70 Setting Up a NetworkNetwork Setup WizardThe Microsoft® Windows® XP operating system provides a Network Setup Wizard to guide you throughthe process of sharing files, printers, or an Internet connection between computers in a home or smalloffice.1 Click the Start button, point to Programs→ Accessories→ Communications, and then click NetworkSetup Wizard.2 On the welcome screen, click Next.3 Click Checklist for creating a network.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 network access.The access point or wireless router and the wireless network card in the computer communicate bybroadcasting 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• Your order confirmation