Pre-authentication is a feature that allows a mobile device to authenticate with other Cisco Access Points (APs) that it may roam to in the future. To achieve this, the mobile station authentication frames are forwarded by the AP to the target AP, over the wired network. The first time a client associates to the network, the client must complete a full authentication. However, if the client knows where it will roam, the client can pre-authenticate to a new AP.
Pre-authentication is similar to IEEE 802.1X. The client performs an authentication through the new AP, which acts as the authenticator. The pre-authentication packets traverse through the existing AP to the new AP. Once the authentication is successful, the pre-authentication completes with a PMK security association established between the client and the new AP.
The fact that mobile stations can authenticate with several APs at any given time creates a considerable load on the authentication server. Also, pre-authentication is performed at the IEEE 802 layer; it does not work across IP subnets. For these reasons, the Cisco Aironet products and Airespace WLAN systems do not support pre-authentication.
Technical product specification / features
WLAN adapters (wireless card) / ACU (Aironet Client Utility)
I can't find documentation to confirm or deny IPv6 support on Mobility Express WLC's (for management of the WLC). I've tried doing the following: config ipv6 enableconfig ipv6 interface address management primary <IPv6 Address> <Prefix Lengt...
HI team, I have to replace a new hardare 8510, the box is here with me, just wondering, I dont have the female console connector converter, in my little experience I have been using only the regular ones, to connect to cat switches, firewalls, ...
In cases when primary and secondary controller is connected as HA. If secondary controller goes down for 10-15 min should I have to manually trigger synchronization form primary controller if secondary become up after 15 min. Please help me on this issue....
In a hazardous environment the Cisco AIR-CAP1552H AP is often used. Sure, it's almost end of Sale, but my question is around the omnidirectional antennas that this model of AP supports.
The AIR-ANT2547V series has three flavours (see datashee...