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ZyAIR B-3000 User’s Guide
Chapter 6 Wireless LAN 76
1 The AP passes the wireless client’s authentication request to the RADIUS server.
2 The RADIUS server then checks the user's identification against its database and grants
or denies network access accordingly.
3 The RADIUS server distributes a Pairwise Master Key (PMK) key to the AP that then
sets up a key hierarchy and management system, using the pair-wise key to dynamically
generate unique data encryption keys to encrypt every data packet that is wirelessly
transmitted between the AP and the wireless clients
Figure 36 WPA with RADIUS Application Example2
6.8.3 Wireless Client WPA Supplicants
A wireless client supplicant is the software that runs on an operating system instructing the
wireless client how to use WPA. At the time of writing, the most widely available supplicants
are the WPA patch for Windows XP, Funk Software's Odyssey client, and Meetinghouse Data
Communications' AEGIS client.
The Windows XP patch is a free download that adds WPA capability to Windows XP's built-
in "Zero Configuration" wireless client. However, you must run Windows XP to use it.
6.9 Configuring IEEE 802.1x and WPA
To change your ZyAIR’s authentication settings, click the WIRELESS link under
ADVANCED and then the 802.1x/WPA tab. The screen varies by the key management
protocol you select.
You see the next screen when you select No Access Allowed or No Authentication Required
in the Wireless Port Control field.