Look online to say, the double side are symmetrical NAT will not be able to (or can only guess, unreliable) make hole;
We are now think mobile phones (assuming the asymmetrical NAT) watch camera (4 g card, is assumed to be symmetric NAT) video , this kind of situation can realize p2p make hole, please do not go (i.e., video streaming server bandwidth)? Thank you

CodePudding user response:

Symmetrical NAT punch holes are through public network to the server,

CodePudding user response:

These public server refers to Stun server?