How to make smb ports open only on vpn adapter in windows 7?

Question

Windows

At work is windows 7 and looks at the Internet.
I created a vpn to my home computer and shared the folders I needed.
How to close the ports of the ball for a non-vpn adapter (that is, so that all ports from the Internet are closed, and with vpn the ports for the ball are open)?
Is there any program or other way to do it?

Answer 1

Regular Windows Firewall - create a rule, then open it and go to the "region" tab.
There you can specify either the network or specific addresses from which traffic is allowed.