What’s New in v4.0 MR3 : FortiManager VM licensing changes
 
FortiManager VM licensing changes
With FortiManager v4.0 MR3 the following changes have been made to FMG-VM:
Automatic fifteen (15) day evaluation license
Removal of requirement to have FMG-VM contact FortiGuard Distribution Servers (FDS) for license activation
Stackable license model for FMG-VM license add-ons
License can be applied through the FMG-VM CLI.
See “FortiManager VM”.