If you want the clients to receive an ip address on the same subnet as the AP:
1. Control Plane Security Must be on (unless you have that AP configured as a RAP)
2. The forwarding mode of the Virtual AP must be bridged
3. The Vlan of the Virtual AP must either be 1, OR match the Native Vlan ID in the AP system profile of that AP to bridge that client's traffic without tagging it.
The wireless client will get an ip address on the same subnet as the AP and the client's traffic will be routed based on the default gateway of that subnet, just like any other client that is plugged in wired.