ZyXEL Vantage CNM User Guide - Page 118

Chapter 5 Device Network Settings Table 34 Wireless Card: WPA-PSK (continued) LABEL DESCRIPTION Idle Timeout (Seconds) 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. WPA Group Key Update Timer (Seconds) 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. Table 35 Wireless Card: WPA LABEL DESCRIPTION Security Select WPA from the drop-down list. ReAuthenticati Specify how often wireless stations have to resend user names and on Timer passwords in order to stay connected. Enter a time interval between 10 (Seconds) and 65535 seconds. Idle Timeout (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. Authentication Databases WPA Group Key Update Timer (Seconds) 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. 118 Vantage CNM User's Guide