ZyXEL Communications Vantage CNM 2.3 User Manual page 118

Chapter 5 Device Network Settings
Table 34 Wireless Card: WPA-PSK (continued)
LABEL
Idle Timeout
(Seconds)
WPA Group
Key Update
Timer
(Seconds)
Table 35 Wireless Card: WPA
LABEL
Security
ReAuthenticati
on Timer
(Seconds)
Idle Timeout
(Seconds)
Authentication
Databases
WPA Group
Key Update
Timer
(Seconds)
118
DESCRIPTION
The Vantage CNM automatically disconnects a wireless station from the
wireless network after a period of inactivity. The wireless station needs
to send the username and password again before it can use the wireless
network again. Some wireless clients may prompt users for a username
and password; other clients may use saved login credentials. In either
case, there is usually a short delay while the wireless client logs in to the
wireless network again.
This value is usually smaller when the wireless network is keeping track
of how much time each wireless station is connected to the wireless
network (for example, using an authentication server). If the wireless
network is not keeping track of this information, you can usually set this
value higher to reduce the number of delays caused by logging in again.
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.
DESCRIPTION
Select WPA from the drop-down list.
Specify how often wireless stations have to resend user names and
passwords in order to stay connected. Enter a time interval between 10
and 65535 seconds.
If wireless station authentication is done using a RADIUS server, the
reauthentication timer on the RADIUS server has priority.
The Vantage CNM automatically disconnects a wireless station from the
wireless network after a period of inactivity. The wireless station needs
to send the username and password again before it can use the wireless
network again. Some wireless clients may prompt users for a username
and password; other clients may use saved login credentials. In either
case, there is usually a short delay while the wireless client logs in to the
wireless network again.
This value is usually smaller when the wireless network is keeping track
of how much time each wireless station is connected to the wireless
network (for example, using an authentication server). If the wireless
network is not keeping track of this information, you can usually set this
value higher to reduce the number of delays caused by logging in again.
Click RADIUS to go to the RADIUS screen where you can configure the
Vantage CNM to check an external RADIUS server.
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.
Vantage CNM User's Guide