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ZyAIR B-500 Wireless Access Point User’s Guide
System Security 15-5
Table 15-2 Menu 23.4 System Security : IEEE802.1x
FIELD DESCRIPTION
Idle Timeout The ZyAIR 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.
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 and set the Key Management Protocol to 802.1x.
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.
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.
Data Privacy for
Broadcast/Multicast
packets
This field allows you to choose TKIP (recommended) or WEP for broadcast and
multicast (“group”) traffic if the Key Management Protocol is WPA or WPA-PSK.
All unicast traffic is automatically encrypted by TKIP when WPA or WPA-PSK Key
Management Protocol is selected.
WPA
Broadcast/Multicast
Key Update Timer
The WPA Broadcast/Multicast 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 Broadcast/Multicast Key Update
Timer is also supported in WPA-PSK mode. The ZyAIR default is 1800 seconds (30
minutes).