Chapter 6 Deploying Wireless Networks for FortiOS 5.0 : Access point deployment : Discovering and authorizing APs
  
Discovering and authorizing APs
After you prepare your FortiGate unit, you can connect your APs to discover them using the discovery methods described earlier. To prepare the FortiGate unit, you need to
Configure the network interface to which the AP will connect.
Configure DHCP service on the interface to which the AP will connect.
Optionally, preauthorize FortiAP units. They will begin to function when connected.
Connect the AP units and let the FortiGate unit discover them.
Enable each discovered AP and configure it or assign it to an AP profile.