NETGEAR CG814WG manual Appendix C Configuring Wireless Security in Windows XP

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Hardware Manual for the Model CG814WG Wireless Cable Modem Gateway

Appendix C Configuring Wireless Security in Windows XP

This section describes how to configure basic wireless security on your Wireless Local Area Network (WLAN) when using Windows XP.

Note: Indoors, computers can easily connect to 802.11 wireless networks at distances of several hundred feet. Because walls do not always block wireless signals, others outside your immediate area could access your network. It is important to take appropriate steps to secure your network from unauthorized access. The CG814WG provides highly effective security features which are covered in the Comcast user manual. Deploy the security features appropriate to your needs.

What You Will Need Before You Begin

You need to verify your computer meets the minimum system requirements and identify the wireless network configuration settings of the WLAN where you will connect before you can configure your wireless pc card and connect.

Observe Location and Range Guidelines

Computers can connect over 802.11 wireless networks indoors at a range which vary significantly based on the physical location of the computer with the CG814WG Wireless Cable Modem Gateway. For best results, avoid potential sources of interference, such as:

Large metal surfaces

Microwaves

2.4 GHz Cordless phones

In general, 802.11 wireless devices can communicate through walls. However, if the walls are constructed with concrete, or have metal, or metal mesh, the 802.11 effective range will decrease if such materials are between the devices.

Configuring Wireless Security in Windows XP

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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