NETGEAR DG824M - 802.11b Wireless ADSL Modem User manual

SM-DG824MNA-1
July 2003
NETGEAR, Inc.
4500 Great America Parkway
Santa Clara, CA 95054 USA
Phone 1-888-NETGEAR
Reference Manual for the
Model DG824M Wireless
ADSL Modem Gateway

ii
© 2003 by NETGEAR, Inc. All rights reserved. May 2003.
Trademarks
NETGEAR is a trademark of Netgear, Inc.
Microsoft, Windows, and Windows NT are registered trademarks of Microsoft Corporation.
Other brand and product names are registered trademarks or trademarks of their respective holders.
Statement of Conditions
In the interest of improving internal design, operational function, and/or reliability, NETGEAR reserves the right to
make changes to the products described in this document without notice.
NETGEAR does not assume any liability that may occur due to the use or application of the product(s) or circuit
layout(s) described herein.
Federal Communications Commission (FCC) Compliance Notice: Radio Frequency Notice
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to
part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and
used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to
radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try
to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
Federal Communications Commission (FCC) Radiation Exposure Statement
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. In order to avoid
the possibility of exceeding the FCC radio frequency exposure limits, human proximity to the antenna shall not be less
than 20 cm (8 inches) during normal operation.
EN 55 022 Declaration of Conformance
This is to certify that the DG824M Wireless ADSL Modem Gateway is shielded against the generation of radio
interference in accordance with the application of Council Directive 89/336/EEC, Article 4a. Conformity is declared by
the application of EN 55 022 Class B (CISPR 22).

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Bestätigung des Herstellers/Importeurs
Es wird hiermit bestätigt, daß das DG824M Wireless ADSL Modem Gateway gemäß der im BMPT-AmtsblVfg 243/
1991 und Vfg 46/1992 aufgeführten Bestimmungen entstört ist. Das vorschriftsmäßige Betreiben einiger Geräte (z.B.
Testsender) kann jedoch gewissen Beschränkungen unterliegen. Lesen Sie dazu bitte die Anmerkungen in der
Betriebsanleitung.
Das Bundesamt für Zulassungen in der Telekommunikation wurde davon unterrichtet, daß dieses Gerät auf den Markt
gebracht wurde und es ist berechtigt, die Serie auf die Erfüllung der Vorschriften hin zu überprüfen.
Certificate of the Manufacturer/Importer
It is hereby certified that the DG824M Wireless ADSL Modem Gateway has been suppressed in accordance with the
conditions set out in the BMPT-AmtsblVfg 243/1991 and Vfg 46/1992. The operation of some equipment (for example,
test transmitters) in accordance with the regulations may, however, be subject to certain restrictions. Please refer to the
notes in the operating instructions.
Federal Office for Telecommunications Approvals has been notified of the placing of this equipment on the market
and has been granted the right to test the series for compliance with the regulations.
Voluntary Control Council for Interference (VCCI) Statement
This equipment is in the second category (information equipment to be used in a residential area or an adjacent area
thereto) and conforms to the standards set by the Voluntary Control Council for Interference by Data Processing
Equipment and Electronic Office Machines aimed at preventing radio interference in such residential areas.
When used near a radio or TV receiver, it may become the cause of radio interference.
Read instructions for correct handling.
Customer Support
Refer to the Support Information Card that shipped with your DG824M Wireless ADSL Modem Gateway.
World Wide Web
NETGEAR maintains a World Wide Web home page that you can access at the universal resource locator (URL)
http://www.netgear.com. A direct connection to the Internet and a Web browser such as Internet Explorer
or Netscape are required.

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Contents v
Contents
Chapter 1
About This Guide
Audience .........................................................................................................................1-1
Scope .............................................................................................................................1-1
Typographical Conventions ............................................................................................1-2
Special Message Formats ..............................................................................................1-2
How to Use the HTML Version of this Manual ................................................................1-3
How to Print this Manual .................................................................................................1-4
Chapter 2
Introduction
About the Gateway .........................................................................................................2-1
Key Features ..................................................................................................................2-1
802.11b Standards-based Wireless Networking ......................................................2-2
A Powerful, True Firewall .........................................................................................2-2
Content Filtering .......................................................................................................2-3
Auto Sensing and Auto Uplink™ LAN Ethernet Connections ..................................2-3
Protocol Support ......................................................................................................2-3
Easy Installation and Management ..........................................................................2-4
What’s in the Box? ..........................................................................................................2-5
The Gateway’s Front Panel ......................................................................................2-6
The Gateway’s Rear Panel ......................................................................................2-7
Chapter 3
Connecting the Gateway to the Internet
What You Will Need Before You Begin ...........................................................................3-1
ADSL Microfilter Requirements ................................................................................3-1
ADSL Microfilter .................................................................................................3-1
ADSL Microfilter with Built-In Splitter .................................................................3-2
Ethernet Cabling Requirements ...............................................................................3-2
Computer Hardware Requirements .........................................................................3-2

vi Contents
LAN Configuration Requirements ............................................................................3-2
Internet Configuration Requirements .......................................................................3-3
Where Do I Get the Internet Configuration Parameters? .........................................3-3
Record Your Internet Connection Information ..........................................................3-4
Connecting the DG824M to Your LAN ............................................................................3-5
How to Connect the Gateway ..................................................................................3-5
Connecting the DG824M to the Internet .........................................................................3-9
Auto-Detecting Your Internet Connection Type ........................................................3-9
Wizard-Detected PPPoE Login Account Setup ......................................................3-10
Wizard-Detected PPPoA Login Account Setup ......................................................3-12
Wizard-Detected Dynamic IP Account Setup .........................................................3-14
Wizard-Detected IP Over ATM Account Setup ......................................................3-15
Wizard-Detected Fixed IP (Static) Account Setup ..................................................3-16
Testing Your Internet Connection ..................................................................................3-17
Manually Configuring Your Internet Connection ...........................................................3-18
Manual Configuration .............................................................................................3-19
Chapter 4
Wireless Configuration
Considerations for a Wireless Network ..........................................................................4-1
Observe Performance, Placement, and Range Guidelines .....................................4-1
Implement Appropriate Wireless Security ................................................................4-2
Understanding Wireless Settings ...................................................................................4-3
How to Set Up and Test Basic Wireless Connectivity ..............................................4-4
Restricting Wireless Access to Your Network ..........................................................4-5
Restricting Access to Your Network by Turning Off Wireless Connectivity ........4-6
Restricting Wireless Access Based on the Wireless Network Name (SSID) .....4-6
Restricting Wireless Access Based on the Trusted PCs List .............................4-6
Choosing WEP Authentication and Security Encryption Methods ...........................4-8
Authentication Type Selection ...........................................................................4-8
Encryption Choices ............................................................................................4-9
How to Configure WEP ............................................................................................4-9
Chapter 5
Protecting Your Network
Protecting Access to Your DG824M Wireless ADSL Modem Gateway ..........................5-1
How to Change the Built-In Password .....................................................................5-1

Contents vii
Changing the Administrator Login Timeout ..............................................................5-2
Configuring Basic Firewall Services ...............................................................................5-2
Blocking Keywords, Sites, and Services ..................................................................5-3
How to Block Keywords and Sites ...........................................................................5-3
Rules ..............................................................................................................................5-5
Inbound Rules (Port Forwarding) .............................................................................5-7
Inbound Rule Example: A Local Public Web Server ..........................................5-7
Inbound Rule Example: Allowing Videoconferencing ........................................5-9
Considerations for Inbound Rules .....................................................................5-9
Outbound Rules (Service Blocking) .......................................................................5-10
Outbound Rule Example: Blocking Instant Messenger ...................................5-10
Order of Precedence for Rules ..............................................................................5-12
Services ........................................................................................................................5-13
How to Define Services ..........................................................................................5-13
Setting Times and Scheduling Firewall Services ..........................................................5-14
How to Set Your Time Zone ...................................................................................5-14
How to Schedule Firewall Services ........................................................................5-16
Chapter 6
Managing Your Network
Backing Up, Restoring, or Erasing Your Settings ...........................................................6-1
How to Back Up the Configuration to a File .............................................................6-1
How to Restore a Configuration from a File .............................................................6-2
How to Erase the Configuration ...............................................................................6-2
Upgrading the Gateway’s Firmware ...............................................................................6-2
How to Upgrade the Gateway Firmware ..................................................................6-3
Network Management Information .................................................................................6-4
Viewing Gateway Status and Usage Statistics .........................................................6-4
Viewing Attached Devices ........................................................................................6-8
Viewing, Selecting, and Saving Logged Information ................................................6-8
Selecting What Information to Log ..................................................................6-10
Saving Log Files on a Server .......................................................................... 6-11
Examples of log messages .................................................................................... 6-11
Activation and Administration .......................................................................... 6-11
Dropped Packets ............................................................................................. 6-11
Enabling Security Event E-mail Notification .................................................................6-12

viii Contents
Running Diagnostic Utilities and Rebooting the Router ................................................6-13
Enabling Remote Management ....................................................................................6-14
Configure Remote Management ............................................................................6-14
Chapter 7
Advanced Configuration
Configuring Advanced Security ......................................................................................7-1
Setting Up A Default DMZ Server ............................................................................7-1
How to Configure a Default DMZ Server. .................................................................7-2
Respond to Ping on Internet WAN Port ...................................................................7-2
Configuring LAN IP Settings ...........................................................................................7-2
DHCP .......................................................................................................................7-5
Use Gateway as DHCP server ..........................................................................7-5
Reserved IP addresses .....................................................................................7-6
How to Configure LAN TCP/IP Settings ...................................................................7-6
Configuring Dynamic DNS .......................................................................................7-7
How to Configure Dynamic DNS ..............................................................................7-8
Using Static Routes ........................................................................................................7-9
Static Route Example ...............................................................................................7-9
How to Configure Static Routes .............................................................................7-10
Chapter 8
Troubleshooting
Basic Functioning ...........................................................................................................8-1
Power LED Not On ...................................................................................................8-2
Test LED Never Turns On or Test LED Stays On .....................................................8-2
LAN or WAN Port LEDs Not On ...............................................................................8-2
Troubleshooting the Web Configuration Interface ..........................................................8-3
Troubleshooting the ISP Connection ..............................................................................8-4
ADSL link .................................................................................................................8-4
WAN LED Blinking Yellow ..................................................................................8-4
WAN LED Off .....................................................................................................8-4
Obtaining a WAN IP Address ...................................................................................8-5
Troubleshooting PPPoE or PPPoA ..........................................................................8-6
Troubleshooting Internet Browsing ..........................................................................8-6
Troubleshooting a TCP/IP Network Using the Ping Utility ..............................................8-7
Testing the LAN Path to Your Router .......................................................................8-7

Contents ix
Testing the Path from Your PC to a Remote Device ................................................8-8
Restoring the Default Configuration and Password ........................................................8-8
Using the Default Reset button ................................................................................8-9
Problems with Date and Time .........................................................................................8-9
Appendix A
Technical Specifications
Appendix B
Network and Routing Basics
Related Publications ...................................................................................................... B-1
Basic Router Concepts .................................................................................................. B-1
What is a Router? ................................................................................................... B-2
Routing Information Protocol ................................................................................... B-2
IP Addresses and the Internet ................................................................................. B-2
Netmask .................................................................................................................. B-4
Subnet Addressing .................................................................................................. B-5
Private IP Addresses ............................................................................................... B-7
Single IP Address Operation Using NAT ................................................................. B-8
MAC Addresses and Address Resolution Protocol ................................................. B-9
Related Documents ................................................................................................. B-9
Domain Name Server ............................................................................................ B-10
IP Configuration by DHCP .................................................................................... B-10
Internet Security and Firewalls .................................................................................... B-10
What is a Firewall? .................................................................................................B-11
Stateful Packet Inspection ......................................................................................B-11
Denial of Service Attack .........................................................................................B-11
Ethernet Cabling ...........................................................................................................B-11
Category 5 Cable Quality ...................................................................................... B-12
Inside Twisted Pair Cables .................................................................................... B-13
Uplink Switches, Crossover Cables, and MDI/MDIX Switching ............................ B-14
Appendix C
Preparing Your Network
Preparing Your Computers for TCP/IP Networking ....................................................... C-1
Configuring Windows 95, 98, and Me for TCP/IP Networking ....................................... C-2
Install or Verify Windows Networking Components ................................................. C-2
Enabling DHCP to Automatically Configure TCP/IP Settings in Windows 95B, 98, and Me
C-4

xContents
Selecting Windows’ Internet Access Method .......................................................... C-6
Verifying TCP/IP Properties .................................................................................... C-6
Configuring Windows NT4, 2000 or XP for IP Networking ............................................ C-7
Install or Verify Windows Networking Components ................................................. C-7
DHCP Configuration of TCP/IP in Windows XP, 2000, or NT4 ............................... C-8
DHCP Configuration of TCP/IP in Windows XP ..................................................... C-8
DHCP Configuration of TCP/IP in Windows 2000 ................................................ C-10
DHCP Configuration of TCP/IP in Windows NT4 .................................................. C-13
Verifying TCP/IP Properties for Windows XP, 2000, and NT4 .............................. C-15
Configuring the Macintosh for TCP/IP Networking ...................................................... C-16
MacOS 8.6 or 9.x .................................................................................................. C-16
MacOS X ............................................................................................................... C-16
Verifying TCP/IP Properties for Macintosh Computers ......................................... C-17
Verifying the Readiness of Your Internet Account ....................................................... C-18
Are Login Protocols Used? ................................................................................... C-18
What Is Your Configuration Information? .............................................................. C-18
Obtaining ISP Configuration Information for Windows Computers ....................... C-19
Obtaining ISP Configuration Information for Macintosh Computers ..................... C-20
Restarting the Network ................................................................................................ C-21
Appendix D
Wireless Networking Basics
Wireless Networking Overview ...................................................................................... D-1
Infrastructure Mode ................................................................................................. D-1
Ad Hoc Mode (Peer-to-Peer Workgroup) ................................................................ D-2
Network Name: Extended Service Set Identification (ESSID) ................................ D-2
Authentication and WEP ................................................................................................ D-3
802.11b Authentication ............................................................................................ D-3
Open System Authentication ................................................................................... D-4
Shared Key Authentication ...................................................................................... D-4
Overview of WEP Parameters ................................................................................ D-5
Key Size .................................................................................................................. D-6
WEP Configuration Options .................................................................................... D-7
Wireless Channels ......................................................................................................... D-7
Glossary
Index

About This Guide 1
Chapter 1
About This Guide
Thank you for purchasing the NETGEAR™DG824M Wireless ADSL Modem Gateway.
Audience, Conventions, Scope
This reference manual assumes that the reader has basic-to-intermediate computer and Internet
skills. However, basic computer network, Internet, firewall, and networking technology tutorial
information is provided in the Appendices.
This guide uses the following typographical conventions:
This manual is written for the DG824M wireless gateway according to these specifications.:
Table 1. Typographical conventions
italics Emphasis, books, CDs, URL names
bold times roman User input
courier font Screen text, file and server names, extensions, commands, IP addresses
Note: This format is used to highlight information of importance or special interest.
Table 1-1. Manual Specifications
Product Version DG824M Wireless ADSL Modem Gateway
Manual Publication Date July 2003
Note: Product updates are available on the NETGEAR, Inc. web site at http://
www.netgear.com/support/main.asp. Documentation updates are available on the
NETGEAR, Inc. web site at http://www.netgear.com/docs.

Reference Manual for the Model DG824M Wireless ADSL Modem Gateway
2About This Guide
How to Use this Manual
The HTML version of this manual includes these features.
Figure 1 -1: HTML version of this manual
1. Left pane. Use the left pane to view the Contents, Index, Search, and Favorites tabs.
To view the HTML version of the manual, you must have a version 4 or later browser with
Java or JavaScript enabled. To use the Favorites feature, your browser must be set to accept
cookies. You can record a list of favorite pages in the manual for easy later retrieval.
2. Toolbar buttons. Use the toolbar buttons across the top to navigate, print pages, and more.
–TheShow in Contents button locates the currently displayed topic in the Contents tab.
–Previous/Next buttons display the topic that precedes or follows the current topic.
–ThePDF button links to a PDF version of the full manual.
–TheE-mail button enables you to send feedback by e-mail to Netgear support.
–ThePrint button prints the currently displayed topic. Using this button when a
step-by-step procedure is displayed will send the entire procedure to your printer--you do
not have to worry about specifying the correct range of pages.
–TheBookmark button bookmarks the currently displayed page in your browser.
3. Right pane. Use the right pane to view the contents of the manual. Also, each page of the
manual includes a “PDF of This Chapter” link at the top right which links to a PDF file
containing just the currently selected chapter of the manual.
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3

Reference Manual for the Model DG824M Wireless ADSL Modem Gateway
About This Guide 3
How to Print this Manual
To print this manual you man choose one of the following several options, according to your
needs.
•Printing a “How To” Sequence of Steps in the HTML View. Use the Print button on the
upper right of the toolbar to print the currently displayed topic. Using this button when a
step-by-step procedure is displayed will send the entire procedure to your printer--you do not
have to worry about specifying the correct range of pages.
•Printing a Chapter. Use the “PDF of This Chapter” link at the top right of any page.
– Click “PDF of This Chapter” link at the top right of any page in the chapter you want to
print. A new browser window opens showing the PDF version of the chapter you were
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– Click the print icon in the upper left of the window.
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•Printing the Full Manual. Use the PDF button in the toolbar at the top right of the browser
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– Click PDF button. A new browser window opens showing the PDF version of the chapter
you were viewing.
– Click the print icon in the upper left of the window.
–Tip: If your printer supports printing two pages on a single sheet of paper, you can save
paper an printer ink by selecting this feature.

Introduction 2-1
Chapter 2
Introduction
This chapter describes the features of the NETGEAR DG824M Wireless ADSL Modem Gateway.
The DG824M wireless gateway is a combination of a built-in ADSL modem, router, 4-port switch,
and firewall which enables your entire network to safely share an Internet connection that
otherwise is used by a single PC.
About the Gateway
The DG824M Wireless ADSL Modem Gateway provides continuous, high-speed 11 Mbps access
between your wireless and Ethernet devices. The DG824M wireless gateway enables your entire
network to share an Internet connection through the built-in ADSL modem that otherwise is used
by a single PC. With minimum setup, you can install and use the gateway within minutes.
The DG824M wireless gateway provides multiple Web content filtering options, plus e-mail
browsing activity reporting and instant alerts. Parents and network administrators can establish
restricted access policies based on time-of-day, website addresses and address keywords, and share
high-speed ADSL Internet access for up to 253 personal computers. The included firewall and
Network Address Translation (NAT) features protect you from hackers.
Key Features
The DG824M wireless gateway provides the following features:
• A Powerful, True Firewall
• 802.11b Standards-based wireless networking
• Content Filtering
Note: If you are unfamiliar with networking and routing, refer to Appendix B, “Network
and Routing Basics,” to become more familiar with the terms and procedures used in this
manual.

Reference Manual for the Model DG824M Wireless ADSL Modem Gateway
2-2 Introduction
• Auto Sensing and Auto Uplink™ LAN Ethernet Connections
• Extensive Internet Protocol Support
• Easy, web-based setup for installation and management
• A built-in ADSL modem
These features are discussed below.
802.11b Standards-based Wireless Networking
The DG824M wireless gateway includes an 802.11b-compliant wireless access point, providing
continuous, high-speed 11 Mbps access between your wireless and Ethernet devices. The access
point provides:
• 802.11b Standards-based wireless networking at up to 11 Mbps
• 64-bit and 128-bit WEP encryption security
• WEP keys can be generated manually or by passphrase
• Wireless access can be restricted by MAC address.
A Powerful, True Firewall
Unlike simple Internet sharing NAT routers, the DG824M is a true firewall, using stateful packet
inspection to defend against hacker attacks. Its firewall features include:
• 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.
• Blocks unwanted traffic from the Internet to your LAN.
• Blocks access from your LAN to Internet locations or services that you specify as off-limits.
• Logs security incidents
The DG824M will log security events such as blocked incoming traffic, port scans, attacks,
and administrator logins. You can configure the gateway to email the log to you at specified
intervals. You can also configure the gateway to send immediate alert messages to your email
address or email pager whenever a significant event occurs.

Reference Manual for the Model DG824M Wireless ADSL Modem Gateway
Introduction 2-3
Content Filtering
With its content filtering feature, the DG824M prevents objectionable content from reaching your
PCs. The gateway allows you to control access to Internet content by screening for keywords
within Web addresses. You can configure the gateway to log and report attempts to access
objectionable Internet sites.
Auto Sensing and Auto Uplink™ LAN Ethernet Connections
With its internal 4-port 10/100 switch, the DG824M can connect to either a 10 Mbps standard
Ethernet network or a 100 Mbps Fast Ethernet network. The local LAN ports are autosensing and
capable of full-duplex or half-duplex operation.
The gateway incorporates Auto UplinkTM technology. Each LOCAL Ethernet port will
automatically sense whether the Ethernet cable plugged into the port should have a ‘normal’
connection such as to a PC or an ‘uplink’ connection such as to a switch or hub. That port will then
configure itself to the correct configuration. This feature also eliminates the need to worry about
crossover cables, as Auto Uplink will accommodate either type of cable to make the right
connection.
Protocol Support
The DG824M supports the Transmission Control Protocol/Internet Protocol (TCP/IP) and Routing
Information Protocol (RIP). Appendix B, “Network and Routing Basics” provides further
information on TCP/IP.
• IP Address Sharing by NAT
The DG824M allows several networked PCs to share an Internet account using only a single
IP address, which may be statically or dynamically assigned by your Internet service provider
(ISP). This technique, known as Network Address Translation (NAT), allows the use of an
inexpensive single-user ISP account.
• Automatic Configuration of Attached PCs by DHCP
The DG824M dynamically assigns network configuration information, including IP, gateway,
and domain name server (DNS) addresses, to attached PCs on the LAN using the Dynamic
Host Configuration Protocol (DHCP). This feature greatly simplifies configuration of PCs on
your local network.

Reference Manual for the Model DG824M Wireless ADSL Modem Gateway
2-4 Introduction
• DNS Proxy
When DHCP is enabled and no DNS addresses are specified, the gateway provides its own
address as a DNS server to the attached PCs. The gateway obtains actual DNS addresses from
the ISP during connection setup and forwards DNS requests from the LAN.
• Classical IP (RFC 1577)
Some Internet service providers, in Europe for example, use Classical IP in their ADSL
services. In such cases, the gateway is able to use the Classical IP address from the ISP.
• PPP over Ethernet (PPPoE)
PPP over Ethernet is a protocol for connecting remote hosts to the Internet over an ADSL
connection by simulating a dial-up connection. This feature eliminates the need to run a login
program such as EnterNet or WinPOET on your PC.
• PPP over ATM (PPPoA)
PPP over ATM is a protocol for connecting remote hosts to the Internet over an ADSL
connection by simulating a ATM connection.
• Dynamic DNS
Dynamic DNS services allow remote users to find your network using a domain name when
your IP address is not permanently assigned. The gateway contains a client that can connect to
many popular Dynamic DNS services to register your dynamic IP address.
• Universal Plug and Play (UPnP)
UPnP is a networking architecture that provides compatibility among networking technology.
UPnP compliant routers provide broadband users at home and small businesses with a
seamless way to participate in online games, videoconferencing and other peer-to-peer
services.
Easy Installation and Management
You can install, configure, and operate the DG824M within minutes after connecting it to the
network. The following features simplify installation and management tasks:
• Browser-based management
Browser-based configuration allows you to easily configure your gateway from almost any
type of personal computer, such as Windows, Macintosh, or Linux. A user-friendly Setup
Wizard is provided and online help documentation is built into the browser-based Web
Management Interface.
• Smart Wizard
The gateway automatically senses the type of Internet connection, asking you only for the
information required for your type of ISP account.

Reference Manual for the Model DG824M Wireless ADSL Modem Gateway
Introduction 2-5
• Remote management
The gateway allows you to login to the Web Management Interface from a remote location via
the Internet. For security, you can limit remote management access to a specified remote IP
address or range of addresses, and you can choose a nonstandard port number.
• Diagnostic functions
The gateway incorporates built-in diagnostic functions such as Ping, DNS lookup, and remote
reboot. These functions allow you to test Internet connectivity and reboot the gateway. You
can use these diagnostic functions directly from the DG824M when your are connect on the
LAN or when you are connected over the Internet via the remote management function.
• Visual monitoring
The gateway’s front panel LEDs provide an easy way to monitor its status and activity.
• Flash EPROM for firmware upgrade
What’s in the Box?
The product package should contain the following items:
• DG824M Wireless ADSL Modem Gateway
• AC power adapter (varies by region)
• Category 5 (Cat 5) Ethernet cable
• Telephone cable
• Microfilters (quantity and type vary by region)
•Model DG824M Resource CD, including:
—Thisguide
— Application Notes
• A Quick Printed Installation Guide
• Warranty and Support Information Cards
If any of the parts are incorrect, missing, or damaged, contact your NETGEAR dealer. Keep the
carton, including the original packing materials, in case you need to return the product for repair.

Reference Manual for the Model DG824M Wireless ADSL Modem Gateway
2-6 Introduction
The Gateway’s Front Panel
The DG824M Wireless ADSL Modem Gateway front panel shown below contains status LEDs.
Figure 2-1: DG824M Front Panel
You can use the LEDs to verify various conditions. Table 2-1 lists and describes each LED on the
front panel of the router. These LEDs are green when lit.
Table 2-1. LED Descriptions
Label Activity Description
Power On
Off
Power is supplied to the router.
Power is not supplied to the router.
Tes t On
Off
The system is initializing.
The system is ready and running.
Internet Blink -- Amber
On -- Green
Blink -- Green
Indicates ADSL training.
The Internet port has detected a link with an attached device.
Data is being transmitted or received by the Internet port.
Wireless On
Off
Indicates that the Wireless port is initialized.
The Wireless Access Point is turned off.
LAN On (Green)
Blink (Green)
On (Amber)
Blink (Amber)
Off
The Local port has detected link with a 100 Mbps device.
Data is being transmitted or received at 100 Mbps.
The Local port has detected link with a 10 Mbps device.
Data is being transmitted or received at 10 Mbps.
No link is detected on this port.

Reference Manual for the Model DG824M Wireless ADSL Modem Gateway
Introduction 2-7
The Gateway’s Rear Panel
The rear panel of the DG824M Wireless ADSL Modem Gateway (Figure 2-2) contains port
connections.
Figure 2-2: DG824M Rear Panel
Viewed from left to right, the rear panel contains the following elements:
• AC power adapter outlet
• Wireless antenna
• Factory Default Reset push button
• Four Local Ethernet RJ-45 ports for connecting the gateway to the local computers
• ADSL port for connecting the gateway to an ADSL line