Microsoft MN-820 manual Help Protect Your Network from Unauthorized Access

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Help Protect Your Network from Unauthorized Access

Because wireless networks use radio signals, it is possible for other wireless network devices outside your immediate area to pick up the signals and either connect to your network or capture the network traffic. To help prevent unauthorized connections or the possibility of eavesdroppers listening in on your network traffic, do the following:

OPlace the base station toward the center of your home. This decreases the strength of the signal outside your home.

OUse media access control (MAC) filtering. You can use MAC filtering to grant or deny users the ability to connect to your network based on the MAC addresses of the adapters they are using. For information about MAC filtering, see Broadband Network Utility Help.

OEnable wireless security on your network. You can enable two types of wireless security on your network:

O Wired Equivalent Privacy (WEP). WEP provides 64-bit or 128-bit encryption. When you enable WEP, you establish a WEP key that scrambles or “encrypts” the data being transmitted between wireless nodes so that it is decipherable only by computers that have the WEP key. In addition, only users who know the network WEP key can join your network and use your Internet connection.

O Wi-Fi Protected Access™ (WPA). Like WEP, WPA provides data encryption and enforces user authentication. When you enable WPA, however, you establish a WPA passphrase instead of a key. Although WPA is a more sophisticated form of encryption than WEP, you can only enable it on computers running Windows XP operating system with Service Pack 1 installed and the WPA Support Patch. You can download the Windows XP Support Patch for WPA at www.support.microsoft.com.

Note You cannot enable both types of wireless security on your network. You must choose either WEP or WPA. If you decide to enable WPA, make sure all the clients on your network meet the specified system requirements.

For more information about WEP and WPA, see Broadband Network Utility Help.

42Microsoft Broadband Networking Wireless Notebook Kit User’s Guide

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Contents Page Avertissement Contents Using an Internet Connection over a Network Contents Page About Your Wireless Notebook Kit Your Wireless Base StationUPnP Standards and Your Wireless Base Station Base Station Ports, Status Lights, and the Restore ButtonIntroduction Using the Base Station Stand Resetting the Base StationTo attach the stand To detach the standYour Wireless Notebook Adapter Restoring Factory Default SettingsTo restore the base station to factory default settings Adapter Status Lights CardBus TechnologyWindows XP or Windows Windows 98, Windows 98 SE, and Windows MeAbout Wireless Radio Connections Types of Wireless NetworksPlacement of Wireless Components Adjusting the Base Station Antenna Understanding Wireless Transmission StandardsAbout Wired Ethernet Connections Ethernet CablesSetup Typical SetupGather Components, Tools, and Information If… Do this first…Run the Setup Wizard to Set Up the Base Station Connect the Base StationConfigure the Base Station Insert the Adapter into Your Computer Configure Your Adapter Test Your NetworkWhat’s Next? Setting Up the Base Station Wirelessly To set up the base station wirelesslyPage Custom setup Base Station Setup Establish the Base Station PasswordOpen the Base Station Management Tool Establish Your Internet Settings Establish Your Wireless Settings Establish Your Wireless Security SettingsCustomize Network Settings Configure Your ComputerTest your Internet Connection Access Point Setup Connect the Base Station to a ComputerEstablish the Base Station Password Set the Base Station to Access Point Mode Page Network activities Using an Internet Connection over a Network Logging on to Your NetworkTo log off and log back on to your network Using the Broadband Network Utility To start the Broadband Network UtilityTo refresh the Network Devices list To remove an inactive device from the Network Devices listUsing Files and Folders over a Network Make your files and folders available to the networkTo share a folder or drive on your computer in Windows XP To share a folder or drive on your computer in WindowsAccess shared files To access shared files on other computersUsing a Printer over a Network Using Other Peripheral Devices over a Network About Reading E-Mail Messages on a NetworkPlaying Games on Your Network and on the Internet To set up an ad hoc network in Windows XP Creating a Computer-to-Computer Ad Hoc NetworkJoining an Available Wireless Network To join an available network in Windows XPPage Monitoring Your Network View StatusView Network Devices To refresh the network device listView Adapter Settings To view adapter settingsTo upgrade software, drivers, or firmware Updating Software, Drivers, and FirmwareHelp Protect Your Network from Computer Viruses Help Protect Your Network from HackersHelp Protect Your Network from Unauthorized Access Troubleshooting Setup and Hardware ProblemsSetup does not recognize my wireless base station Setup does not recognize my wireless notebook adapterIf your base station is connected wirelessly If your base station is connected with an Ethernet cableTroubleshooting To clone a MAC address Troubleshooting Network and Internet Problems Can’t stay connected to my wireless networkTo disable 802.1x authentication in Windows XP Troubleshooting Page Troubleshooting My network is slow Troubleshooting Page Printing and File Sharing Issues Can’t print to a networked printerPage Troubleshooting If the file is stored on a Windows XP-based computer Click OK to save the changesInternet Connection Type To determine which connection type your ISP providesGeneral Internet Settings Dynamic IP Dhcp SettingsTo locate your Internet settings Host NameStatic IP Settings To locate your static IP address settings Windows XPTo locate your static IP address settings Windows PPPoE Settings Workgroup NameTo determine your workgroup name in Windows XP or Windows Wireless Network Name Wireless Security SettingsTo determine your workgroup name in Windows Me and Windows Getting Help Technical Support OptionsRegulatory Information United States Radio and TV Interference RegulationsCanadian Radiocommunication Regulations Technical Specifications Base StationTo +40 deg C To +35 deg C System Requirements END-USER License Agreement for Microsoft Software General Provisions Limited Warranty Contrat DE Licence Utilisateur Final Pour Logiciel Microsoft Dispositions Générales Garantie Limitée Page Glossary Page Glossary Page Glossary Page Index Page Index Typical Setup base station, 11 preparing for My Network Settings