ZyXEL Communications ARMOR Z1 NBG6816 User Manual page 93

The following table describes the labels in this screen.
Table 31 Expert > Wireless > Security Mode: WPA/WPA2
LABEL DESCRIPTION
Security Mode Select WPA or WPA2 to enable data encryption.
WPA Compatible This check box is available only when you select WPA2-PSK or WPA2 in the Security
Mode field.
Select the check box to have both WPA2 and WPA wireless clients be able to
communicate with the ARMOR Z1 even when the ARMOR Z1 is using WPA2-PSK or
WPA2.
Group Key Update The Group Key Update Timer is the rate at which the AP (if using WPA-PSK/
Timer WPA2-PSK key management) or RADIUS server (if using WPA/WPA2 key
management) sends a new group key out to all clients. The re-keying process is the
WPA/WPA2 equivalent of automatically changing the WEP key for an AP and all
stations in a WLAN on a periodic basis. Setting of the Group Key Update Timer is
also supported in WPA-PSK/WPA2-PSK mode.
PMK Cache Period This field is available only when you select WPA2.
Specify how often wireless clients have to resend usernames and passwords in order
to stay connected. Enter a time interval between 10 and 999999 minutes.
Note: If wireless client authentication is done using a RADIUS server, the
Pre-Authentication This field is available only when you select WPA2.
Pre-authentication enables fast roaming by allowing the wireless client (already
connecting to an AP) to perform IEEE 802.1x authentication with another AP before
connecting to it. Select Enable to turn on preauthentication in WAP2. Otherwise,
select Disable.
Authentication Server
IP Address Enter the IP address of the external authentication server in dotted decimal notation.
Port Number Enter the port number of the external authentication server.
You need not change this value unless your network administrator instructs you to do
so with additional information.
Shared Secret Enter a password (up to 127 alphanumeric characters) as the key to be shared
between the external authentication server and the ARMOR Z1.
The key must be the same on the external authentication server and your ARMOR Z1.
The key is not sent over the network.
Session Timeout The ARMOR Z1 automatically disconnects a wireless client from the wireless and wired
networks after a period of inactivity. The wireless client needs to send the username
and password again before it can use the wireless and wired networks 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.
Enter the time in seconds from 0 to 999999.
Apply Click Apply to save your changes back to the ARMOR Z1.
Cancel Click Cancel to reload the previous configuration for this screen.
Chapter 11 Wireless LAN
reauthentication timer on the RADIUS server has priority.
ARMOR Z1 User's Guide
93