3 ms·So is UDP hole punching the only modern way to traverse firewall?by fomine3 5y agoSo is UDP hole punching the only modern way to traverse firewall?can16358p 5y agoWhich is a very hacky way. I wouldn't rely on it for anything serious as it might break at any time.zajio1am 5y agoWhy? It seems like simple, reliable and trivial. It is not hacky, it is essentially how stateful outgoing-only firewall is supposed to work for UDP.