Am Tue, 2 Aug 2022 23:02:12 +0000
schrieb Andy Smith <andy@strugglers.net>:
> Why do you believe that having their customer premises equipment do
> this for v6 is any different from having it do default NAT for v4?
It is additional work and it breaks certain protocols. IPv6 doesn't
need NAT, so why should an ISP do it?
IPv6 is not backward compatible with IPv4. IPv6 and IPv4 are usually implemented in a dual stack implementation where you have addresses from both protocols. IPv4 is used to transfer data with IPv4 servers and IPv6 is used to transfer data with IPv6 servers.
I understand SPI firewalls to protect the customer and don't allow
servers inside, but NAT isn't something that is needed to reach that.
Additionally, I have NEVER seen a provider that does NAT or IPv6 yet.