Basically. I guess part of the issue is that NAT is also used as a security measure, so there are competing interests in making the ports chosen by outgoing UDP packets deterministic to make STUN easy, versus randomizing and restricting return traffic to the original recipient to make attacking harder and STUN impossible.
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Basically. I guess part of the issue is that NAT is also used as a security measure, so there are competing interests in making the ports chosen by outgoing UDP packets deterministic to make STUN easy, versus randomizing and restricting return traffic to the original recipient to make attacking harder and STUN impossible.