Address dynamic IP addresses without requiring a restart with new configuration

[s8sato]

S. Sato, [2025/02/04 16:18]
The requirement for a "static" IP address in the testnet prerequisites (https://wiki.sora.org/running-a-sora-testnet-node.html#prerequisites) could be relaxed. More precisely, the IP address can be dynamic, but each time a peer reconnects, it must update its advertised address and restart.

S. Sato, [2025/02/04 16:18]
This is due to the way peers remember and gossip other peers' addresses. Instead of adopting the counterpart’s address from the actual TCP stream, peers accept the self-reported advertised address, store it, and share it with other peers. The reason for using self-reported advertised addresses is that an address extracted from an actual TCP stream may not be valid for other peers.

S. Sato, [2025/03/10 15:03]
Just a thought, but alternatively, we could derive the counterpart's address from the TCP stream, prohibiting private IP addresses to expect every IP address should be globally valid