Detailed Wireless client logging

[Pericynthion]

Whats the best way to get any more detailed info on the wireless client establishment / failure process. I can see the "wireless log" page under the system log, but this is primarily showing me DHCP request/ACKs, when I'm looking for the actual 802.11x establishment.

I've got a couple of clients that keep 'flapping' and I'm trying to figure out if its the client end or the router disconnecting. I had a search and a play with the cmd line, but couldnt find anything obvious

Thanks in advance.