We have multiple 4404 controllers in the same mobility group. Because our controllers are placed into different buildings and our common SSID is set on WLANs on different VLANs/subnets, I would like to ensure "inter-subnet roaming" occurs in case a client inadvertently roams between access points on controllers in different WLANs (subnets).
Do I have to manually set every controller to be a mobility anchor for the same WLAN? Does a mobility anchor have to be set before "inter-subnet" roaming will occur? (In this case, every controller would be an anchor.)
I have read the section of the 4.0 guide on inter-subnet roaming, mobility anchors, etc. but it is still unclear.