Skip to main content
rphulekar
Staff
Staff
June 3, 2015

Technical Note: FortiAP is detected by the FortiGate Controller but is not Authorized

  • June 3, 2015
  • 0 replies
  • 3031 views

Description

In FortiOS 4.3.x, the CAPWAP was enabled by default on all physical and VLAN interfaces. In most cases a FortiAP is only connected to the internal interfaces to create a private WiFI network inside the network.

However, this can be a potential threat as the external WAN interface can easily be exploited by sending the Fake client Hello messages leading to DDOS attack as explained in the following link. http://www.fortiguard.com/advisory/FG-IR-15-002/


Solution

In order to protect from such threats, in FortiOS version 5.0.x and 5.2.x, the CAPWAP should be enabled manually on each physical or VLAN interface where the FortiAP should need to be authorized.

To enable CAPWAP in the Web GUI go to system > network > interface > edit specific interface > enable CAPWAP

Alternatively, in the CLI use:

config system interface
    edit "ravi_vlan111"
        set allowaccess ping https capwap
        set interface "port2"
        set vlanid 111
end


After this has been configured the FortiAP can be authorized and managed by the FortiGate Controller.
Thought Leadership Security Summit. Outpace New Threats with AI - enhanced defense. Tuesday, Septmeber 15, 8:30 AM - 2:30 PM PT. The Golf Club at Newcastle, WA.
Fortinet Flag the Hack. Wednesday, August 26, 9:00 AM - 5:00 PM ET, COSM, Atlanta, GA.
Virtual event | September 2026. SASE summit. The age of autonomous trust. Register here!