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ZyAIR Wireless Gateway Series User’s Guide
System Security 26-5
Table 26-2 Menu 23.4 System Security : IEEE802.1x
FIELD DESCRIPTION
Idle Timeout
(in second)
The ZyAIR automatically disconnects a client from the wired network after a period of
inactivity. The client needs to enter the username and password again before access to
the wired network is allowed.
This field is activated only when you select Authentication Required in the Wireless
Port Control field. The default time interval is 3600 seconds (or 1 hour).
Key
Management
Protocol
Press [SPACE BAR] to select 802.1x, WPA or WPA-PSK and press [ENTER].
Dynamic WEP
Key Exchange
This field is activated only when you select Authentication Required in the Wireless
Port Control field. Also set the Authentication Databases field to RADIUS Only.
Local user database may not be used.
Select Disable to allow wireless stations to communicate with the access points without
using Dynamic WEP Key Exchange.
Select 64-bit WEP or 128-bit WEP to enable data encryption.
Up to 32 stations can access the ZyAIR when you configure Dynamic WEP Key
Exchange.
This feature is not available on the ZyAIR B-2000.
PSK Type a pre-shared key from 8 to 63 case-sensitive ASCII characters (including spaces
and symbols) when you select WPA-PSK in the Key Management Protocol field.
WPA Mixed
Mode
Select Enable to activate WPA mixed mode. Otherwise, select Disable and configure
Group Data Privacy field.
Group Data
Privacy
Group Data Privacy allows you to choose TKIP (recommended) or WEP for broadcast
and multicast (“group”) traffic if the Key Management Protocol is WPA and WPA
Mixed Mode is disabled. WEP is used automatically if you have enabled WPA Mixed
Mode.
All unicast traffic is automatically encrypted by TKIP when WPA or WPA-PSK Key
Management Protocol is selected.
WPA Group
Key Update
Timer
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. The ZyAIR default is 1800 seconds (30 minutes).