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Wireless ADSL2+ Modem
Router DG834G User
Manual
NETGEAR
, Inc.
4500 Great America Parkway
Santa Clara, CA 95054 USA
202-10363-01
May 2008
© 2008 by NETGEAR, Inc. All rights reserved.
Trademarks
NETGEAR and the NETGEAR logo are trademarks of Netgear, Inc. Microsoft, Windows, and Windows NT are registered trademarks of Microsoft Corporation. Other brand and product names are registered trademarks or trademarks of their respective holders.
Statement of Conditions
In the interest of improving internal design, operational function, and/or reliability, NETGEAR reserves the right to make changes to the products described in this document without notice.
NETGEAR does not assume any liability that may occur due to the use or application of the product(s) or circuit layout(s) described herein.
FCC Statement
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
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, and (2) this device must accept any interference received, including interference that may cause undesired operation.
FCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate this equipment.
The radio module has been evaluated under FCC Bulletin OET 65C (01-01) and found to be compliant to the requirements as set forth in CFR 47 Sections, 2.1093, and 15.247 (b) (4) addressing RF Exposure from radio frequency devices. This model meets the applicable government requirements for exposure to radio frequency waves.
This equipment should be installed and operated with minimum distance 20cm between the radiator & your body. For product available in the USA market, only channels 1~11 can be operated. Selection of other channels is not possible
Federal Communications Commission (FCC) Radiation Exposure Statement
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. In order to avoid the possibility of exceeding the FCC radio frequency exposure limits, human proximity to the antenna shall not be less than 20 cm (8 inches) during normal operation.
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European Union Statement of Compliance
Hereby, NETGEAR, Inc. declares that this modem router is in compliance with the essential requirements and other relevant provisions of Directive 1999/5/EC.
Èesky
[Czech]
NETGEAR, Inc.
tímto prohlašuje, že tento
54 Mbps Wireless ADSL2+ Modem Router
Model DG834G
je ve shodì se základními požadavky a dalšími pøíslušnými ustanoveními smìrnice 1999/5/ES.
Dansk
[Danish]
Deutsch
[German]
Undertegnede
NETGEAR, Inc. erklærer herved, at følgende udstyr
54 Mbps Wireless
ADSL2+ Modem Router Model DG834G
overholder de væsentlige krav og øvrige relevante krav i direktiv 1999/5/EF.
Hiermit erklärt
NETGEAR, Inc.
, dass sich das Gerät
54 Mbps Wireless ADSL2+ Modem
Router Model DG834G
in Übereinstimmung mit den grundlegenden Anforderungen und den übrigen einschlägigen Bestimmungen der Richtlinie 1999/5/EG befindet.
Eesti
[Estonian]
English
Käesolevaga kinnitab
NETGEAR, Inc.
seadme
54 Mbps Wireless ADSL2+ Modem
Router Model DG834G
vastavust direktiivi 1999/5/EÜ põhinõuetele ja nimetatud direktiivist tulenevatele teistele asjakohastele sätetele.
Hereby,
NETGEAR, Inc.
, declares that this
54 Mbps Wireless ADSL2+ Modem Router
Model DG834G
is in compliance with the essential requirements and other relevant provisions of Directive 1999/5/EC.
Español
[Spanish]
Ελληνική
[Greek]
Français
[French]
Italiano
[Italian]
Por medio de la presente
NETGEAR, Inc.
declara que el
54 Mbps Wireless ADSL2+
Modem Router Model DG834G
cumple con los requisitos esenciales y cualesquiera otras disposiciones aplicables o exigibles de la Directiva 1999/5/CE.
ΜΕ ΤΗΝ ΠΑΡΟΥΣΑ
NETGEAR, Inc.
ΔΗΛΩΝΕΙ ΟΤΙ
54 Mbps Wireless ADSL2+ Modem
Router Model DG834G
ΣΥΜΜΟΡΦΩΝΕΤΑΙ ΠΡΟΣ ΤΙΣ ΟΥΣΙΩΔΕΙΣ ΑΠΑΙΤΗΣΕΙΣ ΚΑΙ
ΤΙΣ ΛΟΙΠΕΣ ΣΧΕΤΙΚΕΣ ΔΙΑΤΑΞΕΙΣ ΤΗΣ ΟΔΗΓΙΑΣ 1999/5/ΕΚ.
Par la présente
NETGEAR, Inc.
déclare que l'appareil
54 Mbps Wireless ADSL2+
Modem Router Model DG834G
est conforme aux exigences essentielles et aux autres dispositions pertinentes de la directive 1999/5/CE.
Con la presente
NETGEAR, Inc.
dichiara che questo
54 Mbps Wireless ADSL2+
Modem Router Model DG834G
è conforme ai requisiti essenziali ed alle altre disposizioni pertinenti stabilite dalla direttiva 1999/5/CE.
Latviski
[Latvian]
Lietuviø
[Lithuanian]
Ar šo
NETGEAR, Inc.
deklarç, ka
54 Mbps Wireless ADSL2+ Modem Router Model
DG834G
atbilst Direktîvas 1999/5/EK bûtiskajâm prasîbâm un citiem ar to saistîtajiem noteikumiem.
Šiuo
NETGEAR, Inc.
deklaruoja, kad šis
54 Mbps Wireless ADSL2+ Modem Router
Model DG834G
atitinka esminius reikalavimus ir kitas 1999/5/EB Direktyvos nuostatas.
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Nederlands
[Dutch]
Malti
[Maltese]
Magyar
[Hungarian]
Polski
[Polish]
Português
[Portuguese]
Slovensko
[Slovenian]
Slovensky
[Slovak]
Suomi
[Finnish]
Svenska
[Swedish]
Hierbij verklaart
NETGEAR, Inc.
dat het toestel
54 Mbps Wireless ADSL2+ Modem
Router Model DG834G
in overeenstemming is met de essentiële eisen en de andere relevante bepalingen van richtlijn 1999/5/EG.
Hawnhekk,
NETGEAR, Inc.
, jiddikjara li dan
54 Mbps Wireless ADSL2+ Modem Router
Model DG834G
jikkonforma mal-tiijiet essenzjali u ma provvedimenti orajn relevanti li hemm fid-Dirrettiva 1999/5/EC.
Alulírott,
NETGEAR, Inc.
nyilatkozom, hogy a
54 Mbps Wireless ADSL2+ Modem
Router Model DG834G megfelel a vonatkozó alapvetõ követelményeknek és az 1999/5/
EC irányelv egyéb elõírásainak.
Niniejszym
NETGEAR, Inc.
oœwiadcza, ¿e
54 Mbps Wireless ADSL2+ Modem Router
Model DG834G
jest zgodny z zasadniczymi wymogami oraz pozosta³ymi stosownymi postanowieniami Dyrektywy 1999/5/EC.
NETGEAR, Inc.
declara que este
54 Mbps Wireless ADSL2+ Modem Router Model
DG834G
está conforme com os requisitos essenciais e outras disposições da Directiva
1999/5/CE.
NETGEAR, Inc.
izjavlja, da je ta
54 Mbps Wireless ADSL2+ Modem Router Model
DG834G
v skladu z bistvenimi zahtevami in ostalimi relevantnimi doloèili direktive 1999/5/
ES.
NETGEAR, Inc.
týmto vyhlasuje, že
54 Mbps Wireless ADSL2+ Modem Router Model
DG834G
spåòa základné požiadavky a všetky príslušné ustanovenia Smernice 1999/5/
ES.
NETGEAR, Inc.
vakuuttaa täten että
54 Mbps Wireless ADSL2+ Modem Router Model
DG834G tyyppinen laite on direktiivin 1999/5/EY oleellisten vaatimusten ja sitä koskevien direktiivin muiden ehtojen mukainen.
Härmed intygar
NETGEAR, Inc.
att denna [utrustningstyp] står I överensstämmelse med de väsentliga egenskapskrav och övriga relevanta bestämmelser som framgår av direktiv
1999/5/EG.
A printed copy of the EU Declaration of Conformity certificate for this product is provided in the DG834G v5 product package.
Bestätigung des Herstellers/Importeurs
Es wird hiermit bestätigt, daß das 54 Mbps Wireless ADSL2+ Modem Router Model DG834G gemäß der im BMPT-
AmtsblVfg 243/1991 und Vfg 46/1992 aufgeführten Bestimmungen entstört ist. Das vorschriftsmäßige Betreiben einiger Geräte (z.B. Testsender) kann jedoch gewissen Beschränkungen unterliegen. Lesen Sie dazu bitte die
Anmerkungen in der Betriebsanleitung.
Das Bundesamt für Zulassungen in der Telekommunikation wurde davon unterrichtet, daß dieses Gerät auf den Markt gebracht wurde und es ist berechtigt, die Serie auf die Erfüllung der Vorschriften hin zu überprüfen.
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Certificate of the Manufacturer/Importer
It is hereby certified that the 54 Mbps Wireless ADSL2+ Modem Router Model DG834G has been suppressed in accordance with the conditions set out in the BMPT-AmtsblVfg 243/1991 and Vfg 46/1992. The operation of some equipment (for example, test transmitters) in accordance with the regulations may, however, be subject to certain restrictions. Please refer to the notes in the operating instructions.
Federal Office for Telecommunications Approvals has been notified of the placing of this equipment on the market and has been granted the right to test the series for compliance with the regulations.
Voluntary Control Council for Interference (VCCI) Statement
This equipment is in the second category (information equipment to be used in a residential area or an adjacent area thereto) and conforms to the standards set by the Voluntary Control Council for Interference by Data Processing
Equipment and Electronic Office Machines aimed at preventing radio interference in such residential areas.
When used near a radio or TV receiver, it may become the cause of radio interference.
Read instructions for correct handling.
Customer Support
Refer to the Support Information Card that shipped with your 54 Mbps Wireless ADSL2+ Modem Router Model
DG834G.
World Wide Web
NETGEAR maintains a World Wide Web home page that you can access at the universal resource locator (URL)
http://www.netgear.com
. A direct connection to the Internet and a Web browser such as Internet Explorer or
Mozilla Firefox are required.
Product and Publication Details
Model Number:
Publication Date:
Product Family:
Product Name:
DG834G v5
May 2008
Modem Router
54 Mbps Wireless ADSL2+ Modem Router Model DG834G
Home or Business Product:
Language:
Home
English
Publication Part Number:
202-10363-01
Publication Version Number:
1.0
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Contents
Wireless ADSL2+ Modem Router DG834G User Manual
Configuring Your Internet Connection
Using the Setup Wizard to Auto-Detect Your Internet Connection .................................1-4
Configuring Your Wireless Network and Security Settings
Using Push 'N' Connect (WPS) to Configure Your Wireless Network ..........................2-10
Connecting Additional Wireless Client Devices After WPS Setup .........................2-14
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Protecting Access to Your ADSL2+ Modem Wireless Router ........................................3-1
Viewing Modem Router Status and Usage Statistics ...............................................4-4
Running Diagnostic Utilities and Rebooting the Modem Router ...................................4-13
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Step 1: Configuring the Client-to-Gateway VPN Tunnel on the DG834Gv5 ............6-6
Step 2: Configuring the NETGEAR ProSafe VPN Client on the Remote PC .........6-10
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Troubleshooting Access to the Modem Router Main Menu ............................................7-2
Testing the Path from Your Computer to a Remote Device .....................................7-8
Setting Up the Client-to-Gateway VPN Configuration (Telecommuter Example) ........ B-12
Step 1: Configuring the Client-to-Gateway VPN Tunnel on the VPN Router at the
Step 2: Configuring the NETGEAR ProSafe VPN Client on the Remote PC at the
Viewing the PC Client’s Connection Monitor and Log Viewer ............................... B-22
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Viewing the VPN Router’s VPN Status and Log Information ................................ B-23
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About This Manual
The NETGEAR® Wireless ADSL2+ Modem Router DG834G User Manual describes how to install, configure, and troubleshoot the 54 Mbps Wireless ADSL2+ Modem Router Model
DG834G. The information in this manual is intended for readers with intermediate computer and
Internet skills.
Conventions, Formats, and Scope
The conventions, formats, and scope of this manual are described in the following paragraphs:
• Typographical Conventions. This manual uses the following typographical conventions:
Italic
Bold
Fixed
Italic
Emphasis, books, CDs, file and server names, extensions
User input, IP addresses, GUI screen text
Command prompt, CLI text, code
URL links
• Formats. This manual uses the following formats to highlight special messages:
Note: This format is used to highlight information of importance or special interest.
Tip: This format is used to highlight a procedure that will save time or resources.
Warning: Ignoring this type of note might result in a malfunction or damage to the equipment.
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Wireless ADSL2+ Modem Router DG834G User Manual
• Scope. This manual is written for the ADSL2+ Modem Wireless Router according to these specifications:
Product Version
Manual Publication Date
54 Mbps Wireless ADSL2+ Modem Router Model DG834G
May 2008
For more information about network, Internet, firewall, and VPN technologies, see the links to the
NETGEAR website in Appendix C, “Related Documents” .
Note: Product updates are available on the NETGEAR, Inc. website at
http://kbserver.netgear.com/products/DG834G v5.asp
.
How to Use This Manual
The HTML version of this manual includes the following:
• Buttons, at a time.
and , for browsing forward or backward through the manual one page
• A button that displays the table of contents and an button. Double-click on a link in the table of contents or index to navigate directly to where the topic is described in the manual.
• A model.
button to access the full NETGEAR, Inc. online knowledge base for the product
• Links to PDF versions of the full manual and individual chapters.
How to Print this Manual
To print this manual you can choose one of the following options, according to your needs.
• Printing a page in the HTML view.
Each page in the HTML version of the manual is dedicated to a major topic. Use the Print button on the browser toolbar to print the page contents.
• Printing a chapter.
Use the PDF of This Chapter link at the top left of any page.
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– Click the PDF of This Chapter link at the top left of any page in the chapter you want to print. The PDF version of the chapter you were viewing opens in a browser window.
– Your computer must have the free Adobe Acrobat reader installed in order to view and print PDF files. The Acrobat reader is available on the Adobe website at
http://www.adobe.com
.
– Click the print icon in the upper left of the window.
Tip: If your printer supports printing two pages on a single sheet of paper, you can save paper and printer ink by selecting this feature.
• Printing the full manual.
Use the Complete PDF Manual link at the top left of any page.
– Click the Complete PDF Manual link at the top left of any page in the manual. The PDF version of the complete manual opens in a browser window.
– Click the print icon in the upper left of the window.
Tip: If your printer supports printing two pages on a single sheet of paper, you can save paper and printer ink by selecting this feature.
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Chapter 1
Configuring Your Internet Connection
This chapter describes how to configure your ADSL2+ Modem Wireless Router Internet connection. When you perform the initial configuration of your modem router using the Resource
CD as described in the NETGEAR Router Setup Manual, these settings are configured automatically for you. This chapter provides further details about these settings, as well as instructions on how to log in to the modem router for further configuration.
Note: NETGEAR recommends using the Smart Wizard on the Resource CD for initial configuration, as described in the NETGEAR Wireless ADSL2+ Modem Router
Setup Manual.
This chapter includes:
•
“Logging In to the Modem Router”
•
“Using the Smart Wizard to Set Up Your Router”
•
“Logging In to the Modem Router”
•
“Using the Setup Wizard to Auto-Detect Your Internet Connection”
•
“Viewing or Manually Configuring Your ISP Settings”
•
•
“How the Internet Connection Works”
What You Need Before You Begin
You need to prepare the following before you can set up your Product Family:
• Active Internet service provided by an ADSL account.
• The Internet Service Provider (ISP) configuration information for your ADSL account.
– ISP login name and password
– ISP Domain Name Server (DNS) addresses
– Fixed or static IP address
– Host and domain names
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• Depending on how your ISP set up your Internet account, you need to know one or more of these settings:
– Virtual path identifier (VPI) and Virtual channel identifier (VCI) parameters
– Multiplexing method
– Host and domain names
• ASDL microfilters as explained in the NETGEAR Router Setup Manual.
• Your computer must be set up to use DHCP to get its TCP/IP configuration from the modem router. This is usually the case. For help with DHCP, see the documentation that came with your computer, or see the link to the online document in
“Preparing a Computer for Network
.
Your ISP should have provided you with all the information needed to connect to the Internet. If you cannot locate this information, you can ask your ISP to provide it.
Using the Smart Wizard to Set Up Your Router
For first-time installation of your modem router, refer to the NETGEAR Router Setup Manual. The
Setup Manual explains how to launch the NETGEAR Smart Wizard on the Resource CD to step you through the procedure to connect your router, modem, and computers. The Smart Wizard will assist you in configuring your wireless settings and enabling wireless security for your network.
After initial configuration using the Setup Manual, you can use the information in this Reference
Manual to configure additional features of your wireless router.
For installation instructions in a language other than English, see the language options on the
Resource CD.
Note: The Smart Wizard cannot detect a PPTP connection with your ISP. If your ISP uses this protocol, then you must configure your connection manually (see
Manually Configuring Your ISP Settings” on page 1-6 ).
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Wireless ADSL2+ Modem Router DG834G User Manual
Logging In to the Modem Router
You can log in to the modem router to view or change its settings.
Note: Your computer must be configured for DHCP. For help with configuring DHCP, see the documentation that came with your computer or see the link to the online
document in “Preparing a Computer for Network Access” in Appendix C
.
To log in to the modem router:
1. Type http://routerlogin.net or http://192.168.0.1 in the address field of an Internet browser.
Figure 1-1
This login window opens:
Figure 1-2
2. Enter admin
for the user name and password for the password, both in lower case letters.
3. Click OK. You will be logged in to your router’s main menu.
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Wireless ADSL2+ Modem Router DG834G User Manual
Using the Setup Wizard to Auto-Detect Your Internet
Connection
The Setup Wizard searches your Internet connection for servers and protocols to determine your
ISP configuration.
Note: The wizard cannot detect a PPTP connection with your ISP. If your ISP uses this protocol, then you must configure your connection manually (see
Manually Configuring Your ISP Settings” on page 1-6 ).
To use the Setup Wizard to assist with configuration or to view the Internet connection settings:
2. Select Setup Wizard to go to the Setup Wizard screen:
Figure 1-3
3. Select your Country and Language:
• Country. It is important to specify the location where the modem router will operate so that the Internet connection will work correctly.
• Language. You can select a language from the drop-down list.
4. Select your Auto-Connection Type: Auto-Detect Connection Type. If you want to change the settings for the Internet connection, select Yes or No, and then click Next.
• Yes. Let the modem router Setup Wizard auto-detect the type of Internet connection that you have and configure it.
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Wireless ADSL2+ Modem Router DG834G User Manual
• No, I want to Configure the Router Myself. Enter your Internet settings manually in the
Basic Settings screen. See “Viewing or Manually Configuring Your ISP Settings” on page 1-6
.
• If you selected Yes for the Auto-Detect Connection Type, then click Next to proceed.
The Setup Wizard detects your ISP configuration. Depending on the type of connection, you are prompted to enter your ISP settings, as shown in the following table.
Table 1-1. Auto-Detected Internet Connection Types
Connection Type
PPP over Ethernet (PPPoE)
PPP over ATM (PPPoA)
Dynamic IP Account Setup
IP over ATM Classical IP assignment (RFC1577)
Fixed IP (Static) Account
Setup
ISP Information
Enter the login user name and password. These fields are casesensitive.
No entries needed.
• Enter the assigned IP address, subnet mask, and the IP address of your ISP’s primary DNS server. If a secondary DNS server address is available, enter it also.
• DNS servers are required to perform the function of translating an Internet name such as
www.netgear.com
to a numeric IP address. For a fixed IP address configuration, you must obtain
DNS server addresses from your ISP and enter them manually here.
1. If required, enter the account name and domain name from your ISP.
2. Select Use Static IP Address or Use IP Over ATM (IPoA —
RFC1483 Routed) according to the information from your ISP.
If you select IPoA, the router will detect the gateway IP address, but you still need to provide the router IP address.
3. Enter your assigned IP address, subnet mask, and the IP address of your ISP’s gateway modem router. This information should have been provided to you by your ISP.
4. Enter the IP address of your ISP’s primary DNS server. If a secondary DNS server address is available, enter it also.
DNS servers are required to perform the function of translating an Internet name such as
www.netgear.com
to a numeric IP address. For a fixed IP address configuration, you must obtain
DNS server addresses from your ISP and enter them manually here.
In either case, use the configuration settings that your ISP provided to assure that the configuration for your Internet connection is correct.
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Wireless ADSL2+ Modem Router DG834G User Manual
5. To save your settings, click Apply.
6. Click Test to verify your Internet connection. If you have trouble connecting to the Internet or
if the NETGEAR website does not appear within 1 minute, see Chapter 7, “Troubleshooting” .
Test.
Viewing or Manually Configuring Your ISP Settings
NETGEAR recommends that you specify your country and language before you configure the settings on the Basic Settings screen. See
“Logging In to the Modem Router” on page 1-3
. You must install the ADSL filters and connect the modem router to the ADSL line as described in the
NETGEAR Router Setup Manual before you configure the settings in the Basic Settings screen.
To view or configure the basic settings:
1. Log in to the modem router as described in “Logging In to the Modem Router” .
2. Select Basic Settings to display the Basic Settings screen.
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Configuring Your Internet Connection
ISP does not require login
Wireless ADSL2+ Modem Router DG834G User Manual
ISP does require login
Figure 1-4
The fields on the Basic Settings screen depend on whether or not your Internet connection requires a login. The Basic Settings screen is explained in
Table 1-2. “Basic Settings Fields
.
3. Select Yes or No depending on whether your ISP requires a login. This selection changes the fields available on the Basic Settings screen.
• Yes. If your ISP requires a login, select the encapsulation method. Enter the login name. If you want to change the login time-out, enter a new value in minutes.
• No. If your ISP does not require a login, enter the account name, if required, and the domain name, if required.
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4. Enter the settings for the IP address and DNS server.
The default ADSL settings usually work fine. If you have problems with your connection,
check the ADSL settings. See “Changing Your ADSL Settings” for more details.
5. If no login is required, you can specify the MAC Address setting.
6. Click Apply to save your settings.
7. Click Test to test your Internet connection. If the NETGEAR website does not appear within
one minute, refer to Chapter 7, “Troubleshooting” .
Note: When your Internet connection is working you will no longer need to launch the
ISP’s login program on your computer to access the Internet. When you start an
Internet application, your modem router automatically logs you in.
Table 1-2. Basic Settings Fields Description
Settings Description
Does Your ISP Require a Login?
These fields appear only if no login is required.
Account Name
(If required)
Domain Name
(If required)
Encapsulation These fields appear only if your ISP requires a login.
Login
• Yes
• No
Enter the account name provided by your ISP. This might also be called the host name.
Enter the domain name provided by your ISP.
• PPPoE
• PPPoA
• PPTP
The login name provided by your ISP. This is often an e-mail address.
Idle Timeout (In minutes) If you want to change the login time-out, enter a new value in minutes. This determines how long the modem router keeps the Internet connection active after there is no Internet activity from the LAN. Entering an Idle Timeout value of 0 (zero) means never log out.
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Table 1-2. Basic Settings Fields Description
Settings
Internet IP Address
Domain Name Server (DNS) Address
NAT (Net Address Translation)
Description
• Get Dynamically from ISP. Your ISP uses DHCP to assign your IP address. Your ISP automatically assigns these addresses.
• Use Static IP Address. Enter the IP address that your ISP assigned. Also enter the IP subnet mask and the gateway IP address. The gateway is the ISP’s modem router to which your modem router will connect.
• Use IP Over ATM (IFoA). Your ISP uses Classical IP addresses (RFC 1577). Enter the IP address, IP subnet mask, and gateway IP addresses that your ISP assigned.
The DNS server is used to look up site addresses based on their names.
• Get Automatically from ISP. Your ISP uses DHCP to assign your DNS servers. Your ISP automatically assigns this address.
• Use These DNS Servers. If you know that your ISP does not automatically transmit DNS addresses to the modem router during login, select this option, and enter the IP address of your ISP’s primary DNS server. If a secondary
DNS server address is available, enter it also.
NAT automatically assigns private IP addresses (10.1.1.x) to
LAN-connected devices.
• Enable. Usually NAT is enabled.
• Disable. This disables NAT, but leaves the firewall active.
Disable NAT only if you are sure that you do not require it.
When NAT is disabled, only standard routing is performed by this router. Classical routing lets you directly manage the
IP addresses that the DG834G v5 uses. Classical routing should be selected only by experienced users.
a
• Disable Firewall. This disables the firewall in addition to disabling NAT. With the firewall disabled, the protections usually provided to your network are disabled.
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Table 1-2. Basic Settings Fields Description
Settings
This field appears only if no login is required.
Router MAC Address
Description
The Ethernet MAC address that will be used by the modem router on the Internet port. Some ISPs register the Ethernet
MAC address of the network interface card in your computer when your account is first opened. They will then accept traffic only from the MAC address of that computer. This feature allows your modem router to masquerade as that computer by
“cloning” its MAC address.
• Use Default Address. Use the default MAC address.
• Use Computer MAC Address. The modem router will capture and use the MAC address of the computer that you are now using. You must be using the one computer that is allowed by the ISP.
• Use This MAC Address. Enter the MAC address that you want to use.
a. Disable NAT only if you plan to install the modem router in a setting where you will be manually administering the IP address space on the LAN side of the router.
Changing Your ADSL Settings
Note: For information about how to install ADSL filters, see the NETGEAR Router Setup
Manual.
The default ADSL settings of your modem router work fine for most ISPs. However, some ISPs use a specific multiplexing method and virtual circuit number for the virtual path identifier (VPI) and virtual channel identifier (VCI).
Note: You must use the Setup Wizard to select the correct country for the default ADSL settings to work.
If your ISP provided you with a multiplexing method or VPI/VCI number, then enter the setting:
1. From the main menu, select ADSL Settings.
2. In the Multiplexing Method drop-down list, select LLC-based or VC-based.
3. Type a number between 0 and 255 for the VPI. The default is 8.
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4. Type a number between 32 and 65535 for the VCI. The default is 35.
5. Click Apply.
How the Internet Connection Works
Your modem router is now configured to provide Internet access for your network. Your modem router automatically connects to the Internet when one of your computers requires access. It is not necessary to run a dialer or login application such as dial-up networking or Enternet to connect, log in, or disconnect. The modem router performs these functions automatically as needed.
To access the Internet from any computer connected to your modem router, launch an Internet browser such as Microsoft Internet Explorer or Mozilla Firefox. You should see the modem router’s Internet LED blink, indicating communication to the ISP. The browser should begin to display a Web page.
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Configuring Your Internet Connection
Chapter 2
Configuring Your Wireless Network and Security
Settings
For a wireless connection, the
SSID, also called the wireless network name, and the wireless security setting must be the same for
the modem router and wireless computers or wireless adapters. NETGEAR strongly recommends that you use wireless security.
Warning: Computers can connect wirelessly at a range of several hundred feet. This can allow others outside of your immediate area to access your network.
This chapter includes:
•
“Planning Your Wireless Network”
•
“Specifying Wireless Security” on page 2-4
•
“Manually Configuring Your Wireless Settings” on page 2-7
•
“Using Push 'N' Connect (WPS) to Configure Your Wireless Network” on page 2-10
•
“Advanced Wireless Settings for WPS and WDS” on page 2-16
•
“Controlling Wireless Station Access” on page 2-16
•
“Restricting Access by MAC Address” on page 2-17
Planning Your Wireless Network
For compliance and compatibility between similar products in your area, the operating channel and region must be set correctly.
To configure the wireless network, you can either specify the wireless settings, or you can use Wi-
Fi Protected Setup (WPS) to automatically set the SSID and implement WPA/WPA2 security.
• To manually configure the wireless settings, you must know the following:
– SSID. The default SSID for the modem router is NETGEAR.
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– The wireless mode (802.11g, or 802.11b) that each wireless adapter supports.
– Wireless security option. To successfully implement wireless security, check each wireless adapter to determine which wireless security option it supports.
See
“Manually Configuring Your Wireless Settings” on page 2-7
.
• Push 'N' Connect (WPS) automatically implements wireless security on the modem router while, at the same time, allowing you to automatically implement wireless security on any
WPS-enabled devices (such as wireless computers and wireless adapter cards). You activate
WPS by pressing a WPS button on the modem router, clicking an onscreen WPS button, or entering a PIN number. This generates a new SSID and implements WPA/WPA2 security.
To set up your wireless network using the WPS feature:
– Use the WPS button on the side of the modem router (there is also an onscreen WPS button ), or enter the PIN of the wireless device.
– Make sure that all wireless computers and wireless adapters on the network are
Wi-Fi certified and WPA or WPA 2 capable, and that they support WPS configuration.
See
“Using Push 'N' Connect (WPS) to Configure Your Wireless Network” on page 2-10
.
Wireless Placement and Range Guidelines
The range of your wireless connection can vary significantly based on the physical placement of the modem router. The latency, data throughput performance, and notebook power consumption of wireless adapters also vary depending on your configuration choices.
For best results, place your modem router according to the following guidelines:
• Near the center of the area in which your PCs will operate.
• In an elevated location such as a high shelf where the wirelessly connected PCs have line-ofsight access (even if through walls).
• Away from sources of interference, such as PCs, microwave ovens, and 2.4 GHz cordless phones.
• Away from large metal surfaces.
• Put the antenna in a vertical position to provide the best side-to-side coverage. Put the antenna in a horizontal position to provide the best up-and-down coverage.
• If using multiple access points, it is better if adjacent access points use different radio frequency channels to reduce interference. The recommended channel spacing between adjacent access points is 5 channels (for example, use Channels 1 and 6, or 6 and 11).
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The time it takes to establish a wireless connection can vary depending on both your security settings and placement. WEP connections can take slightly longer to establish. Also, WEP encryption can consume more battery power on a notebook computer.
Wireless Security Options
Indoors, computers can connect over 802.11g wireless networks at a maximum range of up to 300 feet. Such distances can allow for others outside your immediate area to access your network.
Unlike wired network data, your wireless data transmissions can extend beyond your walls and can be received by anyone with a compatible adapter. For this reason, use the security features of your wireless equipment. The ADSL2+ Modem Wireless Router provides highly effective security features which are covered in detail in this chapter. Deploy the security features appropriate to your needs.
There are several ways you can enhance the security of your wireless network:
Figure 2-1
• Restrict Access Based on MAC Address. You can allow only trusted PCs to connect so that unknown PCs cannot wirelessly connect to the modem router. Restricting access by MAC address adds an obstacle against unwanted access to your network, but the data broadcast over
the wireless link is fully exposed (see “Restricting Access by MAC Address” on page 2-17
).
• Turn Off the Broadcast of the Wireless Network Name SSID. If you disable broadcast of the SSID, only devices that have the correct SSID can connect. This nullifies wireless network
‘discovery’ feature of some products, such as Windows XP, but the data is still exposed (see
“Controlling Wireless Station Access” on page 2-16
).
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• WEP. Wired Equivalent Privacy (WEP) data encryption provides data security. WEP Shared
Key authentication and WEP data encryption block all but the most determined eavesdropper.
This data encryption mode has been superseded by WPA-PSK and WPA2-PSK (see
)..
• WPA-802.1x, WPA2-802.1x. Wi-Fi Protected Access (WPA) with user authentication implemented using IEE 802.1x and RADIUS servers.
• WPA-PSK (TKIP), WPA2-PSK (AES). Wi-Fi Protected Access (WPA) using a pre-shared key to perform authentication and generate the initial data encryption keys. The very strong authentication along with dynamic per frame re-keying of WPA makes it virtually impossible
to compromise “Configuring WPA, WPA2, or WPA/WPA2” on page 2-6
).
For more information about wireless technology, see the link to the online document in
.
Specifying Wireless Security
To set up wireless security, you can either manually configure it in the Wireless Settings screen, or you can use Wi-Fi Protected Setup (WPS) to automatically set the SSID and implement WPA/
WPA2 security (see “Using Push 'N' Connect (WPS) to Configure Your Wireless Network” on page 2-10
.
Configuring WEP
Note: If you use a wireless computer to configure wireless security settings, you will be disconnected when you click Apply. Reconfigure your wireless computer to match the new settings, or access the modem router from a wired computer to make further changes.
To configure WEP data encryption:
1. Log in to the modem router at its default LAN address of http://192.168.0.1 with its default user name of admin, and default password of password, or using whatever user name, password, and LAN address you have chosen for the modem router.
2. From the main menu, select Wireless Settings to display the Wireless Settings screen.
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3. In the Security Options section, select the WEP (Wired Equivalent Privacy) radio button:
Figure 2-2
4. Select the Authentication Type: Automatic, Open System, or Shared Key. The default is
Open System.
Note: The authentication scheme is separate from the data encryption. You can select an authentication scheme that requires a shared key but still leaves the data transmissions unencrypted. If you require strong security, use both the Shared
Key and WEP encryption settings.
5. Select the Encryption Strength setting:
• WEP (Wired Equivalent Privacy) 64-bit encryption. Enter 10 hexadecimal digits (any combination of 0–9, a–f, or A–F).
• WEP (Wired Equivalent Privacy) 128-bit encryption. Enter 26 hexadecimal digits (any combination of 0–9, a–f, or A–F).
6. Enter the encryption keys. You can manually or automatically program the four data encryption keys. These values must be identical on all computers and Access Points in your network:
• Passphrase. To use a passphrase to generate the keys, enter a passphrase, and click
Generate. This automatically creates the keys. Wireless stations must use the passphrase or keys to access the modem router.
Note: Not all wireless adapters support passphrase key generation.
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• Key 1-Key4. These values are not case-sensitive. You can manually enter the four data encryption keys. These values must be identical on all computers and access points in your network. Enter 10 hexadecimal digits (any combination of 0
–
9, a
– f, or A
–
F).
7. Select which of the four keys will be the default.
Data transmissions are always encrypted using the default key. The other keys can be used only to decrypt received data. The four entries are disabled if WPA-PSK or WPA authentication is selected.
8. Click Apply to save your settings.
Configuring WPA, WPA2, or WPA/WPA2
Both WPA and WPA2 provide strong data security. WPA with TKIP is a software implementation that can be used on Windows systems with Service Pack 2 or later; WPA2 with AES is a hardware implementation; see your device documentation before implementing it. Consult the product documentation for your wireless adapter for instructions for configuring WPA settings.
Note: If you use a wireless computer to configure wireless security settings, you will be disconnected when you click Apply. If this happens, reconfigure your wireless computer to match the new settings, or access the modem router from a wired computer to make further changes.
To configure WPA or WPA2 in the modem router:
1. Log in to the modem router at its default LAN address of http://192.168.0.1 with its default user name of admin and default password of password, or using whatever user name, password, and LAN address you have chosen for the modem router.
2. Select Wireless Settings from the main menu.
3. On the Wireless Setting screen, select the radio button for the WPA or WPA2 option of your choice.
4. The settings displayed on the screen depend on which security option you select.
5. For WPA-PSK or WPA2-PSK, enter the passphrase.
6. If prompted, enter the settings for the Radius server. For WPA-802.1x or WPA2-802.1x, these settings are required for communication with the primary Radius server.
• Primary Radius Server IP Address. The IP address of the Radius server. The default is
0.0.0.0
• Radius Port. Port number of the Radius server. The default is 1812.
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• Shared Key. This is shared between the wireless access point and the Radius server during authentication.
7. To save your settings, click Apply.
Manually Configuring Your Wireless Settings
You can view or manually configure the wireless settings for the modem router in the Wireless
Settings screen. If you want to make changes, make sure to note the current settings first.
Note: If you use a wireless computer to change the wireless network name (SSID) or wireless security settings, you will be disconnected when you click Apply. To avoid this problem, use a computer with a wired connection to access the modem router.
To view or manually configure the wireless settings:
1. Log in to the modem router at its default LAN address of http://192.168.0.1 with its default user name of admin, and default password of password, or using whatever user name, password, and LAN address you have chosen for the modem router.
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2. Select Wireless Settings from the main menu to display the Wireless Settings screen:
Figure 2-3
The settings for this screen are explained in Table 2-1 .
3. Select the region in which the modem router will operate.
4. For initial configuration and test, leave the other settings unchanged.
5. To save your changes, click Apply.
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6. Configure and test your computers for wireless connectivity.
Program the wireless adapter of your computers to have the same SSID and wireless security settings as your modem router. Check that they have a wireless link and are able to obtain an
IP address by DHCP from the modem router. If there is interference, adjust the channel.
Table 2-1. Wireless Settings
Settings
Wireless
Network
Name (SSID)
Region
Channel
Mode
Wireless Access
Point
Enable Wireless Access
Point
Allow Broadcast Name
(SSID)
Description
The SSID is also known as the wireless network name.
Enter a 32-character (maximum) name in this field. This field is case-sensitive.
In a setting where there is more than one wireless network, different wireless network names provide a means for separating the traffic. Any device you want to participate in a wireless network must use the SSID.
The location where the Product Family is used.
The wireless channel used by the gateway. The default is Channel 6.
Do not change the wireless channel unless you experience interference (shown by lost connections or slow data transfers). If this happens, you might need to experiment with different channels to see which is the best.
The default is g & b, which allows both 802.11g and
802.11b wireless stations access. Note that in b only mode, 802.11g wireless stations can connect if they can operate in 802.11b mode.
Selected by default, this setting enables the wireless radio, which allows the modem router to work as a wireless access point.
Turning off the wireless radio can be helpful for configuration, network tuning, or troubleshooting.
Selected by default, the modem router broadcasts its
SSID, allowing wireless stations that have a null (blank)
SSID to adopt the correct SSID. If you disable broadcast of the SSID, only devices with the correct
SSID can connect. This nullifies the wireless network discovery feature of products such as Windows XP, but the data is still exposed to equipment like wireless sniffers. For this reason NETGEAR recommends that you also enable wireless security.
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Table 2-1. Wireless Settings (continued)
Settings
Wireless Station
Access List
Turn Access Control On
Security Options
Wireless Isolation
Description
This feature is disabled by default. If it is enabled, wireless stations cannot communicate with each other or with stations on the wired network.
Access control is disabled by default so that any computer configured with the correct SSID can
connect. See “Restricting Access by MAC Address”
.
• Disabled. You can use this setting to establish wireless connectivity before implementing wireless security. NETGEAR strongly recommends that you implement wireless security.
• WEP (Wired Equivalent Privacy). Use encryption keys and data encryption for data security. You can select
64-bit or 128-bit encryption. See “Configuring WEP” .
• WPA-PSK (WiFi Protected Access Pre-Shared
Key).
Allow only computers configured with WPA to
connect to the modem router. See “Configuring WPA,
.
• WPA2-PSK (Wi-Fi Protected Access with 2 Pre-
Shared Keys)
. Allow only computers configured with
WPA2 to connect to the modem router. See
“Configuring WPA, WPA2, or WPA/WPA2”
• WPA-PSK + WPA2-PSK. Allow computers configured with either WPA-PSK or WPA2-PSK security to connect to the modem router. See
“Configuring WPA, WPA2, or WPA/WPA2” .
• The WPA-802.1x, WPA2-802.1, and WPA-802.1x
+WPA2-802.1
options utilize user authentication implemented using IEE 802.1x and Radius servers.
See
“Configuring WPA, WPA2, or WPA/WPA2” .
Using Push 'N' Connect (WPS) to Configure Your Wireless
Network
If your wireless clients support Wi-Fi Protected Setup (WPS), you can use this feature to configure the modem router’s SSID and security settings and, at the same time, connect the wireless client securely and easily to the modem router. Look for the symbol on your client device
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(computers that will connect wirelessly to the modem router are clients). WPS automatically configures the network name (SSID) and wireless security settings for the modem router (if the modem router is in its default state) and broadcasts these settings to the wireless client.
Some considerations regarding WPS are:
• WPS supports only WPA-PSK and WPA2-PSK wireless security. WEP security is not supported by WPS.
• NETGEAR’s Push 'N' Connect feature is based on the WPS standard. All other Wi-Fi-certified and WPS-capable products should be compatible with NETGEAR products that implement
Push 'N' Connect.
• If your wireless network will include a combination of WPS capable devices and non-WPS capable devices, NETGEAR suggests that you set up your wireless network and security settings manually first, and use WPS only for adding additional WPS capable devices. See
“Connecting Additional Wireless Client Devices After WPS Setup” on page 2-14 .
A WPS client can be added using the Push Button method or the PIN method.
•
Using the Push Button. This is the preferred method. See the following section, “Using a
WPS Button to Add a WPS Client”
.
• Entering a PIN. For information about using the PIN method, see
Using a WPS Button to Add a WPS Client
Any wireless computer or wireless adapter that will connect to the modem router wirelessly is a client. The client must support a WPS button, and must have a WPS configuration utility, such as the NETGEAR Smart Wizard or Atheros Jumpstart.
To use the modem router WPS button to add a WPS client:
1. Log in to the modem router at its default LAN address of http://192.168.0.1 with its default user name of admin and default password of password, or using whatever LAN address and password you have set up.
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2. On the modem router main menu, select Add a WPS Client, and then click Next. The following screen displays:
WPS button
Figure 2-4
By default, the Push Button (recommended) radio button is selected.
3. Either press the WPS button on the side of the modem router, or click the onscreen button.
The modem router tries to communicate with the client for 2 minutes.
4. Go to the client wireless computer, and run a WPS configuration utility. Follow the utility’s instructions to click a WPS button.
5. Go back to the modem router screen to check for a message.
The modem router WPS screen displays a message confirming that the client was added to the wireless network. The modem router generates an SSID, and implements WPA/WPA2 wireless security. The modem router will keep these wireless settings unless you change them, or you clear the Keep Existing Wireless Settings check box in the WPS Settings screen.
Figure 2-5
6. Note the new SSID and WPA/WPA2 password for the wireless network. You can view these
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To access the Internet from any computer connected to your modem router, launch a browser such as Microsoft Internet Explorer or Mozilla Firefox. You should see the modem router’s Internet
LED blink, indicating communication to the ISP.
Note: If no WPS-capable client devices are located during the 2-minute timeframe, the
SSID will not be changed, and no security will be implemented on the modem router.
Using PIN Entry to Add a WPS Client
Any wireless computer or wireless adapter that will connect to the modem router wirelessly is a client. The client must support a WPS PIN, and must have a WPS configuration utility, such as the
NETGEAR Smart Wizard or Atheros Jumpstart.
The first time you add a WPS client, make sure that the Keep Existing Wireless Settings check box on the WPS Settings screen is cleared. This is the default setting for the modem router, and allows it to generate the SSID and WPA/WPA2 security settings when it implements WPS. After
WPS is implemented, the modem router automatically selects this check box so that your SSID and wireless security settings remain the same if other WPS-enabled devices are added later.
To use a PIN to add a WPS client:
1. Log in to the modem router at its default LAN address of http://192.168.0.1 with its default user name of admin and default password of password, or using whatever LAN address and password you have set up.
2. On the modem router main menu, select Add a WPS Client (computers that will connect wirelessly to the modem router are clients), and then click Next. The Add WPS Client screen displays:
Figure 2-6
3. Select the PIN Number radio button.
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4. Go to the client wireless computer. Run a WPS configuration utility. Follow the utility’s instructions to generate a PIN. Take note of the client PIN.
5. From the modem router Add WPS Client screen, enter the client PIN number, and then click
Next.
• The modem router tries to communicate with the client for 4 minutes.
• The modem router WPS screen displays a message confirming that the client was added to the wireless network. The modem router generates an SSID, and implements WPA/WPA2 wireless security.
6. Note the new SSID and WPA/WPA2 password for the wireless network. You can view these
To access the Internet from any computer connected to your modem router, launch a browser such as Microsoft Internet Explorer or Mozilla Firefox. You should see the modem router’s Internet
LED blink, indicating communication to the ISP.
Note: If no WPS-capable client devices are located during the 2-minute timeframe, the
SSID will not be changed and no security will be implemented on the modem router.
Connecting Additional Wireless Client Devices After WPS Setup
You can add more WPS clients to your wireless network, or you can add a combination of WPSenabled clients and clients without WPS.
Note: Your wireless settings remain the same when you add another WPS-enabled client, as long as the Keep Existing Wireless Settings checkbox is selected in the
Advanced Wireless screen (listed under the Advanced heading in the modem router main menu). If you clear this checkbox, when you add the client, a new SSID and passphrase will be generated, and all existing connected wireless clients will be disassociated and disconnected from the modem router.
To add a wireless client device that is WPS-enabled:
1. Follow the procedures in “Using a WPS Button to Add a WPS Client” on page 2-11
or
PIN Entry to Add a WPS Client” on page 2-13
.
2. To view a list of all devices connected to your modem router (including wireless and Ethernetconnected), see
“Viewing Attached Devices” on page 4-8 .
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For non-WPS clients, you cannot use the WPS setup procedures to add them to the wireless
network. You must record, and then manually enter your security settings (see “Manually
Configuring Your Wireless Settings” on page 2-7 ).
To connect a combination of non-WPS enabled and WPS-Enabled clients to the modem router:
1. Restore the modem router to its factory default settings (press both the Wireless and WPS buttons on the side of the modem router for 5 seconds).
When the factory settings are restored, all existing wireless clients are disassociated and disconnected from the modem router.
2. Configure the network names (SSIDs), select the WPA/PSK + WPA2/PSK radio button on the
Wireless Settings screen (see “Manually Configuring Your Wireless Settings” on page 2-7
). and click Apply. On the WPA/PSK + WPA2/PSK screen, select a passphrase and click Apply.
Record this information to add additional clients.
3. For the non-WPS devices that you want to connect, open the networking utility and follow the utility’s instructions to enter the security settings that you selected in Step 2 (the SSID, WPA/
PSK + WPA2/PSK security method, and passphrase).
4. For the WPS devices that you want to connect, follow the procedure
Add a WPS Client” on page 2-11
or “Using PIN Entry to Add a WPS Client” on page 2-13 .
The settings that you configured in Step 2 are broadcast to the WPS devices so that they can connect to the modem router.
Note: To make sure that your new wireless settings remain in effect, verify that the
Keep Existing Wireless Settings checkbox is selected in the WPS Settings screen.
5. To view a list of all devices connected to your modem router (including wireless and Ethernetconnected), see
“Viewing Attached Devices” on page 4-8 .
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Advanced Wireless Settings for WPS and WDS
The Advanced Wireless Settings screen includes settings for Push 'N' Connect (WPS) and for wireless distribution system (WDS) setup. From the main menu, select Advanced Wireless
Settings to display the following screen:
Figure 2-7
• WPS (Push 'N' Connect). The WPS settings show the modem router PIN, and the Keep
Existing Wireless Settings check box.
By default, the Keep Existing Wireless Settings check box is cleared. This allows the modem router to automatically generate the SSID and WPA/WPA2 security settings when it implements WPS. After WPS is implemented, the modem router automatically selects this check box so that your SSID and wireless security settings remain the same if other WPSenabled devices are added later.
• WDS. Select this radio button to configure a wireless distribution system (WDS). You can
build large bridged wireless networks. See “Configuring Wireless Bridging and Repeating
.
Controlling Wireless Station Access
By default, any wireless PC that is configured with the correct SSID and wireless security settings is allowed access to your wireless network. You can use Wireless Access Point settings in the
Wireless Setting screen to further restrict wireless access to your network:
Figure 2-8
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• Turning off wireless connectivity completely.
You can completely turn off the wireless portion of the modem router. For example, if you use your notebook computer to wirelessly connect to your modem router, and you take a business trip, you can turn off the wireless portion of the modem router while you are traveling. Other members of your household who use computers connected to the modem router via Ethernet cables can still use the modem router. To do this, clear the Enable Wireless Access Point check box on the Wireless Settings screen, and then click Apply.
• Hiding your wireless network name (SSID).
By default, the modem router is set to broadcast its wireless network name (SSID). You can restrict wireless access to your network by not broadcasting the wireless network name
(SSID). To do this, clear the Allow Broadcast of Name (SSID) check box on the Wireless
Settings screen, and then click Apply. Wireless devices will not “see” your modem router.
You must configure your wireless devices to match the wireless network name (SSID) of the modem router.
Note: The SSID of any wireless access adapters must match the SSID you configure in the modem router. If they do not match, you will not get a wireless connection to the modem router.
Restricting Access by MAC Address
For increased security, you can restrict access to the wireless network to allow only specific PCs based on their MAC addresses. You can restrict access to only trusted PCs so that unknown PCs cannot wirelessly connect to the ADSL2+ Modem Wireless Router. MAC address filtering adds an obstacle against unwanted access to your network, but the data broadcast over the wireless link is fully exposed.
To restrict access based on MAC addresses:
1. Log in to the modem router at its default LAN address of http://192.168.0.1 with its default user name of admin, and default password of password, or using whatever user name, password, and LAN address you have chosen for the modem router.
Note: If you configure the Product Family from a wireless computer, add your computer’s MAC address to the access list. Otherwise you will lose your wireless connection when you click Apply. You must then access the modem router from a wired computer, or from a wireless computer that is on the access control list, to make any further changes.
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2. From the main menu, select Wireless Settings, and then click Setup Access List to display the
Wireless Station Access List screen.
Figure 2-9
The trusted wireless stations listed on this screen are the wireless clients that will have access to the wireless network when the list is enabled.
3. Adjust the list as needed for your network. You can add devices to the Trusted Wireless
Stations list using either of the following methods:
• If the computer is in the Available Wireless Stations table, select the radio button of that computer to capture its MAC address.
• Use the Add New Station Manually fields to enter the MAC address of the device to be added. The MAC address can usually be found on the bottom of the wireless device.
Note: If no device name appears when you enter the MAC address, you can type a descriptive name for the computer that you are adding.
Click Add, and then click Apply to save these settings. Now, only devices on this list will be allowed to wirelessly connect to the Product Family.
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Chapter 3
Protecting Your Network
This chapter describes how to use the basic firewall features of the ADSL2+ Modem Wireless
Router to protect your network.
Protecting Access to Your ADSL2+ Modem Wireless Router
For security reasons, the modem router has its own user name and password. Also, after a period of inactivity for a set length of time, the administrator login automatically disconnects. When prompted, enter admin
for the modem router user name and password for the modem router password. You can use procedures in the following sections to change the modem router password and the amount of time for the administrator’s login time-out.
Note: The user name and password are not the same as a user name or password you might use to log in to your Internet connection.
NETGEAR recommends that you change this password to a more secure password. The ideal password should contain no dictionary words from any language, and should be a mixture of both upper and lower case letters, numbers, and symbols. Your password can be up to 30 characters.
Changing the Built-In Password
1. Log in to the modem router at its default LAN address of http://192.168.0.1 with its default user name of admin, default password of password, or using whatever password and LAN address you have chosen for the modem router.
Figure 3-1
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2. From the main menu, under the Maintenance heading, select Set Password to display the Set
Password screen:
Figure 3-2
3. To change the password, first enter the old password, and then enter the new password twice.
4. Click Apply to save your changes.
Note: After changing the password, you must log in again to continue the configuration. If you have backed up the modem router settings previously, you should do a new backup so that the saved settings file includes the new password.
Changing the Administrator Login Time-out
For security, the administrator login to the modem router configuration times out after a period of inactivity. To change the login time-out period:
1. In the Set Password screen, type a number in the Administrator login times out field. The suggested default value is 5 minutes.
2. Click Apply to save your changes, or click Cancel to keep the current period.
Configuring Basic Firewall Services
Basic firewall services you can configure include access blocking and scheduling of firewall security. These topics are presented in the following sections.
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Blocking Keywords, Sites, and Services
The modem router provides a variety of options for blocking Internet-based content and communications services. With its content filtering feature, the modem router prevents objectionable content from reaching your PCs. You can control access to Internet content by screening for keywords within Web addresses. Content filtering options include:
• Keyword blocking of HTTP traffic.
• Outbound service blocking. Limits access from your LAN to Internet locations or services that you specify as off-limits.
• Denial of service (DoS) protection. Detects and thwarts denial of service (DoS) attacks such as
Ping of Death, SYN flood, LAND attack, and IP spoofing.
• Blocking unwanted traffic from the Internet to your LAN.
The following section explains how to configure your
modem router to perform these functions.
Blocking Keywords and Sites
The
modem router
allows you to restrict access to Internet content based on Web addresses and
Web address keywords.
1. Log in to the modem router at its default LAN address of http://192.168.0.1 with its default user name of admin, and default password of password, or using whatever password and
LAN address you have chosen for the modem router.
2. On the main menu, select Block Sites to display the Block Sites screen:
Figure 3-3
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3. To enable keyword blocking, select one of the following:
• Per Schedule. Turn on keyword blocking according to the settings on the Schedule screen.
• Always. Turn on keyword blocking all the time, independent of the setting in the Schedule screen.
4. Enter a keyword or domain in the Keyword field, click Add Keyword, and then click Apply.
Some examples of keyword applications are shown in the following chart.
Keyword
XXX
.com
Result
Block the URL http://www.badstuf.com/xxx.html.
Only websites with other domain suffixes (such as .edu or .gov) can be viewed.
Block all Internet browsing access.
. ( a period)
Up to 32 entries are supported in the Keyword list.
Note: If you block sites, you can set up the modem router to log attempts to access
them. See “Viewing, Selecting, and Saving Logged Information” on page 4-9
.
5. To delete a keyword or domain, select it from the list, click Delete Keyword, and then click
Apply.
6. To specify a trusted user, enter that computer’s IP address in the Trusted IP Address field, and then click Apply.
You can specify one trusted user, which is a computer that will be exempt from blocking and logging. Since the trusted user will be identified by an IP address, you should configure that computer with a fixed IP address.
7. Click Apply to save your settings.
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Firewall Rules
Firewall rules block or allow specific traffic passing through from one side of the modem router to the other. Inbound rules (WAN to LAN) restrict access by outsiders to private resources, selectively allowing only specific outside users to access specific resources. Outbound rules (LAN to WAN) determine what outside resources local users can have access to.
The default inbound and outbound rules of the
modem router
are:
• Inbound. Block all access from outside except responses to requests from the LAN side.
• Outbound. Allow all access from the LAN side to the outside.
You can define additional rules that will specify exceptions to the default rules. By adding custom rules, you can block or allow access based on the service or application, source or destination IP addresses, and time of day. You can also choose to log traffic that matches or does not match the rule you have defined.
You can change the order of precedence of rules so that the rule that applies most often will take
effect first. See “Order of Precedence for Rules”
for more details.
To view or change firewall rules, select Firewall Rules on the main menu.
Figure 3-4
• To edit an existing rule, select its button on the left side of the table and click Edit.
• To delete an existing rule, select its button on the left side of the table and click Delete.
• To move a rule to a different position in the table, select its button, and then click Move. At the prompt, enter the number of the desired new position, and then click OK.
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Inbound Rules (Port Forwarding)
Because the
modem router
uses Network Address Translation (NAT), your network presents only one IP address to the Internet, and outside users cannot directly access any of your local computers. However, by defining an inbound rule you can make a local server (for example, a Web server or game server) visible and available to the Internet. The rule tells the modem router to direct inbound traffic for a particular service to one local server based on the destination port number. This is also known as port forwarding.
Note: Some broadband ISP accounts do not allow you to run any server processes (such as a Web or FTP server) from your location. Your ISP might periodically check for servers and might suspend your account if it discovers any active services at your location. If you are unsure, see the acceptable use policy of your ISP.
Remember that allowing inbound services opens holes in your firewall. Enable only those ports that are necessary for your network. Following are two application examples of inbound rules.
Inbound Rule Example: A Local Public Web Server
If you host a public Web server on your local network, you can define a rule to allow inbound Web
(HTTP) requests from outside IP addresses to the IP address of your Web server at any time of day.
This rule is shown in the following figure:
Figure 3-5
The settings are:
• Service. From this list, select the application or service to be allowed or blocked. The list already displays many common services, but you are not limited to these choices. Use the
Services screen to add any additional services or applications that do not already appear.
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• Action. Select when you want this type of traffic to be handled. You can block or allow always, or you can choose to block or allow according to the schedule you have defined in the
Schedule screen.
• Send to LAN Server. Enter the IP address of the computer or server on your LAN which will receive the inbound traffic covered by this rule.
• WAN Users. These settings determine which packets are covered by the rule, based on their source (WAN) IP address. Select the option that you want:
– Any. All IP addresses are covered by this rule.
– Address range. If this option is selected, you must enter the Start and Finish fields.
– Single address. Enter the required address in the Start field.
• Log. You can select whether the traffic will be logged. The choices are:
– Never. No log entries will be made for this service.
– Always. Any traffic for this service type will be logged.
– Match. Traffic of this type that matches the rule will be logged.
– Not match. Traffic of this type that does not match the rule will be logged.
Inbound Rule Example: Allowing Videoconferencing
You can create an inbound rule to allow incoming videoconferencing to be initiated from a restricted range of outside IP addresses, such as from a branch office. In this example, CU-SeeMe connections are allowed only from a specified range of external IP addresses. This example also specifies logging of any incoming CU-SeeMe requests that do not match the allowed parameters.
Figure 3-6
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Considerations for Inbound Rules
If your external IP address is assigned dynamically by your ISP, the IP address might change periodically as the DHCP lease expires. Consider using the Dynamic DNS feature so that external users can always find your network.
If the IP address of the local server computer is assigned by DHCP, it might change when the computer is rebooted. To avoid this, use the Reserved IP address feature in the LAN IP menu to keep the computer’s IP address constant.
Local computers must access the local server using the computer’s local LAN address
(192.168.0.11 in the previous example). Attempts by local computers to access the server using the external WAN IP address will fail.
Outbound Rules (Service Blocking)
The modem router allows you to block the use of certain Internet services by computers on your network. This is called service blocking or port filtering. You can define an outbound rule to block
Internet access from a local computer based on the following:
• IP address of the local computer (source address)
• IP address of the Internet site being contacted (destination address)
• Time of day
• Type of service being requested (service port number)
Outbound Rule Example: Blocking Instant Messenger
If you want to block Instant Messenger usage by employees during working hours, you can create an outbound rule to block that application from any internal IP address to any external address according to the schedule that you have created in the Schedule screen. You can also have the modem router log any attempt to use Instant Messenger during that blocked period.
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The following screen shows AIM selected in the Service list:
Figure 3-7
The Outbound Services screen includes the following fields:
• Service. Select the application or service from the drop-down list to be allowed or blocked.
You can use the Add Custom Service feature to add any additional services or applications that are not in the list; see
for details.
• Action. Choose when you want this type of traffic to be handled. You can block or allow always, or you can block or allow according to the schedule defined in the Schedule screen.
• LAN users. This setting determine which packets are covered by the rule, based on their source LAN IP address. Select the desired option:
– Any. All IP addresses are covered by this rule.
– Address range. If this option is selected, you must fill in the Start and Finish fields.
– Single address. Enter the required address in the Start field.
• WAN users. This setting determines which packets are covered by the rule, based on their destination WAN IP address. Select the option that you want:
– Any. All IP addresses are covered by this rule.
– Address range. If this option is selected, you must fill in the Start and Finish fields.
– Single address. Enter the required address in the Start field.
• Log. Select whether the traffic will be logged. The choices are:
– Never. No log entries will be made for this service.
– Always. Any traffic for this service type will be logged.
– Match. Traffic of this type that matches the rule will be logged.
– Not match. Traffic of this type that does not match the rule will be logged.
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Order of Precedence for Rules
As you define new rules, they are added to the tables in the Firewall Rules screen, as shown:
Figure 3-8
For any traffic attempting to pass through the firewall, the packet information is subjected to the rules in the order shown in the rules table, beginning at the top and proceeding to the default rules at the bottom. In some cases, the order of precedence of two or more rules might be important in determining the disposition of a packet. The Move button allows you to relocate a defined rule to a new position in the table.
Services
Services are functions performed by server computers at the request of client computers. For example, Web servers serve Web pages, time servers serve time and date information, and game hosts serve data about other players’ moves. When a computer on the Internet sends a request for service to a server computer, the requested service is identified by a service or port number. This number appears as the destination port number in the transmitted IP packets. For example, a packet that is sent with destination port number 80 is an HTTP (Web server) request.
The service numbers for many common protocols are defined by the Internet Engineering Task
Force (IETF) and published in RFC 1700, “Assigned Numbers.” Service numbers for other applications are typically chosen from the range 1024 to 65535 by the authors of the application.
Although the modem router already holds a list of many service port numbers, you are not limited to these choices. Use the following procedure to define your own services.
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To define a service:
1. Log in to the modem router at its default LAN address of http://192.168.0.1 with its default user name of admin default password of password, or using whatever password and LAN address you have chosen for the modem router.
2. Under the Content Filtering heading, select Services to display the Services screen:
Figure 3-9
• To create a new service, click Add Custom Service.
• To edit an existing service, select its button on the left side of the table, and then click Edit
Service.
• To delete an existing service, select its button on the left side of the table, and then click
Delete Service.
3. Use the screen shown in the following figure to define or edit a service.
Figure 3-10
4. Click Apply to save your changes.
Setting Times and Scheduling Firewall Services
The modem router uses network time protocol (NTP) to obtain the current time and date from one of several network time servers on the Internet.
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To localize the time for your log entries, you must specify your time zone:
1. Log in to the modem router at its default LAN address of http://192.168.0.1 with its default user name of admin, default password of password, or using whatever password and LAN address you have chosen for the modem router.
2. On the main menu, select Schedule to display the Schedule screen:
Figure 3-11
3. Select your time zone. This setting will be used for the blocking schedule according to your local time zone and for time-stamping log entries.
If your time zone is currently in daylight savings time, select the Adjust for daylight savings
time check box.
Note: If your region uses daylight savings time, you must manually select Adjust for
Daylight Savings Time on the first day of daylight savings time, and clear it at the end. Enabling daylight savings time causes 1 hour to be added to the standard time.
4. The modem router has a list of NETGEAR NTP servers. If you prefer to use a particular NTP server as the primary server, enter its IP address in the Use this NTP Server field.
5. Click Apply to save your settings.
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Scheduling Firewall Services
If you enabled services blocking in the Block Services screen or port forwarding in the Ports screen, you can set up a schedule for when blocking occurs or when access is not restricted.
1. Log in to the modem router at its default LAN address of http://192.168.0.1 with its default user name of admin default password of password, or using whatever password and LAN address you have chosen for the modem router.
2. On the main menu, select the Schedule. The Schedule screen appears.
3. To block Internet services based on a schedule, select Every Day or select one or more days. If you want to limit access completely for the selected days, select All Day. Otherwise, to limit access during certain times for the selected days, fill in the Start Blocking and End Blocking fields.
4. Enter the values in 24-hour time format. For example, 10:30 a.m. would be 10 hours and 30 minutes, and 10:30 p.m. would be 22 hours and 30 minutes. If you set the start time after the end time, the schedule will be effective through midnight the next day.
5. Click Apply to save your changes.
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Chapter 4
Managing Your Network
This chapter describes how to perform network management tasks with your ADSL2+ Modem
Wireless Router.
Backing Up, Restoring, or Erasing Your Settings
The configuration settings of the modem router are stored in a configuration file in the modem router. This file can be backed up to your computer, restored, or reverted to factory default settings. The procedures below explain how to do these tasks.
Backing Up the Configuration to a File
1. Log in to the modem router at its default LAN address of http://192.168.0.1 with its default user name of admin default password of password, or using whatever user name, password and LAN address you have chosen for the modem router.
2. Under the Maintenance heading on the main menu, select Backup Settings to display the
Backup Settings screen:
Figure 4-1
3. Click Backup to save a copy of the current settings.
4. Store the .cfg file on a computer on your network.
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Restoring the Configuration from a File
To restore the configuration:
1. Log in to the modem router at its default LAN address of http://192.168.0.1 with its default user name of admin default password of password, or using whatever user name, password and LAN address you have chosen for the modem router.
2. Under the Maintenance heading on the main menu, select Backup Settings.
3. Enter the full path to the file on your network, or click Browse to locate the file.
4. When you have located the .cfg file, click Restore to upload the file to the modem router.
5. The modem router reboots.
Erasing the Configuration
You can use the Erase feature to erase its configuration settings and restore the modem router to the factory default settings.
To erase the configuration:
1. Under the Maintenance heading on the main menu select, Backup Settings.
2. Click Erase.
3. The modem router reboots.
After an erase, the modem router password is password, the LAN IP address is 192.168.0.1, and the modem router DHCP client is enabled.
Note: To restore the factory default configuration settings when you do not know the login password or IP address, press both the Wireless button and WPS button on the side of the modem router for 5 seconds.
Upgrading the Modem Router Firmware
The software of the modem router is stored in flash memory, and can be upgraded as new software is released by NETGEAR. Upgrade files can be downloaded from the NETGEAR website. If the upgrade file is compressed (a .zip file), you must first extract the binary (.bin or .img) file before uploading it to the modem router.
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NETGEAR recommends that you back up your configuration before doing a firmware upgrade.
After the upgrade is complete, you might need to restore your configuration settings.
To upgrade the modem firmware:
1. Download and unzip the new software file from NETGEAR.
The Web browser used to upload new firmware into the modem router must support HTTP uploads. NETGEAR recommends using Microsoft Internet Explorer 5.0 or later, or Mozilla
Firefox 2.0 or later.
2. Log in to the modem router at its default LAN address of http://192.168.0.1 with its default user name of admin default password of password, or using whatever user name, password and LAN address you have chosen for the modem router.
3. From the main menu, under the Maintenance heading, select Router Upgrade to display the
Firmware Upgrade screen:
Figure 4-2
4. Click Browse to locate the binary (.bin or .img) upgrade file.
5. Click Upload.
Warning: When uploading software to the modem router, it is important not to interrupt the Web browser by closing the window, clicking a link, or loading a new page. If the browser is interrupted, it might corrupt the software, causing modem router to be unworkable and inaccessible.
When the upload is complete, your modem router will automatically restart. The upgrade process typically takes about 1 minute. In some cases, you might need to clear the configuration and reconfigure the modem router after upgrading.
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Network Management Information
The modem router provides a variety of status and usage information which is discussed below.
Viewing Modem Router Status and Usage Statistics
From the main menu, below the Maintenance heading, select Router Status to view this screen.
Figure 4-3
The Router Status screen provides status and usage information. This screen shows the following parameters:
Table 4-1. Modem Router Status Fields
Field
Account Name
Firmware Version
Description
The host name assigned to the modem router in the Basic
Settings screen.
This field displays the modem router firmware version.
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Table 4-1. Modem Router Status Fields (continued)
Field
ADSL Port
LAN Port
Modem
MAC Address
IP Address
Network Type
IP Subnet Mask
Domain Name Server
(DNS)
MAC Address
IP Address
DHCP
IP Subnet Mask
Description
The Ethernet MAC address used by the ADSL port of the modem router.
The IP address used by the ADSL port. If no address is shown, the modem router cannot connect to the Internet.
The network type is determined by your ISP. Common network types are PPPoE and PPPoA.
The IP subnet mask used by the ADSL port.
The DNS server IP addresses used by the modem router.
These addresses are usually obtained dynamically from the
ISP.
The Ethernet MAC address used by the local (LAN) port of the modem router.
The IP address used by the local (LAN) port. The default is
192.168.0.1.
• Off: The modem router will not assign IP addresses to PCs on the LAN.
• On: The modem router assigns IP addresses to PCs on the
LAN.
The IP subnet mask used by the local (LAN) port. The default is 255.255.255.0.
The version of the firmware.
ADSL Firmware
Version
Modem Status
Downstream Speed
Upstream Speed
VPI
VCI
The connection status of the modem.
The speed at which the modem is receiving data from the
ADSL line.
The speed at which the modem is transmitting data to the
ADSL line.
The virtual path identifier setting.
The virtual channel identifier setting.
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Table 4-1. Modem Router Status Fields (continued)
Field
Wireless Port
These are set in the Wireless
Settings page; see
Wireless Settings” on page 2-7
.
Name (SSID)
Region
Channel
Wireless AP
Broadcast Name
Description
The service set ID, also known as the wireless network name.
The country where the unit is set up for use.
The current channel, which determines the operating frequency.
Indicates if the access point feature is disabled or not. If not enabled, the Wireless LED on the front panel will be off.
Indicates if the DG834G v5 is configured to broadcast its
SSID.
Viewing Statistics
Click the Show Statistics button on the Router Status screen to display modem router usage statistics:
Figure 4-4
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This following table explains the statistic fields.
Table 4-2. Router Statistics Fields
Field
WAN (Internet),
LAN, or WLAN
(Wireless LAN) statistics
Status
TxPkts
RxPkts
Collisions
Tx B/s
Rx B/s
ADSL Link
Downstream or
Upstream
These statistics might help your technical support representative if there is a connection problem.
Up Time
Connection Speed
Line Attenuation
Noise Margin
Poll Interval
Description
The link status of the port.
The number of packets transmitted on this port since reset or manual clear.
The number of packets received on this port since reset or manual clear.
The number of collisions on this port since reset or manual clear.
The average egress line utilization for this port.
The average ingress line utilization
for this port.
The time elapsed since the last power cycle or reset.
Typically, the downstream speed is faster than the upstream speed.
The line attenuation increases the further you are physically located from your ISP’s facilities.
This is the signal-to-noise ratio and is a measure of the quality of the signal on the line.
Specifies the interval at which the statistics are updated in this window. Click Stop to freeze the display.
Viewing Connection Status
Click the Connection Status button on the Router Status screen to view the connection status:
Figure 4-5
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This screen shows the following statistics:
Table 4-3. Connection Status Fields for PPPoA
Field
Connection Time
Connecting to
Sender
Negotiation
Authentication
IP Address
Network Mask
Description
The time elapsed since the last connection to the Internet via the ADSL port.
The connection status.
Success or Off.
Success or Off.
The IP address assigned to the WAN port by the ADSL Internet Service Provider.
The network mask assigned to the WAN port by the ADSL Internet Service Provider.
Viewing Attached Devices
The Attached Devices screen contains a table of all IP devices that the modem router has discovered on the local network. From the main menu, under the Maintenance heading, select
Attached Devices. The Attached Devices screen displays:
Figure 4-6
For each device, the table shows the IP address, device name if available, and the Ethernet MAC address. Note that if the modem router is rebooted, the table data is lost until the modem router rediscovers the devices. To force the modem router to look for attached devices, click the Refresh button.
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Viewing, Selecting, and Saving Logged Information
The modem router logs security-related events such as denied incoming service requests, hacker probes, and administrator logins. If you enabled content filtering in the Block Sites screen, the
Logs screen can show you when someone on your network tries to access a blocked site. If you enabled e-mail notification, you receive these logs in an e-mail message. If you do not have e-mail notification enabled, you can view the logs here.
An example of the logs file is shown in the following figure:
Figure 4-7
Log entries are described in the following table.
Table 4-4. Security Log Entry Descriptions
Field
Current time
Description or action
Description
The date and time the log entry was recorded.
The type of event and what action was taken if any.
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Table 4-4. Security Log Entry Descriptions
Field Description
Source IP
Source port and interface
Destination
The IP address of the initiating device for this log entry.
The service port number of the initiating device, and whether it originated from the LAN or WAN.
The name or IP address of the destination device or website.
Destination port and interface
The service port number of the destination device, and whether it is on the LAN or WAN.
Log action buttons are described in the following table.
Table 4-5. Log Action Buttons
Field
Refresh
Clear Log
Send Log
Apply
Cancel
Description
Refresh the log screen.
Clear the log entries.
Email the log immediately.
Apply the current settings.
Clear the current settings.
Selecting Which Information to Log
Besides the standard information listed previously, you can choose to log additional information.
Those optional selections are as follows:
• Attempted access to blocked site
• Connections to the Web-based interface of the modem router
• Modem Router operation (start up, get time, etc.)
• Known DoS attacks and port scans
Saving Log Files on a Server
You can choose to write the logs to a computer running a syslog program. To activate this feature, select to the Broadcast on LAN radio button or enter the IP address of the server where the syslog file will be written.
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Log Message Examples
Following are examples of log messages. In all cases, the log entry shows the timestamp as: Day,
Year-Month-Date Hour:Minute:Second.
Activation and Administration
Tue, 2002-05-21 18:48:39 - NETGEAR activated
[This entry indicates a power-up or reboot with initial time entry.]
Tue, 2002-05-21 18:55:00 - Administrator login successful - IP:192.168.0.2
Thu, 2002-05-21 18:56:58 - Administrator logout - IP:192.168.0.2
[This entry shows an administrator logging in and out from IP address 192.168.0.2.]
Tue, 2002-05-21 19:00:06 - Login screen timed out - IP:192.168.0.2
[This entry shows a time-out of the administrator login.]
Wed, 2002-05-22 22:00:19 - Log emailed
[This entry shows when the log was e-mailed.]
Dropped Packets
Wed, 2002-05-22 07:15:15 - TCP packet dropped - Source:64.12.47.28,4787,WAN -
Destination:134.177.0.11,21,LAN - [Inbound Default rule match]
Sun, 2002-05-22 12:50:33 - UDP packet dropped - Source:64.12.47.28,10714,WAN -
Destination:134.177.0.11,6970,LAN - [Inbound Default rule match]
Sun, 2002-05-22 21:02:53 - ICMP packet dropped - Source:64.12.47.28,0,WAN -
Destination:134.177.0.11,0,LAN - [Inbound Default rule match]
[These entries show an inbound FTP (port 21) packet, User Datagram Protocol (UDP) packet
(port 6970), and Internet Control Message Protocol (ICMP) packet (port 0) being dropped as a result of the default inbound rule, which states that all inbound packets are denied.]
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Enabling Security Event E-mail Notification
To receive logs and alerts by e-mail, you must provide your e-mail information in the E-mail screen:
Figure 4-8
• Turn e-mail notification on. Select this check box if you want to receive e-mail logs and alerts from the modem router.
• Send alerts and logs via email.
– Send To This E-mail Address. Enter the e-mail address where you want to send the alerts and logs. Use a full e-mail address, such as [email protected].
– Outgoing Mail Server. Enter the name or IP address of the outgoing SMTP mail server of your ISP (such as mail.myISP.com).
– My Mail Server requires authentication. Select this check box if you need to log in to your SMTP server to send E-mail. If you select this feature, you must enter the user name and password for the mail server.
Tip: If you cannot remember this information, check the settings in your e-mail program.
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• Send alert immediately. Select the corresponding check box if you would like immediate notification of a significant security event, such as a known attack, port scan, or attempted access to a blocked site.
• Send logs according to this schedule. Specifies how often to send the logs: Hourly, Daily,
Weekly, or When Full.
– Day for sending log. Specifies which day of the week to send the log. Relevant when the log is sent weekly.
– Time for sending log. Specifies the time of day to send the log. Relevant when the log is sent daily or weekly.
If the Weekly, Daily, or Hourly option is selected and the log fills up before the specified period, the log is automatically e-mailed to the specified e-mail address. After the log is sent, it is cleared from the modem router’s memory. If the modem router cannot e-mail the log file, the log buffer might fill up. In this case, the modem router overwrites the log and discards its contents.
Running Diagnostic Utilities and Rebooting the Modem
Router
The modem router has a diagnostics feature. You can use the Diagnostics screen to perform the following functions from the modem router:
• Ping an IP address to test connectivity to see if you can reach a remote host. If Ping VPN is enabled, the ping packet always goes through the VPN if the VPN tunnel is enabled and working.
• Perform a DNS lookup to test if an Internet name resolves to an IP address to verify that the
DNS server configuration is working.
• Display the routing table to identify what other modem routers the modem router is communicating with.
• Reboot the modem router to enable new network configurations to take effect or to clear problems with the modem router’s network connection.
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From the main menu, under the Maintenance heading, select Modem Router Diagnostics to display the Diagnostics screen:
Figure 4-9
Enabling Remote Management
Using the Remote Management screen, you can allow a user or users on the Internet to configure, upgrade, and check the status of your modem router.
Tip: Be sure to change the modem router default password to a very secure password.
The ideal password should contain no dictionary words from any language, and should be a mixture of letters (both upper-case and lower-case), numbers, and symbols. Your password can be up to 30 characters.
Configuring Remote Management
1. Log in to the modem router at its default LAN address of http://192.168.0.1 with its default user name of admin default password of password, or using whatever user name, password and LAN address you have chosen for the modem router.
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2. Under the Advanced heading of the main menu, select Remote Management to display the
Remote Management screen:
Figure 4-10
3. Select the Turn Remote Management On check box.
4. Specify which external addresses will be allowed to access the modem router’s remote management.
For security, restrict access to as few external IP addresses as practical:
• To allow access from any IP address on the Internet, select Everyone.
• To allow access from a range of IP addresses on the Internet, select IP address range.
Enter a beginning and ending IP address to define the allowed range.
• To allow access from a single IP address on the Internet, select Only This Computer.
Enter the IP address that will be allowed access.
5. Specify the port number that will be used for accessing the management interface.
Web browser access normally uses the standard HTTP service port 80. For greater security, you can change the remote management Web interface to a custom port by entering that number in the field provided. Choose a number between 1024 and 65535, but do not use the number of any common service port. The default is 8080, which is a common alternate for
HTTP.
6. Click Apply to have your changes take effect.
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When accessing your modem router from the Internet, you will type your modem router WAN
IP address in your Internet browser address or location field, followed by a colon (:) and the custom port number. For example, if your external address is 134.177.0.123 and you use port number 8080, enter:
http://134.177.0.123:8080
Note: In this case, you must include http:// in the address.
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Managing Your Network
Chapter 5
Advanced Configuration
This chapter describes how to configure the advanced features of your ADSL2+ Modem Wireless
Router.
The ADSL2+ Modem Wireless Router provides a variety of advanced features, such as the following:
•
•
“Configuring Your LAN IP Settings”
•
“Using the Modem Router as a DHCP Server”
•
•
•
“Configuring Universal Plug and Play (UPnP)”
•
“Configuring Wireless Bridging and Repeating (WDS)”
These features are discussed in the following sections of this chapter.
Modifying Your WAN Setup
To view or change the WAN Setup:
1. Log in to the modem router at its default LAN address of http://192.168.0.1 with its default user name of admin and default password of password, or using whatever password and LAN address you have chosen for the modem router.
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2. From the main menu, select WAN Setup to display the WAN Setup screen:
Figure 5-1
3. Make the changes that you want, and then click Apply to save the settings.
The WAN Setup fields are described in the following table:
Table 5-1. WAN Setup Settings
Setting Description
Connect Automatically, as
Required
Usually, this check box is selected, so that an Internet connection is made automatically, whenever Internet-bound traffic is detected. If this causes high connection costs, you can disable this setting.
• If disabled, you must connect manually, using the screen accessed from the Connection Status button on the Router Status screen.
• If you have an “Always on” connection, this setting has no effect.
Enable PPPOE-RELAY
Disable Port Scan and DOS
Protection
If this check box is selected, this feature allows a PPPoE client on a local PC to a remote PPPoE server with the gateway acting as a relay agent.
This check box is usually clear so that the firewall protects your LAN against port scans and denial of service (DOS) attacks. This check box should be selected only in special circumstances.
Default DMZ Server This feature is sometimes helpful when you are using some online games and videoconferencing. Be careful when using this feature because it makes the firewall security less effective. See
Default DMZ Server” on page 5-3
.
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Table 5-1. WAN Setup Settings
Setting Description
Respond to Pin on Internet
WAN Port
MTU Size (in bytes)
If you want the modem router to respond to a ping from the Internet, select this check box. This should be used only as a diagnostic tool, since it allows your modem router to be discovered. Do not select this check box unless you have a specific reason to do so.
The normal MTU (Maximum Transmit Unit) value for most Ethernet networks is 1500 bytes, or 1492 Bytes for PPPoE connections. For some ISPs you might need to reduce the MTU. This is rarely required, and should not be done unless you are sure it is necessary for your ISP connection.
Setting Up a Default DMZ Server
Warning: For security reasons, you should avoid using the default DMZ server feature.
When a computer is designated as the default DMZ server, it loses much of the protection of the firewall, and is exposed to many exploits from the
Internet. If compromised, the computer can be used to attack your network.
The default DMZ server feature is helpful when you are using some online games and videoconferencing applications that are incompatible with NAT. The modem router is programmed to recognize some of these applications and to work properly with them, but there are other applications that may not function well. In some cases, one local computer can run the application properly if that computer’s IP address is entered as the default DMZ server.
Incoming traffic from the Internet is normally discarded by the modem router unless the traffic is a response to one of your local computers or a service that you have configured in the Ports screen.
Instead of discarding this traffic, you can have it forwarded to one computer on your network. This computer is called the default DMZ server.
To assign a computer or server to be a default DMZ server:
1. Go to the WAN Setup screen as described in the previous section.
2. Select the Default DMZ Server check box.
3. Type the IP address for that server.
4. Click Apply to save your changes.
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Configuring Your LAN IP Settings
The LAN IP Setup screen allows configuration of LAN IP services such as DHCP and RIP. These features can be found under the Advanced heading in the modem router main menu.
The modem router is shipped preconfigured to use private IP addresses on the LAN side, and to act as a DHCP server. The modem router default LAN IP configuration is:
• LAN IP addresses: 192.168.0.1
• Subnet mask: 255.255.255.0
These addresses are part of the Internet Engineering Task Force (IETF)-designated private address range for use in private networks, and should be suitable in most applications. If your network has a requirement to use a different IP addressing scheme, you can make those changes in this screen.
To view or change the LAN IP Setup:.
Warning: If you change the LAN IP address of the modem router while connected through the browser, you will be disconnected and so will others connected to the modem router. To connect to the modem router, you must open a new connection to the new IP address and log in again. Others using the modem router must restart their computers to connect to the modem router again.
1. Select LAN IP to display the LAN IP Setup screen:
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2. Change the settings. For more information, see
, “Using the Modem Router as a
or “Defining Reserved IP Addresses” on page 5-7
.
3. Click Apply to save the changes.
The LAN TCP/IP Setup parameters are explained in the following table.
Table 5-2. LAN IP Setup
Settings
LAN TCP/IP
Setup
IP Address
IP Subnet Mask
RIP Direction
RIP Version
DHCP Server
For more information, see
Use Router as a DHCP
Server
Starting IP Address
Ending IP Address
Description
The LAN IP address of the modem router.
The LAN subnet mask of the modem router. Combined with the IP address, the IP Subnet Mask allows a device to know which other addresses are local to it, and which must be reached through a gateway or modem router.
RIP (Router Information Protocol) allows a modem router to exchange routing information with other routers. This setting controls how the modem router sends and receives
RIP packets. Both is the default.
• Both or Out Only. The modem router broadcasts its routing table periodically.
• Both or In Only. The modem router incorporates the RIP information that it receives.
• None. The modem router will not send any RIP packets and will ignore any RIP packets received.
This controls the format and the broadcasting method of the
RIP packets that the modem router sends. It recognizes both formats when receiving. By default, this is RIP-1.
• RIP-1 is universally supported. It is adequate for most networks, unless you have an unusual network setup.
• RIP-2 carries more information. Both RIP-2B and RIP-2M send the routing data in RIP-2 format. RIP-2B uses subnet broadcasting. RIP-2M uses multicasting.
This check box is usually selected so that the modem router functions as a Dynamic Host Configuration Protocol
(DHCP) server. See
“Using the Modem Router as a DHCP
Specify the start of the range for the pool of IP addresses in the same subnet as the modem router.
Specify the end of the range for the pool of IP addresses in the same subnet as the modem router.
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Table 5-2. LAN IP Setup
Settings Description
Address Reservation
For more information, see
Router as a DHCP Server” on page 5-6 .
When you specify a reserved IP address for a computer on the LAN, that computer receives the same IP address each time it access the router’s DHCP server. Assign reserved IP addresses to servers that require permanent IP settings.
Using the Modem Router as a DHCP Server
By default, the modem router functions as a Dynamic Host Configuration Protocol (DHCP) server, allowing it to assign IP, DNS server, and default gateway addresses to all computers connected to the modem router’s LAN. The assigned default gateway address is the LAN address of the modem router. IP addresses is assigned to the attached PCs from a pool of addresses specified in this screen. Each pool address is tested before it is assigned to avoid duplicate addresses on the LAN.
For most applications, the default DHCP and TCP/IP settings of the modem router are satisfactory.
See the online document listed in “Internet Networking and TCP/IP Addressing” in Appendix C
for an explanation of DHCP and information about how to assign IP addresses for your network.
Use Router as DHCP Server
If another device on your network will be the DHCP server, or if you will manually configure the network settings of all of your computers, clear the Use Router as DHCP Server check box on the LAN IP Setup screen. Otherwise, leave it selected.
Specify the pool of IP addresses to be assigned by filling in the Starting IP Address and Ending
IP Address fields. These addresses should be part of the same IP address subnet as the modem router’s LAN IP address. Using the default addressing scheme, you should define a range between
192.168.0.2 and 192.168.0.254, although you might want to save part of the range for devices with fixed addresses.
The modem router delivers the following parameters to any LAN device that requests DHCP:
• An IP address from the range you have defined.
• Subnet mask.
• Gateway IP Address is the router’s LAN IP address.
• Primary DNS server, if you entered a primary DNS address in the Basic Settings screen; otherwise, the router’s LAN IP address.
• Secondary DNS server, if you entered a secondary DNS address in the Basic Settings screen.
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• WINS Server (Windows Internet Naming Service Server), determines the IP address associated with a particular Windows computer. A WINS server records and reports a list of names and IP address of Windows PCs on its local network. If you connect to a remote network that contains a WINS server, enter the server’s IP address here. This allows your PCs to browse the network using the Network Neighborhood feature of Windows.
Defining Reserved IP Addresses
When you specify a reserved IP address for a computer on the LAN, that computer always receives the same IP address each time it access the modem router’s DHCP server. Reserved IP addresses should be assigned to servers that require permanent IP settings.
To reserve an IP address:
1. Click the Add button.
2. In the IP Address field, type the IP address to assign to the computer or server.
Choose an IP address from the router’s LAN subnet, such as 192.168.0.x.
3. Type the MAC address of the computer or server.
Tip: If the computer is on your network, it is listed on the same page for your convenience. Clicking the radio button for each entry in the attached device list fills in the fields automatically with the computer’s MAC address and name.
4. Click Apply to enter the reserved address into the table.
Note: The reserved address will not be assigned until the next time the computer contacts the router’s DHCP server. Reboot the computer or access its IP configuration and force a DHCP release and renew.
To edit or delete a reserved address entry:
1. Click the button next to the reserved address you want to edit or delete.
2. Click Edit or Delete.
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Configuring Dynamic DNS
If your network has a permanently assigned IP address, you can register a domain name and have that name linked with your IP address by public Domain Name Servers (DNS). However, if your
Internet account uses a dynamically assigned IP address, you will not know in advance what your
IP address will be, and the address can change frequently. In this case, you can use a commercial
Dynamic DNS service to register your domain to their IP address, and forward traffic directed at your domain to your frequently changing IP address.
The modem router contains a client that can connect to a Dynamic DNS service provider. To use this feature, you must select a service provider and obtain an account with them. After you have configured your account information in the modem router, whenever your ISP-assigned IP address changes, your modem router will automatically contact your Dynamic DNS service provider, log in to your account, and register your new IP address.
To configure Dynamic DNS:
Warning: If your ISP assigns a private WAN IP address such as 192.168.x.x or 10.x.x.x, the Dynamic DNS service will not work because private addresses will not be routed on the Internet.
1. Log in to the modem router at its default LAN address of http://192.168.0.1 with its default user name of admin default password of password, or using whatever user name, password and LAN address you have chosen for the modem router.
2. From the main menu, select Dynamic DNS to display the Dynamic DNS screen:
Figure 5-3
3. Access the website of one of the Dynamic DNS service providers whose names appear in the
Service Provider drop-down list, and register for an account.
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For example, for dyndns.org, go to www.dyndns.org.
4. Select the Use a Dynamic DNS Service check box.
5. Select the name of your dynamic DNS service provider.
6. Fill in the Host Name, User Name, and Password fields.
The dynamic DNS service provider may call the host name a domain name. If your URL is myName.dyndns.org, then your host name is myName. The password can be a key for your dynamic DNS account.
7. If your dynamic DNS provider allows the use of wildcards in resolving your URL, you can select the Use wildcards check box to activate this feature.
For example, the wildcard feature will cause *.yourhost.dyndns.org to be aliased to the same
IP address as yourhost.dyndns.org.
8. Click Apply to save your configuration.
Using Static Routes
Static routes provide additional routing information to your modem router. Under normal circumstances, the modem router has adequate routing information after it has been configured for
Internet access, and you do not need to configure additional static routes. You must configure static routes only for unusual cases such as multiple routers or multiple IP subnets located on your network.
Static Route Example
As an example of when a static route is needed, consider the following case:
• Your primary Internet access is through a cable modem to an ISP.
• You have an ISDN router on your home network for connecting to the company where you are employed. This router’s address on your LAN is 192.168.0.100.
• Your company’s network is 134.177.0.0.
When you first configured your router, two implicit static routes were created. A default route was created with your ISP as the modem router, and a second static route was created to your local network for all 192.168.0.x addresses. With this configuration, if you attempt to access a device on the 134.177.0.0 network, your router forwards your request to the ISP. The ISP forwards your request to the company where you are employed, and the request is likely to be denied by the company’s firewall.
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In this case you must define a static route, telling your router that 134.177.0.0 should be accessed through the ISDN router at 192.168.0.100. The static route would look like Figure 5-5 .
In this example:
• The Destination IP Address and IP Subnet Mask fields specify that this static route applies to all 134.177.x.x addresses.
• The Gateway IP Address fields specify that all traffic for these addresses should be forwarded to the ISDN router at 192.168.0.100.
• In the Metric field, a value of 1 will work since the ISDN router is on the LAN.
This represents the number of routers between your network and the destination. This is a direct connection, so it is set to 1.
• Private is selected only as a precautionary security measure in case RIP is activated.
Configuring Static Routes
1. Log in to the modem router at its default LAN address of http://192.168.0.1 with its default user name of admin and default password of password, or using whatever user name, password and LAN address you have chosen for the modem router.
2. From the main menu, under the Advanced heading, select Static Routes to view the Static
Routes screen:
Figure 5-4
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3. Click Add or Edit to display the following screen:
Figure 5-5
4. Fill in or change the fields:
• Route Name. The route name is for identification purposes only.
• Private. Select this check box if you want to limit access to the LAN only.
The static route will not be reported in RIP.
• Active. Select this check box to make this route effective.
• Destination IP Address, and IP Subnet Mask. If the destination is a single host, type a subnet value of 255.255.255.255.
• Gateway IP Address. This must be a router on the same LAN segment as the modem router.
• Metric. Type a number between 2 and 15. This represents the number of routers between your network and the destination. Usually, a setting of 2 or 3 works, but if this is a direct connection, set it to 2.
5. Click Apply to either save your changes. If you added a static route, it is added to the Static
Routes screen.
Configuring Universal Plug and Play (UPnP)
Universal Plug and Play (UPnP) helps devices, such as Internet appliances and computers, access the network and connect to other devices as needed. UPnP devices can automatically discover the services from other registered UPnP devices on the network.
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1. Select UPnP on the main menu to display the UPnP screen:
Figure 5-6
2. Fill in the settings on the UPnP screen:
• Turn UPnP On. UPnP can be enabled or disabled for automatic device configuration. The default setting for UPnP is enabled. If disabled, the modem router will not allow any device to automatically control the resources, such as port forwarding (mapping), of the modem router.
• Advertisement Period. The advertisement period is how often the modem router advertises (broadcasts) its UPnP information. This value can range from 1 to 1440 minutes. The default period is for 30 minutes. Shorter durations ensure that control points have current device status at the expense of additional network traffic. Longer durations might compromise the freshness of the device status but can significantly reduce network traffic.
• Advertisement Time To Live. The time to live for the advertisement is measured in hops
(steps) for each UPnP packet sent. A hop is the number of steps allowed to propagate for each UPnP advertisement before it disappears. The number of hops can range from 1 to
255. The default value for the advertisement time to live is 4 hops, which should be fine for most home networks. If you notice that some devices are not being updated or reached correctly, then it might be necessary to increase this value a little.
• UPnP Portmap Table. The UPnP Portmap Table displays the IP address of each UPnP device that is currently accessing the modem router and which ports (internal and external) that device has opened.
3. To save, cancel your changes, or refresh the table:
• Click Apply to save the new settings to the modem router.
• Click Cancel to disregard any unsaved changes.
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• Click Refresh to update the portmap table and to show the active ports that are currently opened by UPnP devices.
Configuring Wireless Bridging and Repeating (WDS)
You can build large bridged wireless networks by using the modem router to configure a wireless distribution system (WDS). On the main menu, below the Advanced heading, select Wireless
Settings, and then select the WDS radio button. The following screen displays:
Figure 5-7
Note: Unless you change the security configuration, the wireless bridging and repeating feature uses the default security profile to send and receive traffic.
Here are some examples of wireless bridged configurations:
• Point-to-Point bridge. The modem router communicates with another bridge-mode wireless
station. See “Point-to-Point Bridge Configuration” .
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• Multi-Point bridge. The modem router is the “master” for a group of bridge-mode wireless stations. Then all traffic is sent to this “master,” rather than to other access points. See
• Repeater with wireless client association. Sends all traffic to the remote access point. See
“Repeater with Wireless Client Association”
.
Point-to-Point Bridge Configuration
In Point-to-Point Bridge mode, the DG834G v5 modem router communicates as an access point with another bridge-mode wireless station. As a bridge, wireless client associations are disabled— only wired clients can be connected. You must enter the MAC address of the other bridge-mode wireless station in the field provided. Use wireless security to protect this communication.
The following figure shows an example of Point-to-Point Bridge mode.
Both APs (access points) are in
Point-to-Point Bridge mode.
AP 2
Internet
192.168.0.1
AP 1 (DG834v5 Modem Router)
Switch or hub
PC’s
LAN Segment 1
LAN Segment 2
PC’s
Figure 5-8
To set up a point-to-point bridge configuration (shown in Figure 5-8 ):
1. Configure the DG834G v5 modem router (AP 1) on LAN Segment 1 in Point-to-Point Bridge mode.
2. Configure the other access point (AP 2) on LAN Segment 2 in Point-to-Point Bridge mode.
The DG834G v5 modem router must have AP 2’s MAC address in its Remote MAC Address field, and AP 2 must have the DG834G v5’s MAC address in its Remote MAC Address field.
3. Configure and verify the following for both access points:
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• Both APs must use the same SSID, channel, authentication mode, if any, and security settings if security is in use.
4. Disable the DHCP server on AP2. AP1 will then be the DHCP server.
5. Verify connectivity across LAN Segment 1 and LAN Segment 2.
A computer on either LAN segment should be able to connect to the Internet or share files and printers of any other PCs or servers connected to LAN Segment 1 or LAN Segment 2.
Multi-Point Bridge Configuration
Multi-Point Bridge mode allows a modem router to bridge to multiple peer access points simultaneously. As a bridge, wireless client associations are disabled—only wired clients can be connected. Multi-Point Bridge mode configuration includes the following steps:
• Entering the MAC addresses of the other access points in the fields provided.
• Setting the other bridge-mode access points to Point-to-Point Bridge mode, using the MAC address of this DG834G v5 as the Remote MAC Address.
• Using wireless security to protect this traffic.
The figure below shows an example of a Multi-Point Bridge mode configuration.
The DG834v4 is AP 1, which is the “Master AP” in Point-to-Multi-Point Bridge mode.
DG834v5
AP 1
Internet
Point-to-Point
Bridge Mode
192.168.0.1
Point-to-Point
Bridge Mode
AP 3
PCs
LAN Segment 1
AP 2
Hub or switch
PCs
LAN Segment 3
Hub or switch
LAN Segment 2
PCs
Figure 5-9
To set up the multi-point bridge configuration shown in Figure 5-9 :
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1. Configure the operating mode of the modem routers.
• Because it is in a central location, configure the DG834G v5 modem router (AP 1) on
LAN Segment 1 in Point-to-Multi-Point Bridge mode and enter the MAC addresses of AP
2 and AP 3 in the Remote MAC Address 1 and Remote MAC Address 2 fields.
• Configure the access point (AP2) on LAN Segment 2 in Point-to-Point Bridge mode with the remote MAC address of the DG834G v5 modem router.
• Configure the access point (AP3) on LAN Segment 3 in Point-to-Point Bridge mode with the remote MAC address of the DG834G v5 modem router.
2. Disable the DHCP server on AP2 and AP3. AP1 will then be the DHCP server.
3. Verify the following for all access points:
• The LAN network configuration of the modem router and other access points are configured to operate in the same LAN network address range as the LAN devices.
• Only one AP, the DG834G v5 modem router in Figure 5-9 , is configured in Point-to-
Multi-Point Bridge mode; all the others are in Point-to-Point Bridge mode.
• All APs, including the DG834G v5 modem router, must be on the same LAN. That is, all the AP LAN IP addresses must be in the same network.
• All APs, including the DG834G v5 modem router, must use the same SSID, channel, authentication mode, if any, and encryption in use.
• All point-to-point APs must have the MAC address of AP 1 (the DG834G v5 modem router in the above diagram) in the Remote AP MAC address field.
4. Verify connectivity across the LANs.
• A computer on any LAN segment should be able to connect to the Internet or share files and printers with any other PCs or servers connected to any of the three LAN segments.
Note: Wireless stations configured as they are in Figure 5-9 will not be able to connect to the modem router or access points. If you require wireless stations to access any
LAN segment, you can use additional access points configured in Wireless Access
Point mode in any LAN segment.
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Repeater with Wireless Client Association
In this mode, the ADSL2+ Modem Wireless Router sends all traffic to a remote AP. For Repeater mode, you must enter the MAC address of the remote “parent” access point. Alternatively, you can configure the ADSL2+ Modem Wireless Router as the parent by entering the address of a “child” access point. Note that the following restrictions apply:
• You do not have the option of disabling client associations with this ADSL2+ Modem
Wireless Router.
• You cannot configure a sequence of parent/child APs. You are limited to only one parent AP, although if the DG834G v5 is the parent AP it can connect with up to four child APs.
The following figure shows an example of a Repeater Mode configuration.
Wireless PC associated with AP 1
DG834G v5 Modem Router
Wireless PC associated with AP2
Internet
192.168.0.1
AP 2 in Repeater mode
PCs
AP 1 (parent AP in Repeater mode)
AP 3 in Repeater mode
Wireless PC associated with AP 3
Figure 5-10
To set up a repeater with wireless client association:
1. Configure the operating mode of the devices.
• Configure AP 1 the DG834G v5 modem router in the previous figure) on LAN Segment 1 with the MAC address of AP 2 and AP 3 in the first two Remote MAC Address fields.
• Configure AP 2 with the MAC address of AP 1 in the Remote MAC Address field.
• Configure AP 3 with the MAC address of AP 1 in the Remote MAC Address field.
2. Verify the following for both access points:
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• The APs must be on the same LAN. That is, the LAN IP addresses for the APs must be in the same subnet.
• AP devices must use the same SSID, channel, authentication mode, and encryption.
3. Disable the DHCP servers on repeaters AP2 and AP3. AP1 will then be the DHCP server.
4. Verify connectivity across the LANs. A computer on any LAN segment should be able to connect to the Internet or share files and printers with any other PCs or servers connected to any of the three WLAN segments.
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Chapter 6
Virtual Private Networking
This chapter describes how to use the virtual private networking (VPN) features of the ADSL2+
Modem Wireless Router. VPN communications paths are called tunnels. VPN tunnels provide secure, encrypted communications between your local network and a remote network or computer.
See
“Virtual Private Networking (VPN)” in Appendix C
to learn more about VPN.
This chapter is organized as follows:
•
“Overview of VPN Configuration” on page 6-1
provides an overview of the two most common VPN configurations: client-to-gateway and gateway-to-gateway.
•
“Planning a VPN” on page 6-3 provides a worksheet for recording the configuration
parameters of the VPN you want to set up, along with the VPN Committee (VPNC) recommended default parameters set by the VPN Wizard.
•
“VPN Tunnel Configuration” on page 6-4
summarizes the three ways to configure a VPN tunnel: VPN Wizard (recommended for most situations), Auto Policy, and Manual Policy.
•
“Setting Up a Client-to-Gateway VPN Configuration” on page 6-5
provides the steps needed to configure a VPN tunnel between a remote PC and a network gateway using the VPN
Wizard and the NETGEAR ProSafe VPN Client.
•
“Setting Up a Gateway-to-Gateway VPN Configuration” on page 6-18 provides the steps
needed to configure a VPN tunnel between two network gateways using the VPN Wizard.
•
“VPN Tunnel Control” on page 6-25
provides the step-by-step procedures for activating, verifying, deactivating, and deleting a VPN tunnel once the VPN tunnel has been configured.
•
“Setting Up VPN Tunnels in Special Circumstances” on page 6-32
provides the steps needed to configure VPN tunnels when there are special circumstances and the VPNC recommended defaults of the VPN Wizard are inappropriate. The two alternatives for configuring VPN tunnels are Auto Policy and Manual Policy.
Overview of VPN Configuration
Two common scenarios for configuring VPN tunnels are between a remote PC and a network gateway; and between two or more network gateways. The DG834Gv5 supports both of these types of VPN configurations. The DG834Gv5 supports up to five concurrent tunnels.
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Client-to-Gateway VPN Tunnels
Client-to-gateway VPN tunnels provide secure access from a remote PC, such as a telecommuter connecting to an office network.
Figure 6-1
A VPN client access allows a remote PC to connect to your network from any location on the
Internet. In this case, the remote PC is one tunnel endpoint, running the VPN client software. The modem router on your network is the other tunnel endpoint. See
“Setting Up a Client-to-Gateway
VPN Configuration” on page 6-5 to set up this configuration.
Gateway-to-Gateway VPN Tunnels
Gateway-to-Gateway VPN Tunnels provide secure access between networks, such as a branch or home office and a main office.
Figure 6-2
A VPN between two or more NETGEAR VPN-enabled routers is a good way to connect branch or home offices and business partners over the Internet. VPN tunnels also enable access to network resources across the Internet. In this case, use DG834Gv5s on each end of the tunnel to form the
VPN tunnel end points. See “Setting Up a Gateway-to-Gateway VPN Configuration” on page 6-18
for information about how to set up this configuration.
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Planning a VPN
When you set up a VPN, it is helpful to plan the network configuration and record the configuration parameters on a worksheet:
Table 6-1. VPN Tunnel Configuration Worksheet
Connection Name:
Pre-Shared Key:
Secure Association -- Main Mode or Manual Keys:
Perfect Forward Secrecy -- Enabled or Disabled:
Encryption Protocol -- DES or 3DES:
Authentication Protocol -- MD5 or SHA-1:
Diffie-Hellman (DH) Group -- Group 1 or Group 2:
Key Life in seconds:
IKE Life Time in seconds:
VPN Endpoint Local IPSec ID LAN IP Address Subnet Mask
FQDN or Gateway IP
(WAN IP Address)
To set up a VPN connection, you must configure each endpoint with specific identification and connection information describing the other endpoint. You must configure the outbound VPN settings on one end to match the inbound VPN settings on other end, and vice versa.
This set of configuration information defines a security association (SA) between the two VPN endpoints. When planning your VPN, you must make a few choices first:
• Will the local end be any device on the LAN, a portion of the local network (as defined by a subnet or by a range of IP addresses), or a single PC?
• Will the remote end be any device on the remote LAN, a portion of the remote network (as defined by a subnet or by a range of IP addresses), or a single PC?
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• Will either endpoint use fully qualified domain names (FQDNs)? FQDNs supplied by
Dynamic DNS providers (see
“Using a Fully Qualified Domain Name (FQDN)” on page B-7 )
can allow a VPN endpoint with a dynamic IP address to initiate or respond to a tunnel request.
Otherwise, the side using a dynamic IP address must always be the initiator.
• Which method will you use to configure your VPN tunnels?
– The VPN Wizard using VPNC defaults (see
)
– The typical automated Internet Key Exchange (IKE) setup (see
Configure VPN Tunnels” on page 6-32
)
– A manual keying setup in which you must specify each phase of the connection (see
“Using Manual Policy to Configure VPN Tunnels” on page 6-42 )?
Table 6-2. Parameters Recommended by the VPNC and Used in the VPN Wizard
Parameter
Secure Association
Authentication Method
Encryption Method
Authentication Protocol
Diffie-Hellman (DH) Group
Key Life
IKE Life Time
Factory Default
Main Mode
Pre-shared Key
3DES
SHA-1
Group 2 (1024 bit)
8 hours
1 hour
• What level of IPSec VPN encryption will you use?
– DES. The Data Encryption Standard (DES) processes input data that is 64 bits wide, encrypting these values using a 56-bit key. Faster but less secure than 3DES.
– 3DES. Triple DES achieves a higher level of security by encrypting the data three times using DES with three different, unrelated keys.
• What level of authentication will you use?
– MDS. 128 bits, faster but less secure.
– SHA-1. 160 bits, slower but more secure.
VPN Tunnel Configuration
There are two tunnel configurations and three ways to configure them:
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• Use the VPN Wizard to configure a VPN tunnel (recommended for most situations):
– See
“Setting Up a Client-to-Gateway VPN Configuration” on page 6-5
.
– See
“Setting Up a Gateway-to-Gateway VPN Configuration” on page 6-18 .
• See
“Using Auto Policy to Configure VPN Tunnels” on page 6-32
when the VPN Wizard and its VPNC defaults (see
) are not appropriate for your special circumstances, but you want to automate the Internet Key Exchange (IKE) setup.
• See
“Using Manual Policy to Configure VPN Tunnels” on page 6-42
when the VPN Wizard and its VPNC defaults (see
) are not appropriate for your special circumstances and you must specify each phase of the connection. You manually enter all the authentication and key parameters. You have more control over the process; however, the process is more complex, and there are more opportunities for errors or configuration mismatches between your DG834Gv5 and the corresponding VPN endpoint gateway or client workstation.
Note: NETGEAR publishes additional interoperability scenarios with various gateway and client software products. Look on the NETGEAR website at
www.netgear.com
for these interoperability scenarios.
Setting Up a Client-to-Gateway VPN Configuration
Setting up a VPN between a remote PC running the NETGEAR ProSafe VPN Client and a network gateway involves these two steps:
•
“Step 1: Configuring the Client-to-Gateway VPN Tunnel on the DG834Gv5” on page 6-6
describes how to use the VPN Wizard to configure the VPN tunnel between the remote PC and network gateway.
•
“Step 2: Configuring the NETGEAR ProSafe VPN Client on the Remote PC” on page 6-10
shows how to configure the NETGEAR ProSafe VPN Client endpoint.
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Figure 6-3
Step 1: Configuring the Client-to-Gateway VPN Tunnel on the
DG834Gv5
Note: This section uses the VPN Wizard to set up the VPN tunnel using the VPNC
default parameters listed in Table 6-2 on page 6-4 . If you have special
requirements not covered by these VPNC-recommended parameters, refer to
“Setting Up VPN Tunnels in Special Circumstances” on page 6-32
to set up the
VPN tunnel.
The worksheet in Table 6-3 identifies the parameters used in the following procedure. A blank
worksheet is at “Planning a VPN” .
Table 6-3. VPN Tunnel Configuration Worksheet
Connection Name:
Pre-Shared Key:
Secure Association -- Main Mode or Manual Keys:
Perfect Forward Secrecy -- Enabled or Disabled:
Encryption Protocol -- DES or 3DES:
Authentication Protocol -- MD5 or SHA-1:
Diffie-Hellman (DH) Group -- Group 1 or Group 2:
Key Life in seconds:
IKE Life Time in seconds:
RoadWarrior
12345678
Main
Disabled
3DES
SHA-1
Group 2
28800
(8 hours)
3600
(1 hour)
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Table 6-3. VPN Tunnel Configuration Worksheet (continued)
VPN Endpoint Local IPSec ID LAN IP Address Subnet Mask
Client toDG834 — —
DG834Gv5 toClient 192.168.3.1
255.255.255.0
FQDN or Gateway IP
(WAN IP Address)
Dynamic
22.23.24.25
To configure a client-to-gateway VPN tunnel using the VPN Wizard, follow this procedure:
1. Log in to the modem router at its LAN address of http://192.168.0.1 with its default user name of admin and password of password. On the main menu, select VPN Wizard. The VPN
Wizard screen displays:
Figure 6-4
2. Click Next to proceed. Fill in the Connection Name and the pre-shared key fields. Select the radio button for the type of target end point, and then click Next to proceed.
Enter the new connection name, for example, 12345678.
Enter the pre-shared key.
Select the radio button:
A remote VPN client (single PC).
Figure 6-5
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Tip: The connection name is arbitrary and not relevant to how the configuration functions.
The Summary screen displays:
Figure 6-6
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To view the VPNC-recommended authentication and encryption settings used by the VPN
Wizard, click the here link. You can click Back to return to the Summary screen.
Figure 6-7
3. Click Done on the Summary screen to complete the configuration procedure. The VPN
Policies screen displays, showing that the new tunnel is enabled:
Figure 6-8
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To view or modify the tunnel settings, select the radio button next to the tunnel entry and click
Edit.
Note: See “Using Auto Policy to Configure VPN Tunnels” on page 6-32
to enable the
IKE keepalive capability on an existing VPN tunnel.
Step 2: Configuring the NETGEAR ProSafe VPN Client on the
Remote PC
This procedure describes how to configure the NETGEAR ProSafe VPN Client. These instructions assume that the PC running the client has a dynamically assigned IP address.
The PC must have the NETGEAR ProSafe VPN Client program installed that supports IPSec. Go to the NETGEAR website (
http://www.netgear.com
) for information about how to purchase the
NETGEAR ProSafe VPN Client.
Note: Before installing the NETGEAR ProSafe VPN Client software, be sure to turn off any virus protection or firewall software you might be running on your PC. You might need to insert your Windows CD to complete the installation.
1. Install the NETGEAR ProSafe VPN Client on the remote PC, and then reboot.
a. Install the IPSec component. You might have the option to install either the VPN adapter or the IPSec component or both. The VPN adapter is not necessary.
If you do not have a modem or dial-up adapter installed in your PC, you might see the warning message stating “The NETGEAR ProSafe VPN Component requires at least one dial-up adapter be installed.” You can disregard this message.
b. Reboot the remote PC.
The ProSafe icon ( ) is in the system tray.
c.
Double-click the ProSafe icon to open the Security Policy Editor.
2. Add a new connection.
a. Run the NETGEAR ProSafe Security Policy Editor program, and, using the “VPN Tunnel
Configuration Worksheet” on page 6-6 , create a VPN connection.
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b. From the Edit menu of the Security Policy Editor, click Add, and then click Connection.
Figure 6-9
A New Connection listing appears in the list of policies. Rename the New Connection so that it matches the Connection Name field in the VPN Settings screen of the DG834Gv5 on LAN A.
Note: In this example, the connection name used on the client side of the VPN tunnel is toDG834, and it does not have to match the RoadWarrior connection name used on the gateway side of the VPN tunnel because connection names are irrelevant to how the VPN tunnel functions.
Tip: Choose connection names that make sense to the people using and administering the VPN.
c.
Enter the following settings:
• Connection Security: Secure.
• ID Type: IP Subnet.
• Subnet: In this example, type 192.168.3.1 as the network address of the DG834Gv5.
• Mask: Enter 255.255.255.0 as the LAN Subnet Mask of the DG834Gv5.
• Protocol: Select All to allow all traffic through the VPN tunnel.
d. Select the Connect using Secure Gateway Tunnel check box.
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e.
Select IP Address in the ID Type drop-down list.
f.
Enter the public WAN IP Address of the DG834Gv5 in the field directly below the ID
Type drop-down list. In this example, 22.23.24.25 is used.
The resulting connection settings are shown in
.
3. Configure the security policy in the NETGEAR ProSafe VPN Client software:
a. In the Network Security Policy list, expand the new connection by double-clicking its name or clicking the + symbol. My Identity and Security Policy subheadings appear below the connection name.
b. Click the Security Policy subheading to view the Security Policy settings.
Figure 6-10 c.
In the Select Phase 1 Negotiation Mode section of the screen, select the Main Mode radio button.
4. Configure the VPN client identity.
In this step, you provide information about the remote VPN client PC. You must provide the pre-shared key that you configured in the DG834Gv5 and either a fixed IP address or a fixed virtual IP address of the VPN client PC.
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a. In the Network Security Policy list on the left side of the Security Policy Editor window, click My Identity.
Figure 6-11
b. In the Select Certificate drop-down list, select None.
c.
Select IP Address in the ID Type drop-down list. If you are using a virtual fixed IP address, enter this address in the Internal Network IP Address field. Otherwise, leave this field empty.
d. In the Internet Interface section of the screen, select the adapter that you use to access the
Internet. If you have a dial-up Internet account, select PPP Adapter in the Name field. If you have a dedicated cable or DSL line, select your Ethernet adapter. If you will be switching between adapters or if you have only one adapter, select Any.
e.
In the My Identity section of the screen, click the Pre-Shared Key button. The Pre-Shared
Key screen displays:
Figure 6-12
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f.
Click Enter Key. Enter the DG834Gv5 pre-shared key, and then click OK. In this example, 12345678 is entered. This field is case-sensitive.
5. Configure the VPN Client Authentication Proposal.
In this step, you provide the type of encryption (DES or 3DES) to be used for this connection.
This selection must match your selection in the DG834Gv5 configuration.
a. In the Network Security Policy list on the left side of the Security Policy Editor window, expand the Security Policy heading by double-clicking its name or clicking the + symbol.
b. Expand the Authentication subheading by double clicking its name or clicking the + symbol. Then select Proposal 1 below Authentication.
Figure 6-13 c.
In the Authentication Method drop-down list, select Pre-Shared key.
d. In the Encrypt Alg drop-down list, select the type of encryption that is configured for the
Encryption Protocol in the DG834Gv5 in Table 6-3 on page 6-6 . In this example, use
Triple DES.
e.
In the Hash Alg drop-down list, select SHA-1.
f.
In the SA Life drop-down list, select Unspecified.
g. In the Key Group drop-down list, select Diffie-Hellman Group 2.
6. Configure the VPN client key exchange proposal.
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In this step, you provide the type of encryption (DES or 3DES) to be used for this connection.
This selection must match your selection in the DG834Gv5 configuration.
a. Expand the Key Exchange subheading by double-clicking its name or clicking the + symbol. Then select Proposal 1 below Key Exchange.
Figure 6-14
b. In the SA Life drop-down list, select Unspecified.
c.
In the Compression drop-down list, select None.
d. Select the Encapsulation Protocol (ESP) check box.
e.
In the Encrypt Alg drop-down list, select the type of encryption that is configured for the
Encryption Protocol in the DG834Gv5 in Table 6-3 on page 6-6 . In this example, use
Triple DES.
f.
In the Hash Alg drop-down list, select SHA-1.
g. In the Encapsulation drop-down list, select Tunnel.
h. Leave the Authentication Protocol (AH) check box cleared.
7. Save the VPN Client Settings.
In the Security Policy Editor window, select File > Save.
After you have configured and saved the VPN client information, your PC automatically opens the VPN connection when you attempt to access any IP addresses in the range of the remote VPN router’s LAN.
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8. Check the VPN connection.
To check the VPN Connection, you can initiate a request from the remote PC to the
DG834Gv5 modem router’s network by using the Connect option in the NETGEAR ProSafe menu bar. The NETGEAR ProSafe client reports the results of the attempt to connect. Since the remote PC has a dynamically assigned WAN IP address, it must initiate the request.
To perform a ping test using our example, start from the remote PC:
a. Establish an Internet connection from the PC.
b. On the Windows taskbar, click the Start button, and then click Run.
c.
Type ping -t 192.168.3.1, and then click OK.
Figure 6-15
This causes a continuous ping to be sent to the first DG834Gv5. After between several seconds and two minutes, the ping response should change from timed out to reply.
6-16
Figure 6-16
Once the connection is established, you can open a browser on the PC and enter the LAN IP address of the remote DG834Gv5. After a short wait, you should see the login screen of the modem router (unless another PC already has the DG834Gv5 management interface open).
You can view information about the progress and status of the VPN client connection by opening the NETGEAR ProSafe Log Viewer.
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To launch this function, click the Windows Start button, then select Programs > NETGEAR
ProSafe VPN Client > Log Viewer. The Log Viewer screen for a successful connection is shown in the following figure:
Figure 6-17
Note: Use the active VPN tunnel information and pings to determine whether a failed connection is due to the VPN tunnel or some reason outside the VPN tunnel.
9. The Connection Monitor screen for this connection is shown in the following figure:
Figure 6-18
In this example you can see these settings:
• The DG834Gv5 has a GW Address (public IP WAN address) of 22.23.24.25.
• The DG834Gv5 has a Remote Address (LAN IP address) of 192.168.3.1.
• The VPN client PC has a Local Address (dynamically assigned address) of 192.168.2.2.
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While the connection is being established, the Connection Name field in this screen displays SA before the name of the connection. When the connection is successful, the SA changes to the yellow key symbol shown in the previous figure.
Note: While your PC is connected to a remote LAN through a VPN, you might not have normal Internet access. If this is the case, you must close the VPN connection to have normal Internet access.
Setting Up a Gateway-to-Gateway VPN Configuration
Note: This section describes how to use the VPN Wizard to set up the VPN tunnel using
the VPNC default parameters listed in Table 6-2 on page 6-4 . If you have special
requirements not covered by these VPNC-recommended parameters, refer to
“Setting Up VPN Tunnels in Special Circumstances” on page 6-32 for information
about how to set up the VPN tunnel.
Follow this procedure to configure a gateway-to-gateway VPN tunnel using the VPN Wizard.
Figure 6-19
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Set the LAN IPs on each DG834Gv5 to different subnets and configure each properly for the
Internet. The examples below assume the following settings:
Table 6-4. VPN Tunnel Configuration Worksheet
Connection Name:
Pre-Shared Key:
Secure Association -- Main Mode or Manual Keys:
Perfect Forward Secrecy -- Enabled or Disabled:
Encryption Protocol -- DES or 3DES:
Authentication Protocol -- MD5 or SHA-1:
Diffie-Hellman (DH) Group -- Group 1 or Group 2:
Key Life in seconds:
IKE Life Time in seconds:
GtoG
12345678
Main
Disabled
3DES
SHA-1
Group 2
28800 (8 hours)
3600 (1 hour)
VPN Endpoint Local IPSec ID LAN IP Address Subnet Mask
DG834Gv5_A GW_A 192.168.0.1
255.255.255.0
DG834Gv5_B GW_B 192.168.3.1
255.255.255.0
FQDN or Gateway IP
(WAN IP Address)
14.15.16.17
22.23.24.25
Note: The LAN IP address ranges of each VPN endpoint must be different. The connection will fail if both are using the NETGEAR default address range of
192.168.0.x.
To configure a gateway-to-gateway VPN tunnel using the VPN Wizard:
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1. Log in to the DG834Gv5 on LAN A at its default LAN address of http://192.168.0.1 with its default user name of admin and password of password. Select VPN Wizard on the main menu. The VPN Wizard screen displays:
Figure 6-20
2. Click Next to proceed, and the Step 1 of 3 screen displays:
Enter the new connection name:
(for example, GtoG).
Enter the pre-shared key:
(for example, 12345678).
Select the radio button:
A remote VPN Gateway.
Figure 6-21
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3. Fill in the connection name and pre-shared key fields. Select the radio button for the type of target end point, and then click Next to proceed. The Step 2 of 3 screen displays:
Enter the WAN IP address of the remote VPN gateway: (for example,
22.23.24.25)
Figure 6-22
4. Fill in the IP address or FQDN for the target VPN endpoint WAN connection, and then click
Next. The Step 3 of 3 screen displays:
Enter the LAN IP settings of the remote
VPN gateway:
• IP Address (for example, 192.168.3.1)
• Subnet Mask (for example, 255.255.255.0)
Figure 6-23
5. Fill in the IP Address and Subnet Mask fields for the target endpoint that can use this tunnel, and then click Next.
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The VPN Wizard Summary screen displays:
Figure 6-24
To view the VPNC-recommended authentication and encryption settings used by the VPN
Wizard, click the here link (see
). You can click Back to return to the Summary screen.
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6. Click Done on the Summary screen (see Figure 6-24 ) to complete the configuration
procedure. The VPN Policies screen displays, showing that the new tunnel is enabled.
Figure 6-26
Note: See “Using Auto Policy to Configure VPN Tunnels” on page 6-32
for information about how to enable the IKE keepalive capability on an existing
VPN tunnel.
7. Repeat these steps for the DG834Gv5 on LAN B, and pay special attention to using the following network settings:
• WAN IP of the remote VPN gateway (for example, 14.15.16.17)
• LAN IP settings of the remote VPN gateway:
– IP Address (for example, 192.168.0.1)
– Subnet Mask (for example, 255.255.255.0)
– Preshared Key (for example, 12345678)
8. Use the VPN Status screen to activate the VPN tunnel by performing the following steps:
Note: The VPN Status screen is only one of three ways to active a VPN tunnel. See
“Activating a VPN Tunnel” on page 6-25
for information about the other ways.
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a. On the DG834Gv5 main menu, select VPN Status. The VPN Status/Log screen displays:
Figure 6-27
b. Click the VPN Status button to get the Current VPN Tunnels (SAs) screen:
6-24
Figure 6-28 c.
Click Connect for the VPN tunnel you want to activate. View the VPN Status/Log screen
( Figure 6-29 ) to verify that the tunnel is connected.
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VPN Tunnel Control
Activating a VPN Tunnel
There are three ways to activate a VPN tunnel:
• Use the VPN Status screen.
• Activate the VPN tunnel by pinging the remote endpoint.
• Start using the VPN tunnel.
Note: See “Using Auto Policy to Configure VPN Tunnels” on page 6-32
for information about how to enable the IKE keepalive capability on an existing VPN tunnel.
Using the VPN Status Page to Activate a VPN Tunnel
To use the VPN Status screen to activate a VPN tunnel:
1. Log in to the modem router.
2. On the main menu, select VPN Status. The VPN Status/Log screen displays:
Figure 6-29
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3. Click VPN Status to get the Current VPN Tunnels (SAs) screen:
Figure 6-30
4. Click Connect for the VPN tunnel that you want to activate.
Activating the VPN Tunnel by Pinging the Remote Endpoint
Note: This section uses 192.168.3.1 for an example remote endpoint LAN IP address.
To activate the VPN tunnel by pinging the remote endpoint (for example, 192.168.3.1), perform the following steps depending on whether your configuration is client-to-gateway or gateway-togateway:
• Client-to-gateway configuration. To check the VPN connection, you can initiate a request from the remote PC to the DG834Gv5’s network by using the Connect option in the
NETGEAR ProSafe menu bar. The NETGEAR ProSafe client reports the results of the attempt to connect. Since the remote PC has a dynamically assigned WAN IP address, it must initiate the request.
To perform a ping test using our example, start from the remote PC:
a. Establish an Internet connection from the PC.
b. On the Windows taskbar, click the Start button, and then click Run.
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c.
Type ping -t 192.168.3.1, and then click OK.
Running a ping test to the LAN from the PC
Figure 6-31
This causes a continuous ping to be sent to the first DG834Gv5. Within two minutes, the ping response should change from timed out to reply.
Note: You can use Ctrl-C to stop the pinging.
Figure 6-32
Once the connection is established, you can open a browser on the PC and enter the LAN IP address of the remote DG834Gv5. After a short wait, you should see the login screen of the modem router (unless another PC already has the DG834Gv5 management interface open).
• Gateway-to-gateway configuration. Test the VPN tunnel by pinging the remote network from a PC attached to the DG834Gv5.
a. Open a command prompt (for example, Start > Run > cmd).
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b. Type ping 192.168.3.1.
Figure 6-33
Note: The pings may fail the first time. If so, then try the pings a second time.
Start Using a VPN Tunnel to Activate It
To use a VPN tunnel, use a Web browser to go to a URL whose IP address or range is covered by the policy for that VPN tunnel.
Verifying the Status of a VPN Tunnel
To use the VPN Status screen to determine the status of a VPN tunnel:
1. Log in to the modem router.
2. On the main menu, select VPN Status to display the VPN Status/Log screen.
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This log shows the details of recent VPN activity, including the building of the VPN tunnel. If there is a problem with the VPN tunnel, refer to the log for information about what might be the cause of the problem.
• Click Refresh to see the most recent entries.
• Click Clear Log to delete all log entries.
3. On the VPN Status/Log screen, click VPN Status to display the Current VPN Tunnels (SAs) screen.
Figure 6-35
This table lists the following data for each active VPN tunnel.
• SPI. Each SA has a unique SPI (Security Parameter Index) for traffic in each direction.
For manual key exchange, the SPI is specified in the policy definition. For automatic key exchange, the SPI is generated by the IKE protocol.
• Policy Name. The VPN policy associated with this SA.
• Remote Endpoint. The IP address on the remote VPN endpoint.
• Action. Either a Drop or a Connect button.
• SLifeTime (Secs). The remaining soft lifetime for this SA in seconds. When the soft lifetime becomes 0 (zero), the SA (Security Association) is re-negotiated.
• HLifeTime (Secs). The remaining hard lifetime for this SA in seconds. When the hard lifetime becomes 0 (zero), the SA (Security Association) is terminated. (It is re-established if required.)
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Deactivating a VPN Tunnel
Sometimes a VPN tunnel must be deactivated for testing purposes. You can deactivate a VPN tunnel from two places:
• Policy table on VPN Policies screen
• VPN Status screen
Using the Policy Table on the VPN Policies Screen to Deactivate a VPN Tunnel
To use the VPN Policies screen to deactivate a VPN tunnel:
1. Log in to the modem router.
2. On the main menu, select VPN Policies to display the VPN Policies screen.
Figure 6-36
3. In the Policy Table, clear the Enable check box for the VPN tunnel that you want to deactivate, and then click Apply. (To reactivate the tunnel, select the Enable check box, and then click Apply.)
Using the VPN Status Screen to Deactivate a VPN Tunnel
To use the VPN Status screen to deactivate a VPN tunnel:
1. Log in to the modem router.
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2. On the main menu, select VPN Policies to display the VPN Policies screen.
Figure 6-37
3. Click VPN Status. The Current VPN Tunnels (SAs) screen displays:
Figure 6-38
4. Click Drop for the VPN tunnel that you want to deactivate.
Deleting a VPN Tunnel
To delete a VPN tunnel:
1. Log in to the modem router.
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2. On the main menu, select VPN Policies to display the VPN Policies screen. In the Policy
Table, select the radio button for the VPN tunnel to be deleted, and then click Delete.
Figure 6-39
Setting Up VPN Tunnels in Special Circumstances
When the VPN Wizard and its VPNC defaults (see Table 6-2 ) are not appropriate for your
circumstances, use one of these alternatives:
•
Auto Policy. For a typical automated Internet Key Exchange (IKE) setup, see “Using Auto
Policy to Configure VPN Tunnels” on page 6-32 . Auto Policy uses the IKE protocol to define
the authentication scheme and automatically generate the encryption keys.
• Manual Policy. For a manual keying setup in which you must specify each phase of the connection, see
“Using Manual Policy to Configure VPN Tunnels” on page 6-42
. Manual policy does not use IKE. Rather, you manually enter all the authentication and key parameters.
You have more control over the process; however, the process is more complex, and there are more opportunities for errors or configuration mismatches between your DG834Gv5 and the corresponding VPN endpoint gateway or client workstation.
Using Auto Policy to Configure VPN Tunnels
You need to configure matching VPN settings on both VPN endpoints. The outbound VPN settings on one end must match to the inbound VPN settings on other end, and vice versa.
See
“Example of Using Auto Policy” on page 6-37 for an example of using Auto Policy.
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Configuring VPN Network Connection Parameters
All VPN tunnels on the modem router requires that you configure several network parameters.
This section describes those parameters and how to access them.
The most common configuration scenarios will use IKE to manage the authentication and encryption keys. The IKE protocol performs negotiations between the two VPN endpoints to automatically generate and update the required encryption parameters.
Select VPN Policies on the main menu, and then click the Add Auto Policy button to display the
VPN - Auto Policy screen:
Figure 6-40
The DG834Gv5 VPN tunnel network connection fields are defined in the following table.
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Table 6-5. VPN-Auto Policy Screen Settings
Fields and Settings Description
General
Local LAN
The remote
VPN endpoint must have these
IP addresses entered as its remote addresses.
Policy Name
Remote VPN
Endpoint
Enter a unique name to identify this policy. This name is not supplied to the remote VPN endpoint. It is used only to help you manage the policies.
• The remote VPN endpoint must have this VPN gateway's address entered as its remote VPN endpoint.
• If the remote endpoint has a dynamic IP address, select Dynamic IP
address
. No address data input is required. You can set up multiple remote dynamic IP policies, but only one such policy can be enabled at a time. Otherwise, select an option (IP address or domain name) and enter the address of the remote VPN endpoint to which you want to connect.
IKE Keep-alive. • If you want to ensure that a connection is kept open, or, if that is not possible, that it is quickly re-established when disconnected, select this check box.
• The ping IP address must be associated with the remote endpoint.
The remote LAN address must be used. This IP address will be pinged periodically to generate traffic for the VPN tunnel. The remote keep-alive IP address must be covered by the remote LAN IP range and must correspond to a device that can respond to ping. The range should be made as narrow as possible to meet this objective.
Subnet Mask
Single/Start IP
Address
Finish IP
Address
Enter the desired network mask.
• Enter the IP address for a single address, or the starting address for an address range. A single address setting is used when you want to make a single server on your LAN available to remote users. A range must be an address range used on your LAN.
• Any. The remote VPN endpoint may be at any IP address.
For an address range, enter the finish IP address. This must be an address range used on your LAN.
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Table 6-5. VPN-Auto Policy Screen Settings (continued)
Fields and Settings Description
Remote LAN
The remote
VPN endpoint must have these
IP addresses entered as its
Local addresses.
IKE
IP Address
Single PC - no Subnet
. Select this option if there is no LAN (only a single PC) at the remote endpoint. If this option is selected, no additional data is required. The typical application is a PC running the
VPN client at the remote end.
Single/Start IP
Address
Finish IP
Address
Subnet Mask
Direction
• Enter an IP address that is on the remote LAN. You can use this setting when you want to access a server on the remote LAN.
• For a range of addresses, enter the starting IP address. This must be an address range used on the remote LAN.
• Any. Any outgoing traffic from the Local IP computers will trigger an attempted VPN connection to the remote VPN endpoint. Please be sure you want this option before selecting it.
Enter the finish IP address for a range of addresses. This must be an address range used on the remote LAN.
Enter the network mask.
Exchange Mode Ensure that the remote VPN endpoint is set to use Main Mode.
Diffie-Hellman
(DH) Group
The Diffie-Hellman algorithm is used when exchanging keys. The DH
Group setting determines the number of bit size used in the exchange.
This value must match the value used on the remote VPN gateway.
Local Identity
Type
This setting is used when determining if the IKE policy matches the current traffic. Select an option.
• Responder only. Incoming connections are allowed, but outgoing connections are blocked.
• Initiator and Responder. Both incoming and outgoing connections are allowed.
Local Identity
Data
Remote Identity
Type
Select an option to match the Remote Identity Type setting on the remote VPN endpoint.
• WAN IP Address
.
Your Internet IP address.
• Fully Qualified Domain Name. Your domain name.
• Fully Qualified User Name. Your name, e-mail address, or other ID.
Enter the data for the local identity type that you selected. (If WAN IP
Address
is selected, no input is required.)
Select the desired option to match the Local Identity Type setting on the remote VPN endpoint.
• IP Address. The Internet IP address of the remote VPN endpoint.
• Fully Qualified Domain Name. The domain name of the remote
VPN endpoint.
• Fully Qualified User Name. The name, E-mail address, or other ID of the remote VPN endpoint.
Remote Identity
Data
Enter the data for the remote identity type that you selected. If IP
Address
is selected, no input is required.
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Table 6-5. VPN-Auto Policy Screen Settings (continued)
Fields and Settings
Parameters Encryption
Algorithm
Authentication
Algorithm
Description
The encryption algorithm used for both IKE and IPSec. This setting must match the setting used on the remote VPN Gateway. DES and
3DES are supported.
• DES. The Data Encryption Standard (DES) processes input data that is 64 bits wide, encrypting these values using a 56-bit key. Faster but less secure than 3DES.
• 3DES. (Triple DES) achieves a higher level of security by encrypting the data three times using DES with three different, unrelated keys.
The authentication algorithm used for both IKE and IPSec. This setting must match the setting used on the remote VPN Gateway. Auto, MD5, and SHA-1 are supported. Auto negotiates with the remote VPN endpoint and is not available in responder-only mode.
• MD5. 128 bits, faster but less secure.
• SHA-1. (default)160 bits, slower but more secure. This is the default.
Pre-shared key The key must be entered both here and on the remote VPN Gateway.
SA Life Time This determines the time interval before the SA (Security Association) expires. (It will automatically be re-established as required.) While using a short time period (or data amount) increases security, it also degrades performance. It is common to use periods over an hour (3600 seconds) for the SA Life Time. This setting applies to both IKE and
IPSec SAs.
Enable IPSec
PFS (Perfect
Forward
Secrecy)
• If this check box is selected, security is enhanced by ensuring that the key is changed at regular intervals. Also, even if one key is broken, subsequent keys are no easier to break. (Each key has no relationship to the previous key.)
• This setting applies to both IKE and IPSec SAs. When configuring the remote endpoint to match this setting, you might have to specify the key group used. For this device, the key group is the same as the DH
Group setting in the IKE section.
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Example of Using Auto Policy
Wireless ADSL2+ Modem Router DG834G User Manual
Figure 6-41
To use Auto Policy:
1. Set the LAN IPs on each DG834Gv5 modem router to different subnets and configure each properly for the Internet. The following settings are assumed for this example:
Table 6-6. VPN Tunnel Configuration Worksheet
Connection Name:
Pre-Shared Key:
Secure Association -- Main Mode or Manual Keys:
Perfect Forward Secrecy -- Enabled or Disabled:
Encryption Protocol -- DES or 3DES:
Authentication Protocol -- MD5 or SHA-1:
Diffie-Hellman (DH) Group -- Group 1 or Group 2:
Key Life in seconds:
IKE Life Time in seconds:
GtoG
12345678
Main
Disabled
3DES
SHA-1
Group 2
28800
(8 hours)
3600
(1 hour)
VPN Endpoint Local IPSec ID LAN IP Address Subnet Mask
DG834Gv5 A LAN_A 192.168.0.1
255.255.255.0
DG834Gv5 B LAN_B 192.168.3.1
255.255.255.0
FQDN or Gateway IP
(WAN IP Address)
14.15.16.17
22.23.24.25
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2. On the main menu, select VPN Policies to display the VPN Policies screen:
Figure 6-42
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3. Click Add Auto Policy. The VPN Auto Policy screen displays:
Figure 6-43
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4. Enter these policy settings:
Auto Policy Field
General Policy Name
Remote VPN Endpoint
Address Type
Remote VPN Endpoint
Address Data
Local LAN
Remote LAN
IKE
Parameters
IP Address
Start IP Address
Subnet Mask
Direction
Exchange Mode
Diffie-Hellman (DH) Group
Local Identity Type
Remote Identity Type
Encryption Algorithm
Authentication Algorithm
Pre-shared Key
Setting
GtoG
Fixed
22.23.24.25
Use the default settings.
Select Subnet address from the drop-down list.
192.168.3.1
255.255.255.0
Initiator and Responder
Main Mode
Group 2 (1024 Bit)
Use the default setting.
Use the default setting.
3DES
MD5
12345678
5. Click Apply. The VPN Policies screen displays:
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6. Repeat these steps for the DG834Gv5 on LAN B. Pay special attention to the following network settings:
• General, Remote Address Data (for example, 14.15.16.17)
• Remote LAN, Start IP Address
– IP Address (for example, 192.168.0.1)
– Subnet Mask (for example, 255.255.255.0)
– Pre-shared Key (for example, 12345678)
7. Use the VPN Status screen to activate the VPN tunnel:
Note: The VPN Status screen is only one of three ways to active a VPN tunnel. See
“Activating a VPN Tunnel” on page 6-25
for information about the other ways.
a. From the main menu, select VPN Status to display the VPN Status/Log screen. Then click
VPN Status to display the Current VPN Tunnels (SAs) screen:
Figure 6-45
b. Click Connect for the VPN tunnel that you want to activate. Review the VPN Status/Log screen (
) to verify that the tunnel is connected.
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Using Manual Policy to Configure VPN Tunnels
As an alternative to IKE, you may use manual keying, in which you must specify each phase of the connection. A manual VPN policy requires all settings for the VPN tunnel to be manually input at each end (both VPN endpoints).
On the main menu, select VPN Policies, and then click the Add Manual Policy radio button to display the VPN - Manual Policy screen:
Figure 6-46
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T
he following table explains the fields in the VPN Manual Policy screen.
Table 6-7. VPN Manual Policy Fields and Settings
Fields and Settings
General
The DG834Gv5 VPN tunnel network connection fields.
Local LAN
The remote VPN endpoint must have these IP addresses entered as its remote addresses.
Policy Name
Remote VPN
Endpoint
Subnet Mask
Single PC - no
Subnet
Single/Start IP
Address
Finish IP
Address
Description
Enter a unique name to identify this policy. This name is not supplied to the remote VPN endpoint. It is used only to help you manage the policies.
• The remote VPN endpoint must have this VPN gateway's address entered as its remote VPN endpoint.
• If the remote endpoint has a dynamic IP address, select
Dynamic IP address
. No address data input is required.
You can set up multiple remote dynamic IP policies, but only one such policy can be enabled at a time. Otherwise, select an option (IP address or domain name) and enter the address of the remote VPN endpoint to which you want to connect.
Enter the network mask.
Select this option if there is no LAN (only a single PC) at the remote endpoint. If this option is selected, no additional data is required.
• Enter the IP address for a single address, or the starting address for an address range. A single address setting is used when you want to make a single server on your LAN available to remote users. A range must be an address range used on your LAN.
• Any. The remote VPN endpoint may be at any IP address.
For an address range, enter the finish IP address. This must be an address range used on your LAN.
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Table 6-7. VPN Manual Policy Fields and Settings (continued)
Fields and Settings
Remote LAN
The remote VPN endpoint must have these IP addresses entered as its Local addresses.
ESP Configuration
ESP (Encapsulating
Security Payload) provides security for the payload (data) sent through the VPN tunnel.
Authentication
IP Address
Single/Start IP
Address
Finish IP
Address
Subnet Mask
SPI
Encryption
Description
Single PC - no Subnet
. Select this option if there is no LAN
(only a single PC) at the remote endpoint. If this option is selected, no additional data is required. The typical application is a PC running the VPN client at the remote end.
• Enter an IP address that is on the remote LAN. You can use this setting when you want to access a server on the remote
LAN.
• For a range of addresses, enter the starting IP address. This must be an address range used on the remote LAN.
• Any. Any outgoing traffic from the Local IP computers will trigger an attempted VPN connection to the remote VPN endpoint. Please be sure you want this option before selecting it.
Enter the finish IP address for a range of addresses. This must be an address range used on the remote LAN.
Enter the network mask.
Enter the required Security Policy Indexes (SPIs). Each policy must have unique SPIs. These settings must match the remote VPN endpoint. The in setting here must match the out setting on the remote VPN endpoint, and the out setting here must match the in setting on the remote VPN endpoint.
Select an encryption algorithm, and enter the key in the field provided. For 3DES, the keys should be 24 ASCII characters and for DES, the keys should be 8 ASCII characters.
• DES. The Data Encryption Standard (DES) processes input data that is 64 bits wide, encrypting these values using a 56 bit key. Faster but less secure than 3DES.
• 3DES. (Triple DES) achieves a higher level of security by encrypting the data three times using DES with three different, unrelated keys.
Select the SHA-1 or MD5 authentication algorithm, and enter the key in the field provided. For MD5, the keys should be 16
ASCII characters. For SHA-1, the keys should be 20 ASCII characters.
• MD5. 128 bits, faster but less secure.
• SHA-1. (default)160 bits, slower but more secure.
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Chapter 7
Troubleshooting
This chapter gives information about troubleshooting your ADSL2+ Modem Wireless Router.
After each problem description, instructions are provided to help you diagnose and solve the problem. For the common problems listed, go to the section indicated.
• Is the router on?
• Have I connected the router correctly?
Go to “Basic Functioning” on page 7-1
.
• I can’t access the router’s configuration with my browser.
Go to “Troubleshooting Access to the Modem Router Main Menu” on page 7-2 .
• I’ve configured the router but I can’t access the Internet.
Go to “Troubleshooting the ISP Connection” on page 7-3
.
• I want to clear the configuration and start over again.
Go to “Restoring the Default Configuration and Password” on page 7-8
.
Basic Functioning
After you turn on power to the router, the following sequence of events should occur:
1. When power is first applied, verify that the Power LED is on.
2. After approximately 10 seconds, verify that:
a. The Power LED is still solid green. A red light indicates the unit has failed its power-on self-test (POST).
b. The Ethernet LAN port LEDs are lit for any local ports that are connected.
If a LAN port’s LED is lit, a link has been established to the connected device. If a LAN port is connected to a 100 Mbps device, verify that the port’s LED is green. If the port is
10 Mbps, the LED is amber.
c.
The DSL and Internet LEDs are lit.
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If any of these conditions does not occur, refer to the appropriate following section.
Power LED Is Not On
If the Power and other LEDs are off when your router is turned on:
• Make sure that the power cord is properly connected to your router and that the power supply adapter is properly connected to a functioning power outlet.
• Check that you are using the 12V DC power adapter supplied by NETGEAR for this product.
If the error persists, you have a hardware problem and should contact technical support.
Power LED Is Red
When the router is turned on, the modem router performs a power-on self-test. If the Power LED turns red, there is a fault within the router. Try to clear the fault as follows:
• Cycle the power to see if the router recovers.
• Clear the router’s configuration to factory defaults. This sets the router’s IP address to
192.168.0.1. This procedure is explained in “Restoring the Default Configuration and
.
If the error persists, you might have a hardware problem and should contact technical support.
LAN or DSL or Internet Port LEDs Are Not On
If these LEDs do not light when the Ethernet connection is made, check the following:
• Make sure that the Ethernet cable connections are secure at the router and at the hub or workstation.
• Make sure that power is turned on to the connected hub or workstation.
• Be sure that you are using the correct cable. When connecting the router’s WAN ADSL port, use the cable that was supplied with the DG834G v5.
Troubleshooting Access to the Modem Router Main Menu
If you are unable to access the modem router main menu from a computer on your local network, check the following:
• If you are using an Ethernet-connected computer, check the Ethernet connection between the computer and the router as described in the previous section.
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• Make sure your computer’s IP address is on the same subnet as the router. If you are using the recommended addressing scheme, your computer’s address should be in the range of
192.168.0.2 to 192.168.0.254. See the online document listed in
Network Access” in Appendix C to find your computer’s IP address.
Note: If your computer’s IP address is shown as 169.254.x.x:
Recent versions of Windows and MacOS generate and assign an IP address if the computer cannot reach a DHCP server. These auto-generated addresses are in the range of 169.254.x.x. If your IP address is in this range, check the connection from the computer to the router, and reboot your computer.
• If your router’s IP address was changed and you do not know the current IP address, clear the router’s configuration to factory defaults. This will set the router’s IP address to 192.168.0.1.
This procedure is explained in
“Restoring the Default Configuration and Password” on page 7-8
.
• Make sure that your browser has Java, JavaScript, or ActiveX enabled. If you are using
Internet Explorer, click Refresh to be sure that the Java applet is loaded.
• Try quitting the browser and launching it again.
• Make sure you are using the correct login information. The factory default login name is
admin, and the password is password. Make sure that Caps Lock is off when entering this information.
If the router does not save changes you have made in the Web configuration interface, check the following:
• When entering configuration settings, be sure to click the Apply button before moving to another screen or tab, or your changes are lost.
• Click the Refresh or Reload button in the Web browser. The changes might have occurred, but the Web browser might be caching the old configuration.
Troubleshooting the ISP Connection
ADSL Link
If your router is unable to access the Internet, you should first determine whether you have a DSL link with the service provider. The state of this connection is indicated with the DSL LED.
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ADSL Link
If your router is unable to access the Internet, you should first determine whether you have an
ADSL link with the service provider. The state of this connection is indicated with the DSL LED.
DSL LED Is Solid Green
If your DSL LED is solid green then you have a good ADSL connection. You can be confident that the service provider has connected your line correctly and that your wiring is correct.
DSL LED Is Blinking
If your DSL LED is blinking, then your modem router is attempting to make an ADSL connection with the service provider. The LED should turn solid green within a few minutes.
If the DSL LED does not turn solid green, disconnect all telephones on the line. If this solves the problem, reconnect the telephones one at a time, being careful to use a microfilter on each telephone. If the microfilters are connected correctly, you should be able to connect all your telephones.
If disconnecting telephones does not result in a solid green DSL LED, there may be a problem with your wiring. If the telephone company has tested the ADSL signal at your Network Interface
Device (NID), then you may have poor quality wiring in your house.
DSL LED Is Off
If the DSL LED is off, disconnect all telephones on the line. If this solves the problem, reconnect the telephones one at a time, being careful to use a microfilter on each telephone. If the microfilters are connected correctly, you should be able to connect all your telephones.
If disconnecting telephones does not result in a solid green DSL LED the problem may be one of the following:
• Check that the telephone company has made the connection to your line and tested it.
• Verify that you are connected to the correct telephone line. If you have more than one phone line, be sure that you are connected to the line with the ADSL service. It may be necessary to use a swapper if you ADSL signal is on pins 1 and 4 or the RJ-11 jack. The modem router uses pins 2 and 3.
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Obtaining a WAN IP Address
If your modem router is unable to access the Internet, and your Internet LED is green or blinking green, determine whether the modem router is able to obtain a WAN IP address from the ISP.
Unless you have been assigned a static IP address, your modem router must request an IP address from the ISP. You can determine whether the request was successful using the browser interface.
To check the WAN IP address from the browser interface:
1. Launch your browser, and select an external site such as www.netgear.com.
2. Access the modem router main menu at http://192.168.0.1.
3. Under the Maintenance heading, check that an IP address is shown for the WAN port.
If 0.0.0.0 is shown, your modem router has not obtained an IP address from your ISP.
If your router is unable to obtain an IP address from the ISP, the problem might be one of the following:
• Your ISP might require a multiplexing method or virtual path identifier or virtual channel identifier parameter.
Verify with your ISP the multiplexing method and parameter value, and update the router’s
ADSL settings accordingly.
• Your ISP might require a login program.
Ask your ISP whether they require PPP over Ethernet (PPPoE) or PPP over ATM (PPPOA) login.
• If you have selected a login program, the service name, user name, and password might be set
incorrectly. See “Troubleshooting PPPoE or PPPoA”
, below.
• Your ISP might check for your computer’s host name.
Assign the computer host name of your ISP account to the modem router in the browser-based
Setup Wizard.
• Your ISP only allows one Ethernet MAC address to connect to Internet, and might check for your computer’s MAC address. In this case try either of the following:
– Inform your ISP that you have bought a new network device, and ask them to use the router’s MAC address.
– Configure your router to spoof your computer’s MAC address. This can be done in the
Basic Settings screen.
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Troubleshooting PPPoE or PPPoA
The PPPoA or PPPoA connection can be debugged as follows:
1. Access the main menu of the router at http://192.168.0.1.
2. Under the Maintenance heading, select Router Status.
3. Click Connection Status.
4. If all of the steps indicate OK, then your PPPoE or PPPoA connection is up and working.
5. If any of the steps indicates Failed, you can attempt to reconnect by clicking Connect. The modem router will continue to attempt to connect indefinitely.
If you cannot connect after several minutes, the service name, user name, or password might be incorrect. There also might be a provisioning problem with your ISP.
Note: Unless you connect manually, the modem router will not authenticate using
PPPoE or PPPoA until data is transmitted to the network.
Troubleshooting Internet Browsing
If your modem router can obtain an IP address but your computer is unable to load any Web pages from the Internet:
• Your computer might not recognize any DNS server addresses.
A DNS server is a host on the Internet that translates Internet names (such as www addresses) to numeric IP addresses. Typically your ISP provides the addresses of one or two DNS servers for your use. If you entered a DNS address during the modem router’s configuration, reboot
your computer and verify the DNS address as described in “Preparing a Computer for
Network Access” in Appendix C . Alternatively, you can configure your computer manually
with DNS addresses, as explained in your operating system documentation.
• Your computer might not have the modem router configured as its TCP/IP modem router.
If your computer obtains its information from the modem router by DHCP, reboot the computer, and verify the modem router address as described in the link to the online document
“Preparing a Computer for Network Access” in Appendix C
.
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Troubleshooting a TCP/IP Network Using the Ping Utility
Most TCP/IP terminal devices and routers contain a ping utility that sends an echo request packet to the designated device. The device then responds with an echo reply. Troubleshooting a TCP/IP network is made very easy by using the ping utility in your computer.
Testing the LAN Path to Your Router
You can ping the router from your PC to verify that the LAN path to your router is set up correctly.
To ping the router from a PC running Windows 95 or later:
1. From the Windows toolbar, click the Start button, and select Run.
2. In the field provided, type ping followed by the IP address of the router, as in this example:
ping 192.168.0.1
3. Click OK.
You should see a message like this one:
Pinging <IP address> with 32 bytes of data
If the path is working, you see this message:
Reply from < IP address >: bytes=32 time=NN ms TTL=xxx
If the path is not working, you see this message:
Request timed out
If the path is not working correctly, you could have one of the following problems:
• Wrong physical connections
– Make sure that the LAN port LED is on. If the LED is off, follow the instructions in
“LAN or DSL or Internet Port LEDs Are Not On” on page 7-2 .
– Check that the corresponding Link LEDs are on for your network interface card and for the hub ports (if any) that are connected to your workstation and router.
• Wrong network configuration
– Verify that the Ethernet card driver software and TCP/IP software are both installed and configured on your PC or workstation.
– Verify that the IP address for your router and your workstation are correct and that the addresses are on the same subnet.
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Testing the Path from Your Computer to a Remote Device
After verifying that the LAN path works correctly, test the path from your PC to a remote device.
1. From the Windows toolbar, click the Start button, and select Run.
2. In the Windows Run window, type:
PING -n 10
IP address where IP address is the IP address of a remote device such as your ISP’s DNS server.
If the path is functioning correctly, replies as in the previous section are displayed. If you do not receive replies:
• Check that your PC has the IP address of your router listed as the default modem router. If the
IP configuration of your PC is assigned by DHCP, this information is not visible in your PC’s
Network Control Panel. Verify that the IP address of the router is listed as the default modem
router as described in the online document listed in “Preparing a Computer for Network
.
• Make sure that the network address of your PC (the portion of the IP address specified by the netmask) is different from the network address of the remote device.
• Check that your cable or DSL modem is connected and functioning.
• If your ISP assigned a host name to your PC, enter that host name as the account name in the
Basic Settings screen.
• Your ISP could be rejecting the Ethernet MAC addresses of all but one of your PCs. Many broadband ISPs restrict access by allowing only traffic from the MAC address of your broadband modem, but some ISPs additionally restrict access to the MAC address of a single
PC connected to that modem. If this is the case, you must configure your router to clone or spoof the MAC address from the authorized PC. See the Wireless ADSL2+ Modem Router
Setup Manual.
Restoring the Default Configuration and Password
This section explains how to restore the factory default configuration settings, changing the router’s administration password to password and the IP address to 192.168.0.1. You can erase the current configuration and restore factory defaults in two ways:
•
Use the Erase function (see “Backing Up, Restoring, or Erasing Your Settings” on page 4-1
).
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• Press both the Wireless button and WPS button on the side of the modem router for 5 seconds.
Use this method for cases when the administration password or IP address is not known.
Note: Pressing the reset button on the modem router reboots the unit but does not restore the factory default settings.
Problems with Date and Time
The E-mail screen in the Content Filtering section displays the current date and time of day. The
ADSL2+ Modem Wireless Router uses the Network Time Protocol (NTP) to obtain the current time from one of several network time servers on the Internet. Each entry in the log is stamped with the date and time of day. Problems with the date and time function can include the following:
• Date shown is January 1, 2000.
Cause: The router has not yet successfully reached a network time server. Check that your
Internet access settings are configured correctly. If you have just completed configuring the router, wait at least 5 minutes, and check the date and time again.
• Time is off by one hour.
Cause: The router does not automatically sense daylight savings time. On the E-mail screen, select or clear the Adjust for Daylight Savings Time check box.
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Appendix A
Technical Specifications
This appendix provides technical specifications for the 54 Mbps Wireless ADSL2+ Modem
Router Model DG834G.
Network Protocol and Standards Compatibility
Data and Routing Protocols: TCP/IP, RIP-1, RIP-2, DHCP, PPPoE, PPPoA, or PPTP, RFC 1483
Bridged or Routed Ethernet, and RFC 1577 Classical IP over ATM
Power Adapter
North America:
United Kingdom, Australia:
Europe:
Japan:
All regions (output):
Physical Specifications
Dimensions:
Weight:
120V AC, 60 Hz, input
240V AC, 50 Hz, input
230V AC, 50 Hz, input
100V AC, 50/60 Hz, input
12 V DC @ 1.0A output
6.9" x 4.7" x 1.1"
175 mm x 119 mm x 28 mm
0.7 lbs.
0.3 kg
Environmental Specifications
Operating temperature:
Operating humidity:
0
° to 40° C (32º to 104º F)
90% maximum relative humidity, noncondensing
Electromagnetic Emissions
Meets requirements of:
Interface Specifications
LAN:
WAN:
FCC Part 15 Class B; VCCI Class B; EN 55 022 (CISPR 22), Class B
10BASE-T or 100BASE-Tx, RJ-45
ADSL, ADSL2+, Dual RJ-11, pins 2 and 3,T1.413, G.DMT, G.Lite, ITU
Annex A (for the DG834G) or ITU Annex B (for the DG834GB)
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Appendix B
NETGEAR VPN Configuration
DG834G v5 to FVL328
This appendix is a case study on how to configure a secure IPSec VPN tunnel from a NETGEAR
DG834G v5 to a FVL328. This case study follows the VPN Consortium interoperability profile guidelines (found at
http://www.vpnc.org/InteropProfiles/Interop-01.html
).
Configuration Profile
The configuration in this document follows the addressing and configuration mechanics defined by the VPN Consortium. Gather all the necessary information before you begin the configuration process. Verify that the firmware is up to date, and that you have all the addresses that will be necessary, and all of the parameters that need to be set on both sides. Check that there are no firewall restrictions.
Table B-1. Profile Summary
VPN Consortium Scenario:
Type of VPN
Security scheme:
IP Addressing:
NETGEAR-Gateway A
NETGEAR-Gateway B
Scenario 1
LAN-to-LAN or Gateway-to-Gateway (not PC/Client-to-Gateway)
IKE with Preshared Secret/Key (not certificate-based)
Static IP address
Static IP address
NETGEAR VPN Configuration
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Wireless ADSL2+ Modem Router DG834G User Manual
Figure B-1
Note: Product updates are available on the NETGEAR website at
http://www.netgear.com.
Step-By-Step Configuration
1. Configure the DG834G v5 as in the gateway-to-gateway procedures using the VPN Wizard
(see
“Setting Up a Gateway-to-Gateway VPN Configuration” on page 6-18 ), being certain to
use appropriate network addresses for the environment.
The LAN addresses used in this example are as follows:
Unit
DG834G
FVL328
WAN IP
14.15.16.17
22.13.24.25
LAN IP
10.5.6.1
172.23.9.1
LAN Subnet Mask
255.255.255.0
255.255.255.0
a. Enter toFVL328 for the connection name.
b. Enter 22.23.24.25 for the remote WAN’s IP address.
c.
Enter the following:
• IP Address: 172.23.9.1
• Subnet Mask: 255.255.255.0
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toFVL328
10.5.6.1
172.23.9.1
Wireless ADSL2+ Modem Router DG834G User Manual
Click VPN Policies under the Advanced - VPN heading to display this screen.
toFVL328
22.23.24.25
5 6
172 23 9
Figure B-2
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2. Configure the FVL328 as in the gateway-to-gateway procedures for the VPN Wizard (see
“Setting Up a Gateway-to-Gateway VPN Configuration” on page 6-18 ), being certain to use
appropriate network addresses for the environment.
a. Enter toDG834 for the connection name
b. Enter 14.15.16.17 for the remote WAN’s IP address
c.
Enter the following:
• IP Address: 10.5.6.1
• Subnet Mask: 255.255.255.0 toDG834 toDG834 22.23.24.25
14.15.16.17
Select IKE Policies under the VPN heading to display the IKE Policy Configuration screen.
22.23.24.25
14.15.16.17
Figure B-3
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toDG834 172.23.9.1
10.5.6.1
Click VPN Policies under the
VPN heading to display this screen.
toDG834 toDG834
14.15.16.17
172 23 9 1
10 5 6
Figure B-4
3. Test the VPN tunnel by pinging the remote network from a PC attached to the DG834G v5.
a. Open the command prompt (Start > Run > cmd)
b. Type ping 172.23.9.1
Figure B-5
Note: The pings might fail the first time. If this happens, try the pings a second time.
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DG834G v5 with FQDN to FVL328
This section is a case study on how to configure a VPN tunnel from a NETGEAR DG834G v5 to a
FVL328 using a fully qualified domain name (FQDN) to resolve the public address of one or both routers. This case study follows the VPN Consortium interoperability profile guidelines (found at
http://www.vpnc.org/InteropProfiles/Interop-01.html
).
Configuration Profile
The configuration in this section follows the addressing and configuration mechanics defined by the VPN Consortium. Gather all the necessary information before you begin the configuration process. Verify that the firmware is up to date, and that you have all the addresses that will be necessary, and all of the parameters that need to be set on both sides. Check that there are no firewall restrictions.
Table B-2. Profile Summary
VPN Consortium Scenario:
Type of VPN
Security Scheme:
IP Addressing:
NETGEAR-Gateway A
NETGEAR-Gateway B
Scenario 1
LAN-to-LAN or Gateway-to-Gateway (not PC/Client-to-Gateway)
IKE with Preshared Secret/Key (not Certificate-based)
Fully Qualified Domain Name (FQDN)
FDQN
Figure B-6
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Note: Product updates are available on the NETGEAR website at
http://www.netgear.com
.
Using a Fully Qualified Domain Name (FQDN)
Many ISPs (Internet Service Providers) provide connectivity to their customers using dynamic instead of static IP addressing. This means that a user’s IP address does not remain constant over time, which presents a challenge for gateways attempting to establish VPN connectivity.
A Dynamic DNS (DDNS) service allows a user whose public IP address is dynamically assigned to be located by a host or domain name. It provides a central public database where information
(such as e-mail addresses, host names, and IP addresses) can be stored and retrieved. Now, a gateway can be configured to use a third-party service in lieu of a permanent and unchanging IP address to establish bi-directional VPN connectivity.
To use DDNS, you must register with a DDNS service provider. Some DDNS service providers include:
• DynDNS: www.dyndns.org
• TZO.com: netgear.tzo.com
• ngDDNS: ngddns.iego.net
In this example, Gateway A is configured using an example FQDN provided by a DDNS Service provider. In this case we established the hostname dg834g.dyndns.org for Gateway A using the
DynDNS service. Gateway B uses the DDNS service provider when establishing a VPN tunnel.
To establish VPN connectivity, Gateway A must be configured to use Dynamic DNS, and
Gateway B must be configured to use a DNS host name provided by a DDNS service provider to find Gateway A. Again, the following step-by-step procedures assume that you have already registered with a DDNS service provider and have the configuration information necessary to set up the gateways.
Step-By-Step Configuration
1. Log in to the DG834G v5 labeled Gateway A as in the illustration.
Out of the box, the DG834G v5 is set for its default LAN address of http://192.168.0.1 with its default user name of admin, and default password of password. This example assumes that you have set the local LAN address as 10.5.6.1 for Gateway A and have set your own password.
2. On the DG834G v5, configure the Dynamic DNS settings.
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a. Under the Advanced Heading, select Dyanmic DNS to display the Dynamic DNS Setup screen:
Figure B-7
b. Configure this screen with appropriate account and hostname settings and then click
Apply.
• Select the Use a Dynamic DNS Service check box.
• In the Host Name field type dg834g.dyndns.org.
• In the User Name field enter the account user name.
• In the Password field enter the account password.
c.
Click Show Status. The resulting screen should show Update OK: good:
Figure B-8
3. On the FVL328, configure the Dynamic DNS settings. Assume a correctly configured
DynDNS account.
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a. From the main menu, select Dynamic DNS to display the Dynamic DNS Setup screen:
Figure B-9
b. Select the DynDNS.org radio button. The Dynamic DNS screen displays:
Figure B-10 c.
Configure the appropriate account and host name settings, and then click Apply.
• In the Host and Domain Name field enter fvl328.dyndns.org.
• In the User Name field enter the account user name.
• In the Password field enter the account password.
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d. Click Show Status. The resulting screen should show Update OK: good:
Figure B-11
4. Configure the DG834G v5 as in the gateway-to-gateway procedures using the VPN Wizard
(see
“Setting Up a Gateway-to-Gateway VPN Configuration” on page 6-18 ), being certain to
use appropriate network addresses for the environment.
The LAN addresses used in this example are as follows:1
Device
DG834G v5
FVL328
LAN IP Address LAN Subnet Mask
10.5.6.1
172.23.6.1
255.255.255.0
255.255.255.0
a. Enter toFVL328 for the connection name.
b. Enter fvl328.dyndns.org for the remote WAN's IP address.
c.
Enter the following:
• IP Address: 172.23.9.1
• Subnet Mask: 255.255.255.0
5. Configure the FVL328 as in the gateway-to-gateway procedures for the VPN Wizard (see
“Setting Up a Gateway-to-Gateway VPN Configuration” on page 6-18 ), being certain to use
appropriate network addresses for the environment.
a. Enter toDG834 for the Connection Name.
b. Enter dg834g.dyndns.org for the remote WAN's IP address.
c.
Enter the following:
• IP Address: 10.5.6.1
• Subnet Mask: 255.255.255.0
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6. Test the VPN tunnel by pinging the remote network from a PC attached to the DG834G v5.
a. Open the command prompt (Start -> Run -> cmd)
b. Type ping 172.23.9.1
Figure B-12
Note: The pings might fail the first time. If this happens, try the pings a second time.
Configuration Summary (Telecommuter Example)
The configuration in this section follows the addressing and configuration mechanics defined by the VPN Consortium. Gather all the necessary information before you begin the configuration process. Verify whether the firmware is up to date, all of the addresses that will be necessary, and all of the parameters that need to be set on both sides. Assure that there are no firewall restrictions.
Table B-3. Configuration Summary (Telecommuter Example)
VPN Consortium Scenario:
Type of VPN:
Security Scheme:
IP Addressing:
Scenario 1
PC/client-to-gateway, with client behind NAT router
IKE with Pre-shared Secret/Key (not certificate-based)
Gateway Fully Qualified Domain Name (FQDN)
Client Dynamic
NETGEAR VPN Configuration B-11
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Figure B-13
Setting Up the Client-to-Gateway VPN Configuration
(Telecommuter Example)
Setting up a VPN between a remote PC running the NETGEAR ProSafe VPN Client and a network gateway involves two steps:
•
Step 1: Configuring the Client-to-Gateway VPN Tunnel on the VPN Router at the Employer’s
•
Step 2: Configuring the NETGEAR ProSafe VPN Client on the Remote PC at the
Telecommuter’s Home Office configures the NETGEAR ProSafe VPN Client endpoint.
Step 1: Configuring the Client-to-Gateway VPN Tunnel on the
VPN Router at the Employer’s Main Office
Follow this procedure to configure a client-to-gateway VPN tunnel by filling out the VPN Auto
Policy screen.
1. Log in to the VPN router at its LAN address of http://192.168.0.1 with its default user name of
admin, and password of password. Select VPN Policies to display the VPN Policies screen.
Click Add Auto Policy to proceed and enter the information.
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Figure B-14
NETGEAR VPN Configuration
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fromDG834G
(in the example)
Dynamic IP address
IKE Keep Alive
is optional; must match
Remote LAN IP Address
when enabled
(remote PC must respond to pings)
Subnet address
192.168.0.1
(in this example)
255.255.255.0
Single address
192.168.2.3
(in this example)
(Remote NAT router must have
Address Reservation
set and
VPN Passthrough
enabled)
Main Mode
Fully Qualified Domain Name fromDG834G.com
(in this example)
Fully Qualified Domain Name toDG834G.com
(in this example)
3DES
12345678
(in this example)
3600
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2. Click Apply when you are finished to display the VPN Policies screen.
Figure B-15
To view or modify the tunnel settings, select the radio button next to the tunnel entry, and then click Edit.
Step 2: Configuring the NETGEAR ProSafe VPN Client on the
Remote PC at the Telecommuter’s Home Office
This procedure describes how to configure the ADSL2+ Modem Wireless Router. This procedure assumes that the PC running the client has a dynamically assigned IP address.
The PC must have a VPN client program installed that supports IPSec (in this case study, the
NETGEAR VPN ProSafe Client is used). Go to the NETGEAR website (
http://www.netgear.com
) for information about how to purchase the NETGEAR ProSafe VPN Client.
Note: Before installing the ADSL2+ Modem Wireless Router software, be sure to turn off any virus protection or firewall software you might be running on your PC.
1. Install the NETGEA ProSafe VPN Client on the remote PC, and then reboot.
a. You might need to insert your Windows CD to complete the installation.
b. If you do not have a modem or dial-up adapter installed in your PC, you might see the warning message stating “The NETGEAR ProSafe VPN Component requires at least one dial-up adapter be installed.” You can disregard this message.
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c.
Install the IPSec component. You might have the option to install either the VPN adapter or the IPSec component or both. The VPN adapter is not necessary.
d. The system should show the ProSafe icon ( ) in the system tray after rebooting.
e.
Double-click the system tray icon to open the Security Policy Editor.
2. Add a new connection.
a. Run the NETGEAR ProSafe Security Policy Editor program, and create a VPN
Connection.
b. From the Edit menu of the Security Policy Editor, click Add, and then click Connection.
A New Connection listing appears in the list of policies. Rename the new connection so that it matches the connection name that you entered in the VPN settings of the DG834G v5 on Gateway A.
Note: In this example, the connection name used on the client side of the VPN tunnel is toDG834G and it does not have to match the VPN_client connection name used on the gateway side of the VPN tunnel (see
) because connection names are irrelevant to how the VPN tunnel functions.
Tip: Choose connection names that make sense to the people using and administrating the VPN.
Figure B-16
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Wireless ADSL2+ Modem Router DG834G User Manual
Figure B-17 c.
Select Secure in the Connection Security check-box group.
d. Select IP Subnet in the ID Type drop-down list.
e.
In this example, type 192.168.0.1 in the Subnet field as the network address of the
DG834G v5.
f.
Enter 255.255.255.0 in the Mask field as the LAN Subnet Mask of the DG834G v5.
g. Select All in the Protocol drop-down list to allow all traffic through the VPN tunnel.
h. Select the Connect using Secure Gateway Tunnel check box.
i.
Select Domain Name in the ID Type drop-down list, and enter fromDG834G.com (in this example).
j.
Select Gateway Hostname and enter ntgr.dyndns.org (in this example).
k. The resulting connection settings are shown in
3. Configure the Security Policy in the ADSL2+ Modem Wireless Router software.
a. In the Network Security Policy list, expand the new connection by double-clicking its name or clicking on the + symbol. My Identity and Security Policy appear below the connection name.
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b. Click Security Policy to show the Security Policy menu.
Figure B-18 c.
Select the Main Mode radio button in the Select Phase 1 Negotiation Mode group.
4. Configure the VPN client identity.
In this step, you provide information about the remote VPN client PC. You must provide the pre-shared key that you configured in the DG834G v5 and either a fixed IP address or a fixed virtual IP address of the VPN client PC.
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a. In the Network Security Policy list on the left side of the Security Policy Editor window, click My Identity.
Figure B-19
b. Select None in the Select Certificate drop-down list.
c.
Select Domain Name in the ID Type drop down list, and then enter toDG834G.com (in this example). Select Disabled in the Virtual Adapter drop-down list.
d. In the Internet Interface section, select Intel PRO/100VE Network Connection (in this example, your Ethernet adapter might be different) in the Name field, and then enter
192.168.2.3 (in this example) in the IP Addr field.
e.
Click the Pre-Shared Key button.
B-18
Figure B-20 f.
In the Pre-Shared Key screen, click Enter Key. Enter the DG834G v5’s pre-shared key and click OK. In this example, 12345678 is entered. This field is case-sensitive.
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5. Configure the VPN Client Authentication Proposal.
In this step, you will provide the type of encryption (DES or 3DES) to be used for this connection. This selection must match your selection in the VPN router configuration.
a. In the Network Security Policy list on the left side of the Security Policy Editor window, expand the Security Policy heading by double-clicking its name or clicking the + symbol.
b. Expand the Authentication subheading by double clicking its name or clicking the + symbol. Then select Proposal 1 below Authentication.
Figure B-21 c.
In the Authentication Method field, select Pre-Shared Key.
d. In the Encrypt Alg drop-down list, select the type of encryption. In this example, use
Triple DES.
e.
In the Hash Alg drop-down list, select SHA-1.
f.
In the SA Life drop-down list, select Unspecified.
g. In the Key Group drop-down list, select Diffie-Hellman Group 2.
6. Configure the VPN Client Key Exchange Proposal.
In this step, you provide the type of encryption (DES or 3DES) to be used for this connection.
This selection must match your selection in the VPN router configuration.
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a. Expand the Key Exchange subheading by double clicking its name or clicking the + symbol. Then select Proposal 1 below Key Exchange.
Figure B-22
b. In the SA Life drop-down list, select Unspecified.
c.
In the Compression drop-down list, select None.
d. Select the Encapsulation Protocol (ESP) check box.
e.
In the Encrypt Alg drop-down list, select the type of encryption. In this example, use
Triple DES.
f.
In the Hash Alg drop-down list, select SHA-1.
g. In the Encapsulation drop-down list, select Tunnel.
h. Leave the Authentication Protocol (AH) check box cleared.
7. Save the VPN Client settings.
From the File menu at the top of the Security Policy Editor window, select Save.
After you have configured and saved the VPN client information, your PC automatically opens the VPN connection when you attempt to access any IP addresses in the range of the remote VPN router’s LAN.
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Wireless ADSL2+ Modem Router DG834G User Manual
8. Check the VPN connection.
To check the VPN Connection, you can initiate a request from the remote PC to the VPN router’s network by using the Connect option in the modem router menu (see
Since the remote PC has a dynamically assigned WAN IP address, it must initiate the request.
a. Right-click the system tray icon to open the popup menu.
b. Select Connect to open the My Connections list.
c.
Select toDG834G.
The modem router reports the results of the attempt to connect. Once the connection is established, you can access resources of the network connected to the VPN router.
Right-mouse-click the system tray icon to open the pop up menu.
Figure B-23
To perform a ping test using this example, start from the remote PC:
a. Establish an Internet connection from the PC.
b. On the Windows taskbar, click the Start button, and then click Run.
c.
Type ping -t 192.168.0.1, and then click OK.
Figure B-24
NETGEAR VPN Configuration
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Wireless ADSL2+ Modem Router DG834G User Manual
This causes a continuous ping to be sent to the VPN router. Within two minutes, the ping response should change from timed out to reply.
Figure B-25
Once the connection is established, you can open the browser on the PC and enter the LAN IP address of the VPN router. After a short wait, you should see the login screen of the VPN router
(unless another PC already has the VPN router management interface open).
Note: You can use the VPN router diagnostics to test the VPN connection from the VPN router to the client PC. To do this, select Diagnostics on the modem router main menu.
Monitoring the VPN Tunnel (Telecommuter Example)
Viewing the PC Client’s Connection Monitor and Log Viewer
To view information on the progress and status of the VPN client connection, open the Log
Viewer.
1. To launch this function, click the Windows Start button, then select Programs > 54 Mbps
Wireless ADSL2+ Modem Router Model DG834G > Log Viewer.
Note: Use the active VPN tunnel information and pings to determine whether a failed connection is due to the VPN tunnel or some reason outside the VPN tunnel.
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Wireless ADSL2+ Modem Router DG834G User Manual
2. The Connection Monitor screen displays:
Figure B-26
While the connection is being established, the Connection Name listed in this screen shows SA before the name of the connection. When the connection is successful, the SA changes to the yellow key symbol.
Note: While your PC is connected to a remote LAN through a VPN, you might not have normal Internet access. If this is the case, you will need to close the VPN connection to have normal Internet access.
Viewing the VPN Router’s VPN Status and Log Information
To view information about the status of the VPN client connection, open the VPN router’s VPN
Status screen by following these steps:
NETGEAR VPN Configuration
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Wireless ADSL2+ Modem Router DG834G User Manual
1. On the modem router main menu, select Router Status, and then click the VPN Status button.
The VPN Status/Log screen for a connection is shown below:
Figure B-27
2. To view the VPN tunnels status, click VPN Status.
Figure B-28
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NETGEAR VPN Configuration
Appendix C
Related Documents
This appendix provides links to reference documents you can use to gain a more complete understanding of the technologies used in your NETGEAR product.
Document Link
Internet Networking and TCP/IP
Addressing
Wireless Communications
Preparing a Computer for
Network Access
Virtual Private Networking (VPN)
Glossary http://documentation.netgear.com/reference/enu/tcpip/index.htm
http://documentation.netgear.com/reference/enu/wireless/index.htm
http://documentation.netgear.com/reference/enu/wsdhcp/index.htm
http://documentation.netgear.com/reference/enu/vpn/index.htm
http://documentation.netgear.com/reference/enu/glossary/index.htm
Related Documents
v1.0, May 2008
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Wireless ADSL2+ Modem Router DG834G User Manual
C-2
v1.0, May 2008
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