74 Using Networks (LAN or Wireless)NOTE: Selecting the connection method labeled This computer connects directly to the Internet enables theintegrated firewall provided with Windows XP Service Pack 2 (SP2).4 Complete the checklist.5 Return to the Network Setup Wizard and follow the instructions on the screen.Wireless Local Area Network (WLAN)A WLAN is a series of interconnected computers that communicate with each other over the air wavesrather than through a network cable connected to each computer. In a WLAN, a radio communicationsdevice called an access point or wireless router connects network computers and provides Internet, ornetwork, access. The access point 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 to your WLAN• A network cable with the network (RJ-45) connectorChecking Your Wireless Network CardDepending on what you selected when you purchased your computer, the computer has a variety ofconfigurations. To confirm that your computer has a wireless network card and to determine the type ofcard, use one of the following:• The Start button and the Connect To option• The order confirmation for your computerStart Button and Connect To Option1 Click the Start button.2 Point to Connect To, and then click Show all connections.If Wireless Network Connection does not appear under LAN or High-Speed Internet, you may not havea wireless network card.
