111Appendix e GlossaryPPPoE (Point-To-Point Protocol over Ethernet)/PPPoA (Point-To-Point Protocol over ATM)Methods of secure data transmission.RouterA central device that manages the data traffic of the network.Subnet MaskA set of four numbers configured like an IP address used to create IP addressnumbers used only within a particular network.SSIDSee “ESSID.”TCP/IP (Transmission Control Protocol/Internet Protocol)The standard protocol for data transmission over the Internet.WAN (Wide Area Network)A network that connects computers located in separate areas, (i.e., differentbuildings, cities, countries). The Internet is a WAN.WiFi Alliance (Wireless Fidelity Alliance)An industry group that certifies cross-vender interoperability and compatibilityof IEEE 802.11b/g wireless networking products and promotes the standard forenterprise, small business, and home environments.WLAN (Wireless Local Area Network)A group of computers and other devices connected wirelessly in a small area.
