I have 1 2106 wlc 6 1131AG LAPs that are going to be placed in three vlans. All three vlans are created and configured on a 3550G switch.
I created two additional virtual interfaces on the WLC, tagged it with appropriate vlan number and connected the port with untagged vlan identifier to a dot1q enabled trunk port on the 3550 switch. That is,
man int - untagged, port 1
vlan2, tagged -2, port 2,3
vlan3, tagged -3, port 4,5
vlan4, tagged - 3, port 6
and port 1 is connected to a trunk port on the 3550G switch with dot1q.
I am not able to reach the created vlan interfaces on the WLC !?1?!
AFAIK, the dynamic interfaces have to be physically connected, the WLC doesn't act as a switch in that fashion. So you either need to plug in ports 2-6 to the 3550, or re-assign the dynamic interfaces for the VLANs to port 1.