Which devices don't support IPv6 at this point?
Then there's a veritable black hole of various crappy security cameras, IP phones, and WiFi printers. And they can live for a veeeeery long time.
And I don't think I've ever seen a hotel network with IPv6 support. And I've actually seen a hotel (in Palo Alto) that gives out real IPv4 addresses to clients.
This is also about the Czech government sites removing IPv4 support. What devices that would be used to access site won't support IPv6? They all do today.
This said, by then, maybe the core OS will not be metal, but Linux on all these device and we'll get top ipv6 support.
More likely, in 2032, well have a bunch of crap, built from very old SOCs running Linux 2.4.
“DAD, YOUR SPRINKLERS ARE HACKING THE RECYCLING COLLECTION TIMETABLES AGAIN”
(spend enough time around places like this, though, and one could easily imagine this being a thing in 2032)
That said, I have to imagine that there probably are plenty of those devices that do access Czech internal services at least.
It's 2024 and Fidonet still works.
Nobody's sunsetting IPv4. It will fade into obscurity on its own as IPv6 adoption increases and IPv4 addresses become increasingly hard to get, as it should.