ZyXEL Communications G-2000 Plus User Manual

ZyAIR G-2000 Plus User’s Guide

Chapter 7 Wireless Security

96

Figure 33   Wireless: WPA-PSK

The following table describes the labels in this screen.

Table 25   Wireless: WPA-PSK

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). 

Note: 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).