Netgear DG824M Reference Guide
Reference Manual for the Model DG824M Wireless ADSL Modem Gateway
NETGEAR, Inc.
4500 Great America Parkway
Santa Clara, CA 95054 USA
Phone 1-888-NETGEAR
SM-DG824MNA-1
July 2003
© 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).
ii
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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iv
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
Contents v
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
vi Contents
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
Contents vii
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
viii Contents
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
Contents ix
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
x Contents
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:
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.
This manual is written for the DG824M wireless gateway according to these specifications.:
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.
About This Guide 1
Reference Manual for the Model DG824M Wireless ADSL Modem Gateway
How to Use this Manual
The HTML version of this manual includes these features.
1
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
3
2. Toolbar buttons. Use the toolbar buttons across the top to navigate, print pages, and more.
–The Show 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.
–The PDF button links to a PDF version of the full manual.
–The E-mail button enables you to send feedback by e-mail to Netgear support.
–The Print button prints the currently displayed topic. Using this button when a
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not have to worry about specifying the correct range of pages.
–The Bookmark 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.
2 About This Guide
Reference Manual for the Model DG824M Wireless ADSL Modem Gateway
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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– 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.
About This Guide 3
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.
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.
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
Introduction 2-1
Reference Manual for the Model DG824M Wireless ADSL Modem Gateway
• 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.
2-2 Introduction
Reference Manual for the Model DG824M Wireless ADSL Modem Gateway
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.
TM
The gateway incorporates Auto Uplink
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.
technology. Each LOCAL Ethernet port will
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.
Introduction 2-3
Reference Manual for the Model DG824M Wireless ADSL Modem Gateway
• 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.
2-4 Introduction
Reference Manual for the Model DG824M Wireless ADSL Modem Gateway
• 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:
—This guide
— 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.
Introduction 2-5
Reference Manual for the Model DG824M Wireless ADSL Modem Gateway
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
Te st O n
Off
Internet Blink -- Amber
On -- Green
Blink -- Green
Wireless On
Off
LAN On (Green)
Blink (Green)
On (Amber)
Blink (Amber)
Off
Power is supplied to the router.
Power is not supplied to the router.
The system is initializing.
The system is ready and running.
Indicates ADSL training.
The Internet port has detected a link with an attached device.
Data is being transmitted or received by the Internet port.
Indicates that the Wireless port is initialized.
The Wireless Access Point is turned 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.
2-6 Introduction
Reference Manual for the Model DG824M Wireless ADSL Modem Gateway
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
Introduction 2-7
Reference Manual for the Model DG824M Wireless ADSL Modem Gateway
2-8 Introduction
Chapter 3
Connecting the Gateway to the Internet
This chapter describes how to set up the gateway on your Local Area Network (LAN), connect to
the Internet, how to configure your DG824M Wireless ADSL Modem Gateway for Internet access
using the Setup Wizard, or how to manually configure your Internet connection.
What You Will Need Before You Begin
You need to prepare these three things before you can establish an Internet connection through
your gateway:
1. The gateway connected to an ADSL line and a computer properly connected to the gateway as
explained below.
2. Active Internet service such as that provided by an ADSL account.
3. The Internet Service Provider (ISP) configuration information for your DSL account.
ADSL Microfilter Requirements
ADSL technology uses the same wires as your telephone service. However, ADSL adds signals to
the telephone lines which create noise in the telephone service. You must use ADSL microfilters to
filter out these signals before they reach your telephone.
ADSL Microfilter
Phone
Figure 3-1: ADSL microfilter
Each device such as a telephone, fax machine, answering machine, or caller ID display will require
an ADSL microfilter.
Connecting the Gateway to the Internet 3-1
Reference Manual for the Model DG824M Wireless ADSL Modem Gateway
Note: Do not connect the DG824M to the ADSL line through a microfilter unless the microfilter
is a combination microfilter/splitter specifically designed for this purpose. Doing so will prevent
the built-in ADSL modem in the DG824M from establishing a connection to the Internet. If you
have any doubts about this, connect the DG824M directly to the ADSL line.
ADSL Microfilter with Built-In Splitter
DSL
Phone
Figure 3-2: ADSL microfilter with built-in splitter
Line
Use an ADSL microfilter with built-in splitter when there is a single wall outlet must provide
connectivity for both the DG824M and telephone equipment.
Ethernet Cabling Requirements
The DG824M wireless gateway connects to your Ethernet LAN via twisted-pair cables. If the
computer will connect to your network at 100 Mbps, you must use a Category 5 (CAT5) cable such
as the one provided with your gateway.
Computer Hardware Requirements
To use the DG824M wireless gateway on your network, each computer must have an installed
Ethernet adapter and an Ethernet cable, or a 802.11b wireless adapter.
LAN Configuration Requirements
For the initial connection to the Internet and configuration of your gateway, you will need to
connect a computer to the gateway which is set to automatically get its TCP/IP configuration from
the gateway via DHCP.
Note: Please refer to Appendix C, “Preparing Your Network for assistance with DHCP
configuration.
3-2 Connecting the Gateway to the Internet
Reference Manual for the Model DG824M Wireless ADSL Modem Gateway
Internet Configuration Requirements
Depending on how your ISP set up your Internet account, you will need one or more of these
configuration parameters to connect your gateway to the Internet:
• VPI/VCI parameters
• Multiplexing Method
• Host and Domain Names
• ISP Login Name and Password
• ISP Domain Name Server (DNS) Addresses
• Fixed or Static IP Address
Where Do I Get the Internet Configuration Parameters?
There are several ways you can gather the required Internet connection information.
• 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 or you can try one of
the options below.
• If you have a computer already connected using the active Internet access account, you can
gather the configuration information from that computer.
• For Windows 95/98/ME, open the Network control panel, select the TCP/IP entry for the
Ethernet adapter, and click Properties.
• For Windows 2000/XP, open the Local Area Network Connection, select the TCP/IP entry
for the Ethernet adapter, and click Properties.
• For Macintosh computers, open the TCP/IP or Network control panel.
• You may also refer to the DG824M Resource CD for the NETGEAR Router ISP Guide which
provides Internet connection information for many ISPs.
Once you locate your Internet configuration parameters, you may want to record them on the page
below according to the instructions in “Record Your Internet Connection Information” on page
3-4.
Connecting the Gateway to the Internet 3-3
Reference Manual for the Model DG824M Wireless ADSL Modem Gateway
Record Your Internet Connection Information
Print this page. Fill in the configuration parameters from your Internet Service Provider (ISP).
ISP Multiplexing Method and Virtual Circuit Number: The default settings of your DG824M
Wireless ADSL Modem Gateway will work fine for most ISPs. However, some ISPs use a specific
Multiplexing Method or a Virtual Circuit Number for either the VPI or VCI. If your ISP provided
you with a specific Multiplexing Method or VPI/VCI number, then fill in the following:
Multiplexing Method, circle one: LLC-based or VC-based
VPI: ________
ISP Login Name: The login name and password are case sensitive and must be entered exactly as
given by your ISP. Some ISPs use your full e-mail address as the login name. The Service Name is
not required by all ISPs. If you use a login name and password, then fill in the following:
A number between 0 and 255. VCI: ___________ A number between 1and 65535.
Login Name: ______________________________
Password: ____________________________
Service Name: _____________________________
Fixed or Static IP Address: If you have a static IP address, record the following information. For
example, 169.254.141.148 could be a valid IP address.
Fixed or Static Internet IP Address: ______
. ______ . ______ . ______
Gateway IP Address: ______ . ______ . ______ . ______
Subnet Mask: ______ . ______ . ______ . ______
ISP DNS Server Addresses: If you were given DNS server addresses, fill in the following:
Primary DNS Server IP Address: ______
. ______ . ______ . ______
Secondary DNS Server IP Address: ______ . ______ . ______ . ______
Host and Domain Names: Some ISPs use a specific host or domain name like CCA7324-A or
home. If you did not get host or domain names, use the following examples as a guide:
• If your main e-mail account with your ISP is aaa@yyy.com, then use aaa as your host name.
Your ISP might call this your account, user, host, computer, or system name.
• If your ISP’s mail server is mail.xxx.yyy.com, then use xxx.yyy.com as the domain name.
ISP Host Name: _________________________
ISP Domain Name: _______________________
For Wireless Access: For configuration of the wireless network, record the following:
Wireless Network Name (SSID): __________________
WEP Authentication (circle one): Automatic, Open System, or Shared Key
WEP Encryption (circle one): 64 or 128; Passphrase or Key: ____________________
3-4 Connecting the Gateway to the Internet
Reference Manual for the Model DG824M Wireless ADSL Modem Gateway
Connecting the DG824M to Your LAN
This section provides instructions for connecting the DG824M wireless gateway.
Note: The Resource CD included with your gateway contains an animated Installation Assistant to
help you through this procedure.
How to Connect the Gateway
There are three steps to connecting your firewall:
1. Connect the gateway to your ADSL line
2. Connect the gateway to the computers on your network
3. Log in to the gateway
4. Connect to the Internet
Follow the steps below to connect your gateway to your network. You can also refer to the
Resource CD included with your gateway which contains an animated Installation Assistant to
help you through this procedure.
Before you begin, locate the ADSL configuration information from your Internet Service Provider
(ISP).
1. CONNECT THE DG824M TO THE ADSL LINE.
a. You need to install a filter on every telephone or device that shares the same phone
number as your ADSL gateway. Select the filter that came with your gateway.
One-Line Filter
Two-Line Filter
With Splitter
Figure 3-3: ADSL microfilters
Phone
DSL
Phone
Line
Note: If you purchased the DG824M in a country where the filter is not included, you
must acquire one.
Connecting the Gateway to the Internet 3-5
Splitter
Reference Manual for the Model DG824M Wireless ADSL Modem Gateway
Two-Line Filter Example. Insert the two-line filter into the phone outlet and connect the
b.
phone to the phone line connector (A).
Line
Phone
DSL
A
Figure 3-4: Connecting an ADSL microfilter and phone
Note: To use a one-line filter with a separate splitter, insert the splitter into the phone
outlet, connect the one-line filter to the splitter, and connect the phone to the filter.
2. CONNECT THE DG824M TO THE INTERNET.
Note: Improperly connecting a filter to your DG824M wireless gateway will block your
ADSL connection.
a. Turn off your computer.
b. Connect the ADSL port of the DG824M to the ADSL port (B) of the two-line filter.
Line
Phone
DSL
B
Wireless ADSL Modem Gateway DG824M
Figure 3-5: Connecting DG824M wireless gateway to an ADSL microfilter and phone
3-6 Connecting the Gateway to the Internet
Reference Manual for the Model DG824M Wireless ADSL Modem Gateway
Connect the Ethernet cable (C) from your DG824M’s LAN port to the Ethernet adapter in
c.
your computer.
Line
Phone
DSL
C
Wireless ADSL Modem Gateway DG824M
Figure 3-6: Connecting a computer to the DG824M wireless gateway
Note: The DG824M wireless gateway incorporates Auto UplinkTM technology. Each Ethernet
LAN port will automatically sense whether the cable plugged into the port should have a
'normal' connection (e.g. connecting to a PC) or an 'uplink' connection (e.g. connecting 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.
d. Connect the power adapter to the gateway and plug it in to a power outlet. Verify the
following:
The power light is lit after turning on the gateway.
The ADSL link light is solid green, indicating a link has been established to the
cable network.
e. Now, turn on your computer. If software usually logs you in to your Internet connection,
do not run that software or cancel it if it starts automatically.
The local lights are lit for any connected computers.
Note: For instructions on connecting computers to the DG824M via wireless links, please
see the Chapter 4, “Wireless Configuration”.
3. LOG IN TO THE DG824M.
Note: Your computer needs to be configured for DHCP. For instructions on configuring for
DHCP, please see Appendix C in the Reference Manual on the Model DG824M Resource CD.
Connecting the Gateway to the Internet 3-7
Reference Manual for the Model DG824M Wireless ADSL Modem Gateway
Connect to the gateway by typing http://192.168.0.1 in the address field of Internet
a.
®
Explorer or Netscape
Figure 3-7: Log in to the gateway
Navigator.
A login window opens as shown below:
Figure 3-8: Login window
b.
When prompted, enter admin for the user name and password for the password, both in
lower case letters. After logging in, you will see the menu below.
Figure 3-9: Setup Wizard
3-8 Connecting the Gateway to the Internet
Reference Manual for the Model DG824M Wireless ADSL Modem Gateway
4.
CONNECT TO THE INTERNET
a. If you do not see the menu above, click the Setup Wizard link on the upper left of the main
menu. Click the Yes button in the Setup Wizard, and click the Next button to let the Setup
Wizard automatically detect what type of Internet connection your ISP has provided.
b. Select your country and the multiplexing method will update with the preset defaults. The
multiplexing method preset default settings will usually work. Only change the
multiplexing method if you are sure your ISP requires VPI or VCI settings that are
different from the default values. Incorrect VPI or VCI settings will prevent you from
connecting to the Internet.
Note: You must select a country before clicking Next to proceed with the Setup Wizard.
c. Click the Next button to let the Setup Wizard detect the type of connection you have from
your ISP. Follow the steps in the subsequent screens of the Setup Wizard to input the
Internet configuration parameters from your ISP.
Note: If you were unable to connect to the gateway, please refer to Chapter 8,
“Troubleshooting”. Also, improperly connecting a filter between the gateway and your
phone line will block your ADSL connection.
Connecting the DG824M to the Internet
The gateway is now properly attached to your network. You are now ready to configure your
gateway to connect to the Internet. There are two ways you can configure your gateway to connect
to the Internet:
• Let the DG824M auto-detect the type of Internet connection you have and configure it.
• Manually choose which type of Internet connection you have and configure it.
These options are described below. In either case, unless your ISP automatically assigns your
configuration automatically via DHCP, you will need the configuration parameters from your ISP
you recorded in “Record Your Internet Connection Information” on page 3-4.
Auto-Detecting Your Internet Connection Type
The Web Configuration Manager built in to the gateway contains a Setup Wizard that can
automatically determine your network connection type.
1. If your gateway has not yet been configured, the Setup Wizard shown in Figure 3-9 should
launch automatically.
Connecting the Gateway to the Internet 3-9
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