We had to throw together a solution very quickly for a remote office we were standing up, so we leveraged our existing RAP environment to extend our network to this physical location. This site is rather large and build like a fortress, so a single RAP with it's wireless won't be enough. From the RAP, we have a small 8-port switch with (3) AP-325's running off of it.
I noticed in testing, when they were configured as standard Campus APs, the would often show "ID" flags, indicating they were not getting their config and they were inactive. I decided to convert them to RAPs instead, using the internal IP of the controller since we are tunneling all traffic through the RAP. This seems to have stabilized the connectivity.
So far this is working, but I'm curious, has anybody else leveraged a solution like this to get a remote location up and running? If so, any pointers or suggestions?