NETGEAR DG814 User Manual
Reference Manual for the Model DG814 DSL Modem Internet Gateway
NETGEAR, Inc.
4500 Great America Parkway
Santa Clara, CA 95054 USA
Phone 1-888-NETGEAR
SM-DG814NA-4
June 2003
© 2003 by NETGEAR, Inc. All rights reserved.
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.
EN 55 022 Declaration of Conformance
This is to certify that the Model DG814 DSL Modem Internet 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 Model DG814 DSL Modem Internet 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 Model DG814 DSL Modem Internet 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 Model DG814 DSL Modem Internet 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.
iii
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Contents
About This Guide
Technical Support .......................................................................................................... 1-xi
Related Publications ...................................................................................................... 1-xi
Typographical Conventions ..........................................................................................1-xiii
Special Message Formats ............................................................................................1-xiii
Chapter 1 Introduction
About the Gateway .........................................................................................................1-1
Key Features ..................................................................................................................1-1
Content Filtering .......................................................................................................1-3
Security ....................................................................................................................1-3
Autosensing 10/100 Ethernet ...................................................................................1-3
TCP/IP ......................................................................................................................1-4
Easy Installation and Management ..........................................................................1-4
Maintenance and Support ........................................................................................1-5
Chapter 2 Setting Up the Hardware
Package Contents .......................................................................................................... 2-1
Local Network Hardware Requirements .........................................................................2-2
PC Requirements ..............................................................................................2-2
Access Requirement .........................................................................................2-2
The Gateway’s Front Panel ............................................................................................ 2-2
The Gateway’s Rear Panel .............................................................................................2-3
Connecting the Gateway ................................................................................................2-4
Connecting to your Local Ethernet Network ............................................................. 2-5
Connecting to Your ADSL Service and Telephone Provider ....................................2-6
ADSL through a modular RJ-11 wall jack. ......................................................... 2-6
ADSL through other wall jacks .......................................................................... 2-7
Connecting the Power Adapter ................................................................................2-7
Contents v
Verifying Power ........................................................................................................2-7
Chapter 3 Preparing Your Network
Preparing Your Personal Computers for IP Networking .................................................3-1
Configuring Windows 95, 98, and ME for IP Networking ................................................3-2
Install or Verify Windows Networking Components ..................................................3-2
Assign TCP/IP configuration by DHCP ....................................................................3-4
Selecting Internet Access Method ............................................................................3-4
Verifying TCP/IP Properties (Windows) ...................................................................3-5
Configuring Windows NT or 2000 for IP Networking ...................................................... 3-5
Install or Verify Windows Networking Components ..................................................3-5
Verifying TCP/IP Properties ..................................................................................... 3-6
Configuring the Macintosh for IP Networking .................................................................3-6
MacOS 8.6 or 9.x .....................................................................................................3-6
MacOS X .................................................................................................................. 3-7
Verifying TCP/IP Properties (Macintosh) ..................................................................3-8
Your Internet Account ..................................................................................................... 3-8
Login Protocols ........................................................................................................ 3-9
Account Information .................................................................................................3-9
Obtaining ISP Configuration Information (Windows) ....................................... 3-10
Obtaining ISP Configuration Information (Macintosh) ..................................... 3-11
Restarting the Network ................................................................................................. 3-11
Ready for Configuration ................................................................................................ 3-11
Chapter 4 Basic Configuration of the Gateway
Accessing the Web Configuration Manager ...................................................................4-1
Configuration using the Setup Wizard ............................................................................4-4
Configuring for Dynamic IP Account ........................................................................4-5
Configuring for Fixed IP Account .............................................................................4-7
Configuring for an Account with Login .....................................................................4-9
Manual Configuration ...................................................................................................4-10
Completing the Configuration .......................................................................................4-12
Chapter 5 Maintenance
Gateway Status .............................................................................................................. 5-1
vi Contents
Attached Devices ............................................................................................................5-6
Configuration File Settings Management .......................................................................5-7
Restore and Backup the Configuration ....................................................................5-7
Erase the Configuration ...........................................................................................5-8
Changing the Configuration Password ...........................................................................5-8
Gateway Upgrade ...........................................................................................................5-9
Chapter 6 Advanced Configuration of the Gateway
Configuring for Port Forwarding to Local Servers ..........................................................6-1
Add a Custom Service ....................................................................................... 6-2
Edit or Delete a Port Forwarding Entry ..............................................................6-3
Local Web and FTP Server Example ................................................................ 6-3
Tip: Multiple Computers for Half Life, KALI or Quake III ....................................6-3
NAT Status ...............................................................................................................6-4
Security ...........................................................................................................................6-5
DMZ Server ....................................................................................................... 6-5
Respond to Ping on Internet WAN Port .............................................................6-6
Dynamic DNS .................................................................................................................6-6
LAN IP Setup ..................................................................................................................6-7
DHCP .......................................................................................................................6-8
Use router as DHCP server ...............................................................................6-8
Remote Management ..................................................................................................... 6-9
Static Routes ................................................................................................................ 6-11
Static Route Example .............................................................................................6-13
Using Universal Plug and Play (UPnP) ........................................................................6-14
Chapter 7 Troubleshooting
Basic Functioning ........................................................................................................... 7-1
PWR LED Not On ....................................................................................................7-1
Test LED Never Blinks or LED Stays On ..................................................................7-2
Troubleshooting the Web Configuration Interface ..........................................................7-2
Troubleshooting the ISP Connection ..............................................................................7-3
ADSL link .................................................................................................................7-3
WAN LED Blinking Yellow .................................................................................. 7-3
WAN LED Off .....................................................................................................7-4
Contents vii
Obtaining a WAN IP Address ...................................................................................7-4
Troubleshooting PPPoE or PPPoA ..........................................................................7-5
Troubleshooting Internet Browsing ..........................................................................7-5
Troubleshooting a TCP/IP Network Using a Ping Utility .................................................7-6
Testing the LAN Path to Your Gateway .................................................................... 7-6
Testing the Path from Your PC to a Remote Device ................................................7-7
Restoring the Default Configuration and Password ........................................................7-8
Using the Default Reset button ................................................................................7-8
Problems with Date and Time .........................................................................................7-8
Appendix A Technical Specifications
General Specifications ................................................................................................... A-1
Appendix B Networks and Routing Basics
Basic Router Concepts .................................................................................................. B-1
What is a Router? ................................................................................................... B-1
Routing Information Protocol ................................................................................... B-2
IP Addresses and the Internet ................................................................................. B-2
Netmask .................................................................................................................. B-4
Subnet Addressing .................................................................................................. B-4
Private IP Addresses ............................................................................................... B-7
Single IP Address Operation Using NAT ................................................................. B-7
MAC Addresses and Address Resolution Protocol ................................................. B-9
Domain Name Server .............................................................................................. B-9
IP Configuration by DHCP .................................................................................... B-10
Ethernet Cabling ...........................................................................................................B-11
Uplink Switches, Crossover Cables, and MDI/MDIX Switching .............................B-11
Cable Quality ......................................................................................................... B-12
Glossary
Index
viii Contents
Figure 2-1. DG814 Front Panel ..................................................................................2-2
Figure 2-2. DG814 Rear Panel ................................................................................... 2-3
Figure 2-3. Typical installation ....................................................................................2-5
Figure 4-1. Login window ...........................................................................................4-2
Figure 4-2. Browser-based configuration main menu ................................................4-3
Figure 4-3. Setup Wizard menu for Dynamic IP address ...........................................4-5
Figure 4-4. Setup Wizard menu for Fixed IP address ................................................4-7
Figure 4-5. Setup Wizard menu for PPPoE login accounts ........................................4-9
Figure 5-1. Gateway Status screen ............................................................................5-2
Figure 5-2. Gateway Statistics screen ........................................................................5-4
Figure 5-3. PPPoE Status screen ...............................................................................5-5
Figure 5-4. Ping Status screen ................................................................................... 5-6
Figure 5-5. Attached Devices menu ...........................................................................5-6
Figure 5-6. Backup Settings menu .............................................................................5-7
Figure 5-7. Set Password menu ................................................................................. 5-8
Figure 5-8. Gateway Upgrade menu ..........................................................................5-9
Figure 6-1. Port Forwarding Menu. ............................................................................ 6-1
Figure 6-2. Security menu. ......................................................................................... 6-5
Figure 6-3. LAN IP Setup Menu .................................................................................6-7
Figure 6-4. Remote Management menu. ................................................................. 6-10
Figure 6-5. Static Route Summary Table ..................................................................6-12
Figure 6-6. Static Route Entry and Edit Menu ..........................................................6-12
Figure 6-7. UPnP Menu ............................................................................................6-14
Figure B-1. Three Main Address Classes .................................................................. B-3
Figure B-2. Example of Subnetting a Class B Address ............................................. B-5
Figure B-3. Single IP Address Operation Using NAT ................................................ B-8
ix
x
About This Guide
Congratulations on your purchase of the NETGEAR™ Model DG814 DSL Modem Internet
Gateway.
The Model DG814 gateway provides a secure connection for multiple personal computers (PCs) to
the Internet through an internal ADSL modem that is normally intended for use by a single PC.
Note: If you are unfamiliar with networking and routing, refer to Appendix B,
“Networks and Routing Basics”, to become more familiar with the terms and procedures
used in this manual.
Technical Support
For help with any technical issues, contact Customer Support, 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.
Related Publications
As you read this document, you may be directed to various RFC documents for further
information. An RFC is a Request For Comment (RFC) published by the Internet Engineering
Task Force (IETF), an open organization that defines the architecture and operation of the Internet.
The RFC documents outline and define the standard protocols and procedures for the Internet. The
documents are listed on the World Wide Web at www.ietf.org and are mirrored and indexed at
many other sites worldwide.
For more information about address assignment, refer to the IETF documents RFC 1597, Address
Allocation for Private Internets, and RFC 1466, Guidelines for Management of IP Address Space.
About This Guide xi
Reference Manual for the Model DG814 DSL Modem Internet Gateway
For more information about IP address translation, refer to RFC 1631, The IP Network Address
Translator (NAT).
xii About This Guide
Reference Manual for the Model DG814 DSL Modem Internet 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 command-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 Formats
This guide uses the following formats to highlight special messages:
Note: This format is used to highlight information of importance or special interest.
Caution: This format is used to highlight information that will help you prevent
equipment failure or loss of data.
Warning: This format is used to highlight information about the possibility of injury 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.
About This Guide xiii
Chapter 1
Introduction
This chapter describes the features of the NETGEAR Model DG814 DSL Modem Internet
Gateway.
About the Gateway
The Model DG814 DSL Modem Internet Gateway with 4-port switch connects your local area
network (LAN) to the Internet using a built-in ADSL modem.
The Model DG814 gateway provides you with multiple Web content filtering options, plus
browsing activity reporting and instant alerts via e-mail. Parents and network administrators can
establish restricted access policies based on time-of-day and address keywords, and share
high-speed ADSL Internet access for up to 253 personal computers. Network Address Translation
(NAT) protects you from hackers.
With minimum setup, you can install and use the gateway within minutes.
Key Features
The Model DG814 gateway provides the following features:
• Easy, web-based setup for installation and management
– Smart Wizard automatically senses Internet connection type
• Security
– Parental control of web browsing using Web Address (URL) keyword blocking
– Auditing and e-mail reporting of web browsing activities
Introduction 1-1
Reference Manual for the Model DG814 DSL Modem Internet Gateway
– Blocking can be scheduled by day and time
– Network Address Translation (NAT) hides local PCs from the Internet
– Incoming port forwarding and DMZ for specific services
• Built in 4-port 10/100 Mbps Switch
– Allows LAN connections at 10 megabits per second (Mbps) or 100 Mbps
– Autosensing for Ethernet (10BASE-T) or Fast Ethernet (100BASE-Tx) transmissions
– Half-duplex or full-duplex operation
• Direct connection to the wide area network (WAN) using the built-in ADSL modem
• Protocol Support
– IP routing
– Network Address Translation (NAT) for operation with a single static or dynamic IP
address
– Dynamic Host Configuration Protocol (DHCP) server for dynamically assigning
network configuration information to PCs on the LAN
– DHCP client for dynamically obtaining configuration information from the Internet
Service Provider (ISP)
– DNS Proxy for simplified configuration
– PPP over Ethernet (PPPoE) support
– PPP over ATM (PPPoA) support
– Classical IP support
• Login capability
Automatically executes user login for:
– Automatically executes user login for PPP over Ethernet or PPP over ATM accounts
• Easy, web-based setup for configuration
• Front panel LEDs for easy monitoring of status and activity
• Flash memory for firmware upgrade
• Free technical support seven days a week, twenty-four hours a day
1-2 Introduction
Reference Manual for the Model DG814 DSL Modem Internet Gateway
Content Filtering
With its content filtering features, the Model DG814 gateway prevents objectionable content from
reaching your PCs. Its content filtering features include:
• Content filtering by domain or keyword
The Model DG814 gateway uses content filtering to enforce your network’s Internet access
policies. The gateway allows you to control access to Internet content by screening for
keywords within Website names or newsgroup names.
• Logging of inappropriate use
You can configure the Model DG814 gateway to log access to Web sites and to e-mail the log
to you. You can also configure the gateway to send an immediate alert e-mail message to you
whenever a local user attempts to access a blocked Web site.
Security
The Model DG814 gateway is equipped with several features designed to maintain security, as
described in this section.
• PCs Hidden by NAT
Network address translation (NAT) opens a temporary path to the Internet for requests
originating from the local network. Requests originating from outside the LAN are discarded,
preventing users outside the LAN from finding and directly accessing the PCs on the LAN.
• Port Forwarding with NAT
Although NAT prevents Internet locations from directly accessing the PCs on the LAN, the
gateway allows you to direct incoming traffic to specific PCs based on the service port number
of the incoming request, or to one designated “DMZ” host computer. You can specify
forwarding of single ports or ranges of ports.
Autosensing 10/100 Ethernet
With its internal, 4-port 10/100 switch, the Model DG814 gateway can connect to either a 10 Mbps
standard Ethernet network or a 100 Mbps Fast Ethernet network. The local LAN interface is
autosensing and is capable of full-duplex or half-duplex operation.
Introduction 1-3
Reference Manual for the Model DG814 DSL Modem Internet Gateway
The Model DG814 gateway incorporates Auto UplinkTM technology (also called MDI/MDIX).
Each LOCAL Ethernet port will automatically sense whether the Ethernet 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 router, 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
TM
Uplink
will accommodate either type of cable to make the right connection.
TCP/IP
The Model DG814 gateway supports the Transmission Control Protocol/Internet Protocol (TCP/
IP) and Routing Information Protocol (RIP).
For further information about TCP/IP, refer to Appendix B, “Networks and Routing Basics.”
• IP Address Sharing by NAT
The Model DG814 gateway 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 Model DG814 gateway dynamically assigns network configuration information,
including IP,
using the Dynamic Host Configuration Protocol (DHCP). This feature greatly simplifies
configuration of PCs on your local network.
gateway, and domain name server (DNS) addresses, to attached PCs on the LAN
• 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.
• PPP over Ethernet (PPPoE and PPP over ATM (PPPoA)
PPP over Ethernet is a protocol for connecting remote hosts to the Internet over an always-on
connection by simulating a dial-up connection. This feature eliminates the need to run a login
program such as Entersys or WinPOET on your PC.
Easy Installation and Management
You can install, configure, and operate the Model DG814 DSL Modem Internet Gateway within
minutes after connecting it to the network. The following features simplify installation and
management tasks:
1-4 Introduction
Reference Manual for the Model DG814 DSL Modem Internet Gateway
• Animated installation assistant
The Resource CD contains an animated installation assistant to guide you through set up.
• 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 Model DG814 gateway automatically senses the type of Internet connection, asking you
only for the information required for your type of ISP account.
• Visual monitoring
The Model DG814 gateway’s front panel LEDs provide an easy way to monitor its status and
activity.
• Remote Management
The Model DG814 gateway can be configured to allow management from selected IP
addresses on the WAN.
Maintenance and Support
NETGEAR offers the following features to help you maximize your use of the Model DG814
gateway:
• Flash memory for firmware upgrade
• Free technical support seven days a week, twenty-four hours a day
Introduction 1-5
Reference Manual for the Model DG814 DSL Modem Internet Gateway
1-6 Introduction
Chapter 2
Setting Up the Hardware
This chapter describes the Model DG814 DSL Modem Internet Gateway hardware and provides
instructions for installing it.
Package Contents
The product package should contain the following items:
• Model DG814 DSL Modem Internet Gateway
• AC power adapter, 18 V AC output (varies by region)
• Category 5 (Cat 5) Ethernet cable, straight-through wiring
• Telephone cable
• Microfilters (quantity and type vary by region)
• Model DG814 Resource CD, including:
—This guide
— Application Notes
• DG814 DSL Modem Internet Gateway Installation Guide
• Warranty Card
• Support Information Card
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 gateway for repair.
Setting Up the Hardware 2-1
Reference Manual for the Model DG814 DSL Modem Internet Gateway
Local Network Hardware Requirements
The Model DG814 DSL Modem Internet Gateway is intended for use in a network of personal
computers (PCs) that are interconnected by twisted-pair Ethernet cables.
PC Requirements
To install and run the Model DG814 gateway over your network of PCs, each PC must have an
installed Ethernet Network Interface Card (NIC) and an Ethernet cable. If the PC will connect to
your network at 100 Mbps, you must use a Category 5 (CAT5) cable such as the cable provided
with your gateway.
Access Requirement
The Model DG814 DSL Modem Internet Gateway contains a built-in ADSL modem, which
connects directly to an ADSL service provider.
The Gateway’s Front Panel
The front panel of the Model DG814 gateway (Figure 2-1) contains status LEDs.
Figure 2-1. DG814 Front Panel
2-2 Setting Up the Hardware
Reference Manual for the Model DG814 DSL Modem Internet Gateway
You can use some of the LEDs to verify connections. Table 2-1 lists and describes each LED on
the front panel of the Model DG814 gateway. These LEDs are green when lit.
Table 2-1. LED Descriptions
Label Activity Description
Power On
Off
Te st On
Off
ADSL
(Wide Area
Network)
Local
(Local Area
Network)
On (Green)
Blink (Green)
Blink (Yellow)
Off
On (Green)
Blink (Green)
On (Yellow)
Blink (Yellow)
Off
Power is supplied to the gateway.
Power is not supplied to the gateway.
The system is initializing.
The system is ready and running.
The ADSL port has linked with the service provider.
Data is being transmitted or received over the ADSL port.
The ADSL port is attempting to train with the service provider.
The ADSL port is not making contact with the service provider.
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.
The Gateway’s Rear Panel
The rear panel of the Model DG814 gateway (Figure 2-2) contains port connections and a power
switch.
Figure 2-2. DG814 Rear Panel
Setting Up the Hardware 2-3
Reference Manual for the Model DG814 DSL Modem Internet Gateway
The rear panel contains the following features (from left to right):
• Power switch
• 18 V AC power adapter outlet
• Four Local (LAN) Ethernet ports for connecting the gateway to the local PCs
• Factory Default Reset push-button
• ADSL (WAN) port, with two identical connectors, for connecting the gateway to the ADSL
service provider. One of the ports can be connected to a telephone using an external
microfilter.
Connecting the Gateway
Before using your gateway, you need to do the following:
• Connect your local Ethernet network to the Local port(s) of the gateway (see page 2-5).
• Connect the line from your ADSL service provider to the ADSL port of the gateway (see page
2-6).
• Connect the power adapter (see page 2-7).
2-4 Setting Up the Hardware
Reference Manual for the Model DG814 DSL Modem Internet Gateway
A typical installation is shown in Figure 2-3, below
Figure 2-3. Typical installation
Connecting to your Local Ethernet Network
Your local network (LAN) will attach to the four Local gateway ports shown in Figure 2-2. The
Local ports operate at either 10 Mbps (10BASE-T) or 100 Mbps (100BASE-Tx), depending on the
Ethernet interface of the attached PC, hub, or switch. For any connection which will operate at 100
Mbps, you must use a Category 5 (Cat 5) rated Ethernet cable, such as the cable included with the
gateway.
Setting Up the Hardware 2-5
Reference Manual for the Model DG814 DSL Modem Internet Gateway
The Model DG814 gateway incorporates a four-port switch for connecting to your local network.
To connect the Model DG814 gateway to your LAN:
• Connect up to four PCs directly to any of the four Local ports of the gateway using standard
Ethernet cables.
If your local network consists of more than four computers, you will need to connect your gateway
to another hub or switch:
• Connect any Local port of your gateway to any port of an Ethernet hub or switch using a
standard or crossover Ethernet cable.
Because the gateway incorporates Auto UplinkTM technology (also called Auto MDI/MDI-X),
it is capable of automatically sensing the polarity of the Ethernet connection. You can
therefore connect to the other hub’s normal or uplink port using a standard or crossover
Ethernet cable. The Local port of your Model DG814 gateway will automatically configure
itself properly.
Connecting to Your ADSL Service and Telephone Provider
The ADSL and telephone connections may vary by region.
ADSL through a modular RJ-11 wall jack.
Note: The wall jack attached to the ADSL port of the gateway must provide the ADSL
signal on the inner pair of wires (pins 2 and 3 of the 4-pin jack). If this is not the case, a
swapper (not included) is necessary to move the connection to the inner pair.
To install the Model DG814 gateway directly to the wall jack without installing a telephone:
1. Connect the provided telephone cable to the wall jack.
2. Connect the other end of the telephone cable to the ADSL port on the gateway.
To install both the Model DG814 gateway and a telephone:
1. Plug the “LINE” connection from the included microfilter into the wall jack.
2. Connect the “DSL” jack of the microfilter to the ADSL port of your gateway using the
telephone cable provided.
3. Connect the “PHONE” side of the microfilter to your telephone, using your existing telephone
cable.
2-6 Setting Up the Hardware
Reference Manual for the Model DG814 DSL Modem Internet Gateway
ADSL through other wall jacks
1. Plug the “LINE” connection from the included microfilter into the wall jack.
2. Connect the “DSL” jack of the microfilter to the ADSL port of your gateway using the
telephone cable provided.
3. Connect the “PHONE” side of the microfilter to your telephone, using your existing telephone
cable.
A telephone can be attached to the second RJ-11 jack on your gateway. However, a microfilter
should be connected between the gateway and the telephone. Be careful to connect the microfilter
according to its markings, with the “LINE” side plugged into the gateway and the “PHONE” side
connected to your telephone.
If you have additional telephones, you will need to purchase additional microfilters and connect
them between the telephones and the wall jack. A microfilter is required for each telephone on the
line.
Note: Microfilters are required to isolate your ADSL signal from your telephone signal.
If microfilters are not used, or if they are connected backward, you may notice a
“ticking” noise on your telephone, and the performance of your ADSL line may be
affected.
Connecting the Power Adapter
To connect the power adapter to the gateway:
1. Plug the connector of the power adapter into the 18 V AC adapter outlet on the rear panel of
the gateway.
2. Plug the other end of the adapter into a standard wall outlet.
3. Set the gateway’s Power switch to the ON position.
4. Verify that the PWR LED on the gateway is lit.
Verifying Power
After applying power to the gateway, complete the following steps to verify that power is correctly
applied:
1. When power is first applied, verify that the Power LED comes on.
Setting Up the Hardware 2-7
Reference Manual for the Model DG814 DSL Modem Internet Gateway
All LEDs will briefly be tested.
2. After approximately 10 seconds, verify that:
• The Test LED is not lit.
• The Local port LEDs are lit for any local ports that are connected.
3. If a port’s LED is lit, a link has been established to the connected device. If a Local port is
connected to a 100 Mbps device, verify that the port’s LED is green. If the port is 10 Mbps, the
LED should be yellow.
You are now ready to begin configuration of your network, as described in the following chapter.
2-8 Setting Up the Hardware
Chapter 3
Preparing Your Network
This chapter describes how to prepare your PC network to connect to the Internet through the
Model DG814 DSL Modem Internet Gateway and how to order broadband Internet service from
an Internet service provider (ISP).
Note: If an ISP technician configured your PC during the installation of a broadband
modem, or if you configured it using instructions provided by your ISP, you may need to
copy the current configuration information for use in the configuration of your gateway.
Write down this information before reconfiguring your PCs. Refer to
Configuration Information (Windows)” on page 3-10 or “Obtaining ISP Configuration
Information (Macintosh)” on page 3-11 for further information.
“Obtaining ISP
Preparing Your Personal Computers for IP Networking
Personal Computers access the Internet using a protocol called TCP/IP (Transmission Control
Protocol/Internet Protocol). Each PC on your network must have TCP/IP installed and selected as
its networking protocol. If a Network Interface Card (NIC) is already installed in your PC, then
TCP/IP is probably already installed as well.
Note: In this chapter, we use the term “PC” to refer to personal computers in general, and not
necessarily Windows computers.
Most PC operating systems include the software components you need for networking with TCP/
IP:
•Windows® 95 or later includes the software components for establishing a TCP/IP network.
• Windows 3.1 does not include a TCP/IP component. You need to purchase a third-party TCP/
IP application package such as NetManage Chameleon.
Preparing Your Network 3-1
Reference Manual for the Model DG814 DSL Modem Internet Gateway
• Macintosh Operating System 7 or later includes the software components for establishing a
TCP/IP network.
• All versions of UNIX or Linux include TCP/IP components. Follow the instructions provided
with your operating system or networking software to install TCP/IP on your computer.
In your IP network, each PC and the gateway must be assigned a unique IP addresses. Each PC
must also have certain other IP configuration information such as a subnet mask (netmask), a
domain name server (DNS) address, and a default gateway address. In most cases, you should
install TCP/IP so that the PC obtains its specific network configuration information automatically
from a DHCP server during bootup. For a detailed explanation of the meaning and purpose of
these configuration items, refer to “
The Model DG814 gateway is shipped preconfigured as a DHCP server. The gateway assigns the
following TCP/IP configuration information automatically when the PCs are rebooted:
• PC or workstation IP addresses—192.168.0.2 through 192.168.0.254
• Subnet mask—255.255.255.0
• Gateway address (the gateway)—192.168.0.1
These addresses are part of the IETF-designated private address range for use in private networks.
Appendix B, “Networks and Routing Basics.”
Configuring Windows 95, 98, and ME for IP Networking
As part of the PC preparation process, you need to manually install and configure TCP/IP on each
networked PC. Before starting, locate your Windows CD; you may need to insert it during the
TCP/IP installation process.
Install or Verify Windows Networking Components
To install or verify the necessary components for IP networking:
1. On the Windows taskbar, click the Start button, point to Settings, and then click Control Panel.
2. Double-click the Network icon.
The Network window opens, which displays a list of installed components:
3-2 Preparing Your Network
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