Restrict different IP

Hi guys,
We connect to the robot remotely, in our current project. Is there possibility the robot to block any command taken from different IP addresses and get commands only from IP we write inside?
For example, I connect to the robot with my global IP 78.111.11.111, and I want robot to be connected only to this 78.111.11.111 IP address and not e.g., 78.222.22.222.
Thanks in advance
Giorgi