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ZyAIR B-500 Wireless Access Point User’s Guide
Wireless Security 6-11
Table 6-4 Wireless: WPA-PSK
LABEL DESCRIPTION
Pre-Shared Key
The encryption mechanisms used for WPA and WPA-PSK are the same. The only
difference between the two is that WPA-PSK uses a simple common password,
instead of user-specific credentials.
Type a pre-shared key from 8 to 63 case-sensitive ASCII characters (including spaces
and symbols).
ReAuthentication
Timer (in
seconds)
Specify how often wireless stations have to reenter usernames and passwords in order
to stay connected. Enter a time interval between 10 and 9999 seconds. The default
time interval is 1800 seconds (30 minutes).
If wireless station authentication is done using a RADIUS
server, the reauthentication timer on the RADIUS server has
priority.
Idle Timeout The ZyAIR automatically disconnects a wireless station from the wired network after a
period of inactivity. The wireless station needs to enter the username and password
again before access to the wired network is allowed. The default time interval is 3600
seconds (or 1 hour).
WPA Group Key
Update Timer
The WPA Group Key Update Timer is the rate at which the AP (if using WPA-PSK
key management) or RADIUS server (if using WPA key management) sends a new
group key out to all clients. The re-keying process is the WPA equivalent of
automatically changing the WEP key for an AP and all stations in a WLAN on a
periodic basis. Setting of the WPA Group Key Update Timer is also supported in
WPA-PSK mode. The ZyAIR default is 1800 seconds (30 minutes).
Apply
Click Apply to save your changes back to the ZyAIR.
Reset
Click Reset to begin configuring this screen afresh.
6.8 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.