06-14-2013 07:22 AM
This is not do-able with a Campus AP (CAP). It is possible with RAP and Instant APs. Any controller based AP will require controller connectivity to serve clients.
06-15-2013 09:28 AM - edited 06-15-2013 09:28 AM
RAPs typically run in Tunnel Mode (default) or Split-Tunnel. In this mode they must talk to the controller. They can also run in Bridge Mode and the SSID can be set to stay up even after the controller connectivity is lost. There are trade-offs as some features are lost when running in bridge mode. Be sure to read the Users Guide for a description of the different options in Bridge Mode (persistent, always, and backup modes).
06-16-2013 11:42 PM
The forwarding mode should be bridge and operation mode could be always persistence or back up as per your requirement
Syed Murad Ali
ACMP ACMA CCNA