nanog mailing list archives

Re: IANA 6to4 assignment status


From: Lars Prehn <lprehn () mpi-inf mpg de>
Date: Mon, 2 Aug 2021 17:12:28 +0200

I see, thanks for the explanation.

One follow-up question: Why is the designation "6to4" rather than "IANA"? I would have expected the latter, as 2002::/16---similarly to the individual parts of 2001::/23---is listed under IANA's IPv6 Special-Purpose Address Registry.

Thanks in advance,

Lars

[1] https://www.iana.org/assignments/iana-ipv6-special-registry/iana-ipv6-special-registry.xhtml

On 02.08.21 16:56, Valdis Klētnieks wrote:
On Mon, 02 Aug 2021 11:57:54 +0200, Lars Prehn said:

Is there a reason why the status of 2002::/16 in IANA's IPv6 unicast
assignments list [1] is ALLOCATED (with '6to4' as designation and the
note field indicating reservation) rather than RESERVED?
It can probably be moved back to 'reserved' once we're *sure* that 6to4
has finally been stamped out, never to return.  But I'm sure that *some*
ISP or company out there is still using it as their main strategy for
migrating to IPv6.





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