D-Link DWL-3500AP Administration Guide - Page 165

Glossary W are organized in an extended service set (ESS). WAN A Wide Area Network (WAN) is a communications network that spans a relatively large geographical area, extending over distances greater than one kilometer. A WAN is often connected through public networks, such as the telephone system. It can also be connected through leased lines or satellites. The Internet is essentially a very large WAN. WEP Wired Equivalent Privacy (WEP) is a data encryption protocol for 802.11 wireless networks. All wireless stations and access points on the network are configured with a static 64-bit (40-bit secret key + 24-bit initialization vector (IV)) or 128-bit (104-bit secret key + 24-bit IV) Shared Key for data encryption. It uses a RC4 stream cipher to encrypt the frame body and CRC of each 802.11 frame before transmission. WLAN Wireless Local Area Network (WLAN) is a LAN that uses high-frequency radio waves rather than wires to communicate between its nodes. WMM Wireless Multimedia (WMM) is a IEEE technology standard designed to improve the quality of audio, video and multimedia applications on a wireless network. Both access points and wireless clients (laptops, consumer electronics products) can be WMM-enabled. WMM features are based on is a subset of the WLAN IEEE 802.11e draft specification. Wireless products that are built to the standard and pass a set of quality tests can carry the "Wi-Fi certified for WMM" label to ensure interoperability with other such products. For more information, see the WMM page on the Wi-Fi Alliance Web site: http://www.wi-fi.org/ OpenSection/wmm.asp. Wi-Fi A test and certification of interoperability for WLAN products based on the IEEE 802.11 standard promoted by the Wi-Fi Alliance, a non-profit trade organization. WINS The Windows Internet Naming Service (WINS) is a server process for resolving Windows-based computer names to IP addresses. It provides information that allows these systems to browse remote networks using the Network Neighborhood. WPA Wi-Fi Protected Access (WPA) is a Wi-Fi Alliance version of the draft IEEE 802.11i standard. It provides more sophisticated data encryption than WEP and also provides user authentication. WPA includes TKIP and 802.1X mechanisms. WPA2 WiFi Protected Access (WPA2) is an enhanced security standard, described in IEEE 802.11i, that uses Advanced Encryption Standard (AES) for data encryption. Wireless Networking Framework There are two ways of organizing a wireless network: • Stations communicate directly with one another in an Ad hoc Mode network, also known as an independent basic service set (IBSS). • Stations communicate through an Access Point in an Infrastructure Mode network. A single access point creates an infrastructure basic service set (BSS) whereas multiple access points The original WPA uses Temporal Key Integrity Protocol (TKIP) for data encryption. WPA2 is backwards-compatible with products that support the original WPA. WPA2, like the original WPA, supports an Enterprise and Personal version. The Enterprise version requires use of IEEE 802.1X security features and Extensible Authentication Protocol (EAP) authentication with a RADIUS server. 165