ZyXEL Communications ZyAIR G-2000 Plus, Руководство пользователя

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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
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).
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).