I have successfully implemented wireless guest access using 4402 WLC as the Anchor and 5508 as Foreign. The Anchor controller also provides dhcp services to guest clients. The 5508 is LAGged and there is no issue with the guests traffic separated from corporate. At a remote site, there is a 4402 WLC using LAG and also acting as a Foreign controller. But when a client connects to the guest WLAN, it obtains a corporate dhcp address instead of the dhcp address assigned from the Anchor controller. The guest WLAN setting is the same as with the 5508 controller i.e. DHCP server override is ticked and the management IP address of the Anchor controller is specfied. Also DHCP Addr required is ticked. Could anyone explain why the 4400 controller is not forwarding dhcp requests to the anchor controller and instead sending to the corporate dhcp server.
it doesn't seem that the client is getting anchored. there is a mobile announce, which will happen when a client joins, and the WLC checks it's peers to see if there is already an entry.
What I do see on the Foreign is: DHCP successfully bridged packet to DS.
I don't see any of the other messages that would indicate the WLC is trying to anchor the client at all.
Can you post the output of:
show wlan < wlan ID > - from both the Anchor and the Foreign that are not working?
show mobility summary - from both the Anchor and the Foreign that are not working?