Chapter 1 What’s New for FortiOS 5.0 : New features in FortiOS 5.0 Patch 5 : FortiAP LAN port support : Bridging with the FortiAP’s SSID(s)
  
Bridging with the FortiAP’s SSID(s)
Bridging the LAN port with the FortiAP’s SSID(s) allows combines traffic from both sources to provide a single broadcast domain for the wired and wireless users.
This configuration has the following features:
The IP addresses for LAN clients come from the DHCP server that is serving the wireless clients.
Traffic from LAN clients is bridged to the VLAN used by the SSID to send traffic to the controller.
Wireless and LAN clients are on the same network and can communicate locally, via the FortiAP.