nekomata_saren@tg says to 電訊台 user(1.2.3.4) -> router (192.168.0.1) -> server (192.168.0.100): sees 1.2.3.4 user(1.2.3.4) -> peerA (192.168.2.2) -> peer B (192.168.2.1): sees 192.168.2.2