Connect to two ROS masters from one PC

edit

Hello world,

(This is my first question so that i cannot upload image. ) I'm having a serious networking problem. I am using Ubuntu 20.04 with ROS noetic.

I have three PCs (Server PC, Client PC, and Additional PC)

• Server PC is running ROS master1, it has public IP-based internet (connect to Client PC via LTE)
• Additional PC is also running ROS master2, it has no internet (connect to Client PC via Ethernet)
• Client PC (has private LTE-based internet) wants to connect those masters simultaneously

Is that possible to connect to two ROS masters from one PC?

Thanks.