Meanwhile some ISPs are still not offering IPv6, such as Orange Belgium.
My ISP publicly supports IPv6, but I've never gotten it to work properly, and none of the technical support I've been able to been forwarded to knows what's wrong either. Colleagues using the same ISP has the same problem, so doesn't seem to be an isolated incident.
I'm sure there are more people out there in the same situation.
>someone will again complain about the address format, without realizing that shoving in extra address bits on an IPv4 datagram is already a new protocol
So you are having all the pains of transitioning to a new Internet Protocol, but none of the benefits of having an actually huge address space.
You set a bit, and if set it's routed using 6 octlets. If the bit isn't set, it's routed via 1.1.x.x.x.x.
Yes, legacy can only reach 1.1.x.x.x.x.
Done.
Whether it's the addition of one octet or twelve octets, you are nevertheless introducing a new Internet Protocol, and therefore you are going to face the reality of introducing a new Internet Protocol.
To think otherwise is delusional and is the reason why the "Godwin's law of networking" has become sort of a meme.
My mobile connectivity comes via Mobile Vikings which are now part of Proximus - also IPv6 there, and I love their excellent service.