Is it possible to increase the FG-120G virtual domain range?

The max supported VDOM is 10 for this model and hence this cannot be increased even if you consider applying an additional VDOM license. As a litmus test, the absence of the below command under "config system global" indicates that the device does not support expanding the VDOM license capacity.

# execute upd-vd-license <license key>

I hope this answers your query. 

Thanks

Hello,

Unfortunately it is not possible to increase the maximum limit of virtual domains above 10 (FortiGate 120G). The command "execute upd-vd-license" is not supported by FortiGate 120G hardware platform either.

The best document to refer to is the device datasheet for the specific model. For example, 120G support for the virtual domain is as below:

default/max=10/10

Whereas as per data sheet for 2000E device is as below:

default/max=10/500  //this means that one can request/apply for additional VDOM support extension.

I hope this helps.

Thanks