Block connection with Physical IP

Hello, I’m a new user of ZeroTier, and everything works, but I need some help to improve the behaviour.

My case: I can connect with my computers by RDP using the Managed IP and the Physical IP.
How can I block the connection with Physical IP?
I would like to connect my computers using Managed IP, only.
José Carlos

You can use your system’s local firewall to block access to ports & protocols.