OT:Wireless Controller Module Problem

Dear Experts,

I am not an expert on the wireless side of things not even close. I have a
router (3945) running the WLCM. The problem I am facing is that the AP is
not registering with the WLCM. Note that I have configured the 2 interfaces
(AP-Manager/Mgmt) interface with appropriate IP addresses, and are within
the same subnet as the AP. Note that I am able to reach the Mgmt ip of the
controller as well as AP-Manager from the AP, however no registration is
taking place.

The scenario is as follows:
AP--Edge Switch--Core--Router--WLCM

Note that the Core is running the DHCP and has option 43 pointing to the
management IP address, I even tried the AP Manager interface of the
controller using the (option 43 ip 192.168.55.12).

Can someone help propose/suggest a document, or give me a hint?

Thanks

-- 
KJ
Blogs and organic groups at http://www.ccie.net