Firewall Capabilities

I recently connected a UR5 to the local network and now I want to be able to remotely access it over the internet.
I was wondering if there were any firewall or IP/port blocking capabilities built into the UR5 so I could limit the remote access to just port 22?

This function is not supported in high level software at this time. However robot is using linux distribution, so it should be possible to configure firewall rules if you know how to do that on system level.
Might be a candidate for feature request.