Chapter 1 What’s New for FortiOS 5.2.1 : Wireless Networking : FortiAP Management : AP Scanning
  
AP Scanning
AP scanning, including rogue AP detection, is now part of WIDS Profiles. It can be found by going to WiFi Controller > WiFi Network > WIDS Profiles. It can also be configured through the CLI:
Syntax
config wireless-controller wids-profile
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set ap-scan {enable | disable}
set ap-bgscan-period <interval>
set ap-bgscan-intv <interval>
set ap-bgscan-duration <interval>
set ap-bgscan-idle <interval>
set ap-bgscan-rpot-intv <interval>
set ap-bgscan-disable-day <day>
set ap-fgscan-repot-intv <interval>
set rogue-scan {enable | disable}
end
end