On 2026-06-16 01:33, Saku Ytti via NANOG wrote:
Does anyone feel responsibility for the dual stack mess we've created? It wasn't here when we found the Internet, and we're going to leave it here after we leave, does not really jive with the whole leave campground cleaner than found it ethos.
It was the most comprehensive solution for the NAT problem. But NAT became the accepted way we connect to the Internet. World + dog knows how to connect to it, troubleshoot it, look at NAT tables on their edge firewall or router. Is NAT still such a severe problem that we needed a different protocol? Ask 1000 NANOG engineers, get 1000 different answers. In practice, no. IPv4 still works. Economics are a slightly different story, but so far, IPv4 space isn't prohibitively expensive. -Brian