NETGEAR DG824M User Manual
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-0
November 2002
© 2002 by NETGEAR, Inc. All rights reserved.
Trademarks
NETGEAR is a trademark of Netgear, Inc.
Microsoft, Windows, and Windows NT are registered trademarks of Microsoft Corporat io n.
Other brand and product names are registered trademark s 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 liabi l ity 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 b een tested and found to co mply with the limits f or 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 inst allation. This equipment generates, uses, and can radiate radio freq uency energy and, if not insta ll ed and
used in accordance with the inst ructions, m ay caus e harmful inte rference to radio c ommunic ations. Ho wever, 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 an t enna.
• Increase the separation between the equip ment 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 Stateme nt
This equipment complies with FCC radi ation exposure limits set forth fo r an uncontro lled environm ent. 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 bestäti gt, 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 24 3/ 19 91 an d Vfg 4 6/199 2 . The op er ati on of som e equip me n t (for exa m ple,
test transmitters) in accordance with the regulations may, however, be subject to certain restrictio ns. 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 categor y (information equipment to be used in a residentia l 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 radi o i nt erference.
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 locat or (URL)
http://www.netgear.com. A direct connection to the Internet and a Web browser such as Internet Explorer
or Netscape are required.
iii
iv
Contents
Preface
About This Guide
Chapter 1
Introduction
About the Gateway ...................................... ...... ....... ...... ....... .........................................1-1
Key Features ..................................................................................................................1-1
802.11b Standards-based Wireless Networking ......................................................1-2
A Powerful, True Firewall .........................................................................................1-2
Content Filtering ............................. ....... ...... ....... ...... ............................................. ...1-3
Auto Sensing and Auto Uplink™ LAN Ethernet Connections ..................................1-3
Protocol Support ......................................................................................................1-3
Easy Installation and Management ..........................................................................1-4
What’s in the Box? ..........................................................................................................1-6
The Gateway’s Front Panel ......................................................................................1-6
The Gateway’s Rear Panel ......................................................................................1-8
Chapter 2
Connecting the Gateway to the Internet
What You Will Need Before You Begin ...........................................................................2-1
Cabling Requirements ..............................................................................................2-1
Computer Hardware Requirements ............ ....... ...... ....... ...... ...... ....... ......................2-2
LAN Configuration Requirements ............................................................................2-2
Internet Configuration Requirements .......................................................................2-2
Where Do I Get the Internet Configuration Parameters? .........................................2-2
Connecting the DG824M Wireless ADSL Modem Gateway to Your LAN ......................2-5
Connecting the DG824M to the Internet .........................................................................2-9
Testing Your Internet Connection ..................................................................................2-16
Manually Configuring Your Internet Connection ...........................................................2-17
Contents v
Chapter 3
Wireless Configuration
Considerations For A Wireless Network .........................................................................3-1
Implement Appropriate Security ...............................................................................3-1
Observe Placement and Range Guidelines .............................................................3-1
Wireless Settings ............................................................................................................3-2
Using the Wireless Access by MAC Address Feature .............................................3-4
Configuring Wired Equivalent Privacy (WEP) ..........................................................3-6
Configuring WEP (Wired Equivalent Privacy) .................................................................3-7
Chapter 4
Protecting Your Network
Protecting Access to Your DG824M Wireless ADSL Modem Gateway ..........................4-1
Configuring Basic Firewall Servic es ............................... ....... .........................................4-3
Blocking Keywords, Sites, and Services ..................................................................4-3
Rules ..............................................................................................................................4-5
Inbound Rules (Port Forwarding) .............................................................................4-7
Inbound Rule Example: A Local Public Web Server ..........................................4-7
Inbound Rule Example: Allowing Videoconference from Restricted Addresses 4-9
Considerations for Inbound Rules .....................................................................4-9
Outbound Rules (Service Blocking) .......................................................................4-10
Outbound Rule Example: Blocking Instant Messenger ...................................4-10
Order of Precedence for Rules ..............................................................................4-12
Services ...................... .............................................. ............................................. .......4-13
Setting Times and Scheduling Firewall Services ..........................................................4-14
Chapter 5
Managing Your Network
Backing Up, Restoring, or Erasing Your Settings ...........................................................5-1
Upgrading the Gateway’s Firmware ...............................................................................5-3
Network Management Information .................................................................................5-5
Viewing Gateway Status and Usage Statistics .........................................................5-5
Viewing Attached Devices ........................................................................................5-9
Viewing, Selecting, and Saving Logged Information ..............................................5-10
Selecting What Information to Log ..................................................................5-11
Saving Log Files on a Server ......... ...... ....... ...... ....... ...... ...... ...........................5-12
Examples of log messages ....................................................................................5-12
vi Contents
Activation and Administration ..........................................................................5-12
Dropped Packets .............................................................................................5-12
Enabling Security Event E-mail Notification .................................................................5-13
Running Diagnostic Utilities and Rebooting the Router ................................................5-15
Enabling Remote Management ....................................................................................5-16
Chapter 6
Advanced Configuration
Configuring Advanced Security ......................................................................................6-1
Setting Up A Default DMZ Server ............................................................................6-1
Respond to Ping on Internet WAN Port ...................................................................6-2
Configuring LAN IP Settings ...........................................................................................6-3
LAN TCP/IP Setup ...................................................................................................6-3
MTU Size ...........................................................................................................6-4
DHCP ................................................................................................................6-5
Reserved IP addresses .....................................................................................6-6
Configuring Dynamic DNS .......................................................................................6-7
Using Static Routes ........................................................................................................6-9
Static Route Example ...............................................................................................6-9
Chapter 7
Troubleshooting
Basic Functioning ................................. ....... ...... ....... ...... ....... ...... ...... ....... ...... ....... .........7- 1
Power LED Not On ...................................................................................................7-2
Test LED Never Turns On or Test LED Stays On .....................................................7-2
LAN or WAN Port LEDs Not On ...............................................................................7-2
Troubleshooting the Web Configuration Interface ..........................................................7-3
Troubleshooting the ISP Connection ..............................................................................7-4
ADSL link .................................................................................................................7-4
WAN LED Blinking Yellow ..................................................................................7-4
WAN LED Off .....................................................................................................7-5
Obtaining a WAN IP Address ...................................................................................7-5
Troubleshooting PPPoE or PPPoA ..........................................................................7-6
Troubleshooting Internet Browsing ..........................................................................7-6
Troubleshooting a TCP/IP Network Using the Ping Utility ..............................................7-7
Testing the LAN Path to Your Router .......................................................................7-7
Testing the Path from Your PC to a Remote Device ................................................7-8
Contents vii
Restoring the Default Configuration and Password ........................................................7-9
Problems with Date and Time .........................................................................................7-9
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
Ethernet Cabling ...........................................................................................................B-11
Uplink Switches and Crossover Cables .................................................................B-11
Cable Quality ......................................................................................................... B-12
Internet Security and Firewalls .................................................................................... B-12
What is a Firewall? ................................................................................................ B-12
Stateful Packet Inspection ..................................................................................... B-13
Denial of Service Attack ........................................................................................ B-13
Wireless Networking .................................................................................................... B-13
Wireless Network Configuration ............................................................................ B-13
Ad Hoc Mode (Peer-to-Peer Workgroup) ....................................................... B-14
Infrastructure Mode ........... ...... ....... ...... ............................................. ....... ...... B -14
Extended Service Set Identification (ESSID) ........................................................ B-14
Authentication and WEP Encryption ..................................................................... B-15
Wireless Channel Selection .................................................................................. B-15
viii Contents
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
Selecting Windows’ Internet Acce ss Metho d ........................................... ....... ...... .. 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-1 6
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
Glossary
Index
Contents ix
x Contents
List of Procedures
Procedure 2-1: Record Your Internet Connection Information ......................................2-4
Procedure 2-2: Connecting the Gateway ......................................................................2-5
Procedure 2-3: Auto-Detecting Your Internet Connection Type ..................................2-10
Procedure 2-4: Wizard-Detected PPPoE Login Account Setup ..................................2-11
Procedure 2-5: Wizard-Detected PPPoA Login Account Setup ..................................2-12
Procedure 2-6: Wizard-Detected Dynamic IP Account Setup .....................................2-14
Procedure 2-7: Wizard-Detected Fixed IP (Static) Account Setup ..............................2-15
Procedure 2-8: Manual Configuration .........................................................................2-18
Procedure 3-1: Configuring Basic Wireless Network Settings .......................................3-3
Procedure 3-2: Restricting Wireless Access by MAC Address .....................................3-5
Procedure 4-1: Changing the Built-In Password ...........................................................4-1
Procedure 4-1: Changing the Administrator Login Timeout ..........................................4-2
Procedure 4-2: Block Keywords and Sites ....................................................................4-3
Procedure 4-3: Define Services ..................................................................................4-13
Procedure 4-4: Setting Yo ur Time Zone ......................................................................4-14
Procedure 4-5: Scheduling Firewall Services ..............................................................4-16
Procedure 5-6: Backup the Configuration to a File .......................................................5-1
Procedure 5-7: Restore a Configuration from a File ......................................................5-3
Procedure 5-8: Erase the Configuration ........................................................................5-3
Procedure 5-1: Gateway Upgrade .................................................................................5-4
Procedure 5-2: Configure Remote Management ........................................................5-16
Procedure 6-1: Configuring A Default DMZ Server. ......................................................6-2
Procedure 6-1: Configure LAN TCP/IP Setup ...............................................................6-6
Procedure 6-2: Configure Dynamic DNS ......................................................................6-8
Procedure 6-3: Configuring Static Routes ...................................................................6-10
1
2
Preface
About This Guide
Thank you for purchasing the NETGEAR™ DG824M Wireless ADSL Modem Gateway.
Audience
This reference manual assumes that the reader has basic to intermediate computer and Internet
skills. However, basic computer network, Internet, firewall, and wireless technologies tutorial
information is provided in the Appendices.
Technical Support
For help with any technical issues, contact Customer Support at 1-888-NETGEAR, or visit us on
the Web at www.NETGEAR.com. The NETGEAR Web site includes an extensive knowledge
base, answers to frequently asked questions, and a means for submitting technical questions
online.
We recommend you register your product online at: www.NETGEAR.com/register
About This Guide 3
Reference Manual for the Model DG824M Wireless ADSL Modem Gateway
Typographical Conventions
This guide uses the following typographical conventions:
italics Book titles and UNIX file, command, and directory names.
courier font Screen text, user-typed com mand-line entries.
Initial Caps Menu titles and window and button names.
[Enter] Named keys in text are shown enclosed in square brackets. The notation
[Enter] is used for the Enter key and the Return key.
[Ctrl]+C Two or more keys that must be pressed simultaneously are shown in text
linked with a plus (+) sign.
ALL CAPS DOS file and directory names.
Special Message Forma ts
This guide uses the following formats to highlight special messages:
Note: This format is used to highlight information of importance or special interest.
Procedure: This format is used to let you know that you are following a sequence of
steps required to complete a task.
Warning: This format is used to highl igh t in for m at ion about the possibility of injur y or
equipment damage.
Danger: This format is used to alert you that there is the potential for incurring an
electrical shock if you mishandle the equipment.
4 About This Guide
Chapter 1
Introduction
This chapter desc ribes the f eatures of the NETGEAR DG824M Wireless ADS L Modem Gatewa y.
The DG824M 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 Interne t connection that otherwis e is
used by a single PC.
Note: If you are un familiar with networkin g and routing, r efer to Appendix B, “Network
and Routing Basics,” to become mor e familiar with the terms and procedur es used in this
manual.
About the Gateway
The DG824M Wirele ss ADSL Mo dem Gate way pro vid es continuous, high-speed 11 Mbps access
between your wireless and Ethernet devices. The DG824M 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 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 gateway provides the following features:
• A Powerful, True Firewall
Introduction 1-1
Reference Manual for the Model DG824M Wireless ADSL Modem Gateway
• 802.11b Standards-based wireless networking
• Content Filtering
• 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 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 restri cted 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.
1-2 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.
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 ‘uplin k’ connecti on such as to a switch or hub. Th at port wil l 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.
TM
technology. Each LOCAL Ethernet port will
Protocol Support
The DG824M supports the T ra nsmission Contr ol Protocol /Internet Protocol ( TCP/IP) and Routi ng
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) addre sses, 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 1-3
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 t o t he attached PCs. The gateway obtains actual DNS addresse s f rom
the ISP during connection setup and forwards DNS requests from the LAN.
• 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 per manen tly as signed . The gat eway cont ains a clien t that ca n connec t to
many popular Dynamic DNS services to register your dynamic IP address.
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.
• Remote management
The gateway allows you to logi n to t he Web Management Interface from a remote locat ion vi a
the Internet. For security, you can limi t remote management access to a specified remote IP
address or range of addresses, and you can choose a nonstandard port number.
1-4 Introduction
Reference Manual for the Model DG824M Wireless ADSL Modem Gateway
• Diagnostic functions
The gateway incorp ora te s built-in diagnostic functions such as Pi ng, DNS lo okup, 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
Introduction 1-5
Reference Manual for the Model DG824M Wireless ADSL Modem Gateway
What’s in the Box?
The product package should contain the following items:
• DG824M Wireless ADSL Modem Gateway
• AC power adapter (varies by region)
• Categor y 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 Installat ion 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.
The Gateway’s Front Panel
The DG824M Wireless ADSL Modem Gateway front panel shown below contains status LEDs.
Figure 1-1: DG824M Front Panel
1-6 Introduction
Reference Manual for the Model DG824M Wireless ADSL Modem Gateway
You can use the LEDs to verify various conditions. Table 1 -1 lists and describes each LED on the
front panel of the router. These LEDs are green when lit.
Table 1-1. LED Descriptions
Label Activity Description
Power On
Off
Test On
Off
Internet Blink -- Amber
On -- Green
Blink -- Green
Wireless On Indicates that the Wireless port is initialized.
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.
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.
Introduction 1-7
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 1-2) contains port
connections.
Figure 1-2: DG824M Rear Panel
Viewed from left to right, the rear panel contains the following elements:
• AC power adapter outlet
• Factory Default Reset push button
• Wireless antenna
• Four Local Ethernet RJ-45 ports for connecting the gateway to the local computers
• ADSL port for connecting the gateway to an ADSL line
1-8 Introduction
Chapter 2
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 connecte d to an ADSL line and a c omputer proper ly con nected to the ga teway a s
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.
Cabling Requirements
The built-in ADSL modem of the DG824M gateway connects to the Internet via your telephone
line using standard twisted-pair telephone cables.
Note: Do not connect the DG824M to the ADSL line through a microfilter unless the microfilter
is specifically designed for this purpose. Doing so will prevent the built-in DSL modem in the
DG824M from establishing a connection to the Internet. If you have any doubts about this, it is
recommended that you connect the DG824 directly to the ADSL line.
The DG824M gateway connects to your LAN via twisted-pair Ethernet cables.
Connecting the Gateway to the Internet 2-1
Reference Manual for the Model DG824M Wireless ADSL Modem Gateway
Computer Hardware Requirements
To use the DG824M gateway on your network, each computer must have an installed Ethernet
Network Interface Card (NIC) and an Ethernet cable, or a 802.11b wireless adapter. If the
computer will connect to your networ k at 100 Mbps, you must use a Category 5 (CAT5) cable such
as the one provided with your gateway.
LAN Configuration Requirements
For the initial connection to the Internet and configuration of your gateway, you will need to
connect a computer to the gat eway which is set t o automat icall y get it s TCP/IP con figur ation from
the gateway via DHCP.
Note: Please refer to Appendix C, “Preparing Your Network for assistance with DHCP
configuration.
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 shou ld h ave p rovi de d you with all the information ne eded to c onne ct 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.
2-2 Connecting the Gateway to the Internet
Reference Manual for the Model DG824M Wireless ADSL Modem Gateway
• 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 Connecti on, 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 re fer to the DG824M Resour c e CD for the NETGEAR Router ISP Gui de which
provides Internet connection information for many ISPs.
Once you locate your Internet configu ration par ameters , you may want to rec ord them on the page
below according to the instructions in “Record Your Internet Connection Information” on page
2-4.
Connecting the Gateway to the Internet 2-3
Reference Manual for the Model DG824M Wireless ADSL Modem Gateway
Procedure 2-1: 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 an d pas swor d ar e ca se s ens itive and must be entered exact ly as
given by your ISP. Some ISPs use your full e -mail addr ess as the l ogin na me. The Ser vice Na me is
not required by all ISPs. If you connect using a login name and password, then fill in the
following:
A number between 0 and 255. VCI: ___________ A number between 1and 65535.
Login Name: ______________________________
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 Se rver 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 haven’t been given host or domain names, you can 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: _________________________
. ______ . ______ . ______
. ______ . ______ . ______
Password: ____________________________
ISP Domain Name: _______________________
2-4 Connecting the Gateway to the Internet
Reference Manual for the Model DG824M Wireless ADSL Modem Gateway
Connecting the DG824M Wireless ADSL Modem Gateway to Your LAN
This section provides instructions for connecting the DG824M gateway.
Note: The Resource CD included with your gateway contains an animated Installation Assistant to
help you through this procedure.
Procedure 2-2: Connecting the Gateway
There are three steps to connecting your firewall:
1. Connect the gateway to your ADSL line
1. Connect the gateway to the computers on your network
2. Log in to the gateway
3. 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.
Connecting the Gateway to the Internet 2-5
Reference Manual for the Model DG824M Wireless ADSL Modem Gateway
1.
Connect the DG824M.
a. Turn off your computer.
b. Connect the cable (A) from the DG824M ADSL port to your ADSL outlet, being sure to
properly connect the wires as shown in the illustration below.
Line
Phone
DSL
A
Wireless ADSL Modem Gateway DG824M
Figure 2-1: Connect the ADSL Cable
Note: The illustration above depicts a microfilter splitter specifically designed to enable a
phone and ADSL modem to connect to the same phone line wall jack outlet. Do not connect
the DG824B to your ADSL line with a microfilter unless the microfilter specifically designed
for that purpose. Doing so will prevent the modem from establishing a connection to the
Internet. If you have any doubts about this, use only a phone cord to connect the DG824B to
the ADSL wall jack outle t.
2-6 Connecting the Gateway to the Internet
Reference Manual for the Model DG824M Wireless ADSL Modem Gateway
c.
Connect the Ethernet cable (B) from your DG824M’s LAN port to a computer.
Line
Phone
DSL
B
Wireless ADSL Modem Gateway DG824M
Figure 2-2: Connect the gateway to a computer
Note: The DG824M gateway incorpor ates Auto UplinkTM technology . Eac h 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.
Connecting the Gateway to the Internet 2-7
Reference Manual for the Model DG824M Wireless ADSL Modem Gateway
Note: For instructions on co nnec ti ng comput er s t o the DG824M via wireless links, please
see the Chapter 3, “Wireless Configuration”.
2. Log in to the DG824M.
Note: If you usually run software to log in to your Internet connection, do not run that
software.
a. Connect to the ga teway by typing http://192.168.0.1 in the address field of Internet
Explorer or Netscape
Figure 2-3: Log in to the gateway
®
Navigator.
A login window opens as shown below:
Figure 2-4: Login window
For security reasons, the gateway has its own user name and password. When prompted,
b.
enter admin for the gateway User Name and password for the gateway Password, both i n
lower case letters.
Note: The user name and password are not the same as any user name or password you
may use to log in to your Internet connection.
2-8 Connecting the Gateway to the Internet
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