

Currently, work in the IEEE is addressing several areas having to do with access authentication for 802.11 wireless networks. Later versions of the standard have added the use of 802.1x RADIUS Server for authenticating users and a mechanism for creating “dynamic” session keys. WEP requires a shared key to protect messages, and the original standard assumed that these keys would be configured in the devices.

The original 802.11 standard included support for “Wired Equivalent Privacy” to protect messages going over the air. IEEE 802.11 is the wireless LAN Standard. This paper looks at 802.11 security issues, the existing and proposed technologies, and scenarios for use. The 802.11 standard has specified the use of 802.1x RADIUS Server authentication mechanisms for authenticating user access to the LAN. The intent of these standards is to provide a wireless Ethernet capability. The IEEE 802.11 group has defined standards for WiFi including both radio standards and networking protocol standards. Wireless networking, more than any other networking technology, needs an authentication and access control mechanism to ensure security. There is no physical method to restrict a system in radio range to be a member of a wireless network. There is no wiring to define membership in a network. It presents a set of unique issues based on the fact that the only limit to a wireless network is the radio signal strength. Wireless (WiFi) is emerging as a significant aspect of networking. WLAN Access Control and RADIUS Server Authentication
