ZyAIR B-500 Wireless Access Point User’s Guide

 

 

 

Table 6-4 Wireless: WPA-PSK

 

 

 

 

 

 

 

LABEL

 

DESCRIPTION

 

 

 

 

 

 

 

 

Pre-Shared Key

The encryption mechanisms used for WPA and WPA-PSKare the same. The only

 

 

 

difference between the two is that WPA-PSKuses 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

Specify how often wireless stations have to reenter usernames and passwords in order

 

 

Timer (in

to stay connected. Enter a time interval between 10 and 9999 seconds. The default

 

 

seconds)

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

The WPA Group Key Update Timer is the rate at which the AP (if using WPA-PSK

 

 

Update Timer

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-PSKmode. 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.

 

 

 

 

 

 

 

6.8Wireless 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.

Wireless Security

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