User Manual for the NETGEAR RangeMax™ Wireless USB 2.0 Adapter WPN111
•802.1x
802.1x defines
•Cisco LEAP
Light Extensible Authentication Protocol (LEAP) is a proprietary 802.1x EAP method developed by Cisco for use on wireless networks that use Cisco 802.11 wireless devices. It features dynamic per user per session WEP keys.
These security technologies are discussed below.
WEP Overview
The absence of a physical connection between nodes makes the wireless links vulnerable to eavesdropping and information theft. To provide a certain level of security, the IEEE 802.11 standard has defined two types of authentication methods, Open System and Shared Key. With Open System authentication, a wireless PC can join any network and receive any messages that are not encrypted. With Shared Key authentication, only those PCs that possess the correct authentication key can join the network. By default, IEEE 802.11 wireless devices operate in an Open System network. Recently,
WEP Authentication
An access point must authenticate a station before the station can associate with the access point or communicate with the network. The IEEE 802.11 standard defines two types of WEP authentication: Open System and Shared Key.
•Open System Authentication allows any device to join the network, assuming that the device SSID matches the access point SSID. Alternatively, the device can use the “ANY” SSID option to associate with any available access point within range, regardless of its SSID.
•Shared Key Authentication requires that the station and the access point have the same WEP Key to authenticate. These two authentication procedures are described below.
The WEP Open System authentication process is illustrated in below.
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