NETGEAR DGN2000 User Manual

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Wireless-N ADSL2+ Modem Router DGN2000 Reference Manual

NETGEAR, Inc.

350 East Plumeria Drive San Jose, CA 95134 USA

202-10390-01 July 2008

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 instruct ions, may cause harmf ul 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 DGN2000 Wireless-N ADSL2+ Modem Router

je ve shodì se základními požadavky a dalšími pøíslušnými ustanoveními smìrnice

1999/5/ES. Undertegnede

N ADSL2+ Modem Router

direktiv 1999/5/EF. Hiermit erklärt

Modem Router

übrigen einschlägigen Bestimmungen der Richtlinie 1999/5/EG befindet. Käesolevaga kinnitab

Router

vastavust direktiivi 1999/5/EÜ põhinõuetele ja nimetatud direktiivist tulenevatele

teistele asjakohastele sätetele. Hereby,

Router

is in compliance with the essential requirements and other relevant provisions of

Directive 1999/5/EC. Por medio de la presente

ADSL2+ Modem Router

disposiciones aplicables o exigibles de la Directiva 1999/5/CE. ΜΕ ΤΗΝ ΠΑΡΟΥΣΑ

Modem Router

ΛΟΙΠΕΣ ΣΧΕΤΙΚΕΣ ΔΙΑΤΑΞΕΙΣ ΤΗΣ ΟΔΗΓΙΑΣ 199 9/5/ ΕΚ.

NETGEAR, Inc. erklærer herved, at følgende udstyr DGN2000 Wireless-

overholder de væsentlige krav og øvrige relevante krav i

NETGEAR, Inc., dass sich das Gerät DGN2000 Wireless-N ADSL2+

in Übereinstimmung mit den grundlegenden Anforderungen und den

NETGEAR, Inc. seadme DGN2000 Wireless-N ADSL2+ Modem

NETGEAR, Inc., declares that this DGN2000 Wireless-N ADSL2+ Modem

NETGEAR, Inc. declara que el DGN2000 Wireless-N

cumple con los requisitos esenciales y cualesquiera otras

NETGEAR, Inc. ΔΗΛΩΝΕΙ ΟΤΙ DGN2000 Wireless-N ADSL2+

ΣΥΜΜΟΡΦΩΝΕΤΑΙ ΠΡΟΣ ΤΙΣ ΟΥΣΙΩΔΕΙΣ ΑΠΑΙΤΗΣΕΙΣ ΚΑΙ ΤΙΣ

Français [French]

Italiano [Italian]

Latviski [Latvian]

Lietuviø [Lithuanian]

Par la présente

Modem Router

pertinentes de la directive 1999/5/CE. Con la presente

Modem Router

stabilite dalla direttiva 1999/5/CE.

NETGEAR, Inc. deklarç, ka DGN2000 Wireless-N ADSL2+ Modem Router atbilst

Ar šo Direktîvas 1999/5/EK bûtiskajâm prasîbâm un citiem ar to saistîtajiem noteikumiem.

NETGEAR, Inc. deklaruoja, kad šis DGN2000 Wireless-N ADSL2+ Modem

Šiuo

Router

atitinka esminius reikalavimus ir kitas 1999/5/EB Direktyvos nuostatas.

NETGEAR, Inc. déclare que l'appareil DGN2000 Wireless-N ADSL2+

est conforme aux exigences essentielles et aux autres dispositions

NETGEAR, Inc. dichiara che questo DGN2000 Wireless-N ADSL2+

è conforme ai requisiti essenziali ed alle altre disposizioni pertinenti

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iii

Nederlands [Dutch]

Hierbij verklaart

Router

in overeenstemming is met de essentiële eisen en de andere relevante bepalingen

van richtlijn 1999/5/EG.

NETGEAR, Inc. dat het toestel DGN2000 Wireless-N ADSL2+ Modem

Malti [Maltese]

Magyar [Hungarian]

Polski [Polish]

Português [Portuguese]

Slovensko [Slovenian]

Slovensky [Slovak]

Suomi [Finnish]

Svenska [Swedish]

Hawnhekk,

Router

Dirrettiva 1999/5/EC. Alulírott,

Router

elõírásainak. Niniejszym

Router

postanowieniami Dyrektywy 1999/5/EC.

NETGEAR, Inc., jiddikjara li dan DGN2000 Wireless-N ADSL2+ Modem

jikkonforma mal-tiijiet essenzjali u ma provvedimenti orajn relevanti li hemm fid-

NETGEAR, Inc. nyilatkozom, hogy a DGN2000 Wireless-N ADSL2+ Modem

megfelel a vonatkozó alapvetõ követelményeknek és az 1999/5/EC irányelv egyéb

NETGEAR, Inc. oœwiadcza, ¿e DGN2000 Wireless-N ADSL2+ Modem

jest zgodny z zasadniczymi wymogami oraz pozosta³ymi stosownymi

NETGEAR, Inc. declara que este DGN2000 Wireless-N ADSL2+ Modem Router está

conforme com os requisitos essenciais e outras disposições da Directiva 1999/5/CE.

NETGEAR, Inc. izjavlja, da je ta DGN2000 Wireless-N ADSL2+ Modem Router v

skladu z bistvenimi zahtevami in ostalimi relevantnimi doloèili direktive 1999/5/ES.

NETGEAR, Inc. týmto vyhlasuje, že DGN2000 Wireless-N ADSL2+ Modem Router

spåòa základné požiadavky a všetky príslušné ustanovenia Smernice 1999/5/ES.

NETGEAR, Inc. vakuuttaa täten että DGN2000 Wireless-N ADSL2+ Modem Router

tyyppinen laite on direktiivin 1999/5/EY oleellisten vaatimusten ja sitä koskevien direktiivin muiden ehtojen mukainen.

Härmed intygar de väsentliga egenskapskrav och övriga relevanta bestämmelser som framgår av direktiv 1999/5/EG.

NETGEAR, Inc. att denna [utrustningstyp] står I överensstämmelse med

A printed copy of the EU Declaration of Conformity certificate for this product is provided in the DGN2000 product package.

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Bestätigung des Herstellers/Importeurs

Es wird hiermit bestätigt, daß das DGN2000 Wireless-N ADSL2+ Modem Router gemäß der im BMPT-Amt sblVfg 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 DGN2000 Wireless-N 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 Contr ol 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 DGN2000 Wireless-N 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.

v1.0, July 2008

Product and Publication Details

Model Number: DGN2000 Publication Date: July 2008 Product Family: Wireless Modem Router Product Name: DGN2000 Wireless-N ADSL2+ Modem Router Home or Business Product: Home Language: English Publication Part Number: 202-10390-01 Publication Version Number: 1.0

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Wireless-N ADSL2+ Modem Router DGN2000 Reference Manual

About This Manual

Who Should Use This Book .............................................................................................. xi

How to Use This Book ...................................................................................................... xi

Conventions, Formats and Scope ....................................................................................xii

How to Use This Manual .................................................................................................xiii

How to Print this Manual ..................................................................................................xiii

Revision History ..................... ... ... .... ... ... ... ....................................... ... .... ... ... ... ... .... ... ... ...xiv

Chapter 1 Connecting Your Router to the Internet

Using the Setup Manual .................................................................................................1-1

What You Need before You Begin ..................................................................................1-2

Logging In to the Wireless Modem Router .....................................................................1-3

Auto-detecting Your Internet Connection ................................... ..................................... 1-5

Viewing or Manually Configuring Your ISP Settings .......................................................1-6

Understanding the Basic Settings Screen ......................................................................1-8

ADSL Settings ..............................................................................................................1-11

How the Internet Connection Works .............................................................................1-12

Chapter 2 Configuring Your Wireless Network and Security Settings

Planning Your Wireless Network ....................................................................................2-1

Wireless Placement and Range Guidelines .............................................................2-2

Wireless Security Options ..... .... ... ... ... .... ... ... ... ... .... .......................................... ... ... ..2-3

Manually Configuring Your Wireless Network .................................. ... .... ... ... ... ... .... ... ... ..2-4

Manually Configuring Your Wireless Security ...............................................................2-10

Restricting Wireless Access to Your Network ........................................................ 2-11

Turning off wireless connectivity completely ....................................................2-11

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Hiding your wireless network name (SSID) .....................................................2-11

Restricting access by MAC address ................................................................2-11

Configuring Mixed WPA-PSK+WPA2-PSK Security ..............................................2-13

Choosing Alternative Authentication and Encryption Methods ..............................2-14

Configuring WEP .............................................................................................2-15

Configuring WPA-802.1x .................................................................................2-16

Using Push 'N' Connect (WPS) to Configure Your Wireless Network and Security .....2-17

Connecting Additional Wireless Client Devices After WPS Setup .........................2-20

Chapter 3 Protecting Your Network

Protecting Access to Your Wireless Modem Router ........................... ............................3-1

How to Change the Built-In Password .....................................................................3-2

Changing the Administrator Login Time-out .............................................................3-3

Configuring Basic Firewall Services ...............................................................................3-3

Blocking Keywords, Sites, and Services ......... ... .... ... ... ... .... ... ... ... .... ... ... ... ... .... ... ... ..3-3

How to Block Keywords and Sites ...........................................................................3-3

Firewall Rules .................................................................................................................3-5

Inbound Rules (Port Forwarding) .............................. ............................................... 3-6

Inbound Rule Example: A Local Public Web Server ..........................................3-7

Inbound Rule Example: Allowing Video conferencing ....................................... 3-8

Considerations for Inbound Rules .....................................................................3-9

Outbound Rules (Service Blocking) .........................................................................3-9

Outbound Rule Example: Blocking Instant Messenger .....................................3-9

Order of Precedence for Rules ..............................................................................3-11

Services ................................. ................................................ .......................................3-12

How to Define Services ..........................................................................................3-12

Setting Times and Scheduling Firewall Services ................................................ .......... 3-13

How to Set Your Time Zone ...................................................................................3-14

How to Schedule Firewall Services ........................................................................3-15

Chapter 4 Managing Your Network

Backing Up, Restoring, and Erasing Your Settings ...................................... ... ... .... ... ... ..4-1

How to Back Up the Configuration to a File ............................................................. 4-1

How to Restore the Configuration from a File .............................. ............................4-2

How to Erase the Configuration ...............................................................................4-2

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Upgrading the Wireless Modem Router’s Firmware .............. .... .....................................4-3

How to Upgrade the Wireless Modem Router Firmware ..........................................4-3

Network Management Information .................................................................................4-4

Viewing the Wireless Modem Router Status and Usage Statistics ..........................4-4

Viewing Attached Devices ......................................................................................4-10

Viewing, Selecting, and Saving Logged Information ..............................................4-11

Selecting What Information to Log ..................................................................4-12

Saving Log Files on a Server ..........................................................................4-13

Examples of Log Messages ...................................................................................4-13

Activation and Administration ..........................................................................4-13

Dropped Packets .............................................................................................4-13

Enabling Security Event E-mail Notification .................................................................4-14

Running Diagnostic Utilities and Rebooting the Wireless Modem Router ....................4-15

Configuring Remote Management ............................ ................. ................ ................ ...4-16

Automatic Firmware Recovery .....................................................................................4-18

Chapter 5 Advanced Configuration

Configuring Advanced Security ......................................................................................5-1

Setting Up a Default DMZ Server .............................. ... ... .... ... ... ... .... ... ... ... ...............5-2

How to Configure a Default DMZ Server ...........................................................5-2

Other WAN Options ............................... ... ... ... ....................................... ... ... .... ... ... ..5-3

Configuring LAN IP Settings ...........................................................................................5-4

Configuring DHCP ....................................................................................................5-6

Use Router as DHCP Server ........................... ... ... ... .... ... ... ... ............................5-6

How to Configure Reserved IP Addresses ........................................................5-7

Configuring LAN TCP/IP Settings ............................................................................5-8

Configuring Dynamic DNS .......................................................................................5-9

How to Configure Dynamic DNS ..............................................................................5-9

Using Static Routes ......................................................................................................5-10

Static Route Example .............................................................................................5-10

How to Configure Static Routes .............................................................................5-11

How to Configure Universal Plug and Play ...................................................................5-13

Building Wireless Bridging and Repeating Networks ...................................................5-14

How to Configure a Point-to-Point Bridge Configuration ........................ ................ 5-16

How to Configure a Multi-Point Bridge ...................................................................5-17

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Wireless-N ADSL2+ Modem Router DGN2000 Reference Manual

How to Configure a Repeater with Wireless Client Association .......................... ...5-19

Displaying and Configuring Advanced WPS Settings ........................ .... ... ... ... ... .... ... ...5-20

Chapter 6 Troubleshooting

Basic Functioning ...........................................................................................................6-1

“Welcome” Page Displays instead of Router Management Interface ......................6-2

Power LED Is Not On ...............................................................................................6-2

Power LED Is Red ....................................................................................................6-2

LAN or ADSL Port LED Is Not On ............................................................................6-3

Window Appears Asking You to Reload Firmware .............................. ..................... 6-3

Troubleshooting the Web Configuration Interface ..........................................................6-3

Troubleshooting the ISP Connection ..............................................................................6-4

ADSL Link ................................................................................................................6-4

ADSL Link LED Is Green or Blinking Green ...................................................... 6-5

ADSL Link LED Is Blinking Amber .....................................................................6-5

ADSL Link LED Is Off ........................................................................................6-5

Internet LED is Red ..................................................................................................6-5

Obtaining an Internet IP Address .............................................................................6-6

Troubleshooting PPPoE or PPPoA .......................................................................... 6-6

Troubleshooting Internet Browsing ..........................................................................6-7

Resolving a ‘Reload Firmware’ Message .................................................................6-7

Troubleshooting a TCP/IP Network Using the Ping Utility ..............................................6-8

Testing the LAN Path to Your Router .......................................................................6-8

Testing the Path from Your Computer to a Remote Device .....................................6-9

Restoring the Default Configuration and Password ............ ... .... ... ... ... .... ... ... ... ... .... ... ...6-10

Using the Wireless On/Off and WPS Buttons to Reset the Router ........................6-10

Problems with Date and Time .......................................................................................6-10

Appendix A Technical Specifications

General Specifications ................. .... ............................................................................. . A-1

Default Configuration ..................................................................................................... A-2

Appendix B Related Documents

Index

v1.0, July 2008

About This Manual

The NETGEAR® Wireless-N ADSL2+ Modem Router DGN2000 Refer ence Manual describes how to install, configure, operate, and troubleshoot the DGN2000 Wireless-N ADSL2+ Modem Router using its included software. This book describes the software configuration procedures and explains the options available within thos e proce dures.

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 Wireless-N 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 Wireless-N 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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Wireless-N ADSL2+ Modem Router DGN2000 Reference Manual

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

• Appendix A, “Technical Specifications,” gives Wireless-N ADSL2+ Modem Router specifications and lists default feature values.

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

Note: See the product release notes for the W ireless-N 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:

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.

xii

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Wireless-N ADSL2+ Modem Router DGN2000 Reference Manual

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 Wireless-N ADSL2+ Modem Router according to these specifications:

Product Version DGN2000 Wireless-N ADSL2+ Modem Router Manual Publication Date July 2008

Note: 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.

xiii

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Wireless-N ADSL2+ Modem Router DGN2000 Reference Manual

• Printing from PDF. Your computer must have the free Adobe Acrobat Read er 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.

Revision History

Part Number

208-10255-01 1.0 July 2008 Product created

xiv

Version Number

Date Description

v1.0, July 2008

Chapter 1

Connecting Your Router to the Internet

This chapter describes how to configure your DGN2000 Wireless-N ADSL2+ Modem Router Internet connection. When you perform the initial configuration of your modem router using the

DGN2000 Wireless-N ADSL2+ Modem Router Resource CD as described in the Wireless-N ADSL2+ Modem Router DGN2000 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 DGN2000 Wireless-N

ADSL2+ Modem Router Resource CD for initial configuration, as described in the Wireless-N ADSL2+ Modem Router DGN2000 Setup Manual.

This chapter includes:

• “Using the Setup Manual”

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

• “Logging In to the Wireless Modem Router” on page 1-3”

• “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 Wireless-N ADSL2+ Modem Router DGN2000 Setup Manual. The Setup Manual explains how to launch the NETGEAR Smart Wizard

on the DGN2000 Wireless-N ADSL2+ Modem 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.

1-1

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For installation instructions in a language other than English, see the language options on the DGN2000 Wireless-N ADSL2+ Modem Router 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 Wireless-N ADSL2+ Modem Router DGN2000 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 B.

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.

1-2 Connecting Your Router to the Internet

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Wireless-N ADSL2+ Modem Router DGN2000 Reference Manual

Logging In to the Wireless 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 that you can access from “Preparing Your Network” in Appendix B.

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.

Connecting Your Router to the Internet 1-3

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Wireless-N ADSL2+ Modem Router DGN2000 Reference Manual

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 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. See the next section, “Auto-detecting Your Internet

Connection.”

– No, 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.”

1-4 Connecting Your Router to the Internet

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Wireless-N ADSL2+ Modem Router DGN2000 Reference Manual

Auto-detecting Your Internet Connection

The Smart 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 “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 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 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 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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www.netgear.com to a numeric IP

Wireless-N ADSL2+ Modem Router DGN2000 Reference Manual

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 address. For a fixed IP address configuration, you must obtain DNS server addresses from your ISP and enter them manually here.

www.netgear.com to a numeric IP

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 1-3. You must install the ADSL filters and connect the modem router to the ADSL line as

described in the Wireless-N ADSL2+ Modem Router DGN2000 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 1-3.

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 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.

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.”

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.

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Understanding the Basic Settings Screen

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

ISP does not require login

ISP does require 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 Th e DNS server is used to look up site addresses based on

Account Name (If required)

Domain Name (If required)

Encapsulation • PPPoE (PPP over Ethernet)

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

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 (PPP over ATM)

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.

• Get Dynamically from ISP. Yo ur ISP use s DH C P to assi gn your IP address. Your ISP automatically assigns these addresses.

• Use Static IP Add res s. 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 AT M (IFo A) . 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

Note: For information about how to install ADSL filters, see the Wireless-N ADSL2+

Modem Router DGN2000 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.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 DGN2000 Wireless-N 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”

• “Manually Configuring Your Wireless Network”

• “Manually Configuring Your Wireless Security”

• “Using Push 'N' Connect (WPS) to Configure Your Wireless Network and Security

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. – The wireless mode (802.11n, 802.11g, or 802.11b) that each wireless adapter supports. – W ireless security option. To successfully implement wireless security, check each wireless

adapter to determine which wireless security option it supports.

See “Manually Configuring Your Wireless Security” on page 2-10.

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• 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 on-screen 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 on-screen 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 and Security” on

page 2-17.

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.

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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.

There are several ways you can enhance the security of your wireless network:

DGN2000

Figure 2-1

There are several ways you can enhance the security of your wireless network:

• 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).

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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

“Configuring WEP” on page 2-15).

• 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).

Manually 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.

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 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 NETGEAR.

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Note: 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.

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 B.

Note: Up to 270Mbps mode uses two channe ls, but in this mode only the first chan-

nel 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. 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 None.

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

8. 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.

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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 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. For Up to 130Mbps mode, the default channel is 11; for Up to 270Mbps mode, the default channel is 7. 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).

Enable Selected by default, this setting ena bles the wireless radio,

• 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 frame-by-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 speeds up to 130 Mbps. 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. It is the default setting.

• 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.

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. 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.

allows wireless stations that support

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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 of Name (SSID).

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

Turn Access Control On Access control is disabled by default so that any computer

WEP In WEP (Wired Equivalent Privacy) mode you can select

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

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.

stations cannot communicate with each other or with stations on the wired network.

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.”

64-bit or 128-bit data encryption. This mode has been superseded by WPA-PSK and WP A2-PSK, which should be selected if possible. See “Configuring WEP.”

Key) 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 network cards. See “Configuring

Mixed WPA-PSK+WPA2-PSK Security.”

Mixed WPS-PSK+ WPA2-PSK

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

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.”

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

802.1x.”

Manually Configuring Your Wireless Security

T o 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

and Security” on page 2-17).

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.

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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. These options are discussed in the following sections.

Turning off wireless connectivity completely

You can completely turn off the wireless connectivity of the modem router by pressing the Wireless On/Off button on the side panel 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 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.

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

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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.

To restrict access based on MAC addresses:

Note: If you configure the modem router from a wireless computer, add your com-

puter’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 W ireless S tation Access List section, click the Setup Access List button to display the list.

Figure 2-3

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

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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.

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 ta ble. 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.

Note: 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.

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

MAC address is not in the Trusted W ireless S tations 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.

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Note: 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.

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 WPA-PSK.

4. Enter the pre-shared key in the Network Key field using between 8 and 63 characters. Click Save to save your settings or click Apply to allow your changes to take effect

immediately.

Note: 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.

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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.

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.

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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.

• 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.

Note: 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.

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

4. In the Radius Server Name/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.

Using Push 'N' Connect (WPS) to Configure Your Wireless Network and Security

If your wireless clients support Wi-Fi Protected Setup (WP S), 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 (computers that will connect wirelessly to the modem router are clients). WPS automatically configures the 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 Wi-Fi Protected Setup (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 2-20.

• If the modem router has already been configured manually , and either WPS-PSK or WPA2PSK security has been enabled, a wireless client can be connected quickly and simply by using the WPS method of connecting to the wireless network. In this case, the existing wireless settings are broadcast to the WPS-capable client.

1. For a list of other Wi-Fi-certified products available from NETGEAR, go to http://www.wi-fi.org.

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These instructions assume that you are configuring WPS on the modem router for the first time and connecting a WPS-capable device.

To set up basic wireless connectivity:

You can also enter either of these addresses to connect to the modem router:

http://www.routerlogin.net or http://www.routerlogin.com.

2. Select Add WPS Client (computers that will connect wirelessly to the router are clients) in

the main menu. The Add WPS Client wizard screen displays.

Figure 2-5

3. Click Next. The screen changes to allow you to select the method for adding the WPS client.

4. Select the method for adding the WPS client. 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 Figure 2-6 on page 2-19.)

– Select the Push Button radio box and either press the WPS Push Button on the side of

the modem router or click the soft WPS Push Button on the screen (as shown below).

– The modem router will attempt to communicate with the client; you have 2 minutes to

enable WPS from the client device using the client’s WPS networking utility.

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Figure 2-6

• Entering a PIN. If you want to use the PIN method, select the PIN radio box. A screen

similar to the one shown below displays. – Go to your wireless client and, from the client’s WPS utility, obtain the wireless

client’s security PIN, or follow the client’s WPS utility instructions to generate a security PIN.

– Then, enter this PIN in the Enter Client’s PIN field provided on the modem router

and click Apply. You have 4 minutes to enable WPS on the router using this method.

Figure 2-7

Using either method, the client wireless device will attempt to detect the WPS signal from the modem router and establish a wireless connection in the time allotted.

• While the modem router attempts to connect to a WPS-capable device, the Push 'N'

Connect LED on the front of the modem router blinks green. When the modem router has established a WPS connection, the LED is solid green.

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• If a connection is established, the modem router WPS screen displays a message

confirming that the wireless client was successfully added to the wireless network. (The modem router has generated an SSID, implemented WPA/WPA2 wireless security [including a PSK security password] on the modem router, and has sent this configuration to the wireless client.)

5. Note the new SSID and WPA/WPA2 password for the wireless network.

T o access the Internet from any computer connected to your modem router, launch a browser su ch as Microsoft Internet Explorer. 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,

security will not be implemented on the modem router.

For more information about WPS, see “Displaying and Configuring Advanced WPS Settings” in

Chapter 5.

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 WPS-enabled 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 WPS Settings 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 Push 'N' Connect (WPS) to Configure Your Wireless

Network and Security” on page 2-17.

2. To view a list of all devices connected to your modem router (including wireless and Ethernetconnected), see “Viewing Attached Devices” in Chapter 4.

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 Security” on page 2-10).

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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 + WP A2/PSK radio button on the Wireless Settings screen (see “Manually Configuring Your Wireless Security” on page 2-10) 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 procedures in “Using Push 'N'

Connect (WPS) to Configure Your Wireless Network and Security” on page 2-17.

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 Advanced WPS

Settings screen.

To view a list of all de vices connected to your modem router (including wireless- and Ethernetconnected), see “Viewing Attached Devices” in Chapter 4.

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Chapter 3

Protecting Your Network

This chapter describes how to use the basic firewall features of the DGN2000 Wireless-N ADSL2+ Modem Router to protect your network. This chapter includes:

• “Protecting Access to Your Wireless Modem Router”

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

• “Firewall Rules” on page 3-5”

• “Services” on page 3-12”

• “Setting Times and Scheduling Firewall Services” on page 3-13”

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.

Note: 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.

Note: 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 Wireless-N 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 W eb addresses and W e b 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:

• 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 Keyword field, click Add Keyword, and then click Apply. Some examples of keyword application follow:

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

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

.gov) can be viewed.

• Enter a period (.) as to block all Internet browsing access. Up to 32 entries are supported in the Keyword list.

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 click Apply.

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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.

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 destinat ion 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 3-11 for more details.

To access the rules configuration of the modem router, select Firewall Rules on the main menu, and then click Add for either an outbound or inbound service. The Firewall Rules screen displays.

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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 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 inboun d 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 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.

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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 W eb ser ver 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. 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. See

“How to Define Services” on page 3-12.

• 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 Schedule screen.

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

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• 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 fill in 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 settings and action will be logged. – Not 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.

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 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

• 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 AOL or MSN Instant Messenger ports: see the Firewall Rules screen in the “Order of

Precedence for Rules” section on page 3-11.

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Figure 3-7

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 Add Custom Service button in the Services screen to add any additional services or applications that do not already appear.

• 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 Schedule screen.

• LAN Users. These settings determine which packets are covered by the rule, based on their source LAN 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.

• WAN Users. These settings determine 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.

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– 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.

Order of Precedence for Rules

As you define new rules, they are added to the tables in the Firewall Rules screen, as shown in the following figure:

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 pr oceeding to th e 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.

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The Firewall Rules screen also lets you easily open or close AOL or MSN Instant Messenger ports:

1. Under Instant Messaging (IM) Ports, select a radio button:

• Close IM Ports. Specifies to disable instant messaging traffic.

• Open IM Ports. Specifies to enable instant messaging traffic. IM ports are open by

default.

2. Click Apply to save your changes.

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 RFC1700, “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 create your own service definitions.

How to Define Services

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. Click Services below Security to display the Services screen shown in the following figure:

Figure 3-9

• To create a new service, click the Add Custom Service button.

• To edit an existing service, select its button on the left side of the table, and click Edit

Service.

• T o delete an existing service, select its button on the left side of the table, and click Delete

Service.

3. Use the screen shown here 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 the 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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How to Set Your Time Zone

To localize the time for your log entries, you must specify your time zone:

2. Click Schedule below Security to display the Schedule screen.

Figure 3-11

3. Select your time zone. This setting is used for the blocking schedule according to your local time zone and for time-stamping log entries.

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Select the Adjust for Daylight Savings Time check box if your time zone is currently in daylight savings time.

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 one hour to be added to the standard time.

4. The modem router has a list of NETGEAR NTP servers. If you would prefer to use a particular NTP server as the primary server, select the Use this NTP Server check box, and enter its IP address.

5. Click Apply to save your settings.

How to Schedule 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.

2. Click Schedule below Security to display the Schedule screen that is shown in Figure 3-11.

3. T o 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, or enter times in the Start Time and End

Time fields.

Note: 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.

4. 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 DGN2000 Wireless-N ADSL2+ Modem Router. This chapter includes:

• “Backing Up, Restoring, and Erasing Your Settings”

• “Upgrading the Wireless Modem Router’s Firmware” on page 4-3”

• “Network Management Information” on page 4-4”

• “Enabling Security Event E-mail Notification” on page 4-14”

• “Running Diagnostic Utilities and Rebooting the Wireless Modem Router” on page 4-15”

• “Configuring Remote Management” on page 4-16”

• “Automatic Firmware Recovery” on page 4-18”

Backing Up, Restoring, and Erasing Your Settings

The configuration settings of the modem router are stored in a configuration file. This file can be backed up to your computer, restored, or reverted to factory default settings. The following procedures explains how to do these tasks.

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

2. In the main menu, below Maintenance, select Backup Settings to display the following screen.

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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.

How to Restore the Configuration from a File

2. In the main menu, below Maintenance, select Backup Settings as shown in Figure 4-1.

3. Enter the full path to the file on your network, or click the Browse button to locate the file.

4. When you have located the .cfg file, click the Restore button to upload the file to the modem

router.

5. The modem router then reboots automatically.

How to Erase the Configuration

Sometimes you might want to restore the modem router to the factory default settings. This can be done by using the erase function.

1. To erase the configuration, select Backup Settings under Maintenance in the main menu, and click the Erase button on the screen.

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2. The modem router then reboots automatically. After an erase, the modem router’s password is password, the LAN IP address is 192.168.0.1,

and the modem router’s DHCP client is enabled.

Note: To restore the factory default configuration settings when you do not know the

login password or IP address, press the Wireless On/Off and WPS buttons on the side panel of the modem router simultaneously for 6 seconds.

Upgrading the Wireless Modem Router’s Firmware

The software of the modem router is stored in flash memory, and can be upgraded as NETGEAR releases new software.

Upgrade files can be downloaded from NETGEAR’s website. If the upgrade file is compressed (.zip file), you must first extract the binary (.bin or .img) file before uploading it to the modem router.

How to Upgrade the Wireless Modem Router Firmware

Note: 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 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.

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 and default password of password, or using whatever user name, password, and LAN address you have chosen for the modem router.

3. In the main menu, under Maintenance, select Router Upgrade to display the Firmware Upgrade screen.

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Figure 4-2

4. In the Firmware Upgrade screen, click Browse to locate the binary (.bin or .img) upgrade file.

5. Click Upload.

Note: 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. When the upload is complete, your modem router automatically restarts. The upgrade process typically takes about one minute. In some cases, you might need to clear the configuration and reconfigure the modem router after upgrading.

Network Management Information

The modem router provides a variety of status and usage information, which is discussed in the following sections.

Viewing the Wireless Modem Router Status and Usage Statistics

In the main menu, under Maintenance, select Router Status to display the Router Status screen.

Figure 4-3 displays the upper part of the Router Status screen; Figure 4-4 displays the lower part of

the Router Status screen.

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Figure 4-3

Figure 4-4

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The Router Status screen provides status and usage information, including the following settings.

Table 4 -1 . Route r Status Fields

Component Field Description

Account Name The host name that is assigned to the modem router in the Basic

Settings screen.

ADSL Port

LAN Port

Firmware Version

The ADSL port settings apply to the Internet (ADSL) port of the modem router. MAC Address This field displays the Ethernet MAC address being used by the

IP Address This field displays the IP address being used by the Internet (ADSL)

Network Type The network type depends upon your ISP. IP Subnet Mask This field displays the IP subnet mask being used by the Internet

Gateway IP Address

Domain Name Server

The LAN settings apply to the local port of the modem router.

This field displays the modem router firmware version.

Internet (ADSL) port of the modem router.

port of the modem router. If no address is shown, the modem router cannot connect to the Internet.

(ADSL) port of the modem router. IP address used as a gateway to the Internet for computers configured

to use DHCP. This field displays the DNS server IP addresses being used by the

modem router. These addresses are usually obtained dynamically from the ISP.

MAC Address This field displays the Ethernet MAC address being used by the local

(LAN) port of the modem router.

IP Address This field displays the IP address bei ng used by the local (LAN) port of

the modem router. The default is 192.168.0.1.

DHCP If Off, the modem router does not assign IP addresses to PCs on the

LAN. If On, the modem router does assign IP addresses to PCs on the LAN.

IP Subnet Mask This field displays the IP subnet mask being used by the local (LAN)

port of the modem router. The default is 255.255.255.0.

Modem

The modem settings apply to the ADSL modem of the router. ADSL Firmware

Version Modem Status The connection status of the modem.

The version of the firmware.

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Ta ble 4-1. Router Status Fields (continued)

Component Field Description Modem

(continued)

Wireless Port

WLAN2 Name (SSID) The wireless network name for WLAN2.

WLAN3 Name (SSID) The wireless network name for WLAN3.

WLAN4 Name (SSID) The wireless network name for WLAN4.

DownStream Connection Speed

UpStream Connection Speed

VPI The Virtual Path Identifier setting. VCI The Virtual Channel Identifier setting. The wireless port settings are specified in the Wireless Settings screen; see “Manually

Configuring Your Wireless Network” in Chapter 2 for details.

Name (SSID) The service set ID, also known as the wireless network name for

Region The country where the unit is set up for use. Channel The current channel, which determines the operating frequency. Wireless AP Indicates if the access point feature is enabled for WLAN1. If disabled,

Broadcast Name

Wireless AP Indicates if the access point feature is enabled for WLAN2. Broadcast

Name

Wireless AP Indicates if the access point feature is enabled for WLAN3. Broadcast

Name

Wireless AP Indicates if the access point feature is enabled for WLAN4. Broadcast

Name

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.

WLAN1.

the Wireless LED on the front panel is off. Indicates if the modem router is configured to broadcast its SSID for

WLAN1.

Indicates if the modem router is configured to broadcast its SSID for WLAN2.

Indicates if the modem router is configured to broadcast its SSID for WLAN3.

Indicates if the modem router is configured to broadcast its SSID for WLAN4.

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Click the Show Statistics button to display modem router usage statistics, as shown in the following screen.

Figure 4-5

This screen shows the following statistics:.

Ta ble 4-2. Router Statistics Fields

Field Description

WAN, LAN, or WLAN The statistics for the WAN (Internet), LAN (local), and wireless LAN (WLAN)

ports. For each port, the screen displays the following: Status The link status of the port. TxPkts The number of packets transmitted on this port since reset or manual clear. RxPkts Th e number of packets received on this port since reset or manual clear. Collisions The number of collisions on this port since reset or manual clear. Tx B/s The current line utilization—percentage of current bandwidth used on this port. Rx B/s The average line utilization for this port. Up Time The time elapsed since the last power cycle or reset.

ADSL Link Downstream or Upstream

Connection Speed Typically, the downstream speed is faster than the upstream speed.

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The statistics for the upstream and downstream ADSL link. These statistics will be

of interest to your technical support representative if you are having problems

obtaining or maintaining a connection.

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Ta ble 4-2. Router Statistics Fields (continued)

Field Description

Line Attenuation The li n e at te n ua ti o n i ncreases the further you are physically located fr om your

ISP’s facilities. Noise Margin This is the signal-to-noise ratio and is a measure of the quality of the signal on the

line.

Poll Interval S pecifies the interval at which the statistics are updated in this window . Click Stop

to freeze the display .

Click the Connection Status button to display modem router connection status, as shown in the following screen.

Figure 4-6

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This screen shows the following statistics:

Table 4-3. Connection Status Fields (PPPoE Network Type Example)

Field Description

Connection Time The time elapsed since the last connection to the Internet through the ADSL port. Connecting to

sender Negotiation Success or Failed. Authentication Success or Failed. Obtaining IP

Address Obtaining Network

Mask

The connection status.

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. In the main menu, under Maintenance, select Attached Devi ce s to view the table, shown in the following screen.

Figure 4-7

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 screen.

Figure 4-8

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Log entries are described in the following table.

Table 4-4. Security Log Entry Descriptions

Field Description

Date and time The date and time the log entry was recorded. Description or

action Source IP The IP address of the initiating device for this log entry. Source port and

interface Destination The name or IP address of the destination device or website. Destination port and

interface

The type of event and what action was taken, if any.

The service port number of the initiating device, and whether it originated from the LAN or WAN.

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. Security Log Action Buttons

Field Description

Refresh Refresh the log screen. Clear Log Clear the log entries. Send Log E-mail the log immediately. Apply Apply the current settings. Cancel Clea r th e cu rrent settings.

Selecting What Information to Log

Besides the standard information that is listed in the previous two tables, you can choose to log additional information. Those optional selections are as follows:

• Attempted access to blocked sites

• Connections to the Web-based interface of the modem router

• Router operation (start up, get time, and so on).

• Known DoS attacks and port scans

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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 Broadcast on LAN, or enter the IP address of the server where the syslog file will be written.

Examples of Log Messages

Following are examples of log messages. In all cases, the log entry shows the time stamp as day, year-month-date hour:minute:second.

Activation and Administration

Tue, 2006-05-21 18:48:39 - NETGEAR activated

[This entry indicates a power-up or reboot with initial time entry.]

Tue, 2006-05-21 18:55:00 - Administrator login successful IP:192.168.0.2 Thu, 2006-05-21 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, 2006-05-21 19:00:06 - Login screen timed out - IP:192.168.0.2

[This entry shows a time-out of the administrator login.]

Wed, 2006-05-22 22:00:19 - Log emailed

[This entry shows when the log was e-mailed.]

Dropped Packets

Wed, 2006-05-22 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, 2006-05-22 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, 2006-05-22 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, a User Datagram Protocol (UDP) packet (port 6970), and an 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 rec eive logs and alerts by e-mail, you must provide your e-mail information in the E-mail screen and specify which alerts you would like to receive and how often. In the main menu, under Security, select E-mail. The E-mail screen displays.

Figure 4-9

The E-mail screen allows you to make the following selections:

• Turn E-mail Notification On. Select this check box if you want to receive e-mail logs and

alerts from the modem router.

• Send To This E-mail Address. Enter the e-mail address to which logs and alerts are sent. This

e-mail address will also be used as the From address. If you leave this field blank, log and alert messages are not via e-mail.

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• Outgoing Mail Server. Enter the name or IP address of your ISP’s outgoing (SMTP) mail

server (such as mail.myISP.com). You might be able to find this information in the configuration settings of your e-mail program. Enter the e-mail address to which logs and alerts are sent. This e-mail address is also used as the From address. If you leave this field blank, log and alert messages are not sent by e-mail.

• My Mail Server requires authentication.If you use an outgoing mail server provided by

your current ISP, you do not need to select this field. If you use an e-mail account that is not provided by your ISP, select this field, and enter the required user name and password information.

• Send E-Mail alerts 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 Wireless 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.

• 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.

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• Reboot the modem router to enable new network configurations to take effect or to clear problems with the modem router’s network connection.

In the main menu, under Maintenance, select Diagnostics to display the following screen.

Figure 4-10

Configuring 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.

Note: Be sure to change the modem router’s default password to a very secure password.

The ideal password should contain no dictionary words from an y 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.

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To configure remote management:

2. Under Advanced in the main menu, select Remote Management to display the following screen.

Figure 4-11

3. Select the Turn Remote Management On check box.

4. Specify what 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.

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5. Specify the port number that will be used for accessing the management interface. Web browser access usually 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. When accessing your modem router from the Internet, you will type your modem router’s

WAN IP address in your browser’s Address 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 the following in your browser:

http://134.177.0.123:8080

Note: In this case, the http:// must be included in the address.

Automatic Firmware Recovery

Should the firmware become corrupted, the modem router automatica lly detects this situation and opens the following screen to enable you to recover the firmware.

Figure 4-12

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To recover the firmware:

1. If you already have the firmware file on your PC, go directly to step 2. If you do not have the firmware file on your PC, obtain the firmware from the NETGEAR support site at

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

2. Click Browse.

3. Navigate to the firmware file. (If you used the Setup CD, recovery firmware is located in the

C:\Netgear directory.)

4. Click Upgrade.

5. The recovery process takes about 5 minutes. Wait for the progress bar to complete. After the

firmware recovery is complete, the login screen for the Smart Wizard displays, allowing you to log in to the modem router to check its status.

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Chapter 5

Advanced Configuration

This chapter describes how to configure the advanced features of your DGN2000 Wireless-N ADSL2+ Modem Router.

Configuring Advanced Security

The modem router provides a variety of advanced features, which are described in the following sections:

• “Setting Up a Default DMZ Server” on page 5-2”

• “Connecting Automatically, as Required” on page 5-3”

• “Disabling Port Scan and DOS Protection” on page 5-3”

• “Responding to a Ping on an Internet WAN Port” on page 5-4”

• “Setting the MTU Size” on page 5-4”

• “Disabling the SIP ALG” on page 5-4”

• “Configuring LAN IP Settings” on page 5-4”

• “Configuring DHCP” on page 5-6”

• “Configuring LAN TCP/IP Settings” on page 5-8”

• “Configuring Dynamic DNS” on page 5-9”

• “Using Static Routes” on page 5-10”

• “How to Configure Universal Plug and Play” on page 5-13”

• “Building Wireless Bridging and Repeating Networks” on page 5-14”

• “Displaying and Configuring Advanced WPS Settings” on page 5-20”

These features are discussed in the following sections.

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Setting Up a Default DMZ Server

The default demilitarized zone (DMZ) server feature is helpful when you use 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 correctly with them, but there are other applications that might not function well. In some cases, one local computer can run the application correctly if that computer’s IP address is entered as the default DMZ server.

Note: 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.

Incoming traffic from the Internet is usually 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.

How to Configure a Default DMZ Server

To assign a computer or server to be a default DMZ server:

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2. In the main menu, under Advanced, click WAN Setup to display the following screen.

Figure 5-1

3. Select the Default DMZ Server check box.

4. Type the IP address for that server.

5. Click Apply to save your changes.

Other WAN Options

The WAN Setup screen that is shown in Figure 5-1 also allows you perform the following tasks:

• Connecting Automatically, as Required Usually, this option should be enabled, 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 this setting is disabled, you must connect manually, using the screen that you access by clicking the Connection Status button on the Status screen.

If you have an Always on connection, this setting has no effect.

• Disabling Port Scan and DOS Protection

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The firewall protects your LAN against port scans and denial of service (DOS) attacks. This protection should be disabled only in special circumstances.

• Responding to a Ping on an Internet WAN Port If you want the modem router to respond to a ping from the Internet, select the Respond to

Ping on Internet WAN Port 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.

• Setting the MTU Size 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. But this is rarely required, and should not be done unless you are sure it is necessary for your ISP connection.

• Disabling the SIP ALG The Session Initiation Protocol (SIP) Application Level Gateway (ALG) is enabled by default

to optimize VoIP phone calls that use the SIP. The Disable SIP ALG check box allows you to disable the SIP ALG. Disabling the SIP ALG might be useful when running certain applications.

Configuring LAN IP Settings

The LAN IP Setup screen allows configuration of LAN IP services such as DHCP and RIP. 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’s default LAN IP configuration is as follows:

• LAN IP address. 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 by opening the LAN IP Setup menu.

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Under Advanced in the main menu, select LAN IP Setup.

Figure 5-2

The LAN TCP/IP Setup settings are:

• IP Address. This is the LAN IP address of the modem router.

• IP Subnet Mask. This is 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 Direction. Rou ter Information Protocol (RIP) allows a modem ro uter to exchange routing information with other routers. The RIP Direction selection controls how the modem router sends and receives RIP packets. Both is the default setting.

– When set to Both or Out Only, the modem router broadcasts its routing table periodically. – When set to Both or In Only, the modem router incorporates the RIP information that it

receives.

– When set to None, the modem router does not send any RIP packets and ignores any RIP

packets received.

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• RIP Version. This controls the format and the broadc asting method of the RIP packets that the modem router sends. It recognizes both formats when receiving. By default, this is set for RIP-1.

– RIP-1. This version is universally supported. RIP-1 is probably adequate for most

networks, unless you have an unusual network setup.

– RIP-2. This version carries more information. Both RIP-2B and RIP -2M send the routi ng

data in RIP-2 format.

• RIP-2B. This version uses subnet broadcasting.

• RIP-2M. This version uses multicasting.

• Access Router Management Interface on additional port. When NAT is disabled, the modem router’s management interface may be accessed at the modem router’s LAN address using the port number you enter. This feature is not available when NAT is enabled.

Note: If you change the LAN IP address of the modem router while connected through

the browser, you will be disconnected. You must then open a new connection to the new IP address and log in again.

Configuring DHCP

By default, the modem router functions as a Dynamic Host Configuration Protoco l (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 router. IP addresses are 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 router are satisfactory. See the online document that you can access from “TCP/IP Networking Basics” in Appendix B 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. Otherwise, leave it selected.

Specify the pool of IP addresses to be assigned by setting the starting IP address and ending IP address. These addresses should be part of the same IP address subnet as the 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.

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The router delivers the following settings 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

• WINS server, short for 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.

How to Configure Reserved IP Addresses

When you specify a reserved IP address for a computer on the LAN, that computer will always receives the same IP address each time it access the router’s DHCP server. Reserved IP addresses should be assigned to servers that require permanent IP settings.

To res erve an IP address:

1. In the LAN IP Setup screen, 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 already present on your network, you can copy its MAC

address from the Attached Devices screen and paste it here.

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.

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To edit or delete a res erved address entry:

1. Click the button next to the reserved address that you want to edit or delete.

2. Click Edit or Delete.

Configuring LAN TCP/IP Settings

1. Log in to the 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 router.

2. In the main menu, under Advanced, click LAN IP Setup to display the following screen.

Figure 5-3

3. Enter the TCP/IP, DHCP, or reserved IP settings.

4. Click Apply to save your changes.

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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 that will allow you to register your domain to their IP address, and will forward traffic directed at your domain to your frequently changing IP address.

The 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 router, whenever your ISP-assigned IP address changes, your router automatically contacts your Dynamic DNS service provider, logs in to your account, and registers your new IP address.

How to Configure Dynamic DNS

2. In the main menu, under Advanced, select Dynamic DNS to display the following screen.

Figure 5-4

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. For example, for dyndns.or g, go

to www.dyndns.org.

4. Select the Use a dynamic DNS Service check box.

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5. Select the name of your Dynamic DNS service provider.

6. Type the host name that your Dynamic DNS service provider gave you. The Dynamic DNS

service provider might call this the domain name. If your URL is myName.dyndns.org, then your host name is myName.

7. Type the user name for your Dynamic DNS account.

8. Type the password (or key) for your Dy namic DNS account.

9. 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 causes *.yourhost.dyndns.org to be aliased to the same IP address as yourhost.dyndns.org.

10. Click Apply to save your configuration.

Note: 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.

Using Static Routes

Static routes provide additional routing information to your router. Under normal circumstances, the 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 address 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

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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.

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 setup would look like Figure 5-6.

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 field specifies that all traffic for these addresses should be forwarded to the ISDN router at 192.168.0.100.

• The value in the Metric field represents the number of routers between your network and the destination. This is a direct connection, so it can be set to the minimum value of 2.

•The Private check box is selected only as a precautionary security measure in case RIP is activated.

How to Configure Static Routes

2. In the main menu, under Advanced, select Static Routes to display the Static Routes table.

Figure 5-5

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3. To add a static route: a. Click Add to open the following Static Routes screen.

Figure 5-6

b. Enter a route name for this static route in the Route Name field. This name is for

identification purpose only.

c. Select Private if you want to limit access to the LAN only. The static route will not be

reported in RIP.

d. Select Active to make this route effective. e. Enter the destination IP address of the final destination. f. Enter the IP subnet mask for this destination. If the destination is a single host, type

255.255.255.255.

g. Enter the gateway IP address, which must be a router on the same LAN segment as the

router.

h. Enter a number between 2 and 15 as the metric value in the Metric field. This represents

the number of routers between your network and the destination. Usually, a setting of 2 or 3 works.

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4. Click Apply. The Static Routes table is updated to show the new entry.

Figure 5-7

How to Configure Universal Plug and Play

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.

1. Select UPnP on the main menu to display the UPnP screen:

Figure 5-8

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2. Fill in the settings on the UPnP screen:

• T urn UPnP On. UPnP can be enabled or disabled for automatic device configuration. The

default setting for UPnP is enabled. If UPnp is disabled, the modem router does 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 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. The UPnP Portmap Table also displays what type of port is opened and if that port is still active for each IP address.

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.

• Click Refresh to update the portmap table and to show the active ports that are currently

opened by UPnP devices.

Building Wireless Bridging and Repeating Networks

With the DGN2000 modem router, you can build large bridged wireless networks that form an IEEE 802.11n Wireless Distribution System (WDS). Using the modem router with other access points (APs) and wireless devices, you can connect clients by using their MAC addresses rather than by specifying IP addresses.

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Here are some examples of wireless bridged configurations:

• Point-to-point bridge. The modem router communicates with another bridge-mode wireless station. See “How to Configure a Point-to-Point Bridge Configuration.”

• Multi-point bridge. The modem router is the “master” for a gro up of bridg e-mode wireless stations. Then all traffic is sent to this master, rather than to other access points. See “How to

Configure a Multi-Point Bridge.”

• Repeater with wireless client association. Sends all traffic to the remote access point. See

“How to Configure a Repeater with Wireless Client Association.”

Note: The wireless bridging and repeating feature uses the default security profile to send

and receive traffic.

To view or change these configurations, select Advanced Wireless Settings from the main menu:

Figure 5-9

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How to Configure a Point-to-Point Bridge Configuration

In point-to-point bridge mode, the DGN2000 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 access points (APs) are in

point-to-point bridge mode.

AP 1 (DGN2000 modem router)

Internet

192.168.0.1

PC’s

AP 2

Switch or hub

LAN Segment 1

Figure 5-10

LAN Segment 2

PC’s

To set up a point-to-point bridge configuration (shown in Figure 5-10):

1. Configure the DGN2000 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 DGN2000 modem router must have AP 2’s MAC address in its Remo te MA C Address

field, and AP 2 must have the DGN2000’s MAC address in its Remote MAC Address field.

3. Configure both APs and verify that both APs are using he 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.

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NETGEAR DGN2000 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Contents

About This Manual

Who Should Use This Book

How to Use This Book

Conventions, Formats and Scope

How to Use This Manual

How to Print this Manual

Revision History

Using the Setup Manual

What You Need before You Begin

Logging In to the Wireless Modem Router

Auto-detecting Your Internet Connection

Viewing or Manually Configuring Your ISP Settings

Understanding the Basic Settings Screen

ADSL Settings

How the Internet Connection Works

Planning Your Wireless Network

Wireless Placement and Range Guidelines

Wireless Security Options

Manually Configuring Your Wireless Network

Manually Configuring Your Wireless Security

Restricting Wireless Access to Your Network

Turning off wireless connectivity completely

Hiding your wireless network name (SSID)

Restricting access by MAC address

Configuring Mixed WPA-PSK+WPA2-PSK Security

Choosing Alternative Authentication and Encryption Methods

Configuring WEP

Configuring WPA-802.1x

Using Push 'N' Connect (WPS) to Configure Your Wireless Network and Security

Connecting Additional Wireless Client Devices After WPS Setup

Protecting Access to Your Wireless Modem Router

How to Change the Built-In Password

Changing the Administrator Login Time-out

Configuring Basic Firewall Services

Blocking Keywords, Sites, and Services

How to Block Keywords and Sites

Firewall Rules

Inbound Rules (Port Forwarding)

Inbound Rule Example: A Local Public Web Server

Inbound Rule Example: Allowing Video conferencing

Considerations for Inbound Rules

Outbound Rules (Service Blocking)

Outbound Rule Example: Blocking Instant Messenger

Order of Precedence for Rules

Services

How to Define Services

Setting Times and Scheduling Firewall Services

How to Set Your Time Zone

How to Schedule Firewall Services

Backing Up, Restoring, and Erasing Your Settings

How to Back Up the Configuration to a File

How to Restore the Configuration from a File

How to Erase the Configuration

Upgrading the Wireless Modem Router’s Firmware

How to Upgrade the Wireless Modem Router Firmware

Network Management Information

Viewing the Wireless Modem Router Status and Usage Statistics

Viewing Attached Devices

Viewing, Selecting, and Saving Logged Information

Selecting What Information to Log

Saving Log Files on a Server

Examples of Log Messages

Activation and Administration

Dropped Packets

Enabling Security Event E-mail Notification

Running Diagnostic Utilities and Rebooting the Wireless Modem Router

Configuring Remote Management

Automatic Firmware Recovery

Configuring Advanced Security

Setting Up a Default DMZ Server

How to Configure a Default DMZ Server

Other WAN Options

Configuring LAN IP Settings

Configuring DHCP

Use Router as DHCP Server