Cameron Byrne wrote:
>> The primary reason why the IPv4 -> IPv6 transition is so painful
>> is that it requires everyone one and everything to become multi-homed
>> and every software to perform multi-connect, even though most
>> devices actually just have a single interface.
It was not a problem, because IPv6 was designed to be able to
handle multiple addresses properly with a single interface.
>> It would be so much easier if hosts on the public internet could
>> use one single IPv6 address that contains both, the IPv6 network prefix
>> and the IPv4 host address, and then let the network figure out whether
>> the connect goes through as IPv4 or IPv6 (for IPv6 clients).
> This is largely (not entirely) achieved with nat64 / dns64.
Assuming NAT, we don't need IPv6.
Moreover, unlike nat64, nat44 can be fully transparent end to end.
So, why do we have to be bothered by 6to4?
Masataka Ohta
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