NETGEAR DG834N User Manual

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DG834N RangeMax NEXT Wireless ADSL2+ Modem Router Reference Manual

NETGEAR, Inc.

350 East Plumeria Drive San Jose, CA 95134 USA

202-10197-03 October 2008 v1.0

Trademarks

NETGEAR, the NETGEAR logo, and RangeMax are trademarks or registered trademarks of NETGEAR, Inc. in the United States and/or other countries. Microsoft, Windows, and Windows NT are registered trademarks and Vista is a trademark of Microsoft Corporation. Other brand and product names are trademarks or registered 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.

Federal Communications Commission (FCC) Compliance Notice: Radio Frequency Notice

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 or more 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.

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]

Dansk [Danish]

Deutsch [German]

Eesti [Estonian]

English

Español [Spanish]

Ελληνική [Greek]

NETGEAR, Inc. tímto prohlašuje, že tento DG834N RangeMax

ADSL2+ Modem Router je ve shodì se základními požadavky a dalšími pøíslušnými ustanoveními smìrnice 1999/5/ES.

Undertegnede NETGEAR, Inc. erklærer herved, at følgende udstyr DG834N

RangeMax

øvrige relevante krav i direktiv 1999/5/EF.

Hiermit erklärt NETGEAR, Inc., dass sich das Gerät DG834N RangeMaxTM NEXT Wireless ADSL2+ Modem Router in Übereinstimmung mit den grundlegenden Anforderungen und den übrigen einschlägigen Bestimmungen der Richtlinie 1999/5/EG befindet.

Käesolevaga kinnitab NETGEAR, Inc. seadme DG834N RangeMaxTM NEXT Wireless ADSL2+ Modem Router vastavust direktiivi 1999/5/EÜ põhinõuetele ja nimetatud direktiivist tulenevatele teistele asjakohastele sätetele.

Hereby, NETGEAR, Inc., declares that this DG834N RangeMaxTM NEXT Wireless ADSL2+ Modem Router is in compliance with the essential requirements and other relevant provisions of Directive 1999/5/EC.

Por medio de la presente NETGEAR, Inc. declara que el DG834N RangeMaxTM NEXT Wireless ADSL2+ Modem Router cumple con los requisitos esenciales y cualesquiera otras disposiciones aplicables o exigibles de la Directiva 1999/5/CE.

ΜΕ ΤΗΝ ΠΑΡΟΥΣΑ NETGEAR, Inc. ∆ΗΛΩΝΕΙ ΟΤΙ DG834N RangeMaxTM NEXT Wireless ADSL2+ Modem Router ΣΥΜΜΟΡΦΩΝΕΤΑΙ ΠΡΟΣ ΤΙΣ ΟΥΣΙΩ∆ΕΙΣ ΑΠΑΙΤΗΣΕΙΣ ΚΑΙ ΤΙΣ ΛΟΙΠΕΣ ΣΧΕΤΙΚΕΣ ∆ΙΑΤΑΞΕΙΣ ΤΗΣ Ο∆ΗΓΙΑΣ 1999/5/ΕΚ.

NEXT Wireless ADSL2+ Modem Router overholder de væsentlige krav og

NEXT Wireless

Français [French]

Italiano [Italian]

Latviski [Latvian]

Lietuviø [Lithuanian]

Par la présente NETGEAR, Inc. déclare que l'appareil DG834N RangeMaxTM NEXT Wireless ADSL2+ Modem Router est conforme aux exigences essentielles et aux autres dispositions pertinentes de la directive 1999/5/CE.

Con la presente NETGEAR, Inc. dichiara che questo DG834N RangeMaxTM NEXT Wireless ADSL2+ Modem Router è conforme ai requisiti essenziali ed alle altre disposizioni pertinenti stabilite dalla direttiva 1999/5/CE.

Ar šo NETGEAR, Inc. deklarç, ka DG834N RangeMaxTM NEXT Wireless ADSL2+ Modem Router atbilst Direktîvas 1999/5/EK bûtiskajâm prasîbâm un citiem ar to saistîtajiem noteikumiem.

Šiuo NETGEAR, Inc. deklaruoja, kad šis DG834N RangeMaxTM NEXT Wireless ADSL2+ Modem Router atitinka esminius reikalavimus ir kitas 1999/5/EB Direktyvos nuostatas.

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Nederlands [Dutch]

Hierbij verklaart NETGEAR, Inc. dat het toestel DG834N RangeMaxTM NEXT Wireless ADSL2+ Modem Router in overeenstemming is met de essentiële eisen en de andere relevante bepalingen van richtlijn 1999/5/EG.

Malti [Maltese]

Magyar [Hungarian]

Polski [Polish]

Português [Portuguese]

Slovensko [Slovenian]

Slovensky [Slovak]

Suomi [Finnish]

Hawnhekk, NETGEAR, Inc., jiddikjara li dan DG834N RangeMaxTM NEXT Wireless ADSL2+ Modem Router jikkonforma mal-tiijiet essenzjali u ma provvedimenti orajn relevanti li hemm fid-Dirrettiva 1999/5/EC.

Alulírott, NETGEAR, Inc. nyilatkozom, hogy a DG834N RangeMaxTM NEXT Wireless ADSL2+ Modem Router megfelel a vonatkozó alapvetõ követelményeknek és az 1999/5/ EC irányelv egyéb elõírásainak.

Niniejszym NETGEAR, Inc. oœwiadcza, ¿e DG834N RangeMaxTM NEXT Wireless ADSL2+ Modem Router jest zgodny z zasadniczymi wymogami oraz pozosta³ymi stosownymi postanowieniami Dyrektywy 1999/5/EC.

NETGEAR, Inc. declara que este DG834N RangeMax

NEXT Wireless ADSL2+ Modem Router está conforme com os requisitos essenciais e outras disposições da Directiva 1999/5/CE.

NETGEAR, Inc. izjavlja, da je ta DG834N RangeMax

NEXT Wireless ADSL2+ Modem Router v skladu z bistvenimi zahtevami in ostalimi relevantnimi doloèili direktive 1999/5/ ES.

NETGEAR, Inc. týmto vyhlasuje, že DG834N RangeMax

NEXT Wireless ADSL2+ Modem Router spåòa základné požiadavky a všetky príslušné ustanovenia Smernice 1999/5/ES.

NETGEAR, Inc. vakuuttaa täten että DG834N RangeMax

NEXT Wireless ADSL2+ Modem Router tyyppinen laite on direktiivin 1999/5/EY oleellisten vaatimusten ja sitä koskevien direktiivin muiden ehtojen mukainen.

Svenska [Swedish]

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 DG834N product package.

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Bestätigung des Herstellers/Importeurs

Es wird hiermit bestätigt, daß das DG834N RangeMaxTM NEXT Wireless ADSL2+ Modem Router 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.

Certificate of the Manufacturer/Importer

It is hereby certified that the DG834N RangeMaxTM NEXT Wireless ADSL2+ Modem Router 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 DG834N RangeMaxTM NEXT Wireless ADSL2+ Modem Router.

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

are required.

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Product and Publication Details

Model Number: DG834N Publication Date: October 2008 Product Family: Wireless Modem Router Product Name: DG834N RangeMaxTM NEXT Wireless ADSL2+ Modem Router Home or Business Product: Home Language: English Publication Part Number: 202-10197-03 Publication Version Number: 1.0

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About This Manual

The ETGEAR® DG834 RangeMax EXT Wireless ADSL2+ Modem Router Reference Manual describes how to install, configure, operate, and troubleshoot the DG834N RangeMaxTM NEXT Wireless ADSL2+ Modem Router using its included software. This book describes the software configuration procedures and explains the options available within those procedures.

Who Should Use This Book

The information in this manual is intended for readers with intermediate to advanced system management skills.

This document was created primarily for the system administrator who wishes to install and configure the RangeMax NEXT Wireless ADSL2+ Modem Router in a network. It assumes that the reader has a general understanding of switch platforms and a basic knowledge of Ethernet and networking concepts. To install this modem router, it is not necessary to understand and use all of its capabilities. Once basic configuration is performed, it will function in a network using its remaining factory default settings. However, a greater level of configuration—anywhere from the basic up to the maximum possible—will allow your network the full benefit of the switch’s features. The Web interface simplifies this configuration at all levels.

How to Use This Book

This document describes configuration menu commands for the RangeMax NEXT Wireless ADSL2+ Modem Router software. The commands can all be accessed from the Web interface.

• Chapter 1, “Connecting Your Router to the Internet,” describes how to use the Smart Wizard Discovery utility to set up your switch so that you can communicate with it.

• Chapter 2, “Configuring Your Wireless Network and Security Settings,” describes how to configure the wireless features.

• Chapter 3, “Protecting Your Network,” describes how to configure the basic firewall features.

• Chapter 4, “Managing Your Network,” describes how describes how to perform network management tasks.

• Chapter 5, “Advanced Configuration,” describes how to configure advanced features.

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• Chapter 6, “Troubleshooting,” describes how to troubleshoot your modem router.

• Appendix B, “Technical Specifications,” gives RangeMax NEXT Wireless ADSL2+ Modem Router specifications, lists default feature values, and provides information about features that are supported but are not user-configurable.

• Appendix A, “Related Documents,” provides links to reference documents.

ote: See the product release notes for the RangeMax NEXT Wireless ADSL2+ Modem

Router Software application level code. The release notes detail the platform-specific functionality of the Switching, SNMP, Config, and Management packages.

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:

Italics Emphasis, books

Bold User input, IP addresses, GUI screen text

Fixed Command prompt, CLI text, code

Italics URL links

• Formats. This manual uses the following formats to highlight special messages:

ote: 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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Danger: This is a safety warning. Failure to take heed of this notice might result in

personal injury or death.

• Scope. This manual is written for the RangeMax NEXT Wireless ADSL2+ Modem Router according to these specifications:

Product Version DG834N RangeMaxTM NEXT Wireless ADSL2+ Modem Router

Manual Publication Date October 2008

ote: Product updates are available on the NETGEAR, Inc. website at

http://www.netgear.com/support.

How to Use This Manual

The HTML version of this manual includes the following:

• Buttons, and , for browsing forwards or backwards through the manual one page at a time

• 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 button to access the full NETGEAR, Inc. online knowledge base for the product model.

• Links to PDF versions of the full manual and individual chapters.

How to Print this Manual

To print this manual, choose one of the following options:

• Printing a page from HTML. Each page in the HTML version of the manual is dedicated to a major topic. Select File > Print from the browser menu to print the page contents.

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• Printing from PDF. Your computer must have the free Adobe Acrobat Reader installed in order for you to view and print PDF files. The Acrobat Reader is available on the Adobe website at http://www.adobe.com.

– Printing a PDF chapter.

• 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.

• Click the print icon in the upper left of your browser window.

– Printing a PDF version of the Complete Manual.

• 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 your browser window. Printing the Full

Manual.

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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Revision History

Part Number

202-10197-01 1.0 May 2006 Product created

202-10197-02 1.0 October 2008 Screen shots updated, procedures updated, document

Version Number

Date Description

elements updated, and the following features added or updated:

• Multi SSID. See the “Wireless LAN” section in Table 2-1 in

Chapter 2, “Configuring Your Wireless Network and Security Settings.”

• Wireless Access Point Control. See the “Wireless Access

Point Control” section in Table 2-1 in Chapter 2, “Configuring Your Wireless Network and Security Settings.”

• Automatic Daylight Savings Time Adjustment. See “How

to Set Your Time Zone” in Chapter 3.

• Automatic Firmware Recovery. See “Automatic Firmware

Recovery” in Chapter 4.

• Remote management from up to ten IP addresses. See

“Configuring Remote Management” in Chapter 4.

• Internet Group Management Protocol version 2 (IGMP2). See “Internet Group Management Protocol Version 2” in

Appendix B.

• ITU G.992.5 Annex M standard. See “ITU G.992.5 Annex

M” in Appendix B.

• Link Layer Topology Discovery (LLTD). See “Link Layer

Topology Discovery” in Appendix B.

• Wi-Fi Certified 802.11n Draft 2.0. See “Wi-Fi Certified

802.11n Draft 2.0 by the Wi-Fi Alliance” in Appendix B.

• Wi-Fi Multimedia Power Save (WMM-PS). See “Wi-Fi

Multimedia Power Save” in Appendix B.

• Wireless Multimedia Support Quality of Service (WMM QoS). See “Wireless Multimedia Support Quality of

Service” in Appendix B.

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Chapter 1

Connecting Your Router to the Internet

This chapter describes how to configure your DG834N RangeMaxTM NEXT Wireless ADSL2+ Modem Router Internet connection.When you perform the initial configuration of your modem router using the DG834 ADSL2+ Modem Wireless Router Resource CD as described in the ETGEAR 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.

ote: NETGEAR recommends using the Smart Wizard on the DG834 ADSL2+ Modem

Wireless Router Resource CD for initial configuration, as described in the ETGEAR Router Setup Manual.

This chapter includes:

• “Using the Setup Manual” on this page

• “What You Need before You Begin” on page 1-2

• “Logging In to the Wireless Modem Router” on page 1-2

• “Auto-detecting Your Internet Connection” on page 1-5

• “Viewing or Manually Configuring Your ISP Settings” on page 1-6

• “ADSL Settings” on page 1-11

• “How the Internet Connection Works” on page 1-12

Using the Setup Manual

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 DG834 ADSL2+ Modem Wireless Router 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.

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For installation instructions in a language other than English, see the language options on the DG834 ADSL2+ Modem Wireless Router Resource CD Resource CD.

What You Need before You Begin

You need to prepare the following before you can set up your firewall:

• 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

• 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 ETGEAR Router Setup Manual

In addition, 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 that you can access from “Preparing Your

Network” in Appendix A.

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.

Logging In to the Wireless Modem Router

You can log in to the modem router to view or change its settings.

ote: 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 that you can access from “Preparing Your Network” in Appendix A.

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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

A login window similar to the following opens:

Figure 1-2

2. Enter admin for the user name and password for the password, both in lower case letters.

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3. Select Setup Wizard to go to the Setup Wizard screen:

Figure 1-3

This screen includes the following:

• 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.

• Auto-Detect Connection Type. If you want to change the settings for the Internet

connection, select Yes or o, and then click ext.

– Yes. Let the modem router Setup Wizard auto-detect the type of Internet connection

that you have and configure it. See the next section, “Auto-detecting Your Internet

Connection.

– o, I want to Configure the Router Myself. Enter your Internet settings manually in

the Basic Settings screen. See “Understanding the Basic Settings Screen” on page 1-8.

In either case, use the configuration settings that your ISP provided to assure that the configuration for your Internet connection is correct.

• Test. To test your Internet connection, click Test. If the NETGEAR website does not

appear within 1 minute, see Chapter 6, “Troubleshooting.

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Auto-detecting Your Internet Connection

The Smart Setup Wizard searches your Internet connection for servers and protocols to determine your ISP configuration.

ote: The wizard cannot detect a PPTP connection with your ISP. If your ISP uses this

protocol, then you must configure your connection manually (see “Understanding

the Basic Settings Screen” on page 1-8).

To use the Smart Setup Wizard to assist with configuration or to view the Internet connection settings:

1. From the Setup Wizard screen, select Yes for the Auto-Detect Connection Type, and then click ext 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 ISP Information

PPP over Ethernet (PPPoE) PPP over ATM (PPPoA)

Dynamic IP Account Setup No entries needed.

IP over ATM Classical IP assignment (RFC1577)

Connecting Your Router to the Internet 1-5

Enter the login user name and password. These fields are casesensitive.

• 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.

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Table 1-1. Auto-Detected Internet Connection Types (continued)

Connection Type ISP Information

Fixed IP (Static) Account Setup

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.

2. To save your settings, click Apply.

3. Click Test to verify your Internet connection. If you have trouble connecting to the Internet,

see Chapter 6, “Troubleshooting.”

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 Wireless Modem Router” on

page 1-2. You must install the ADSL filters and connect the modem router to the ADSL line as

described in the ETGEAR 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 Wireless Modem Router” on

page 1-2.

2. Select Basic Settings to display the Basic Settings screen.

The Basic Settings screen is explained in “Understanding the Basic Settings Screen” on

page 1-8.

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3. Select Yes or o 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.

• o. If your ISP does not require a login, enter the account name, if required, and the

domain name, if required.

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 “ADSL Settings” on page 1-11 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 6, “Troubleshooting.”

ote: 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.

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ISP does not require login

ISP does require login

Understanding the Basic Settings Screen

The fields on the Basic Settings screen depend on whether or not your Internet connection requires a login.

Figure 1-4

The following table explains the fields in the Basic Settings screen. Note that the group of fields included in this screen depends on whether or not a login is required.

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Table 1-2. Basic Settings screen fields

Settings Description

Does Your ISP Require a Login? • Yes

• No

These fields appear only if no login is required.

These fields appear only if your ISP requires a login.

Internet IP Address

Domain Name Server (DNS) Address The DNS server is used to look up site addresses based on

Account Name (If required)

Domain Name (If required)

Encapsulation • PPPoE

Password The password that you use to log in to your ISP.

Idle Timeout (In minutes) If you want to change the login time-out, enter a new value in

• Get Dynamically from ISP. Your ISP uses DHCP to assign

This field appears only if no login is required.

Enter the account name provided by your ISP. This might also be called the host name.

Enter the domain name provided by your ISP.

• PPPoA

address.

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.

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.

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.

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Table 1-2. Basic Settings screen fields (continued)

Settings Description

NAT (Net Address Translation) 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 modem router uses. Classical routing should be selected only by experienced users

• Disable firewall. This disables the firewall in addition to disabling NAT. With the firewall disabled, the protections usually provided to your network are disabled.

These fields appear only if no login is required.

Router MAC Address 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.

*. Disabling NAT reboots the modem router and resets its configuration settings to the factory defaults. 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.

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ADSL Settings

ote: For information about how to install ADSL filters, see the ETGEAR 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).

ote: 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.The ADSL Settings screen displays.

Figure 1-5

2. In the Multiplexing Method drop-down list, select LLC-based or VC-based.

3. For the VPI, type a number between 0 and 255. The default is 8.

4. For the VCI, type a number between 32 and 65535. The default is 35.

5. Click Apply.

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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. 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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Chapter 2

Configuring Your Wireless Network

and Security Settings

This chapter describes how to configure the wireless features of your DG834N RangeMaxTM NEXT Wireless ADSL2+ Modem Router. 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” on this page

• “Configuring Your Wireless Network” on page 2-4

• “Configuring Your Wireless Security” on page 2-10

Planning Your Wireless Network

For compliance and compatibility between similar products in your area, the operating channel and region must be set correctly.

To manually configure the wireless settings, you must know the following:

• SSID. The default SSID for the modem router is NETGEAR.

• The wireless mode (802.11n, 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 “Configuring Your Wireless Security” on page 2-10.

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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-of-sight 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).

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 modem router provides highly effective security features, which are covered in detail in this chapter. Deploy the security features appropriate to your needs

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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 2-11).

• 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

“Hiding your wireless network name (SSID)” on page 2-11).

• 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

“Configuring WEP” on page 2-14).

• WPA-802.1x. Wi-Fi Protected Access (WPA) with user authentication implemented using IEE 802.1x and RADIUS servers (see “Configuring WPA-802.1x” on page 2-16).

• 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 (see “Configuring Mixed WPA-PSK+WPA2-PSK Security” on page 2-13).

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Configuring Your Wireless Network

You can view or manually configure the wireless settings and wireless security for the modem router in the Wireless Settings screen. If you want to make changes, make sure to note the current settings first. Once you have established basic wireless connectivity, you can enable security settings appropriate to your needs.

ote: 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 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 LAN address and password you have set up.

2. Select the Wireless Settings in the main menu. The Wireless Settings screen displays.

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Figure 2-2

Table 2-1 on page 2-7 describes the information that is displayed in the Wireless Settings

screen.

3. Choose a suitable descriptive name for the wireless network name (SSID). In the SSID field, enter a value of up to 32 alphanumeric characters. The default SSID is ETGEAR.

ote: The SSID of any wireless access adapters must match the SSID you specify in

the modem router. If they do not match, you will not get a wireless connection.

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4. Select the region in which the wireless interface will operate.

5. Set the channel if necessary. The default channel is 11.

This field determines which operating frequency will be used. It should not be necessary to change the wireless channel unless you notice interference problems with another nearby wireless router or access point. Select a channel that is not being used by any other wireless networks within several hundred feet of your modem router. For more information about the wireless channel frequencies, see the online document that you can access from “Preparing

Your Network” in Appendix A.

ote: Up to 270Mbps mode uses two channels, but in this mode only the first

channel is listed in the channel pulldown menu. The associated channels in this mode are: 1+5, 2+6, 3+7, 4+8, 5+9, 6+10, and 7+11. When you select another wireless network mode, the channel pulldown displays all available channels: 1 through 13. However, available wireless channels depend on the selected wireless region.

6. Select the mode in which the wireless interface will operate.

7. For initial configuration and test, leave the Wireless Card Access List set to allow everyone

access by making sure that Turn Access Control On is not selected in the Wireless Station Access List. In addition, leave the encryption strength set to one.

8. Click Save to save your settings or click Apply to allow your changes to take effect immediately.

9. Configure and test your computers for wireless connectivity.

Program the wireless adapter of your computers to have the same SSID and channel that you specified in the router. Check that they have a wireless link and can obtain an IP address by DHCP from the modem router.

Once your computers have basic wireless connectivity to the modem router, you can configure the advanced wireless security functions of the firewall.

Table 2-1 on page 2-7 shows the wireless settings.

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Table 2-1. Wireless Settings

Settings Description

Wireless LAN The pulldown menu just below Wireless Settings allows for the

selection of one of four wireless LANs (WLANs) with the following default names:

• NETGEAR

• NETGEAR2

• NETGEAR3

• NETGEAR4 You can change the default name of the selected WLAN in the Name (SSID) field. Note: The region, channel, and mode can be set only for the primary wireless LAN (NETGEAR). In addition, access control can be turned on only for the primary wireless LAN.

Wireless Network

Name (SSID) The SSID is also known as the wireless network name. Enter a 32-

character (maximum) name in this field. This field is case-sensitive. The default SSID is NETGEAR, but NETGEAR strongly recommends that you change your network name to a different value. In a setting in which there is more than one wireless network, different wireless network names provide a means for separating the traffic. Any device you that want to let participate in a wireless network must use the SSID.

Region The location where the firewall is used. Select your region from the

drop-down list. It might not be legal to operate the modem router in a region other than the regions shown here. Note: The region can be set only for the primary wireless LAN (NETGEAR) but applies to all wireless LANs.

Channel The wireless channel used by the gateway: 1 through 13. The

available channels depend on the region setting. 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 channel is 11. The total number of channels varies by region. The mode that you select also determines how many channels are displayed in the channel pulldown menu. Note: The channel can be set only for the primary wireless LAN (NETGEAR).

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Table 2-1. Wireless Settings (continued)

Settings Description

Wireless Network (continued)

Wireless Access Point

Mode Note: The mode can be set only for the primary wireless LAN (NETGEAR).

Wireless Access Point Control

• Up to 270Mbps means that all 802.11g, 802.11b, and faster Draft-N wireless stations can be used. This mode expands the channel bandwidth from 20 MHz to 40 MHz to achieve the 270-Mbps rate. The router selects channel expansion on a frameby-frame basis to avoid interference with the data transmissions of other access points or wireless stations. Up to 270Mbps mode uses two channels, but in this mode only the first channel is listed in the channel pulldown menu. The associated channels in this mode are: 1+5, 2+6, 3+7, 4+8, 5+9, 6+10, and 7+11. Up to 270Mbps mode is the fastest mode and is compatible with older wireless stations.

• Up to 130Mbps allows wireless stations that support speeds up to 130 Mbps. It is the default setting. In this case, the router transmits two streams with different data concurrently on the same channel. This mode restricts channel bandwidth to minimize interference with the data transmissions of other access points and wireless stations.

• g & b allows older 802.11g and 802.11b wireless stations to access this device. You might want to select this mode if you have a wireless station that is using WEP security and does not support WPA-PSK or WPA2-PSK.

• g only allows only 802.11g wireless stations to access this device.

• b only allows only 802.11b wireless stations to access this device. However, note that in b only mode, 802.11g wireless stations can connect if they can operate in 802.11b mode.

• Always On is selected by default. This setting enables the wireless radio, which allows the modem router to work as a wireless access point. The Wireless LED on the front of the modem router displays the current status of the wireless access point to let you know if it is disabled or enabled. The wireless access point must be enabled to allow wireless stations to access the Internet.

• Per Schedule Below (Use 24-hour clock). You can specify when the Wireless Access Point is turned on and turned off by entering a start time in the Hour and Minute fields next to Turn on Wireless Access Point and an end time in the Hour and Minute fields next to Turn off Wireless Access Point.

• Always Off. Turning off the wireless radio can be helpful for configuration, network tuning, or troubleshooting.

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Table 2-1. Wireless Settings (continued)

Settings Description

Wireless Access Point (continued)

Wireless Station Access List

Security Options Disable Wireless security is not used.

Allow Broadcast Name (SSID).

Wireless Isolation This feature is disabled by default. If it is enabled, wireless stations

Turn Access Control On

WEP In WEP (Wired Equivalent Privacy) mode you can select 64-bit or

WPA-PSK WPA Pre-Shared-Key (Wi-Fi Protected Access Pre-Shared Key)

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 some products such as Windows XP, but the data is still fully exposed to a determined snoop using specialized test equipment like wireless sniffers. For this reason NETGEAR recommends that you also enable wireless security.

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 wireless network name or SSID can access to your wireless network. For increased security, you can restrict access to the wireless network to only specific computers based on their MAC addresses. See “Restricting access by MAC

address.”

Note: Access control can be turned on only for the primary wireless LAN (NETGEAR).

128-bit data encryption. This mode has been superseded by WPA-PSK and WPA2-PSK, which should be selected if supported by your wireless client. See “Configuring WEP.”

uses a pre-shared key to perform the authentication and generate the initial data encryption keys. Then, it dynamically varies the encryption key. WPA-PSK uses TKIP (Temporal Key Integrity Protocol) data encryption, implements most of the IEEE 802.11i standard, and is designed to work with all wireless network interface cards, but not all wireless access points. See “Configuring Mixed WPA-

PSK+WPA2-PSK Security.”

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Table 2-1. Wireless Settings (continued)

Settings Description

Security Options (continued)

WPA2-PSK WPA Pre-Shared-Key (Wi-Fi Protected Access 2 with Pre-Shared

Key) uses a pre-shared key to perform the authentication and generate the initial data encryption keys. Then, it dynamically varies the encryption key. WPA2-PSK provides the best throughput with

802.11N because the encryption is supported in the hardware.

WPA2-PSK uses AES (Advanced Encryption Standard) data encryption, implements the full IEEE 802.11i standard, but does not work with some older wireless clients. See “Configuring Mixed

WPA-PSK+WPA2-PSK Security.”

Mixed WPA-PSK+ WPA2-PSK

WPA-802.1x In WPA-802.1x mode, user authentication is implemented using

Mixed WPA-PSK + WPA2-PSK uses both WPA-PSK + WPA2-PSK standard encryption. A high performance client such as the NETGEAR WN511B should connect using WPA2-PSK in order to achieve maximum performance. Wireless clients that connect to this router using WPA-PSK will run at reduced performance levels. See “Configuring Mixed WPA-PSK+WPA2-PSK Security.”

802.1x and RADIUS servers. See “Configuring WPA-802.1x.”

Configuring Your Wireless Security

This section discusses how to restrict wireless access to your network and how to configure wireless security such as Mixed WPA-PSK+WPA2-PSK, WEP, and WPA-802.1x.

ote: 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.

Restricting Wireless Access to Your Network

By default, any wireless PC that is configured with the correct SSID can access your wireless network. For increased security, the modem router provides several ways to restrict wireless access to your network. You can do the following:

• Turn off wireless connectivity completely.

• Restrict access based on the wireless network name (SSID).

• Restrict access based on the Wireless Card Access List.

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These options are discussed in the following sections.

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 through 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 ame (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.

Warning: The SSID of any wireless access adapters must match the SSID you specify 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 Amodem router. MAC address filtering adds an obstacle against unwanted access to your network, but the data broadcast over the wireless link is fully exposed.The Wireless Station Access list determines which wireless hardware devices will be allowed to connect to the modem router.

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To restrict access based on MAC addresses:

ote: If you configure the modem router 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.

2. In the Wireless Settings screen, under the Wireless Station Access List section, click the Setup Access List button to display the Wireless Station Access List.

Figure 2-3

3. Select the Turn Access Control On check box to enable the restricting of wireless computers by their MAC addresses.

4. If the wireless station is currently connected to the network, you can select it from the Available Wireless Stations list. Click Add to add the station to the Trusted Wireless Stations list.

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5. If the wireless station is not currently connected, you can enter its address manually. Enter the MAC address of the authorized computer. The MAC address is usually printed on the wireless card, or it might appear in the modem router’s DHCP table. The MAC address is 12 hexadecimal digits.

Click Add to add your entry. You can add several stations to the list. When you are finished adding stations, click Apply.

ote: You can copy and paste the MAC addresses from the modem router’s Attached

Devices screen into the MAC Address field of this screen. To do this, configure each wireless computer to obtain a wireless link to the modem router. The computer should then appear in the Attached Devices screen.

ote: If you are configuring the modem router from a wireless computer whose

MAC address is not in the Trusted Wireless Stations list, and you select trusted wireless stations only, you will lose your wireless connection when you click Apply. You must then access the modem router from a wired computer to make any further changes.

6. Make sure the Turn Access Control On check box is selected, and then click Apply.

Now, only devices on this list will be allowed to wirelessly connect to the modem router. This prevents unauthorized access to your network.

Configuring Mixed WPA-PSK+WPA2-PSK Security

A high-performance client such as the NETGEAR WN511B must connect to the modem router using WPA2-PSK to achieve maximum performance. Wireless clients that connect to the modem router using WPA-PSK run at no more than 802.11g speed. This option allows wireless clients to use either encryption method.

ote: Not all wireless adapters support WPA or WPA2. Furthermore, client software is

required on the client. Windows XP and Windows 2000 with Service Pack 3 do include the client software that supports WPA. Nevertheless, the wireless adapter hardware and driver must also support WPA. Consult the product document for your wireless adapter and WPA client software for instructions on configuring WPA settings.

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To configure Mixed WPA-PSK+WPA2-PSK:

1. Log in at the default LAN address of http://192.168.0.1, with the default user name of admin and default password of password, or using whatever LAN address and password you have set up.

2. Select Wireless Settings below Setup in the main menu of the modem router.

3. Select the Mixed WPA-PSK+WPA2-PSK radio button. The Wireless Settings screen

expands to include the WPA2-PSK security encryption.

4. Enter the pre-shared key in the etwork Key field using between 8 and 63 characters.

5. Click Save to save your settings or click Apply to allow your changes to take effect

immediately.

ote: The procedures to configure WPA-PSK and WPA2-PSK are identical to the

procedure to configure Mixed WPA-PSK+WPA2-PSK. The only difference is that you select either the WPA-PSK (Wi-Fi Protected Access Pre-Shared Key) or WPA2-PSK (Wi-Fi Protected Access 2 with Pre-Shared Key) radio button in

step 3.

For details about WPA-802.1x authentication options, see “Configuring WPA-802.1x” on

page 2-16.

Choosing Alternative Authentication and Encryption Methods

Restricting wireless access prevents intruders from connecting to your network. However, the wireless data transmissions are still vulnerable to snooping. Using the data encryption settings described in this section will prevent a determined intruder from eavesdropping on your wireless data communications. Also, if you are using the Internet for such activities as purchases or banking, those Internet sites use another level of highly secure encryption called SSL. You can tell if a web site is using SSL because the Web address begins with HTTPS rather than HTTP.

Configuring WEP

Wired Equivalent Privacy (WEP) security is the most basic and simplest form of wireless security. It is the most often used, but least secure of the available options. 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.

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To configure WEP data encryption:

2. Select Wireless Settings in the main menu.

3. In the Security Options section of the screen, select WEP (Wired Equivalent Privacy). The

WEP Security Encryption section displays.

Figure 2-4

4. Select the authentication type:

• Automatic.This is the default setting.

• Open System.

• Shared Key.

5. Select the encryption strength setting:

• 64-bit WEP.

• 128-bit WEP.

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.

• Automatic. Enter a word or group of printable characters in the Passphrase field and click

Generate. The four key boxes are automatically populated with key values.

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• Manual. The number of hexadecimal digits that you must enter depends on the encryption

strength setting:

– For 64-bit WEP, enter 10 hexadecimal digits (any combination of 0–9, a–f, or A–F).

– For 128-bit WEP, enter 26 hexadecimal digits (any combination of 0–9, a–f, or A–F).

7. Select the radio button for the key you want to make active.

Be sure that you clearly understand how the WEP key settings are configured in your wireless adapter. Wireless adapter configuration utilities such as the one included in Windows XP allow entry of only one key, which must match the default key you set in the modem router.

8. Click Save to save your settings or click Apply to allow your changes to take effect immediately.

ote: When configuring the modem router from a wireless computer, if you specify WEP

settings, you will lose your wireless connection when you click Apply. You must then either configure your wireless adapter to match the modem router WEP settings or access the modem router from a wired computer to make any further changes.

Configuring WPA-802.1x

This version of WPA requires the use of a RADIUS server for authentication. Each user (wireless client) must have a user login on the RADIUS server, and the modem router must have a client login on the RADIUS server. Data transmissions are encrypted using a key that is automatically generated.

2. Select Wireless Settings in the main menu.

3. In the Security Options section of the screen, select WPA-802.1x.

4. In the Radius Server ame/IP Address field, enter the name or IP address of the RADIUS

server on your LAN. This is a required field.

5. In the Radius Port field, enter the port number used for connections to the RADIUS server. The default port is 1812.

6. In the Shared Key field, enter the value that you want to use for the RADIUS shared key. This key enables the modem router to log in to the RADIUS server and must match the client login value used on the RADIUS server.

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Chapter 3

Protecting Your Network

This chapter describes how to use the basic firewall features of the DG834N RangeMaxTM NEXT Wireless ADSL2+ Modem Router to protect your network. This chapter includes:

• “Protecting Access to Your Wireless Modem Router” on this page

• “Configuring Basic Firewall Services” on page 3-3

• “Firewall Rules” on page 3-5

• “Services” on page 3-13

• “Setting Times and Scheduling Firewall Services” on page 3-14

Protecting Access to Your Wireless Modem 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 the following procedures to change the modem router’s password and the period for the administrator’s login time-out.

ote: The user name and password are not the same as any other user name or password

your 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 case and lower case letters, numbers, and symbols. Your password can be up to 30 characters.

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How to Change 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 and default password of password, or using whatever password and LAN address you have chosen for the modem router.

Figure 3-1

2. In the main menu of the browser interface, under Maintenance, select Set Password to display the following 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.

ote: After changing the password, you are required to 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.

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Changing the Administrator Login Time-out

For security, the administrator’s 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 that you can configure include access blocking and scheduling of firewall security. These topics are presented in the following sections.

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 RangeMax NEXT Wireless ADSL2+ Modem Router prevents objectionable content from reaching your PCs. The modem router allows you to control access to Internet content by screening for keywords within Web addresses. Key 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. Automatically 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.

How to Block Keywords and Sites

The modem router allows you to restrict access to Internet content based on functions such as Web addresses and Web address keywords.

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2. In the main menu, under Security, select Block Sites to display the following screen

Figure 3-3

3. To enable keyword blocking, select one of the following:

• ever. Disable site blocking.

• Per Schedule. Turn on keyword blocking according to the settings in the Schedule screen.

• Always. Turn on keyword blocking all the time, independent of the Schedule screen.

4. Enter a keyword or domain in the Type Keyword or Domain ame Here field, and then click Add Keyword.

Keyword application examples:

• If the keyword XXX is specified, the URL www.zzzyyqq.com/xxx.html is blocked.

• If the keyword .com is specified, only websites with other domain suffixes (such as .edu,

.org, or .gov) can be viewed.

• If a period (.) is specified as the keyword, all Internet browsing access is blocked.

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ote: Up to 32 entries are supported in the keyword list (that is, in the “Block Sites

Containing these Keywords or Domain Names:” list). To delete a keyword or domain, select it from the list, click Delete Keyword. To delete all keywords, click Clear List.

5. 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.

To allow a trusted user to visit blocked sites:

a. Select the Allow Trusted IP Address to Visit Blocked Sites check box.

b. Enter the computer’s IP address in the Trusted IP Address field.

6. Click Apply to save your settings.

Firewall Rules

Firewall rules block or allow specific traffic passing through from one side of the 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.

A firewall has two default rules, one for inbound traffic and one for outbound. The default 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 takes effect first. See “Order of Precedence for Rules” on page 3-12 for more details.

To access the rules configuration of the modem router, select Firewall Rules on the main menu. The Firewall Rules screen displays

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Figure 3-4

To configure firewall rules:

• To add either an outbound or inbound service, click Add. For more information, see “Inbound

Rules (Port Forwarding)—the following section—and “Outbound Rules (Service Blocking)” on page 3-9.

• 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 an existing rule to a different position in the table, select its button on the left side of the table, and click Move. At the prompt, enter the number of the desired new position and click OK.

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 address 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.

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ote: Some residential 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, refer to 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 any outside IP address to the IP address of your Web server at any time of day. An inbound rule is shown in the Inbound Services screen, which is accessible by clicking on Add under Inbound Services in the Firewall Rules screen.

Figure 3-5

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This screen allows you to configure the following settings:

• 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. See

“How to Define Services” on page 3-13.

• Action. Choose how 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 you have defined in the Services screen:

– ALLOW always. Traffic for the selected service is always allowed.

– ALLOW by schedule, otherwise Block. Traffic for the selected service is allowed

according to how the service is defined in the Services screen, but otherwise blocked.

– BLOCK always. Traffic for the selected service is always blocked.

– BLOCK by schedule, otherwise Allow. Traffic for the selected service is blocked

according to how the service is defined in the Services screen, but otherwise allowed.

• Send to LA Server. Enter the IP address of the computer or server on your LAN that will receive the inbound traffic covered by this rule.

• WA 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.

– Single address. Enter the required start address in the Start field.

– Address range. If this option is selected, you must enter the start and finish addresses in

the Start and Finish fields.

• Log. You can select whether the traffic will be logged. The choices are:

– ever. 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 settings and action will be logged.

– ot match. Traffic of this type that does not match the settings and action will be logged.

Inbound Rule Example: Allowing Video conferencing

If you want to allow incoming video conferencing to be initiated from a restricted range of outside IP addresses, such as from a branch office, you can create an inbound rule. In the example shown in the following figure, CU-SeeMe connections are allowed only from a specified range of external IP addresses. In this case, we have also specified logging of any incoming CU-SeeMe requests that do not match the allowed settings.

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Figure 3-6

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 screen 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 Setup screen 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 example in the previous figure). 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

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• Type of service being requested (service port number)

Following is an application example of outbound rules.

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 create in the Schedule screen.You can specify that the modem router logs any attempt to use Instant Messenger during this blocked period. You can also open or close Instant Messenger ports: see the Firewall Rules screen in the “Order of Precedence for

Rules” section on page 3-12.

An outbound rule is shown in the Outbound Services screen, which is accessible by clicking on Add under Outbound Services in the Firewall Rules screen.

Figure 3-7

This screen allows you to configure the following settings:

• 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 Add Custom Service button in the Services screen to add any additional services or applications that do not already appear. See “How to Define Services” on page 3-13.

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