.
•
The UniGateway EH-2101W can act as a DHCP server.
•
Windows 95/98/ME and other non-Server versions of Windows will act as a DHCP
client. This is the default Windows setting for the TCP/IP network protocol. However,
Windows uses the term Obtain an IP Address automatically instead of "DHCP Client".
•
You must NOT have two (2) or more DHCP Servers on the same LAN segment. (If your
LAN does not have other Routers, this means there must only be one (1) DHCP Server on
your LAN.)
Using the UniGateway EH-2101W's DHCP Server
This is the default setting. The DHCP Server settings are on the LAN screen. On this screen,
you can:
•
Enable or Disable the UniGateway EH-2101W's DHCP Server function.
•
Set the range of IP Addresses allocated to PCs by the DHCP Server function.
You can assign Fixed IP Addresses to some devices
while using DHCP, provided that the Fixed IP Addresses
are NOT within the range used by the DHCP Server.
Using another DHCP Server
You can only use one (1) DHCP Server per LAN segment. If you wish to use another DHCP
Server, rather than the UniGateway EH-2101W's, the following procedure is required.
1. Disable the DHCP Server feature in the UniGateway EH-2101W. This setting is on the
LAN screen.
2. Configure the DHCP Server to provide the UniGateway EH-2101W's IP Address as the
Default Gateway.
To Configure your PCs to use DHCP
This is the default setting for TCP/IP under Windows 95/98/ME. See Chapter 4 - Client
Configuration for the procedure to check these settings.
16
Setup
Wireless Screen
The Wireless Access Point settings must match the other Wireless stations. To change the
UniGateway EH-2101W's default settings for the Wireless Access Point feature, use the
Wireless link on the main menu to reach the Wireless screen. An example screen is shown
below.
Figure 6: Wireless Screen
Data - Wireless Screen
Identification
Regulatory
Domain
It is illegal to use this device in any location outside of the regulatory
domain.
Station name
This is the same as the "Device Name" for the UniGateway EH2101W.
On your PC, some Wireless status screens may display this name as the
name of the Access Point in use.
SSID
(ESSID)
•
If using an ESS (Extended Service Set, with multiple access
points) this ID is called an ESSID (Extended Service Set Identifier).
•
To communicate, all Wireless stations should use the same
SSID/ESSID.
•
Select the Channel you wish to use on your Wireless LAN.
•
If you experience interference (shown by lost connections and/or
slow data transfers) you may need to experiment with different
channels to see which is the best.
•
If using multiple Access Points, adjacent Access Points should use
different Channels to reduce interference.
Options
Channel No.
17
UniGateway EH-2101W User Manual
WEP data
encryption
•
WEP (Wired Equivalent Privacy) status will display "Enabled" or
"Disabled", depending on whether WEP is being used. If used,
data is Encrypted before being transmitted, making communication more secure.
•
Click the "Configure WEP" button to access the WEP sub-screen,
and view or change the WEP settings.
•
All Wireless Stations - All wireless stations can use the access
point to access your LAN.
•
Selected Wireless stations only - Only selected wireless stations
access your LAN. To select the required wireless stations, click
the "Select Stations" button.
•
All Wireless Stations - All wireless stations can use the access
point to access the Internet.
•
Selected Wireless stations only - Only selected wireless stations
use the access point to access the Internet. To select the required
wireless stations, click the "Select Stations" button.
Access Point
Allow LAN
access by …
Allow Internet
access by …
Buttons
Configure WEP
Click this button to view the WEP sub-screen. See the following
section for more details.
Select Stations
Click this button to select the required PCs.
Save
Save the data on screen.
Cancel
The "Cancel" button will discard any data you have entered since the
last "Save" operation.
18
Setup
WEP Screen
This screen is accessed by clicking the "Configure WEP" button on the Wireless screen. An
example WEP screen is shown below. Note that in IE, the "Key Table" is only displayed when
required.
Figure 7: WEP Screen
Data - WEP Screen
WEP Data Encryption
Authentication
Type
Select the appropriate value - "Open System" or "Shared Key". Check
your Wireless card's documentation to see what method to use. Some
Wireless cards do not support both methods.
Encryption
Off
•
If OFF (default), data is NOT encrypted before being transmitted.
64 Bit Encryption
•
If selected, data is encrypted, using the default key, before being
transmitted. The receiving station must be set to use 64 Bit Encryption, and have the same Key value in the same position in its
key table. Otherwise, it will not be able to decrypt the data.
•
Default Key - select the key you wish to be the default. Transmitted data is ALWAYS encrypted using the Default Key; the other
Keys are for decryption only.
•
Key Table:
•
This table is used when Encrypting and Decrypting data. All
stations, including this Access Point, always transmit data encrypted using their default key. The key number (1, 2, 3, 4) is
also transmitted. The receiving station will use the key number (1, 2, 3, 4) to determine which key value to use for
decryption. If the key value does not match the transmitting
station, decryption will fail.
•
The easiest way to ensure there are no problems is to have
every Station, including the Access Point, use the same key
19
UniGateway EH-2101W User Manual
table (all entries identical).
128 Bit Encryption
•
If selected, data is encrypted using the key before being transmitted. The receiving station must be set to use 128 Bit Encryption,
and have the same Key value. Otherwise, it will not be able to decrypt the data.
•
Key - Enter the key value you wish to use. Other stations must
have the same key.
Password Screen
The password screen allows you to assign a password to the UniGateway EH-2101W.
Figure 8: Password Screen
Once you have assigned a password to the UniGateway EH-2101W (on the Password screen
above) you will be prompted for the password when you connect, as shown below. (If no
password has been set, this dialog will not appear.)
Figure 9: Password Dialog
•
Leave the "User Name" blank.
•
Enter the password for the UniGateway EH-2101W, as set on the Password screen above.
20
Chapter 4
PC Configuration
4
This Chapter details the PC Configuration required on the local ("Internal")
LAN.
Overview
For each PC, the following may need to be configured:
•
TCP/IP network settings
•
Internet Access configuration
•
Printer setup
•
Wireless configuration
Windows Clients
This section describes how to configure Windows clients for:
•
Internet access via the UniGateway EH-2101W
•
Sharing the Printer connected to the UniGateway EH-2101W.
The first step is to check the PC's TCP/IP settings.
The UniGateway EH-2101W uses the TCP/IP network protocol for all functions, so it is
essential that the TCP/IP protocol be installed and configured on each PC.
TCP/IP Settings - Overview
If using the default EH-2101W settings, and the default Windows TCP/IP
settings, no changes need to be made.
•
By default, the EH-2101W will act as a DHCP Server, automatically providing a suitable
IP Address (and related information) to each PC when the PC boots.
•
For all non-Server versions of Windows, the default TCP/IP setting is to act as a DHCP
client.
If using a Fixed (specified) IP address, the following changes are required:
•
The Gateway must be set to the IP address of the EH-2101W
•
The DNS should be set to the address provided by your ISP.
If you wish to check your TCP/IP settings, the procedure is described in the following sections.
If your LAN has a Router, the LAN Administrator must reconfigure the Router itself. Refer to Chapter 8 - Advanced Setup for details.
21
Checking TCP/IP Settings - Windows 9x/ME
1.
Select Control Panel - Network. You should see a screen like the following:
Figure 10: Network Configuration
2.
3.
Select the TCP/IP protocol for your network card.
Click on the Properties button. You should then see a screen like the following.
Figure 11: IP Address (Win 95)
4.
Ensure your TCP/IP settings are correct, as follows:
Using DHCP
To use DHCP, select the radio button Obtain an IP Address automatically. This is the default
Windows settings.
Restart your PC to ensure it obtains an IP Address from the UniGateway EH-2101W.
Using "Specify an IP Address"
If your PC is already configured, check with your network administrator before making the
following changes.
22
PC Configuration
•
On the Gateway tab, enter the UniGateway EH-2101W's IP address in the New Gateway
field and click Add, as shown below. Your LAN administrator can advise you of the IP
Address they assigned to the UniGateway EH-2101W.
Figure 12: Gateway Tab (Win 95/98)
•
On the DNS Configuration tab, ensure Enable DNS is selected. If the DNS Server Search
Order list is empty, enter the DNS address provided by your ISP in the fields beside the
Add button, then click Add.
Figure 13: DNS Tab (Win 95/98)
23
Checking TCP/IP Settings - Windows 2000:
1.
2.
Select Control Panel - Network and Dial-up Connection.
Right click the Local Area Connection icon and select Properties. You should see a screen
like the following:
Figure 14: Network Configuration (Win 2000)
3.
4.
Select the TCP/IP protocol for your network card.
Click on the Properties button. You should then see a screen like the following.
24
PC Configuration
Figure 15: TCP/IP Properties (Win 2000)
5.
Ensure your TCP/IP settings are correct:
Using DHCP
To use DHCP, select the radio button Obtain an IP Address automatically. This is the default
Windows setting.
Restart your PC to ensure it obtains an IP Address from the UniGateway EH-2101W.
Using a fixed IP Address ("Use the following IP Address")
If your PC is already configured, check with your network administrator before making the
following changes.
•
Enter the UniGateway EH-2101W's IP address in the Default gateway field and click OK.
(Your LAN administrator can advise you of the IP Address they assigned to the UniGateway EH-2101W.)
•
If the DNS Server fields are empty, select Use the following DNS server addresses, and
enter the DNS address or addresses provided by your ISP, then click OK.
25
Checking TCP/IP Settings - Windows XP
1.
2.
Select Control Panel - Network Connection.
Right click the Local Area Connection and choose Properties. You should see a screen
like the following:
Figure 16: Network Configuration (Windows XP)
3.
4.
Select the TCP/IP protocol for your network card.
Click on the Properties button. You should then see a screen like the following.
26
PC Configuration
Figure 17: TCP/IP Properties (Windows XP)
5.
Ensure your TCP/IP settings are correct.
Using DHCP
To use DHCP, select the radio button Obtain an IP Address automatically. This is the default
Windows settings.
Restart your PC to ensure it obtains an IP Address from the UniGateway EH-2101W.
Using a fixed IP Address ("Use the following IP Address")
If your PC is already configured, check with your network administrator before making the
following changes.
•
Enter the UniGateway EH-2101W's IP address in the Default gateway field and click OK.
Your LAN administrator can advise you of the IP Address they assigned to the UniGateway EH-2101W.
•
If the DNS Server fields are empty, select Use the following DNS server addresses, and
enter the DNS address or addresses provided by your ISP, then click OK.
27
Internet Access
To configure your PCs to use the EH-2101W for Internet access:
•
Ensure that the DSL modem, Cable modem, or other permanent connection is functional.
•
Use the following procedure to configure your Browser to access the Internet via the
LAN, rather than by a Dial-up connection.
For Windows 9x/2000
1.
2.
3.
4.
5.
6.
7.
Select Start Menu - Settings - Control Panel - Internet Options.
Select the Connection tab, and click the Setup button.
Select "I want to set up my Internet connection manually, or I want to connect through a
local area network (LAN)" and click Next.
Select "I connect through a local area network (LAN)" and click Next.
Ensure all of the boxes on the following Local area network Internet Configuration screen
are unchecked.
Check the "No" option when prompted "Do you want to set up an Internet mail account
now?".
Click Finish to close the Internet Connection Wizard.
Setup is now completed.
For Windows XP
1.
2.
3.
4.
5.
6.
7.
8.
9.
Select Start Menu - Control Panel - Network and Internet Connections.
Select Set up or change your Internet Connection.
Select the Connection tab, and click the Setup button.
Cancel the pop-up "Location Information" screen.
Click Next on the "New Connection Wizard" screen.
Select "Connect to the Internet" and click Next.
Select "Set up my connection manually" and click Next.
Check "Connect using a broadband connection that is always on" and click Next.
Click Finish to close the New Connection Wizard.
Setup is now completed.
Accessing AOL
To access AOL (America On Line) through the EH-2101W, the AOL for Windows software
must be configured to use TCP/IP network access, rather than a dial-up connection. The
configuration process is as follows:
•
Start the AOL for Windows communication software. Ensure that it is Version 2.5, 3.0 or
later. This procedure will not work with earlier versions.
•
Click the Setup button.
•
Select Create Location, and change the location name from "New Locality" to "EH2101W".
•
Click Edit Location. Select TCP/IP for the Network field. (Leave the Phone Number
blank.)
•
Click Save, then OK.
Configuration is now complete.
•
Before clicking "Sign On", always ensure that you are using the "EH-2101W" location.
28
PC Configuration
Printer Setup for Windows
The EH-2101W provides printing support for 2 methods for printing from Windows:
•
Print Port Driver. After installing the Print Port Driver, Windows users can print directly to the EH-2101W. Print jobs are spooled (queued) on each PC.
The supplied Print Port Driver supports Windows 95/98, Windows ME, Windows NT4.0,
Windows 2000 and Windows XP.
•
LPD/LPR Printing. If using Windows NT 4.0 Server or Windows 2000 Server,
LPD/LPR printing can be used. No software needs to be installed on either the Windows
Server or each client PC. Print jobs will be spooled (queued) on the Windows Server, and
can be managed using the standard Windows Server tools.
Print Port Driver Setup
The following procedure is for all versions of Windows (95/98/ME, NT4.0, 2000, XP). The
Windows "Add Printer" screens will vary depending on your version or Windows, but the
procedure is the same:
1.
2.
3.
4.
5.
Insert the supplied CD-ROM into your drive. If the setup program does not start automatically, run SETUP.EXE in the root folder.
At the Setup Type screen, select the correct model.
At the Select Components screen, select the Print Port Driver option.
Follow the prompts to complete the installation.
The Print Port Setup will then run, and the following screen will be displayed.
Figure 18: Print Port Setup
6.
Select the desired device and port, and then click the "Add" button.
29
Under Windows 95, if you see the following error message,
either install Internet Explorer 4 or later, or follow the procedure in the "Trouble Shooting - Printing" section of
Appendix A.
7.
8.
A pop-up message will inform you if the port has been created successfully, and then the
Windows Add Printer wizard will start.
•
Select the correct Printer Manufacturer and Model, or use the "Have Disk" option if
appropriate.
•
If desired, change the Printer name so it indicates the device used (e.g. HP2100 on
SCA43600)
• If prompted about Sharing, do NOT enable Sharing.
Installation is now complete. You can now print using this printer.
•
To install additional Printers (on different devices), repeat steps 6 and 7.
•
Use the Start menu to run this program in future. The default installation is Start Programs - Broadband Internet Router - Add Port.
Management
•
Print jobs can be managed like any Windows printer. Open the Printers folder (Start Settings - Printers) and double-click any printer to see the current print jobs.
•
If the printer attached to the EH-2101W is changed, just run this program again, and select
the correct printer.
•
•
To delete a port created by this setup program, use the Windows Delete Port facility:
•
Right-click any printer in the Printers folder, and select Properties.
•
Locate the Delete Port button. This button is on the Details or Ports tab, depending
on your version or Windows.
If the EH-2101W's IP Address is changed, and you can no longer print, delete the port
(see procedure above) and re-install it.
Port Options
The options for the Print Port Driver are accessed via the Windows Port Settings button.
Use Start - Settings - Printers to open the Printers folder, then right-click the Printer, and select
Properties. The Port Settings button is on the Details or Port tab, depending on your version
of Windows.
An example screen is shown below:
30
PC Configuration
Figure 19: Print Port Configuration
Items shown on this screen are as follows:
Port
If desired, click Browse to select a different device. (The Select
Device Port button is provided to allow this software to work
with multi-port models.)
The Port Name is shown in the Printer's Properties.
Banner
Retry
Interval
Check this option to print a banner page before each print job.
•
If using a PostScript Printer, check the PostScript box.
•
The User Name will be printed on the banner page.
Sets how often Windows will poll the EH-2101W to establish a
connection when the printer is busy. Increase this value if you get
too many warning messages.
31
LPD/LPR Printing
LPD/LPR printing can be used with Windows NT 4.0 Server or Windows 2000. No software
needs to be installed on client PCs.
Windows NT 4.0 Server Configuration
To use LPD printing, Microsoft TCP/IP Printing must be installed and enabled. This can be
checked using Start-Settings-Control Panel-Network - Services.
To install LPD printing using the EH-2101W, follow this procedure:
1.
2.
3.
4.
5.
6.
7.
8.
9.
Go to Start-Settings-Printer and invoke the Add Printer wizard.
When prompted with "This printer will be managed by..", select My Computer and click
Next.
Select Add Port, then select LPR Port and click New Port.
In the Dialog requesting Name of Address of server providing lpd, enter the IP address of
the EH-2101W.
For Name of printer or print queue on that server, enter L1
Click OK. When returned to the Printer Ports window, simply select Close and then install
your printer driver as usual.
When prompted whether or not the printer will be shared, select the Sharing radio button.
In the Shared dialog box, enter the shared printer name. The shared name is how other
users will see this printer. You should advise client PCs of the Server name and this
printer name.
Click OK to save and exit.
32
PC Configuration
Windows 2000 Server Configuration
The LPD/LPR Port is not enabled by default. To enable it, use this procedure:
1.
2.
In Control Panel, select Add/Remove Programs, then Windows Components.
Select Other Network File and Print Services, then click the Details button.
Figure 20: Adding LPD/LPR Port (Win 2000)
3.
4.
Enable Print Services for Unix, and click OK.
Click Next and complete the Wizard.
Adding the Printer
1.
2.
3.
Open your Printers folder, and start the Add Printer Wizard.
When prompted, select Local Printer.
On the Select the Printer Port screen, select LPR Port, as shown below. Click Next to
continue.
33
Figure 21: Windows 2000: Select Port
4.
5.
6.
7.
8.
In the Dialog requesting Name or Address of server providing lpd, enter the IP address of
the EH-2101W.
For Name of printer or print queue on that server, enter L1
Click OK, and then Next, and continue the Wizard.
At the Select Sharing screen, select the Radio Button for Share As, and enter the shared
printer name. The shared name is how other users will see this printer. You should advise
client PCs of the Server name and this printer name.
Complete the Add Printer wizard.
Client PC Setup for LPD/LPR Printing
After configuring the Windows Server, client PCs on the LAN can install the new printer.
The following procedure is for Windows 95/98/ME, Windows NT4.0, and Windows 2000
workstation.
1. Open your Printers folder, and start the Add Printer Wizard.
2. When prompted, select Network Printer
3. When prompted for Network Path or Queue Name, click the Browse button, and locate the
Server and Printer which your Network Administrator advised you to use.
4. Click OK, then Next.
5. Select the correct printer Manufacturer and Model, as advised by your Network Administrator, and click Next.
6. Follow the prompts to complete the Wizard.
7. The new printer will be listed with any other installed printers, and may be selected when
printing from any Windows application.
34
PC Configuration
Macintosh Clients
From your Macintosh, you can access the Internet via the UniGateway EH-2101W. The
procedure is as follows.
1. Open the TCP/IP Control Panel.
2. Select Ethernet from the Connect via pop-up menu.
3. Select Using DHCP Server from the Configure pop-up menu. The DHCP Client ID field
can be left blank.
4. Close the TCP/IP panel, saving your settings.
Note:
If using manually assigned IP addresses instead of DHCP, the required changes are:
•
Set the Router Address field to the UniGateway EH-2101W's IP Address.
•
Ensure your DNS settings are correct.
Printing
If you wish to share the printer connected to the UniGateway EH-2101W, using a LaserWriter
or compatible is required.
Installing the Printer
To gain access to the printer connected to the UniGateway EH-2101W, follow this procedure:
1. Select Control Panel - Network.
2. Ensure that EtherTalk is selected under AppleTalk Connection.
3. Open Chooser, and select the correct printer type (e.g. LaserWriter).
4. From the list of available printers on the right, select the UniGateway EH-2101W, then
click Create.
5. The new printer will be created, and can be used like any other printer.
35
Linux Clients
To access the Internet via the EH-2101W, it is only necessary to set the EH-2101W as the
"Gateway".
Ensure you are logged in as "root" before attempting any changes.
Fixed IP Address
By default, most Unix installations use a fixed IP Address. If you wish to continue using a
fixed IP Address, make the following changes to your configuration.
•
Set your "Default Gateway" to the IP Address of the EH-2101W.
•
Ensure your DNS (Name server) settings are correct.
To act as a DHCP Client (recommended)
The procedure below may vary according to your version of Linux and X -windows shell.
1. Start your X Windows client.
2. Select Control Panel - Network
3. Select the "Interface" entry for your Network card. Normally, this will be called "eth0".
4. Click the Edit button, set the "protocol" to "DHCP", and save this data.
5. To apply your changes
•
Use the "Deactivate" and "Activate" buttons, if available.
•
OR, restart your system.
Printing Setup on Linux
The EH-2101W supports LPD Printing on Linux.
•
The EH-2101W supports 3 "Logical Printers" under LPD. To configure the "Logical
Printers" on the EH-2101W, refer to Printer Port in Chapter 8.
•
The procedure to install a LPD printer is detailed below, but may vary according to your
version of Linux and X -windows shell.
1.
2.
3.
In your X Windows shell, select Control Panel, then Printer Configuration.
Select Add. For the printer type, select Remote Unix (lpd) Queue.
Use the following data to complete the resulting dialog.
Field
Data
Example
Name
Enter a name for this printer
gw_prn
Spool Directory
/var/spool/lpd/printer_name
Where printer_name is the "Name"
entry above.
/var/spool/lpd/gw_prn
File Limit
Enter a suitable number.
0
Remote Host
EH-2101W's IP address
192.168.0.1
(no limit)
Note:
If you have made a host file entry, you can use the name from the
host file instead of the IP Address.
36
PC Configuration
Remote Queue
4.
Ln
Where n is the Logical Printer number
(L1, L2, L3). Logical Printers can be
configured on the EH-2101W's Options- Printer Port screen.
L1
Save this data, and exit the Printer Configuration. Configuration is now completed, and
the printer is now available for use.
Other Unix Systems
To access the Internet via the EH-2101W.
•
Ensure the "Gateway" field for your network card is set to the IP Address of the EH2101W.
•
Ensure your DNS (Name Server) settings are correct.
Printing Setup
To use LPD printing to the EH-2101W's printer, install an LPD printer using the standard
procedure for your system.
•
Use the EH-2101W's IP Address as the location of the remote host
•
Use L1, L2, or L3 for the name of the printer on the remote host.
On the EH-2101W, the logical printers (L1, L2, and L3) can be configured on the Advanced Printer Port screen. . See Printer Port in Chapter 8 - Advanced Configuration for details.
37
Chapter 5
Operation and Status
5
This Chapter details the operation of the UniGateway EH-2101W and the
status screens.
Operation
Once both the UniGateway EH-2101W and the PCs are configured, operation is automatic.
However, there are some situations where additional Internet configuration may be required:
•
If using Internet-based Conferencing & Telephony applications, it may be necessary to
specify which PC receives an incoming connection.
•
Applications which use non-standard connections or port numbers may be blocked by the
UniGateway EH-2101W's built-in firewall. You can define such applications as Special
Applications to allow them to function normally.
•
Some non-standard applications may require use of the DMZ feature.
For all of these situations, refer to Chapter 6 - Advanced Features for further details.
Status Screen
Use the Status link on the main menu to view this screen.
Figure 22: Status Screen
38
Operation and Status
Data - Status Screen
Internet
Internet IP Address
This IP Address is allocated by the ISP (Internet Service Provider).
Connection Status
Current connection status:
•
OK
•
No connection
•
Error
If there is an error, you can click the "Connection Details" button
to find out more information.
"Connection Details"
Button
Click this button to open a sub-window and view a detailed
description of the current connection. Depending on the type of
connection, a "log" may also be available.
"Access Log"
Button
Click this button to open a sub-window and view details of
outgoing connections to the Internet. The log contains the following data:
•
Source IP Address - The IP Address of the local PC requesting the Internet connection.
•
Destination - The Internet address which was requested. If
the URL Filter is enabled, this address will be shown as a
URL. Otherwise, the IP address will be displayed.
•
Blocked - If the request was blocked by the URL Filter
function, this will display "Yes". Otherwise, it will be blank.
LAN
IP Address
The IP Address of the UniGateway EH-2101W.
Network Mask
The Network Mask (Subnet Mask) for the IP Address above.
DHCP Server
This shows the status of the DHCP Server function - either
"Enabled" or "Disabled".
For additional information about the PCs on your LAN, and the
IP addresses allocated to them, use the PC Database option on
the Advanced menu.
System
Device Name
This displays the current name of the UniGateway EH-2101W.
Firmware Version
The current version of the firmware installed in the UniGateway
EH-2101W.
"System Data"
Button
Clicking this button will open a Window which lists all system
details and settings.
Printer
Printer Status
This shows the status of the printer. Click the "Refresh Screen"
button to update this information.
"Abort Current Print
Job" Button
Click this button to terminate the current print job. This button
should be used if the current print job is not printing correctly.
39
Buttons
Connection Details
View the details of the current Internet connection. The subscreen displayed will depend on the connection method used. See
the following sections for details of each sub-screen.
Access Log
View details of outgoing connections to the internet.
System Data
Display all system information in a sub-window.
Abort Current Print
Job
Click this button to terminate the current print job. This button
should be used if the current print job is not printing correctly.
Refresh Screen
Update the data displayed on screen.
40
Operation and Status
Connection Status - PPPoE
If using PPPoE (PPP over Ethernet), a screen like the following example will be displayed
when the "Connection Details" button is clicked.
Figure 23: PPPoE Status Screen
Data - PPPoE Status Screen
Connection
Physical Address
The hardware address of this device, as seen by remote devices
on the Internet. (This is different to the hardware address seen by
devices on the local LAN.)
IP Address
The IP Address of this device, as seen by Internet users. This
address is allocated by your ISP (Internet Service Provider).
Network Mask
The Network Mask associated with the IP Address above.
PPPoE Link Status
This indicates whether or not the connection is currently established.
•
If the connection does not exist, the "Connect" button can be
used to establish a connection.
•
If the connection currently exists, the "Disconnect" button
can be used to break the connection.
•
The Connection Log shows status messages relating to the
existing connection.
•
The most common messages are listed in the table below.
•
The "Clear Log" button will restart the Log, while the Re-
Connection Log
Connection Log
41
fresh button will update the messages shown on screen.
Buttons
Connect
If not connected, establish a connection to your ISP.
Disconnect
If connected to your ISP, hang up the connection.
Clear Log
Delete all data currently in the Log. This will make it easier to
read new messages.
Refresh
Update the data on screen.
Connection Log Messages
Message
Description
Connect on Demand
Connection attempt has been triggered by the "Connect
automatically, as required" setting.
Manual connection
Connection attempt started by the "Connect" button.
Reset physical connection
Preparing line for connection attempt.
Connecting to remote
server
Attempting to connect to the ISP's server.
Remote Server located
ISP's Server has responded to connection attempt.
Start PPP
Attempting to login to ISP's Server and establish a PPP
connection.
PPP up successfully
Able to login to ISP's Server and establish a PPP connection.
Idle time-out reached
The connection has been idle for the time period specified in
the "Idle Time-out" field. The connection will now be terminated.
Disconnecting
The current connection is being terminated, due to either the
"Idle Time-out" above, or "Disconnect" button being clicked.
Error: Remote Server not
found
ISP's Server did not respond. This could be a Server problem,
or a problem with the link to the Server.
Error: PPP Connection
failed
Unable to establish a PPP connection with the ISP's Server.
This could be a login problem (name or password) or a Server
problem.
Error: Connection to
Server lost
The existing connection has been lost. This could be caused
by a power failure, a link failure, or Server failure.
Error: Invalid or unknown
packet type
The data received from the ISP's Server could not be processed. This could be caused by data corruption (from a bad
link), or the Server using a protocol which is not supported by
this device.
42
Operation and Status
Connection Status - PPTP
If using PPTP (Peer-to-Peer Tunneling Protocol), a screen like the following example will be
displayed when the "Connection Details" button is clicked.
Figure 24: PPTP Status Screen
Data - PPTP Status Screen
Connection
Physical Address
The hardware address of this device, as seen by remote devices on
the Internet. (This is different to the hardware address seen by
devices on the local LAN.)
IP Address
The IP Address of this device, as seen by Internet users. This address
is allocated by your ISP (Internet Service Provider).
PPTP Status
This indicates whether or not the connection is currently established.
•
If the connection does not exist, the "Connect" button can be
used to establish a connection.
•
If the connection currently exists, the "Disconnect" button can be
used to break the connection.
•
The Connection Log shows status messages relating to the
existing connection.
•
The "Clear Log" button will restart the Log, while the Refresh
button will update the messages shown on screen.
Connection Log
Connection Log
Buttons
Connect
If not connected, establish a connection to your ISP.
43
Disconnect
If connected to your ISP, hang up the connection.
Clear Log
Delete all data currently in the Log. This will make it easier to read
new messages.
Refresh
Update the data on screen.
44
Operation and Status
Connection Details - Fixed/Dynamic IP Address
If your access method is neither PPPoE nor PPTP, a screen like the following example will be
displayed when the "Connection Details" button is clicked.
Figure 25: Connection Details Screen
Data - Connection Details Screen
Internet
Physical Address
The hardware address of this device, as seen by remote devices on
the Internet. (This is different to the hardware address seen by
devices on the local LAN.)
IP Address
The IP Address of this device, as seen by Internet users. This address
is allocated by your ISP (Internet Service Provider).
Network Mask
The Network Mask associated with the IP Address above.
Default Gateway
The IP Address of the remote Gateway or Router associated with the
IP Address above.
DNS IP Address
The IP Address of the Domain Name Server which is currently used.
DHCP Client
This will show "Enabled" or "Disabled", depending on whether or
not this device is functioning as a DHCP client.
If "Enabled" the "Remaining lease time" field indicates when the IP
Address allocated by the DHCP Server will expire. The lease is
automatically renewed on expiry; use the "Renew" button if you wish
to manually renew the lease immediately.
Buttons
Renew
This button is only useful if the IP address shown above is allocated
automatically on connection. (Dynamic IP address). Otherwise, it has
no effect.
•
If the ISP's DHCP Server has NOT allocated an IP Address for
45
the EH-2101W, this button will say "Renew". Clicking the "Renew" button will attempt to re-establish the connection and
obtain an IP Address from the ISP's DHCP Server.
Refresh
Update the data shown on screen.
46
Operation and Status
Connection Status - Serial Port
An example screen is shown below.
Figure 26: Serial Port Status Screen
Data - Serial Port Status Screen
Connection Status
Port Status
This shows the current port operation. Possible values are:
•
Internet Access
•
Dial-in
•
Idle
•
Disabled
"Disabled" indicates the Serial Port has not available for either
Internet Access or Dial-in.
Physical Link
If operating, the link will show ON. This means the modem was
able to connect to the number dialed.
PPP Link
If ON, a PPP connection was successfully negotiated.
PPP IP Address
This has 2 possible meanings, depending of the type of connection:
•
Internet Access - This is the IP Address used by this device,
as seen by Internet users. This address is provided by your ISP.
•
Dial-in - This is the IP Address used by the remote user. This
IP Address is allocated by the DHCP Server function in the
47
UniGateway EH-2101W.
User
There are 2 possibilities:
•
For Internet Access, this shows the Internet Account name.
•
For Dial-in operations, this shows the current user.
Phone Line Speed
The connection speed over the phone line, between your modem
and the number dialed, as reported by your modem.
Serial Line Speed
The connection speed between this device and the modem. This
setting can be changed on the Dial-in screen.
Connection Log
Connection Log
This displays connection details.
See below for a description of the most common items in this log.
Connection Log
This shows the commands sent to the modem, and any status messages returned by the modem.
Note that you must click Refresh to update the information.
The following table lists the common messages, and their meaning.
Message
Description
Dialing
Dialing the ISP
Try to establish
physical connection.
The device is trying to connect with the ISP, using the modem.
Busy
The number dialed was busy.
Physical line is
connected
Physical connection to ISP has been established.
CONNECT nnnnnn
Physical connection was successful; nnnnnn indicates the speed of
the serial link as currently configured.
Max phone line speed
nnnnnn bps
nnnnnn is the maximum speed of the modem, according to the
current configuration.
DCD low,
DSR low
Physical line break, connection lost.
send "-----"
wait "-----"
"AT" commands sent to the modem are displayed as they are sent.
Commands in the Script file are also displayed as they are executed.
Start PPP
Having established a physical connection, a PPP connection is now
being established.
PPP up fail
The PPP connection could not be established.
PPP up successfully
The PPP connection was established successfully.
Stop PPP
The PPP connection was terminated. This will occur at the end of a
session, or an error condition.
48
Operation and Status
Try to hang up
Attempting to get the modem to hang up.
Time out
There was no response from the modem
No carrier
No answer
The number dialed did not answer.
Idle timer expires
"Disconnect after Idle Time" is Enabled, and the Time-out period
has been reached. The connection will now be terminated..
No dial tone
The modem could not obtain a dial tone.
Set baudrate nnnn
The serial line speed is being set to the speed set in the configuration.
49
Chapter 6
Advanced Features
6
This Chapter explains when and how to use the UniGateway EH-2101W's
"Advanced" Features.
Overview
The following advanced features are provided.
•
Special Applications
•
DMZ
•
Virtual Servers
•
Dynamic DNS
•
Remote Management
•
Dial-in. Please see the following chapter for full details of the Dial-in feature.
Advanced Menu Screen
This screen provides access to the advanced features. An example screen is shown below.
Figure 27: Advanced Menu
50
Advanced Features
Advanced Internet Screen
This screen allows configuration of all advanced features relating to Internet access.
•
Conferencing and Telephony
•
Special Applications
•
DMZ
•
URL filter
An example screen is shown below.
Figure 28: Internet Screen
Conferencing & Telephony
Most applications are supported transparently by the UniGateway EH-2101W. But sometimes
it is not clear which PC should receive an incoming connection. This problem could arise with
the following Conferencing & Telephony applications:
•
CUseeME
•
ICQ
•
ICU II (ICU 2)
•
Internet Phone
•
mIRC
•
MS NetMeeting
•
Yahoo Messenger
If this problem arises, you can use this screen to set which PC should receive an incoming
connection, as described below.
51
Conferencing & Telephony
Select an Application
This lists applications which may generate incoming connections,
where the destination (on your local LAN) is unknown.
Send incoming calls to
This lists the PCs on your LAN.
•
If necessary, you can add PCs manually, using the "PC
Database" option on the advanced menu.
•
For each application listed above, you can choose a destination PC.
•
There is no need to "Save" after each change; you can set the
destination PC for each application, then click "Save".
Special Applications
If you use Internet applications which use non-standard connections or port numbers, you may
find that they do not function correctly because they are blocked by the UniGateway EH2101W's firewall. In this case, you can define the application as a "Special Application".
Special Applications Screen
This screen can be reached by clicking the Special Applications button on the Internet screen.
You can then define your Special Applications. You will need detailed information about the
application; this is normally available from the supplier of the application.
Also, note that the terms "Incoming" and "Outgoing" on this screen refer to traffic from the
client (PC) viewpoint
Figure 29: Special Applications Screen
52
Advanced Features
Data - Special Applications Screen
Checkbox
Use this to Enable or Disable this Special Application as required.
Name
Enter a descriptive name to identify this Special Application.
Incoming
Ports
•
Type - Select the protocol (TCP or UDP) used when you receive data
from the special application or service. (Note: Some applications use
different protocols for outgoing and incoming data).
•
Start - Enter the beginning of the range of port numbers used by the
application server, for data you receive. If the application uses a single
port number, enter it in both the "Start" and "Finish" fields.
•
Finish - Enter the end of the range of port numbers used by the application server, for data you receive.
•
Type - Select the protocol (TCP or UDP) used when you send data to
the remote system or service.
•
Start - Enter the beginning of the range of port numbers used by the
application server, for data you send to it. If the application uses a single port number, enter it in both the "Start" and "Finish" fields.
•
Finish - Enter the end of the range of port numbers used by the application server, for data you send to it. If the application uses a single port
number, enter it in both the "Start" and "Finish" fields.
Outgoing
Ports
Using a Special Application
•
Configure the Special Applications screen as required.
•
On your PC, use the application normally. Remember that only one (1) PC can use each
Special application at any time. Also, when 1 PC is finished using a particular Special Application, there may need to be a "Time-out" before another PC can use the same Special
Application. The "Time-out" period may be up to 3 minutes.
If an application still cannot function correctly,
try using the "DMZ" feature.
53
DMZ
This feature, if enabled, allows one (1) computer on your LAN to be exposed to all users on
the Internet, allowing unrestricted 2-way communication between the "DMZ PC" and other
Internet users or Servers.
•
This allows almost any application to be used on the "DMZ PC".
•
The "DMZ PC" will receive all "Unknown" connections and data.
•
If the DMZ feature is enabled, you must select the PC to be used as the "DMZ PC".
•
The DMZ feature can be Enabled and Disabled on the Advanced Internet screen.
The "DMZ PC" is effectively outside the Firewall, making it more vulnerable to attacks. For this reason, you
should only enable the DMZ feature when required.
URL Filter
The URL Filter allows you to block access to undesirable Web site
•
To use this feature, you must define "filter strings". If the "filter string" appears in a
requested URL, the request is blocked.
•
Enabling the URL Filter also affects the Internet Access Log. If Enabled, the "Destination"
field in the log will display the URL. Otherwise, it will display the IP Address.
•
The URL Filter can be Enabled or Disabled on the Advanced Internet screen.
URL Filter Screen
Click the "Configure URL Filter" button on the Internet screen to access the URL Filter
screen. An example screen is shown below.
Figure 30: URL Filter Screen
54
Advanced Features
Data - URL Filter Screen
Filter Strings
Current Entries
This lists any existing entries. If you have not entered any values, this
list will be empty.
Add Filter String
To add an entry to the list, enter it here, and click the "Add" button.
An entry may be a Domain name (e.g. www.trash.com) or simply a
string. (e.g. ads/ )
Any URL which contains ANY entry ANYWHERE in the URL will
be blocked.
Buttons
Delete/Delete All
Use these buttons to delete the selected entry or all entries, as required.
Multiple entries can be selected by holding down the CTRL key while
selecting.(On the Macintosh, hold the SHIFT key while selecting.)
Add
Use this to add the current Filter String to the site list.
55
Virtual Servers
This feature allows you to make Servers on your LAN accessible to Internet users. Normally,
Internet users would not be able to access a server on your LAN because:
•
Your Server does not have a valid external IP Address.
•
Attempts to connect to devices on your LAN are blocked by the firewall in this device.
The "Virtual Server" feature solves these problems and allows Internet users to connect to your
servers, as illustrated below.
Figure 31: Virtual Servers
IP Address seen by Internet Users
Note that, in this illustration, both Internet users are connecting to the same IP Address, but
using different protocols.
To Internet users, all virtual Servers on your LAN have the same IP Address.
This IP Address is allocated by your ISP.
This address should be static, rather than dynamic, to make it easier for Internet users to
connect to your Servers.
However, you can use the DDNS (Dynamic DNS) feature to allow users to connect to your
Virtual Servers using a URL, instead of an IP Address.
56
Advanced Features
Virtual Servers Screen
The Virtual Servers screen is reached by the Virtual Servers link on the Advanced screen. An
example screen is shown below.
Figure 32: Virtual Servers Screen
This screen lists a number of pre-defined Servers, and allows you to define your own Servers.
Details of the selected Server are shown in the "Properties" area.
Data - Virtual Servers Screen
Servers
Servers
This lists a number of pre-defined Servers, plus any Servers you
have defined. Details of the selected Server are shown in the
"Properties" area.
Properties
Enable
Use this to Enable or Disable support for this Server, as required.
•
If Enabled, any incoming connections will be forwarded to the
selected PC.
•
If Disabled, any incoming connection attempts will be blocked.
PC (Server)
Select the PC for this Server. The PC must be running the appropriate Server software.
Protocol
Select the protocol (TCP or UDP) used by the Server.
Internal Port No.
Enter the port number which the Server software is configured to
use.
External Port No.
The port number used by Internet users when connecting to the
Server. This is normally the same as the Internal Port Number. If it
is different, this device will perform a "mapping" or "translation"
function, allowing the server to use one port address, while clients
use a different port address.
57
Buttons
Defaults
This will delete any Servers you have defined, and set the predefined Servers to use their default port numbers.
Disable All
This will cause the "Enable" setting of all Virtual Servers to be set
OFF.
Add
Add a new entry to the Virtual Server list, using the data shown in
the "Properties" area on screen. The entry selected in the list is
ignored, and has no effect.
Update
Update the current Virtual Server entry, using the data shown in the
"Properties" area on screen.
Delete
Delete the current Virtual Server entry. Note that the pre-defined
Servers can not be deleted. Only Servers you have defined yourself
can be deleted.
Clear Form
Clear all data from the "Properties" area, ready for input of a new
Virtual Server entry.
For each entry, the PC must be running the
appropriate Server software.
Defining your own Virtual Servers
If the type of Server you wish to use is not listed on the Virtual Servers screen, you can define
and manage your own Servers:
Create a new Server:
1.
2.
3.
4.
Click "Clear Form"
Enter the required data, as described above.
Click "Add".
The new Server will now appear in the list.
Modify (Edit) a Server:
1.
2.
3.
Select the desired Server from the list
Make any desired changes (for example, change the
Enable/Disable setting).
Click "Update" to save changes to the selected Server.
1.
2.
Select the entry from the list.
Click "Delete".
Delete a Server:
Note: You can only delete Servers you have defined. Predefined Server cannot be deleted.
From the Internet, ALL Virtual Servers have the IP
Address allocated by your ISP.
58
Advanced Features
Connecting to the Virtual Servers
Once configured, anyone on the Internet can connect to your Virtual Servers. They must use
the Internet IP Address (the IP Address allocated to you by your ISP).
e.g.
http://203.70.212.52
ftp://203.70.212.52
It is more convenient if you are using a Fixed IP Address from your ISP, rather than Dynamic.
However, you can use the Dynamic DNS feature, described in the following section, to allow
users to connect to your Virtual Servers using a URL, rather than an IP Address.
Dynamic DNS (Domain Name Server)
This free service is very useful when combined with the Virtual Server feature. It allows
Internet users to connect to your Virtual Servers using a URL, rather than an IP Address.
This also solves the problem of having a dynamic IP address. With a dynamic IP address, your
IP address may change whenever you connect, which makes it difficult to connect to you.
The Service works as follows:
•
You must register for the service at http://www.dyndns.org (Registration is free).
•
Your password will be E-mailed to you.
•
After registration, enter and save your DDNS username and password on this screen, and
also your preferred Domain name.
•
If your preferred Domain name is unavailable, a message will be displayed. Enter another
name, keep trying until you find some variation which is available.
•
The UniGateway EH-2101W will then automatically ensure that your current IP Address
is recorded at http://www.dyndns.org
•
From the Internet, users will now be able to connect to your Virtual Servers (or DMZ PC)
using your Domain name, as shown on this screen.
Dynamic DNS Screen
Select Advanced on the main menu, then Dynamic DNS, to see a screen like the following:
Figure 33: DDNS Screen
59
Data - Dynamic DNS Screen
DDNS Service
DDNS Service
•
You must sign up first to create a new account before using the
service. The service is free.
•
Click this link to connect to the www.dyndns.org Web site.
•
Your initial password will be E-mailed to you; you can change
this later if you wish.
DDNS Data
User Name
Enter the "User name" specified at the www.dyndns.org Web site
when you registered.
Password
Enter your current password for www.dyndns.org
Desired Domain
•
Enter your the preferred domain name.
•
The name should consist only of letters and the hyphen (dash).
Using any other characters may cause problems.
•
The "DDNS Status" area will indicate whether or not your
request was successful.
•
Once allocated to you, the Domain name can NOT be changed,
nor can you obtain another. If you need to change your Domain
name, you must terminate your account at www.dyndns.org (The
domain name will be released.) You can then open a new account.
DDNS Status
This message is returned by the DDNS Server at www.dyndns.org
After you "Save", check here to see if your desired Domain name
was successfully allocated to you.
60
Advanced Features
Remote Management
This feature allows you to manage the UniGateway EH-2101W via the Internet.
Figure 34: Remote Management Screen
Data - Remote Management Screen
Remote Management
Enable Remote
Management
Enable to allow management via the Internet. If Disabled, this device
will ignore management connection attempts from the Internet.
Port Number
Enter a port number between 1024 and 65535 (8080 is recommended). This port number must be specified when you connect (see
below).
Note: The default port number for HTTP (Web) connections is port
80, but using port 80 here will prevent the use of a Web "Virtual
Server" on your LAN. (See Advanced Internet - Virtual Servers)
Current IP Address
You must use this IP Address to connect (see below).
This IP Address is allocated by your ISP. But if using a Dynamic IP
Address, this value can change each time you connect to your ISP.
So it is better if your ISP allocates you a Fixed IP Address.
To connect from a remote PC via the Internet
1.
2.
Ensure your Internet connection is established, and start your Web Browser.
In the "Address" bar, enter "HTTP://" followed by the Internet IP Address of the UniGateway EH-2101W. If the port number is not 80, the port number is also required. (After
the IP Address, enter ":" followed by the port number.)
e.g.
HTTP://123.123.123.123:8080
This example assumes the WAN IP Address is 123.123.123.123, and the port number is 8080.
61
7
Chapter 7
Dial-in
This Chapter explains how to use the UniGateway EH-2101W's RAS Dial-in
facility.
Overview
•
Each Dial-in user should have a separate log-in and password. Each person requiring dialin access is entered in the UniGateway EH-2101W's user database, using the Dial-in Users screen.
•
The dial-in user can use their Dial-up Networking software, as used for Internet access, to
connect to the UniGateway EH-2101W.
•
Once connected, the Dial-in user can access TCP/IP-based resources, such as a Web
Server, FTP Sever, E-mail Server, … (Microsoft networking services are not available.)
•
The Dial-in user can also access the Internet via the UniGateway EH-2101W's WAN port.
Dial-in Screen
Figure 35: Dial-in Screen
62
Dial-in
Data - Dial-in Users Screen
Modem
Modem
Modem Properties
Button
Serial Line Speed
•
If using a permanent connection or leased line, select "Permanent Connection (leased line)".
•
If your modem or ISDN TA is in the drop-down list, just select
it.
•
If your modem is not in the list, select the appropriate "Standard Modem" entry and test to see if this works.
•
If the "Standard Modem" selection does not work, select
"User-defined", then click the Modem Properties button to
configure the modem correctly.
•
This button is only operational for the "User-defined" modem
type.
•
Click this button to open the Modem Properties screen and
allow changing of the modem's properties. See Modem Properties Screen later in this Chapter for details.
Select the speed which is equal to or below the fastest SERIAL line
speed (NOT phone line speed) of your modem. Available speeds
range from 4.8K to 460.8K (bps).
Dial-in Settings
Enable Dial-in
Disconnect after
Idle Time
•
If checked, the serial port is available for dial-in access. Otherwise, any attempt to dial-in will be blocked.
•
If Internet Access is also enabled, Dial-in users may find it
difficult to connect because the telephone line is in use. Reducing the Disconnect after Idle Time-out setting for Internet
Access to 1 minute may help.
•
Only authorized users can use the Dial-in connection.
•
See the Dial-in section of the User Manual for details on
setting up the remote PC to use the Dial-in facility.
•
If checked, the Dial-in connection will be terminated after
being idle for the time specified.
•
If not checked, the Dial-in connection will never be terminated.
63
Dial-in PPP
Link
Select the desired security option for log-in:
•
PAP has widespread support; almost all communications
systems support it. This is the default setting, and compatible
with the default settings for Dial-up Networking in Windows.
•
CHAP is more secure than PAP; the password is encrypted
before transmission. If it is selected, the dial-in clients must
also support CHAP in order to connect.
•
MS CHAP is the Microsoft version of CHAP, used on Windows platforms. If all dial-in clients are using Windows 95 or
later, you can choose this option.
•
None means no checking is performed.
Warning!
If you choose "None", no User Name/Password authentication is
performed on dial-in. Anyone can connect; this is a major security
risk.
Buttons
Dial-in Users
Connection
Status
Click this to open a sub-window which allows you to manage the
users who can use the Dial-in feature.
•
By default, the "guest" user is defined, but does NOT have
Dial-in permission.
•
If the PPP setting above is set to "None" (not recommended),
then it is not necessary to create dial-in users.
•
While it is possible to all users to use the same Username/password for Dial-in, the recommended approach is to
create a separate entry for each person who needs Dial-in access.
Click this to open a sub-window which contains details of the
current connection, if any, on the Serial Port. Refer to Connection
Status - Serial Port in Chapter 5 for further details.
64
Dial-in
Dial-in Users Screen
This screen is reached via the Dial-in Users button on the Dial-in screen.
•
All defined users are listed. If you have not defined any users, only the "guest" user will
be listed.
•
When a user is selected, their data is displayed in the "User Properties" area, where it can
be modified if desired.
Figure 36: Dial-in Users Screen
Data - Dial-in Users Screen
User List
User List
•
This lists all users who currently exist.
•
The "guest" user is pre-defined, and will always be in the list.
•
Select the user you wish to change. Data for the selected user will be
shown in the "User Properties" fields.
•
Enter the name for the new user here. Spaces, punctuation, and
special characters must NOT be used in the name.
•
User names are case insensitive (case is ignored), so you can not
have 2 names which differ only by case.
•
When a remote user establishes a Dial-in connection, they will be
prompted for the this User name and the password (below).
User Properties
User Name
Password
The password for this user. The user must provide this password when
they establish a Dial-in connection.
Verify
Re-enter the password for this user, to ensure it is correct.
Enable dial-in
access
If checked, Dial-in access is available for this user.
If not checked, a Dial-in connection will not be allowed.
65
Enforce connection time
limit
If checked, each connection will be terminated if it exceeds the time
limit. If not checked, each connection will continue until terminated by
the remote user.
Call back
Select the desired option
•
Disabled - call back is not used.
•
Roaming - the user is prompted for the telephone number, and then
called back.
•
Fixed - the telephone number entered here is always used to call
back the user. If this option is selected, a telephone number must be
entered in the Telephone number field provided.
Adding a new user:
•
Click the "Clear Form" button to prepare the form for data entry.
•
Enter the required data
•
Click "Add" to add this user to the "User List"
Modifying a user
•
Select the desired user in the list. The user's details will appear in the "User Properties"
area.
•
Modify the required data.
•
Click "Update" to save your changes. (You must "Update" after changes to each user.)
Deleting a user
•
Select the desired user in the list. The user's details will appear in the "User Properties"
area.
•
Click "Delete" to remove this user from the "User List" (Note: The "guest" user cannot be
renamed or deleted.)
66
Dial-in
Modem Properties Screen
This screen is reached via the Modem Properties button on the Dial-in screen.
•
Normally, it is not necessary to change these settings.
•
Refer to your Modem's user manual to determine the "AT" commands it supports.
Figure 37: Modem Properties Screen
Data - Modem Properties Screen
Initial String
This is a series of AT commands used to correctly configure your
modem or ISDN TA.
See Appendix C - AT Commands for further details about the
required Initial String settings and standard AT commands.
Dial Type
Dial String
Auto Answer Commands
•
Select Tone, Pulse or Other to match your system.
•
For Other, you must provide the Dial String.
•
This is the "AT" command sent to your modem before
dialing. For example, "ATDT" tells your modem to use Tone
Dialing.
•
Check your modem's documentation to find the correct AT
commands.
•
Enter the command strings which turn the "auto-answer"
function in your modem (or ISDN TA) ON and OFF.
•
Check your modem's documentation to find these commands.
67
Client PCs - Using Dial-in
This section describes how to configure your PC to use the UniGateway EH-2101W's RAS
Dial-in feature.
To use the RAS Dial-in feature of the UniGateway EH-2101W:
•
An Analog Modem or ISDN TA must be connected to the Serial Port on the UniGateway
EH-2101W.
•
The UniGateway EH-2101W's Dial-in screen must be configured for Dial-in access, and
Dial-in Users must be created. See Chapter 7 - Dial-in for details.
•
A suitable Dial-up connection must be created on your PC, as described below.
Creating a Dial-in Connection in Windows
You can use the standard Windows Dial-up Networking software normally used for Internet
access. The procedure is as follows:
1. Ensure your modem is installed and working.
2. Select My Computer, then Dial-up Networking.
3. Click Make new Connection, and step through the Wizard.
4. Give this connection a suitable name.
5. Enter the area code and telephone number to connect to the UniGateway EH-2101W.
6. Continue the Wizard until completed.
7. The default values for this connection will work with the UniGateway EH-2101W's
default values. If necessary, you can adjust the Properties for the connection:
•
In the Dial-up Networking window, select the connection.
•
Right-click, and select Properties to see a screen like the one below.
Figure 38: Dial-up Networking Properties
68
Dial-in
Dial-up Networking Properties
Log on to network
This setting refers to a logon to a Server on your LAN,
not the login to the UniGateway EH-2101W.
This is checked by default, but is not required, and will
cause a minor delay in establishing a connection.
Enable software compression
Normally, this should be checked, but the UniGateway
EH-2101W will function with either Checked or Unchecked.
Required encrypted password
The Unchecked state corresponds to the "PAP" setting
on the UniGateway EH-2101W's Dial-in screen.
The Checked setting corresponds to the "MSCHAP"
setting on the UniGateway EH-2101W's Dial-in screen.
Require data encryption
This must NOT be checked.
Network Protocols
NetBEUI and IPX/SPX can be disabled.
TCP/IP Settings
The default settings should not be changed.
Using the Dial-in Connection
1.
2.
3.
4.
In the Dial-up Networking window, double-click the connection to start the dial-in process.
When prompted for a user name and password, enter the Name and Password assigned to
you (this is done on the UniGateway EH-2101W's User Details screen).
If the UniGateway EH-2101W's Callback feature is enabled, the connection will then be
terminated, and your modem must wait for the incoming call from the UniGateway EH2101W's modem.
Upon connection, the UniGateway EH-2101W will allocate an IP Address to your PC. To
other LAN users and devices, you will appear to be a normal LAN user. However, Microsoft Networking features are not available.
69
Chapter 8
Advanced Configuration
8
This Chapter explains the settings available via the Advanced configuration
section of the "Advanced" menu.
Overview
Normally, it is not necessary to use these screens, or change any settings. These screens and
settings are provided to deal with non-standard situations, or to provide additional options for
advanced users.
The settings available are:
PC Database
This is the list of PCs shown when you select the "DMZ PC" or a
"Virtual Server". This database is maintained automatically, but you
can add and delete entries for PCs which use a Fixed (Static) IP
Address.
Options
Enable or Disable various options.
Printer Port
Configure the Printer port for use with AppleTalk or Unix. (For
Windows, no configuration is required or possible.)
MAC Address
Set the MAC (hardware) address used on the Internet (WAN port)
interface. This is required only if your ISP has recorded the MAC
(hardware) address you should use.
Routing
Only required if your LAN has other Routers or Gateways.
70
Advanced Configuration
PC Database Screen
The PC Database is used whenever you need to select a PC (e.g. for the "DMZ" PC). It eliminates the need to enter IP addresses. An example PC Database screen is shown below.
Figure 39: PC Database Screen
•
PCs which are "DHCP Clients" are automatically added to the database, and updated as
required.
•
By default, non-Server versions of Windows act as "DHCP Clients"; this setting is called
"Obtain an IP Address automatically".
•
The UniGateway EH-2101W uses the "Hardware Address" to identify each PC, not the
name or IP address. The "Hardware Address" can only change if you change the PC's network card or adapter.
•
This system means you do NOT need to use Fixed (static) IP addresses on your LAN.
However, you can add PCs using Fixed (static) IP Addresses to the PC database if required.
Data - PC Database Screen
PC Database
PCs
This lists all current entries. Data displayed is name (IP Address) type.
The "type" indicates whether the PC is connected to the LAN or
WLAN (Wireless LAN).
Name
If adding a new PC to the list, enter its name here. It is best if this
matches the PC's "hostname".
IP Address
Enter the IP Address of the PC. The PC will be sent a "ping" to determine its hardware address. If the PC is not available (not connected, or
not powered On) you will not be able to add it.
Buttons
Add
This will add the new PC to the list. The PC will be sent a "ping" to
determine its hardware address. If the PC is not available (not connected, or not powered On) you will not be able to add it.
71
Delete
Delete the selected PC from the list. This should be done in 2 situations:
•
The PC has been removed from your LAN.
•
The entry is incorrect.
Refresh
Update the data on screen.
Generate Report
Display a read-only list showing full details of all entries in the PC
database.
72
Advanced Configuration
Options
This screen allows advanced users to enter or change a number of settings. For normal operation, there is no need to use this screen or change any settings.
An example Options screen is shown below.
Figure 40: Options Screen
Data - Options Screen
Backup DNS
IP Address
Enter the IP Address of the DNS (Domain Name Servers) here. These
DNS will be used only if the primary DNS is unavailable.
TFTP
Enable Firmware Upgrade
using TFTP
•
If enabled, TFTP (Trivial FTP) can be used to upgrade the firmware in this device. This is normally not required; a Windows
utility is available for this purpose.
•
You must obtain the firmware upgrade file first; instructions for
using TFTP will be available with the upgrade.
•
UPnP (Universal Plug and Play) allows automatic discovery and
configuration of equipment attached to your LAN. UPnP is by
supported by Windows ME, XP, or later.
•
If Enabled, this device will be visible via UPnP.
•
If Disabled, this device will not be visible via UPnP.
UPnP
Enable UPnP
Services
73
Allow Configuration...
Allow Internet
access to be
disabled
•
If checked, then UPnP users can change the configuration.
•
If Disabled, UPnP users can only view the configuration. But
currently, this restriction only applies to users running Windows
XP, who access the Properties via UPnP. (e.g. Right - click the
EH-2101W in My Network Places, and select Properties)
•
If checked, then UPnP users can disable Internet access via this
device.
•
If Disabled, UPnP users can NOT disable Internet access via this
device. But currently, this restriction only applies to users running
Windows XP, who access the Properties via UPnP. (e.g. Right click the EH-2101W in My Network Places, and select Properties)
Firewall
Enable DoS
Firewall
If enabled, DoS (Denial of Service) attacks will be detected and
blocked. The default is enabled. It is strongly recommended that this
setting be left enabled.
Note:
Threshold
•
A DoS attack does not attempt to steal data or damage your PCs,
but overloads your Internet connection so you can not use it - the
service is unavailable.
•
The UniGateway EH-2101W uses "Stateful Inspection" technology. This system can detect situations where individual TCP/IP
packets are valid, but collectively they become a DoS attack.
This setting affects the number of "half-open" connections allowed.
•
A "half-open" connection arises when a remote client contacts the
Server with a connection request, but then does not reply to the
Server's response.
•
While the optimum number of "half-open" connections allowed
(the "Threshold") depends on many factors, the most important
factor is the available bandwidth of your Internet connection.
•
Select the setting to match the bandwidth of your Internet connection.
74
Advanced Configuration
Printer Port
Normally, these settings do not need to be changed.
Figure 41: Printer Port Screen
AppleTalk
AppleTalk zone
This determines which Apple systems can gain access to this
printer. The default value is *, which allows access by all systems. If you enter another zone name, only Apple systems in that
zone will be able to access the printer.
Printer Object Type
Sets the type of printer attached. The default setting is "LaserWriter"
If the "Printer Object Type" is incorrect, the printer will not be
visible from your Apple system.
Communication
Protocol
You must use the same setting as your Macintosh.
Logical Printers
No (L1, L2, L3)
Logical printer configuration is only required if using LPD
printing under Linux or Unix. Otherwise, these settings are
ignored
There are 3 Logical Printers (Ports), named L1, L2, and L3.
These names can not be changed, and must be used when selecting the logical printer from your Unix system.
Pre-string (HEX)
Enter (in HEX) the series of printer commands to be sent to the
attached printer BEFORE each print job.
Post-string (HEX)
Enter (in HEX) the series of printer commands to be sent to the
attached printer AFTER each print job.
LF to CR/LF
If checked, Unix-style LF (line feed) characters at the end of each
line will be converted to CR/LF (carriage return/line feed) pairs,
as used in MSDOS and Windows.
75
MAC Address
The MAC (hardware) address is a low-level network identifier. It may be called "MAC Address", "Hardware Address", or "Physical Address". On a PC, this address is associated with
the Network card or adapter. The address on the MAC Address screen is the address on the
Internet (WAN port) interface, and has no effect on the LAN interface.
•
If your ISP asks for the "Network Adapter Address", "Physical Address", "Hardware
Address", or "MAC Address" for the PC the DSL/Cable modem is connected to, provide
this value.
•
If your ISP has already recorded a MAC address, you can change the address used by the
UniGateway EH-2101W to match the address recorded by your ISP.
MAC Address Screen
Select MAC Address from the Advanced menu to reach a screen like the example below.
Figure 42: MAC address screen
Data - MAC address Screen
MAC (hardware)
Address
The current MAC (hardware) address is displayed.
If your ISP has recorded a Hardware Address, you can "spoof" that
address by entering it in the address field. The hardware address
consists of 12 characters, where each character is a digit (0..9) or a
character between A and F.
Buttons
Default
Inserts the default MAC address into the MAC address field. You
must click "Save" to actually change the address used.
Copy from PC
Inserts the MAC address from your PC into the MAC address field.
You must click "Save" to actually change the address used.
Save
Save your changes to the UniGateway EH-2101W.
Cancel
Reverse any changes made since the last "Save".
If the MAC address is changed, the UniGateway
EH-2101W must restart.
76
Advanced Configuration
Routing
Overview
•
If you don't have other Routers or Gateways on your LAN, you can ignore the "Routing"
page completely.
•
If the UniGateway EH-2101W is only acting as a Gateway for the local LAN segment,
ignore the "Routing" page even if your LAN has other Routers.
•
If your LAN has a standard Router (e.g. Cisco) on your LAN, and the UniGateway EH2101W is to act as a Gateway for all LAN segments, enable RIP (Routing Information
Protocol) and ignore the Static Routing table.
•
If your LAN has other Gateways and Routers, and you wish to control which LAN segments use each Gateway, do NOT enable RIP (Routing Information Protocol). Configure
the Static Routing table instead. (You also need to configure the other Routers.)
•
If using Windows 2000 Data center Server as a software Router, enable RIP on the UniGateway EH-2101W, and ensure the following Windows 2000 settings are correct:
•
Open Routing and Remote Access
•
In the console tree, select Routing and Remote Access , [server name], IP Routing,
RIP
•
In the "Details" pane, right-click the interface you want to configure for RIP version
2, and then click "Properties".
•
On the "General" tab, set Outgoing packet protocol to "RIP version 2 broadcast", and
Incoming packet protocol to "RIP version 1 and 2".
Routing Screen
The routing table is accessed by the Routing link on the Advanced screen.
Using this Screen
Generally, you will use either RIP (Routing Information Protocol) OR the Static Routing
Table, as explained above, although is it possible to use both methods simultaneously.
Static Routing Table
•
If RIP is not used, an entry in the routing table is required for each LAN segment on your
Network, other than the segment to which this device is attached.
•
The other Routers must also be configured. See Configuring Other Routers on your LAN
later in this chapter for further details and an example.
77
Figure 43: Routing Screen
Data - Routing Screen
RIP
Enable RIP
Check this to enable the RIP (Routing Information Protocol) feature
of the UniGateway EH-2101W.
The UniGateway EH-2101W supports RIP 1 only.
Static Routing
Static Routing
Table Entries
Properties
This list shows all entries in the Routing Table.
•
The "Properties" area shows details of the selected item in the
list.
•
Change any the properties as required, then click the "Update"
button to save the changes to the selected entry.
•
Destination Network - The network address of the remote LAN
segment. For standard class "C" LANs, the network address is
the first 3 fields of the Destination IP Address. The 4th (last)
field can be left at 0.
•
Network Mask - The Network Mask for the remote LAN
segment. For class "C" networks, the default mask is
255.255.255.0
•
Gateway IP Address - The IP Address of the Gateway or
Router which the UniGateway EH-2101W must use to communicate with the destination above. (NOT the router attached to
the remote segment.)
•
Metric - The number of "hops" (routers) to pass through to
reach the remote LAN segment. The shortest path will be used.
The default value is 1.
78
Advanced Configuration
Buttons
Apply
Save the RIP setting. This has no effect on the Static Routing Table.
Add
Add a new entry to the Static Routing table, using the data shown in
the "Properties" area on screen. The entry selected in the list is
ignored, and has no effect.
Update
Update the current Static Routing Table entry, using the data shown
in the "Properties" area on screen.
Delete
Delete the current Static Routing Table entry.
Clear Form
Clear all data from the "Properties" area, ready for input of a new
entry for the Static Routing table.
Generate Report
Generate a read-only list of all entries in the Static Routing table.
Configuring Other Routers on your LAN
It is essential that all IP packets for devices not on the local LAN be passed to the UniGateway
EH-2101W, so that they can be forwarded to the external LAN, WAN, or Internet. To achieve
this, the local LAN must be configured to use the UniGateway EH-2101W as the Default
Route or Default Gateway.
Local Router
The local router is the Router installed on the same LAN segment as the UniGateway EH2101W. This router requires that the Default Route is the UniGateway EH-2101W itself.
Typically, routers have a special entry for the Default Route. It should be configured as follows.
Destination IP Address
Normally 0.0.0.0, but check your router documentation.
Network Mask
Normally 0.0.0.0, but check your router documentation.
Gateway IP Address
The IP Address of the UniGateway EH-2101W.
Metric
1
Other Routers on the Local LAN
Other routers on the local LAN must use the UniGateway EH-2101W's Local Router as the
Default Route. The entries will be the same as the UniGateway EH-2101W's local router, with
the exception of the Gateway IP Address.
•
For a router with a direct connection to the UniGateway EH-2101W's local Router, the
Gateway IP Address is the address of the UniGateway EH-2101W's local router.
•
For routers which must forward packets to another router before reaching the UniGateway
EH-2101W's local router, the Gateway IP Address is the address of the intermediate
router.
79
Static Routing - Example
Router A
(192.168.1.80)
(192.168.0.100)
Segment 1
Segment 0
(192.168.1.xx)
(192.168.0.xx)
Router B
(192.168.1.90)
(192.168.2.70)
Wireless
Gateway
(192.168.0.1)
Segment 2
(192.168.2.xx)
Figure 44: Routing Example
For the UniGateway EH-2101W's Routing Table
For the LAN shown above, with 2 routers and 3 LAN segments, the UniGateway EH-2101W
requires 2 entries as follows.
Entry 1 (Segment 1)
Destination IP Address
192.168.1.0
Network Mask
255.255.255.0 (Standard Class C)
Gateway IP Address
192.168.0.100 (UniGateway EH-2101W's local
Router)
Metric
1
Entry 2 (Segment 2)
Destination IP Address
192.168.2.0
Network Mask
255.255.255.0 (Standard Class C)
Gateway IP Address
192.168.0.100
Metric
2
For Router A's Default Route
Destination IP Address
0.0.0.0
Network Mask
0.0.0.0
Gateway IP Address
192.168.0.1 (UniGateway EH-2101W's IP
Address)
For Router B's Default Route
Destination IP Address
0.0.0.0
Network Mask
0.0.0.0
Gateway IP Address
192.168.1.80 (UniGateway EH-2101W's local
router)
80
Appendix A
Troubleshooting
A
This Appendix covers the most likely problems and their solutions.
Overview
This chapter covers some common problems that may be encountered while using the UniGateway EH-2101W and some possible solutions to them. If you follow the suggested steps
and the UniGateway EH-2101W still does not function properly, contact your dealer for
further advice.
General Problems
Problem 1:
Can't connect to the UniGateway EH-2101W to configure it.
Solution 1:
Check the following:
•
The UniGateway EH-2101W is properly installed, LAN connections
are OK, and it is powered ON.
•
Ensure that your PC and the UniGateway EH-2101W are on the same
network segment. (If you don't have a router, this must be the case.)
•
If your PC is set to "Obtain an IP Address automatically" (DHCP
client), restart it.
•
If your PC uses a Fixed (Static) IP address, ensure that it is using an IP
Address within the range 192.168.0.2 to 192.168.0.254 and thus compatible with the UniGateway EH-2101W's default IP Address of
192.168.0.1.
Also, the Network Mask should be set to 255.255.255.0 to match the
UniGateway EH-2101W.
In Windows, you can check these settings by using Control PanelNetwork to check the Properties for the TCP/IP protocol.
Internet Access
Problem 1:
When I enter a URL or IP address I get a time out error.
Solution 1:
A number of things could be causing this. Try the following troubleshooting
steps.
•
Check if other PCs work. If they do, ensure that your PCs IP settings
are correct. If using a Fixed (Static) IP Address, check the Network
Mask, Default gateway and DNS as well as the IP Address.
•
If the PCs are configured correctly, but still not working, check the
UniGateway EH-2101W. Ensure that it is connected and ON. Connect
to it and check its settings. (If you can't connect to it, check the LAN
and power connections.)
•
If the UniGateway EH-2101W is configured correctly, check your
Internet connection (DSL/Cable modem etc) to see that it is working
correctly.
81
Problem 2:
Some applications do not run properly when using the UniGateway.
Solution 2:
The UniGateway EH-2101W processes the data passing through it, so it is
not transparent. Use the Special Applications feature to allow the use of
Internet applications which do not function correctly.
If this does solve the problem you can use the DMZ function. This should
work with almost every application, but:
•
It is a security risk, since the firewall is disabled.
•
Only one (1) PC can use this feature.
Wireless Access
Problem 1:
My PC can't locate the Wireless Access Point.
Solution 1:
Check the following.
•
Your PC is set to Infrastructure Mode. (Access Points are always in
Infrastructure Mode)
•
The SSID on your PC and the Wireless Access Point are the same.
Remember that the SSID is case-sensitive. So, for example "Workgroup" does NOT match "workgroup".
•
Both your PC and the Wireless Access Point must have the same setting
for WEP. The default setting for the UniGateway EH-2101W is disabled, so your wireless station should also have WEP disabled.
•
If WEP is enabled on the UniGateway EH-2101W, your PC must have
WEP enabled, and the key tables (for 64 Bit encryption) or key (for 128
Bit encryption) must match.
•
If the UniGateway EH-2101W's Wireless screen is set to Allow LAN
access to selected Wireless Stations only, then each of your Wireless
stations must have been selected, or access will be blocked.
•
To see if radio interference is causing a problem, see if connection is
possible when close to the Wireless Access Point.
Remember that the connection range can be as little as 100 feet in poor
environments.
Problem 2:
Wireless connection speed is very slow.
Solution 2:
The wireless system will connect at the highest possible speed, depending
on the distance and the environment. To obtain the highest possible connection speed, you can experiment with the following:
•
Access Point location.
Try adjusting the location and orientation of the Access Point.
•
Wireless Channel
If interference is the problem, changing to another channel may show a
marked improvement.
•
Radio Interference
Other devices may be causing interference. You can experiment by
switching other devices Off, and see if this helps. Any "noisy" devices
should be shielded or relocated.
•
RF Shielding
Your environment may tend to block transmission between the wireless
stations. This will mean high access speed is only possible when close
to the Access Point.
82
Appendix A - Troubleshooting
Printing
Problem 1:
When I tried to install the Printing software for Peer-to-Peer printing,
I received an error message and the installation was aborted..
Solution 1:
This may be caused by an existing installation of the printer port software.
Before attempting another installation:
•
Remove the existing installation
•
Restart your PC
To remove an existing printer port installation:
1. Open Start - Settings - Control Panel - Add/Remove Programs
2. Look for an entry with a name like "Shared Port", "Shared Printer
Port", "Print Server Driver" or "Print Server Port".
3. Select this item, click "Add/Remove", and confirm the deletion.
Problem 2:
I am using Windows 95, and the Printing software installed and ran,
but when I selected a port on a EH-2101W and clicked "Add", the
printer was not installed.
Solution 2:
Try installing the printer using the standard Windows tools, as follows:
1. Start the Add Printer Wizard.
2. Select Network Printer when prompted "How is the printer attached to
your Computer?", and click Next.
3. When prompted for the Network Path or Queue, enter a dummy value
such as \\123, as shown below. (Do NOT select Yes for "Do you print
for MS-DOS programs?")
4.
5.
6.
The printer wizard will display a message stating that "The Network
Printer is off-line". This is OK. Continue the Add Printer Wizard until
finished.
When finished, go to Control Panel-Printers. The printer icon will be
grayed out indicating the printer is not ready.
Right-click the Printer, and select Properties. Then select the Details
tab, as shown below.
83
7.
Click the Add Port button. On the resulting screen, select Other, then
Shared Port, as the port to add, as shown below.
8.
Click OK to see the Print Port Configuration screen, as shown below.
84
Appendix A - Troubleshooting
9.
Click the Browse Device button, select the desired Broadband Wireless Gateway, and click OK.
10. Click OK to return to the Printers folders, and right-click on the
Printer. Ensure that the Work off-line option is NOT checked.
The Printer should no longer be grayed out, and is ready for use.
Problem 3:
On my Macintosh, I can't find the printer connected to the UniGateway EH-2101W..
Solution 3:
Check the following settings on the UniGateway EH-2101W's Printer
Port screen, accessed from the "Advanced" menu:
•
AppleTalk Zone - If the zone is set to a zone name, only computers
in that zone will be able to use the printer.
•
Printer Object Type - If this is incorrect, the printer will not be
visible from the Macintosh..
85
Dial-in Access
Problem 1:
Remote PC can't connect to the UniGateway EH-2101W.
Solution 1:
Check the settings on the UniGateway EH-2101W
•
Dial-in is Enabled.
•
User has been created, and has Dial-in permission.
•
Call-back settings are correct for this user.
•
Modem settings are correct.
•
Both the UniGateway EH-2101W and the remote PC are using the
same settings for the login authentication (PAP, CHAP, MSCHAP).
Check the Modem
•
Modem is properly connected and powered on.
•
The modem is working correctly, and the Remote user is dialing the
correct telephone number for the modem.
This can be checked by listening to the modem. You should hear the
UniGateway EH-2101W's modem answer the incoming call.
•
If the call is received but not answered, the modem's "Autoanswer" feature is turned OFF. To turn it on, add the appropriate
AT command to the Initial String in the on the UniGateway EH2101W's Modem Properties screen. See Chapter 6 for details of
the Modem Properties screen, and Appendix C for more information on AT commands.
•
If the call is answered, but no connection is established, then either the modems are unable to negotiate a connection, or the login
to the UniGateway EH-2101W has failed.
This can be checked by examining the Log file for the Remote
PC. See Finding the current Initial String in Appendix C for instructions on enabling and viewing the Log file.
Check the Remote PC
•
Ensure that both the UniGateway EH-2101W and the remote PC are
using the same settings for the login authentication (PAP, CHAP,
MSCHAP).
•
When prompted for "User Name" and "Password", the remote user
must enter the correct User Name and Password, as configured on the
UniGateway EH-2101W's User Details screen.
•
The modem Log file on the remote PC may provide useful information about the cause of the connection failure. See Finding the
current Initial String in Appendix C for instructions on enabling and
viewing the Log file.
Problem 2:
Remote PC can connect, but can't access LAN resources.
Answer 2:
Only TCP/IP - based resources are available. Microsoft networking is
NOT supported. To gain access to your PC on the LAN, you need to
install and use a "Remote Control" program like PC Anywhere.
Problem 3:
On the LAN, there is an IP Address conflict involving the Dial-in PC.
How do I set the IP Address allocated to the Dial-in PC?
Answer 3:
This problem can only occur if the UniGateway EH-2101W's DHCP
S
i Di bl d
86
Appendix A - Troubleshooting
Server is Disabled.
In this situation, the DHCP Server must still allocate an IP Address to the
Dial-in user. To set this IP Address:
1. Connect to the UniGateway EH-2101W
2. On the LAN screen, locate the DHCP Server section, and set both the
Start IP Address and the Finish IP Address to the IP Address you
wish to be assigned to the Dial-in user.
3. Save these settings.
87
Appendix B
About Wireless LANs
B
This Appendix provides some background information about using Wireless
LANs (WLANs).
Modes
Wireless LANs can work in either of two (2) modes:
•
Ad-hoc
•
Infrastructure
Ad-hoc Mode
Ad-hoc mode does not require an Access Point or a wired (Ethernet) LAN. Wireless Stations (e.g. notebook PCs with wireless cards) communicate directly with each other.
Infrastructure Mode
In Infrastructure Mode, one or more Access Points are used to connect Wireless Stations
(e.g. Notebook PCs with wireless cards) to a wired (Ethernet) LAN. The Wireless Stations
can then access all LAN resources.
Access Points can only function in "Infrastructure" mode,
and can communicate only with Wireless Stations which are
set to "Infrastructure" mode.
BSS/ESS
BSS
A group of Wireless Stations and a single Access Point, all using the same ID (SSID), form a
Basic Service Set (BSS).
Using the same SSID is essential. Devices with different SSIDs are unable to communicate
with each other.
ESS
A group of Wireless Stations, and multiple Access Points, all using the same ID (ESSID), form
an Extended Service Set (ESS).
Different Access Points within an ESS can use different Channels. In fact, to reduce interference, it is recommended that adjacent Access Points SHOULD use different channels.
As Wireless Stations are physically moved through the area covered by an ESS, they will
automatically change to the Access Point which has the least interference or best performance.
This capability is called Roaming. (Access Points do not have or require Roaming capabilities.)
88
Appendix B - About Wireless LANs
Channels
The Wireless Channel sets the radio frequency used for communication.
•
Access Points use a fixed Channel. You can select the Channel used. This allows you to
choose a Channel which provides the least interference and best performance. In the USA
and Canada, 11 channel are available. If using multiple Access Points, it is better if adjacent Access Points use different Channels to reduce interference.
•
In "Infrastructure" mode, Wireless Stations normally scan all Channels, looking for an
Access Point. If more than one Access Point can be used, the one with the strongest signal
is used. (This can only happen within an ESS.)
•
If using "Ad-hoc" mode (no Access Point), all Wireless stations should be set to use the
same Channel. However, most Wireless stations will still scan all Channels to see if there
is an existing "Ad-hoc" group they can join.
WEP
WEP (Wired Equivalent Privacy) is a standard for encrypting data before it is transmitted.
This is desirable because it is impossible to prevent snoopers from receiving any data which is
transmitted by your Wireless Stations. But if the data is encrypted, then it is meaningless
unless the receiver can decrypt it.
If WEP is used, the Wireless Stations and the Access Point must have the same settings
for each of the following:
WEP
Off, 64 Bit, 128 Bit
Key
For 64 Bit encryption, the Key Table must match.
For 128 Bit encryption, the Key value must match.
WEP Authentication
Open System or Shared Key.
Wireless LAN Configuration
To allow Wireless Stations to use the Access Point, the Wireless Stations and the Access Point
must use the same settings, as follows:
Mode
On client Wireless Stations, the mode must be set to "Infrastructure".
(The Access Point is always in "Infrastructure" mode.)
SSID (ESSID)
Wireless Stations must use the same SSID (ESSID) as the Access Point
they wish to connect to.
WEP
The Wireless Stations and the Access Point must use the same settings
for WEP (Off, 64 Bit, or 128 Bit).
WEP Key: If WEP is enabled, the Key Table (for 64 Bit encryption) or
Key (for 128 Bit Encryption) must be the same on the Wireless Stations
and the Access Point.
WEP Authentication: If WEP is enabled, all Wireless Stations must
use the same setting as the Access Point (either "Open System" or
"Shared Key").
89
C
Appendix C
AT Commands
AT Commands
This Appendix details the "AT" commands used by modems and ISDN TAs. This information
is provided to assist users who are using the UniGateway EH-2101W's serial (RS232 port).
It is not relevant to Cable or DSL modems connected to the WAN (Ethernet) port.
Required Settings
For the UniGateway EH-2101W to use the Serial Port correctly, the modem or ISDN TA must
be set as follows.
Setting
AT Command
Fixed baud rate setting
AT&B1
RTS/CTS flow control
AT&K3
DCD to track the presence of a carrier
AT&C1
DTR off to hang-up modem
AT&D2
DSR always on
AT&S0
If your Modem or ISDN TA uses the commands above, then the Initial String would be as
follows:
AT&F&B1&K3&C1&D2&S0X4
Notes:
•
The command "AT&F" is used to set the modem to the factory default settings, to ensure a
consistent starting point.
•
For some Mircocom and other modems, the "ATX4" command is not sufficient - a "W2"
command (no "AT") must be used as well.
•
ISDN TAs may not use these commands; please check your user guide for your ISDN TA.
Finding the current Initial String
If your modem or ISDN TA is already working correctly using the PC's serial port, but you
don't know what the initialization string is, you can use the following procedure to find out.
1. Select My Computer, then Dial-Up Networking.
2. Select the icon for your connection, then Properties.
3. Click the Configure button, then the Connection tab, as shown below.
90
Appendix C - AT commands
Figure 45: Connection Properties (W95/98)
4.
Select Advanced to see the screen below.
Figure 46: Advanced Connection (W95/98)
5.
6.
7.
8.
Check the option Record a log file. Then click OK and exit.
Use Dial-up Networking to make your on-line connection normally. A log file
MODEMLOG.TXT will be created in your Windows directory.
Use Notepad or another editor to read and print the file MODEMLOG.TXT.
Examine the file to determine the Initial String value. It will be near the beginning of the
file, and look something like the example shown previously.
91
Standard AT Commands
Most modems use the standard AT commands, as shown in the following tables. Consult the
manual for your modem to set what AT commands it supports.
Note that the trailing "n" in many commands indicates a number.
The allowable numbers, and their effect, are listed below the command.
Command Description
<any key>
Terminate current connection attempt
+++
Escape sequence code, entered in data state, wait for modem to return to
command state
ATA
Force answer mode on-line
ATBn
Handshake operation
B0
Select ITU-T V.22 for 1200 bps communication
B1
Select Bell 212A for 1200 bps communication
ATD
Dial number and options that follow
P
Pulse dial
T
Tone dial
,
Pause for a specified time
;
Return to command state after dialing
!
Hook flash, call transfer
W
Wait for second dial tone
@
Wait for 5-second silence before proceeding, otherwise return O ANSWER"
R
Reverse Dial (Originate a call in answer mode)
ATDL
Dial last number
ATDSn
Dial number stored in NVRAM at position n. (n=0..9)
ATEn
Command mode local echo of keyboard commands
E0
Echo off
E1
Echo on
ATHn
On/Off hook control
H
Hang up modem
H0
Hang up (on hook), same as ATH
H1
Get off hook
ATIn
Display inquired information
I0
Display product code
I1
Display product information and ROM checksum
I2
Link status report
92
Appendix C - AT commands
ATLn
Speaker volume control. n=0-7
ATMn
Speaker control
M0
Speaker always off
M1
Speaker on until carrier is detected
M2
Speaker always on
M3
Speaker on after last digit dialed, off at carrier detect
ATNn
Ring volume control, n=0 disables ring function. (n=0..7)
ATO
Return to on-line state
ATP
Pulse dial
ATQn
Result code displayed
Q0
Modem returns result code
Q1
Modem does not return result code
Q2
Return result code but quiet in answer mode (will not show in AT&Vn)
ATS0=n
Number of rings required before modem answers. n=0 disables auto-answer.
ATSr.b=n
Set bit b of S-register r to n. (n=0 or 1)
ATSr.b?
Inquiry bit b of S-register r
ATSr=n
Set S-register r to value n, where n is a decimal number between 0-255
ATSr?
Display value stored in S-register r
ATT
Tone dial
ATVn
Verbal/Numeric result codes
V0
Display result codes in numeric form
V1
Display result codes in verbose form
ATXn
Result code options. (n=0..7)
ATZn
Reset the modem and set power-on profile. (n=0..4)
Zn
Reset modem and load user profile n (n=0..3)
Z4
Reset modem and load factory settings
AT$
Help, Basic command summary
AT&$
Help, Extended AT& command summary
AT*$
Help, Extended AT* command summary
93
Extended "AT&" Commands
(Includes RTS/CTS Flow Control Commands)
Command
Description
&Bn
Data rate, terminal-to-modem
&B1
&Cn
DTE/DCE rate fixed at DTE setting
Carrier Detect operations
&C1
&Dn
Carrier Detect tracks presence of carrier
Data Terminal Ready (DTR) operations
&D2
DTR off causes modem to hang up
&F
Load the default factory settings,
&Kn
Data flow control, DTE/DCE, n=0,3,4
&K0
Flow control disabled
&K3
Hardware (RTS/CTS) flow control
&K4
Software (XON/XOFF) flow control
&Sn
Data Set Ready (DSR)
&S0
DSR overridden, DSR always on
94
Appendix D
Specifications
D
Broadband Wireless Gateway
Model
UniGateway EH-2101W
Dimensions
184 mm (W) * 152mm (D) * 52 mm(H)
Operating Temperature
0° C to 40° C
Storage Temperature
-10° C to 70° C
Network Protocol:
TCP/IP
Network Interface:
6 Ethernet:
4 * 10/100BaseT (RJ45) LAN connection
1 * "uplink" 10/100BaseT LAN connection
1 * 10BaseT (RJ45) for WAN
PCMCIA Slot
1 Type II, 16bit bus
Wireless interface
Wireless Access Point via supplied PCMPIA card
IEEE 802.11b compatible, WEP security support, roaming
support
Printer Port
1 * parallel printer port
Serial Port
1 * RS232 9 pin male port
LEDs
19
Power Adapter
12 V DC External
FCC Statement:
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions:
(1) This device may not cause harmful interference.
(2) This device must accept any interference received, including interference that may
cause undesired operation.
CE Marking Warning
This is a Class B product. In a domestic environment this product may cause radio interference
in which case the user may be required to take adequate measures.
95
PCMCIA Wireless Card
Interface
PCMCIA 68pin, 16bit data
Standards
IEEE802.11b WLAN, PCMCIA 2.1, JEIDA 4.2
Frequency
2.4 to 2.4835GHz ( Industrial Scientific Medical Band )
Channels
Maximum 14 Channels, depending on regulatory authorities
Data Rate
11 / 5.5 / 2 / 1 Mbps
Coverage Area
Closed Space : 25m @11Mbps, 100m @5.5Mbps or lower
Power
DC +3.3V / 220mA
Output Power
13dBm (typical)
Receiver Sensitivity
-80dBm Min.
Operating Temperature 0o to 55oC
Storage Temperature
-25o to 70oC
Relative humidity
10% to 90%
96
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