So, I'm pretty sure I've heard people involved in carrier-grade NAT, NAT444, etc discussing what they have to in order to comply with requirements that IP:port

So, I'm pretty sure I've heard people involved in carrier-grade NAT, NAT444, etc discussing what they have to in order to comply with requirements that IP:port tuples be usable to track back to their customers.. Nice try at a silver lining tho. :)