Chapter 11 Interfaces

The following table describes the WPA-PSK/WPA2-PSK-related wireless LAN security labels.

Table 62 Configuration > Network > Interface > WLAN > Add (WPA-PSK, WPA2- PSK, or WPA/WPA2-PSK Security)

LABEL

DESCRIPTION

Pre Shared Key

The encryption mechanisms used for WPA and WPA-PSKare the

 

same. The only difference between the two is that WPA-PSKuses 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

Specify how often wireless stations have to resend usernames and

Timer

passwords in order to stay connected.

 

Note: If a RADIUS server authenticates wireless stations, the

 

reauthentication timer on the RADIUS server has priority.

 

 

Idle Timeout

The ZyWALL 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.

 

 

Group Key

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

Update Timer

new group key out to all clients. The re-keying process is the WPA

 

equivalent of automatically changing the group 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 mode.

11.6.4 WLAN Add/Edit: WPA/WPA2 Security

With WPA or WPA2 security, each user can have a separate user name and password. The ZyWALL uses an external RADIUS server or the ZyWALL’s internal user account list to authenticate the user names and passwords.

To configure and enable WPA or WPA2 security, click Configuration > Network

>Interface > WLAN > Add (or Edit) to open the WLAN Edit screen. Select WPA-Enterprise,WPA2-Enterprise, or WPA/WPA2-Enterprise as the

Security Type. WPA/WPA2-Enterprisemeans wireless clients can use either WPA or WPA2 to connect to the WLAN interface. The following figure shows the security fields.

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ZyWALL USG 20/20W User’s Guide