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Up Topic Who coded UDP hole punching?

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In Response to Caesar
I'm a little bit interested, but in an utter lack of time. If your network implementation isn't as complex as OC's, you might just go for using ICE. That should give you a ready-made server and the magic you need.

Jusy for my understanding: if you use TCP, you do not get to pick your source port, as non-root user, and you get a new one for every connection? That sounds like it would make port prediction difficulty. Also, a firewall may get smart and deny an incoming SYN on an outgoing connection. Does e.g. iptables do this?

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