NETGEAR CG814WG manual USB Port, Protocol Support, Easy Installation and Management

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Hardware Manual for the Model CG814WG Wireless Cable Modem Gateway

USB Port

A USB connection for your computer eliminates the need for installing an Ethernet card.

Protocol Support

The CG814WG supports the Transmission Control Protocol/Internet Protocol (TCP/IP). Appendix D, "Networks, Routing, and Firewall Basics" provides further information on TCP/IP.

•IP Address Sharing by NAT

The CG814WG 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 CG814WG 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.

•DNS Relay

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.

Easy Installation and Management

You can install, configure, and operate the CG814WG 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.

•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 CG814WG when your are connect on the LAN or when you are connected over the Internet via the remote management function.

Hardware Overview

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Contents NETGEAR, Inc Trademarks Voluntary Control Council for Interference Vcci Statement Page Contents Appendix B Contents Vii Viii Contents Audience About This ManualTypographical Conventions Special Message Formats Chapter Hardware Overview Powerful, True FirewallAbout the CG814WG Built-in Cable ModemConfigurable Auto Uplink Ethernet Connection 802.11g Standards-based Wireless NetworkingUSB Port Easy Installation and ManagementProtocol Support Hardware Overview Gateway’s Front Panel What’s in the Box?USB CG814WG Rear Panel Gateway’s Rear PanelHardware Overview Preparing Your Computers for TCP/IP Networking Chapter Preparing Your NetworkInstall or Verify Windows Networking Components Configuring Windows 98 SE and Me for TCP/IP NetworkingPreparing Your Network Locate your Network Neighborhood icon Enabling DhcpPrimary Network Logon is set to Windows logon Verifying TCP/IP Properties Selecting Windows’ Internet Access MethodConfiguring Windows 2000 or XP for TCP/IP Networking Dhcp Configuration of TCP/IP in Windows XP Dhcp Configuration of TCP/IP in Windows XP orPreparing Your Network TCP/IP details are presented on Support tab Verify that the Obtain an IP address Dhcp Configuration of TCP/IP in WindowsPreparing Your Network Obtain an IP address automatically is selected Verifying TCP/IP Properties for Windows XP What Is Your Configuration Information? Are Login Protocols Used?Verifying the Readiness of Your Internet Account Select the Gateway tab Obtaining ISP Configuration Information from Your ComputerRestarting the Network Preparing Your Network Basic Functions Appendix a TroubleshootingTest LED Stays On Power LED Not OnLocal Link LEDs Not On Troubleshooting a TCP/IP Network Using a Ping Utility Troubleshooting the ISP ConnectionTesting the LAN Path to Your Gateway Cable Link LED Not OnTesting the Path from Your PC to a Remote Device Erasing the Current/Restoring the Factory Configuration Troubleshooting Appendix B Glossary Internet, which are published as RFCs Request for Comment at Information, a block of data, and a checksum Glossary What You Will Need Before You Begin Appendix C Configuring Wireless Security in Windows XPObserve Location and Range Guidelines Two Basic Operating Modes CG814WG Default Wireless Configuration Settings For Windows XP Users Installing a CG814WG Basic Installation InstructionsInstall the CG814WG Wireless Cable Modem Gateway Configure your CG814WG Verify wireless connectivity to your network Interpreting the LED on the CG814WG Wireless Connection IndicatorsColor Condition Description Interpreting System Tray Icon ColorsBasic Troubleshooting Tips Related Publications Basic Router Concepts Appendix D Networks, Routing, and Firewall BasicsRouting Information Protocol What is a Router?IP Addresses and the Internet Figure D-1 Three Main Address Classes Equals NetmaskFigure D-2 Example of Subnetting a Class B Address Subnet AddressingTable D-1. Netmask Notation Translation Table for One Octet Single IP Address Operation Using NAT Figure D-3 Single IP Address Operation Using NAT MAC Addresses and Address Resolution ProtocolDomain Name Server Related DocumentsWhat is a Firewall? IP Configuration by DhcpInternet Security and Firewalls Ethernet Cabling Uplink Switches and Crossover CablesStateful Packet Inspection Cable Quality