Here's our topology:
1130 series APs -> 4400 series WLC (mgmt vlan 51, client dynamic interface vlan 360) -> Catalyst 4500 series -> DHCP server (vlan id 11)
We appear to be unable to relay DHCP requests from a wireless client on VLAN 360 to the DHCP server on VLAN 11, even though we have specified the DHCP server in both the configuration for this dynamic interface for this vlan and also in the DHCP Override section. The WLC can ping the DHCP server, and the Catalyst has 'ip helper-address' configured for VLAN 360 to the DHCP server's IP. You can manually assign an IP in the segment to the wireless client and it will work fine, so the appropriate vlans appear to have been trunked correctly. However, the problem is that the DHCP server never sees any traffic being relayed to it by the Catalyst. I was hoping someone had some ideas short of me having to sniff the traffic between the WLC and the catalyst to see if the WLC is failing to relay the DHCP broadcasts properly.
WLC's firmware version is 4.1.181. We'd like to avoid moving to 4.2 if we can.