LAN via gray IP?

Question

Computer networks

Hey! The question is, I need to set up a LAN with a computer. my computer and that computer are connected to the same provider, we both have gray IPs. from that computer my responds if I enter the external gray ip. all 4 packages reach without problems. so how can this be done? programs like Hamachi, Tunngle, etc. do not help because of the gray IP.

Answer 1

install TeamViewer and make a vpn connection between computers

Answer 2

Frankly, the scheme described in the question is not entirely clear. The provider gives you a gray address, the other computer also gives a gray address. On the Internet, you all go out with some kind of white address. If the ISP allows you to freely communicate with other computers on its network, then what's the problem?