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98 © 2001- 2006 D-Link Corporation/D-Link Systems, Inc. All Rights Reserved.
D-Link Unified Access System User Manual
Configuring Valid Access Point Settings
You can add an AP into the list of Valid APs from the Administration > Basic Setup > Valid
AP tab, as Figure 45 shows, or you can add an AP from the AP Authentication Failures or
Rogue AP/RF Scan lists.
Pre-Authentication If you select WPA/WAP2 Enterprise, you can enable Pre-Authentication.
Click the Pre-Authentication check box if you want WPA2 wireless clients
to send pre-authentication packets. The pre-authentication information is
relayed from the access point the client is currently using to the target
access point.
Enabling this feature can help speed up authentication for roaming clients
who connect to multiple access points. Only clients that connect by using
WPA2 can use this feature. It is not supported by the original WPA.
Pre-Authentication
Limit
Enter the number of pre-authentications that can be in progress
simultaneously on an AP. The limit prevents too much load on the RADIUS
server. This does not prevent the pre-authentication from being attempted
again when the load is lighter. A value of 0 represents no limit.
Note: This field is only available if you access the network through the AP
Profile or Network page under Advanced Configuration.
Key Forwarding Select the check box to allow APs to forward the Pairwise Master Key
(PMK) for the wireless client to other APs in case the client roams to
another AP.
Note: This field is only available if you access the network through the AP
Profile or Network page under Advanced Configuration.
Key Caching Hold
Time
Enter the amount of minutes a PMK will be held by the AP. This applies to
PMKs generated by RADIUS, those that come from pre-authentication, and
those that are forwarded to the AP. Note that this time limit can be
overridden by RADIUS if the RADIUS server returns a longer time in the
Session-Timeout attribute for a particular user. The valid values of this are
from 1-1440 minutes.
Note: This field is only available if you access the network through the AP
Profile or Network page under Advanced Configuration.
Table 14. Static WPA
Field Description