Chapter 10 Install and System Administration for FortiOS 5.0 : Session helpers : Changing the session helper configuration
  
Changing the session helper configuration
Normally you will not need to change the configuration of the session helpers. However in some cases you may need to change the protocol or port the session helper listens on.
See Also
Changing the protocol or port that a session helper listens on
Disabling a session helper
Session helpers