We have a centralized NAC server design with a large number of remote sites. With 4.5, I have heard you need Layer 2 adjancency for the WLC's to the NAC servers even if using OOB? Is this correct? This is a serious limitation if so. thanks
This is correct. You need to have layer 2 adjacency between the CAS Untrusted and WLC. Also, CAS needs to be in Virtual Gateway.
in next major release, we are looking into removing this limitation.