Comment by throw0101a
3 hours ago
>> You can have a stateless NAT: device x.x.x.y will get outbound source ports rewritten to (orignal port) << 8 + y.
> And that kind of NAT effectively doesn't exist in practice […]
Anyone using IPv6 ULA and NPT would disagree.
* https://en.wikipedia.org/wiki/IPv6-to-IPv6_Network_Prefix_Tr...
See my reply to your sibling commenter. My comment was not about NAT in general, i.e. I was not denying the very real existence of stateless NAT. Rather, I was disputing the usefulness of the NAPT solution proposed above as a solution to public IPv4 address exhaustion.