6to4 in Internet aaaa records

Gert Doering gert at space.net
Sat Oct 4 12:49:00 CEST 2014


On Thu, Oct 02, 2014 at 10:31:25PM -0400, Jeroen Massar wrote:
> > <http://www.azdes.gov>)... 2002::cf6c:8846
> That is an invalid 6to4 address as it would have a 6to4 gateway of

Uh, what?

Who are you and what happens to the Jeroen I know who understands IPv6,
and knows that 6to4 addresses do (unlike Teredo) not call a reference
to the gateway in there...  and that the biggest part of the actual
*problem* with 6to4 is exactly the anycast nature of it's current

> One would think with all the "IPv6 consultants" in the US, that .gov
> agencies would be able to get that part right...
> Though, better point them out that 6to4 is a bad idea in general anyway.

I certainly agree with that sentiment, though.  6to4 should never ever
(NEVER!) show up in public DNS for servers, as "just stick to IPv4" is 
guaranteed to give better service.

Gert Doering
        -- NetMaster
have you enabled IPv6 on something today...?

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