68 Setting Up and Using NetworksSetting Up a Network1 Click Start→All Programs→Accessories→Communications→NetworkSetup Wizard→Next→Checklist for creating a network.NOTE: Selecting the connection method labeled This computer connectsdirectly to the Internet enables the integrated firewall provided withWindows XP Service Pack 2 (SP2).2 Complete the checklist.3 Return to the Network Setup Wizard and follow the instructions in the wizard.Wireless Local Area NetworkA wireless local area network (WLAN) is a series of interconnected computersthat communicate with each other over the air waves rather than through anetwork cable connected to each computer. In a WLAN, a radiocommunications device called an access point or wireless router connectsnetwork computers and provides Internet, or network access. The accesspoint or wireless router and the wireless network card in the computercommunicate by broadcasting data from their antennas over the air waves.What You Need to Establish a WLAN ConnectionBefore you can set up a WLAN, you need:• High-speed (broadband) Internet access (such as cable or DSL)• A broadband modem that is connected and working• A wireless router or access point• A wireless network card for each computer that you want to connect toyour WLAN• A network cable with a network (RJ-45) connectorChecking Your Wireless Network CardDepending on what you selected when you purchased your computer, thecomputer has a variety of configurations. To confirm that your computer hasa wireless network card and to determine the type of card:• Start button and Connect To option• Check the order confirmation for your computer
