Re: V6 still not supported

[John Curran <jcurran () istaff org>]

On 21 Mar 2022, at 12:42 PM, John Curran <jcurran () istaff org> wrote:
> ...
>
> This is all quite well covered by the IPv6 recommendation document - https://datatracker.ietf.org/doc/html/rfc1752 
> <https://datatracker.ietf.org/doc/html/rfc1752>
> (a document which probably should be required reading for those characterizing the history of IPv6) 

Just for the record, IPv6 is definitely far from perfect…   There were things put in the specification that had no real 
world experience (some of which has since been deprecated), and some cases where tradeoffs were made that missed huge 
opportunities. 

However, neither the extra cruft nor the missed opportunities really got in the way of deployment – we are the present 
situation because we made a decision on the next IP protocol (IPv6) despite lacking the required "a straightforward 
transition plan from IPv4” – that was left as an exercise for the reader.  Absent a clear bridge from here to there, it 
shouldn’t be surprising that there was no serious deployment for more than a decade… 

After several years of non-solutions out of the IETF, the "very large" network operator community (who realized that 
they were indeed going to need IPv6 for their broadband and mobile deployments) waded in and came up with workable IPv6 
transition solutions.  To this day, IPv6 remains essential to those with very large and growing networks, and less so 
for those with modest or no growth. 

FYI,
/John