Distributed Rendering with master not on the slaves LAN?

[Ankerite]

Is it possible?
I have all this render nodes (with FairSaaS license) and i have never used them :(
Or do I need to somehow talk ITdepartment into adding me on the office network? I don't know if this is possible - obviously i know nothing about how this LAN thing works.

[Ondra]

they do not have to be on same LAN in case they have public IP. But IMHO the best solution would be to set up VPN