Mobility

Settings that must be configured identically to allow wireless mobility between controllers:

LWAPP Transport Mode (layer 2 or layer 3)
config switchconfig mode {L2|L3}

Virtual IP
config interface address virtual 1.1.1.1

Mobility Tunneling Mode (symmetric or asymmetric)
config mobility symmetric-tunneling {enable|disable}

Mobility Security Mode
config mobility secure-mode {enable|disable}

DHCP Proxy
config dhcp proxy {enable|disable}

WLAN
All parameters for the WLAN should be identical (other than security settings), including the WLAN numbering on the WLCs in the mobility group.