Linksys WCG200 manual Appendix B Configuring Wireless Security in Windows XP

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Does the Cable Gateway pass PPTP packets or actively route PPTP sessions? The

Cable Gateway allows PPTP packets to pass through.

Is the Cable Gateway cross-platform compatible? Any platform that supports Ethernet and TCP/IP is compatible with the Cable Gateway.

How many ports can be simultaneously forwarded? Theoretically, the Cable Gateway can establish 520 sessions at the same time, but you can only for- ward 10 ranges of ports.

Does the Cable Gateway replace a modem? Is there a cable modem in the Cable Gateway? Yes. The Cable Gateway has an integrated cable modem, so this product will replace your current cable modem.

What are the Cable Gateway’s advanced features? The Cable Gateway’s advanced features include Filters, Forwarding, and DMZ host.

How do I get mIRC to work with the Cable Gateway? Set port forwarding to 113 for the computer on which you are using mIRC. If you are experiencing dif- ficulty after setting the port forwarding, try changing the Direct Client-to- Client (DCC) settings to a range from 1024 to 1030 on the DCC option and Forwarding page of the Web-based Setup Utility.

If your questions are not addressed here, refer to the contact information on the last page of this manual, or online at support.linksys.com.

Wireless-G Cable Gateway

Appendix B: Configuring Wireless Security in Windows XP

Note: WEP Encryption is an additional data security measure and not essential for Gateway operation.

An acronym for Wired Equivalent Privacy, WEP is an encryption scheme used to protect your wireless data communications. WEP uses a combination of 64- bit or 128-bit keys to provide access control to your network and encryption security for every data transmission. To decode a data transmission, each point in a network must use an identical 64-bit or 128-bit key. Higher encryption lev- els mean higher levels of security, but due to the complexity of the encryption, they may mean decreased network performance.

You may also have heard the term “40-bit” used in conjunction with WEP Encryption. This is simply another term for 64-bit WEP encryption. This level of WEP encryption has been called 40-bit because it uses a 40-bit secret key along with a 24-bit Initialization Vector (40 + 24 = 64). Wireless vendors may use either name. Linksys uses the term “64-bit” when referring to this level of encryption.

If possible, make sure your wireless network is functioning before attempting to configure WEP.

A 128-bit WEP encrypted wireless network will NOT communicate with a 64- bit WEP encrypted wireless network. Therefore, make sure that all of your wireless devices are using the same encryption level. All wireless devices com- plying with the 802.11b or 802.11g standard will support 64-bit WEP.

Configure WEP in the Wireless Setup section of “Chapter 5: Using the Gateway’s Web-based Utility.” Go to Features Setup tab. Click on Wireless, then Setup. Use the WEP Key in the Key 1 field to configure WEP in Windows XP.

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Contents Wireless-G Cable Gateway Copyright & Trademarks Table of Contents Features Common Problems and Solutions Frequently Asked QuestionsIntroduction EnvironmentalIP Addresses An Introduction to LANs and WANsNetwork Setup Overview Getting to Know the Cable GatewayCable Gateway’s Back Panel Ports Reset Button Rebooting the Cable GatewayCable Gateway’s Front Panel LEDs USB Icon Connecting the Cable GatewayUSB Cabling OverviewUSB Port Connection Installing the USB Driver for Windows Installing the USB Driver for Windows Millennium Installing the USB Driver for Windows On the USB Port Connection to finish the setup Installing the USB Driver for Windows XP Windows 95, 98, and Me Configuring the PCsWindows Go to Using the Cable Gateway’s Web-based UtilityWindows XP Accessing the Web-Based Utility Setup TabInternet Setup Optional Settings required by some ISPs Basic Wireless SettingsNetwork Setup Wireless TabBit Encryption Wireless SecurityWireless Network Access Advanced Wireless Advanced Wireless SettingsFirewall EnabledVPN Passthrough Security TabsTimed Access Access Restrictions TabsWebsite Blocking Filter Internet Traffic IP Address RangePort Range Applications & Gaming Tabs Port Range ForwardingDMZ Port TriggeringDiagnostics Administration TabsSecurity Advanced Advanced AdministrationInformation Status TabsStatus ConnectLocal Network Appendix a Troubleshooting Common Problems and SolutionsFrequently Asked Questions Wireless-G Cable Gateway Appendix B Configuring Wireless Security in Windows XP Click on the Network Connections icon Figure B-1Figure B-4 Figure B-8 Appendix C Installing the TCP/IP ProtocolFor Windows 95, 98, and Me TCP/IP installation is now completeFor Windows NT, 2000, and XP Figure D-3Figure D-6 Appendix E GlossaryWireless-G Cable Gateway Wireless-G Cable Gateway Wireless-G Cable Gateway Wireless-G Cable Gateway Wireless-G Cable Gateway Environmental Appendix F SpecificationsAppendix H Contact Information Copyright 2003 Linksys, All Rights Reserved