NETGEAR manual Chapter Hardware Overview, About the CG814WG, Built-in Cable Modem

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Hardware Manual for the Model CG814WG Wireless Cable Modem Gateway

Chapter 1

Hardware Overview

This chapter describes the features of the NETGEAR CG814WG Wireless Cable Modem Gateway.

About the CG814WG

The NETGEAR CG814WG Wireless Cable Modem Gateway connects directly to the wide area network (WAN) using its built-in cable modem. It has multiple options to connect to your local area network (LAN), including a 4-port 10/100 Mbps Ethernet switch, a USB port and an 802.11g wireless Access Point.

The CG814WG Gateway is a complete security solution that protects your network from attacks and intrusions. Unlike simple Internet sharing routers that rely on Network Address Translation (NAT) for security, the CG814WG uses Stateful Packet Inspection for attack protection and intrusion detection. The CG814WG provides highly reliable Internet access for up to 253 users.

The CG814WG offers the following features.

Built-in Cable Modem

The CG814WG Gateway connects directly the WAN using an integrated cable modem. The modem is DOCSIS 2.0 compliant and compatible with DOCSIS 1.0 and DOCSIS 1.1, guaranteeing that it will work with your local cable service provider.

A Powerful, True Firewall

Unlike simple Internet sharing NAT routers, the CG814WG is a true firewall, using stateful packet inspection to defend against hacker attacks. Its firewall features include:

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 Typographical Conventions About This ManualAudience Special Message Formats Built-in Cable Modem Powerful, True FirewallChapter Hardware Overview About the CG814WGConfigurable Auto Uplink Ethernet Connection 802.11g Standards-based Wireless NetworkingProtocol Support Easy Installation and ManagementUSB Port 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 Verifying the Readiness of Your Internet Account Are Login Protocols Used?What Is Your Configuration Information? Select the Gateway tab Obtaining ISP Configuration Information from Your ComputerRestarting the Network Preparing Your Network Basic Functions Appendix a TroubleshootingLocal Link LEDs Not On Power LED Not OnTest LED Stays On Cable Link LED Not On Troubleshooting the ISP ConnectionTroubleshooting a TCP/IP Network Using a Ping Utility Testing the LAN Path to Your GatewayTesting 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 Observe Location and Range Guidelines Appendix C Configuring Wireless Security in Windows XPWhat You Will Need Before You Begin 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 BasicsIP Addresses and the Internet What is a Router?Routing Information Protocol 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 DocumentsInternet Security and Firewalls IP Configuration by DhcpWhat is a Firewall? Stateful Packet Inspection Uplink Switches and Crossover CablesEthernet Cabling Cable Quality