One thing that I find hard to understand is how you're able to connect to a random peer online with just an IP and port combination. The peer is likely behind a NAT proxy, and never communicated with you to begin with. In my head, NAT shouldn't allow this connection through, or be able to associate the port with the individual peer machine since the connection source (you) is arbitrary.
This is possible with port forwarding. But that's a niche set of peers, who have the power to configure port forwarding on a NAT proxy.
This is possible with port forwarding. But that's a niche set of peers, who have the power to configure port forwarding on a NAT proxy.