Chapter 14 Managing Devices for FortiOS 5.0 : Endpoint Protection : Modifying the Endpoint Protection replacement messages
  
Modifying the Endpoint Protection replacement messages
If the security policy has Redirect all non-compliant/unregistered FortiClient compatible devices to a captive portal enabled, users of non-compliant devices are redirected to a captive portal that is defined by the Endpoint NAC Download Portal replacement message. There are different portals for Android, iOS, Mac, Windows, and “other” devices. Optionally, you can modify them.
To modify the Endpoint NAC Download Portal
1. Go to System > Config > Replacement Message Group and select Extended View.
2. In the Endpoint Control section select the message that you want to edit.
The replacement message and its HTML code appear in a split screen in the lower half of the page.
3. Modify the text as needed and select Save.