Hello Viraj,
I am not sure what is the problem. Let me describe in points what I know and what I don't know and please confirm YES/NO each of these points.
I know:
2) by the GUI in this hardware you installed Bacula SD,
3) by the GUI in this hardware you installed Bacula Director.
I don't know:
2) Where are you downloaded Bacula Director plugin for FreeNAS? (I can't find any, so far)
3) Do you have your own Bacula clients in your network?
Thank you in advance for answers to above points.
Best regards.
Marcin Haba (gani)