Chapter 10 Wireless LAN

The following table describes the labels in this screen.

Table 63 WIRELESS > Wi-Fi > Security: WPA, WPA2 or WPA2-MIX

LABEL

DESCRIPTION

Name

Type a name to identify this security profile.

 

 

Security Mode

Select WPA, WPA2 or WPA2-MIXfrom the drop-down list.

 

 

ReAuthentication

Specify how often wireless clients have to resend user names and passwords in

Timer

order to stay connected. Enter a time interval between 600 and 65535 seconds.

 

If wireless client authentication is done using a RADIUS server, the

 

reauthentication timer on the RADIUS server has priority.

 

 

Idle Timeout

The ZyWALL automatically disconnects a wireless client from the wireless network

 

after a period of inactivity. The wireless client 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 client 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.

 

Enter a time interval between 600 and 65535 seconds.

 

 

Group Key

The Group Key Update Timer is the rate at which the AP sends a new group key

Update Timer

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 Group Key Update Timer is also supported in WPA(2)-PSKmode.

 

 

PMK Cache

This field is available only when you select WPA2 or WPA2-MIX.

 

When a wireless client moves from one AP’s coverage area to another, it performs

 

an authentication procedure (exchanging security information) with the new AP.

 

Instead of re-authenticating a client each time it returns to the AP’s coverage area,

 

which can cause delays to time-sensitive applications, the AP and the client can

 

store (or “cache”) and use information about their previous authentication.

 

Select Enable to allow PMK (Pairwise Master Key) caching, or Disable to switch

 

this feature off.

 

 

Apply

Click Apply to save your customized settings and exit this screen.

 

 

Cancel

Click Cancel to exit this screen without saving.

 

 

10.8.6 WPA-PSK, WPA2-PSK, WPA2-PSK-MIX

Click WIRELESS > Wi-Fi > Security > Edit. Select WPA-PSK,WPA2-PSK or WPA2- PSK-MIX from the Security Mode list.

 

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ZyWALL 2WG User’s Guide