TCP Hole Punching Doesn't Work in Symmetric Nat?

T c p hole punching is stateful, only the counters are designed for certain processes to talk to each other. Unlike u d p, youdbes completely stateless. You don't even need to reply. N u d b, you can just do a one way directional nation, as long as you keep it alive. D c b hop ondry, so if i talk to gog through por four, four, three, only google can reply to that hole that i punched. Sor to speak, my brainis filled with holes right now. O kgys, that's enough for tode. See in then. Edor good bye.