v1.0, July 2008

vi

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

Wireless-N ADSL2+ Modem Router DGN2000 Reference Manual

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v1.0, July 2008

Contents

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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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