Question about "proper" way to run v6/v4 website

[Carlos Friacas]

On Thu, 19 Apr 2007, Tim wrote:

> Hello Carlos,

Hello,


>> Tim, at this point the concept of anything being IPv6-only is not the
>> brightest of ideas. The IPv6 world is still a little drop in the ocean.
>> :-(
>
> Well my point isn't to set up an IPv6-only website.

But if you're setting up an IPv6-only nameserver, that's still against the 
principle of "no IPv6-only stuff at this time"... :-))


>  My point is to
> provide an IPv6 website without negatively impacting customers who have
> IPv6 software but don't realize it.

Yes, i understood that. It's not a new idea, simply because a significant 
number of people already felt the timeout problem you describe :-)


>> You can look for instance at the DNS root zone (some root servers will let
>> you AXFR) and you would see the trend is to use an A record and an AAAA
>> record associated with _some_ of the nameservers. Last time i checked
>> about 90 of TLDs already have at least one of its nameservers associated
>> with an AAAA (too). :-)
>
> That's interesting.

Maybe, but we're still missing more than one hundred TLDs, and we still 
don't have AAAA on the root servers themselves (this bit is finally 
underway, i hope...)


> Ok, so it so perhaps instead of providing only AAAA glue, I should
> provide both A and AAAA (assuming my upstream permits it), and then I
> could try distributing AAAA records for my website only over the IPv6
> server?  This IPv6 DNS server could distribute A as well, in case
> there's some problem with website AAAA connectivity (mentioned
> previously int he thread).

Afaik, the current best practice is having dual-stack servers, answering 
queries both over v4 and v6 transport protocols, independently if AAAAs 
are part of the answer provided through a v4 socket, and As are part of 
answers provided over v6 sockets.


Did you skim through the 6NET website (www.6net.org)?
this issue should be part of some deliverable's content...


> thanks,
> tim
>

Best Regards,

-------------------------------------------------------------------------
Carlos Friac,as                                            See:
Wide Area Network Working Group (WAN)                      www.gigapix.pt
FCCN - Fundacao para a Computacao Cientifica Nacional      www.ipv6.eu
Av. do Brasil, n.101                                       www.6diss.org
1700-066 Lisboa                                            www.geant2.net
Tel: +351 218440100 Fax: +351 218472167
www.fccn.pt
-------------------------------------------------------------------------
  The end is near........ see http://www.potaroo.net/tools/ipv4/index.html
  "Internet is just routes (216399/730), naming (billions) and... people!"


Aviso de Confidencialidade
Esta mensagem e' exclusivamente destinada ao seu destinatario, podendo
conter informacao CONFIDENCIAL, cuja divulgacao esta' expressamente
vedada nos termos da lei. Caso tenha recepcionado indevidamente esta
mensagem, solicitamos-lhe que nos comunique esse mesmo facto por esta
via ou para o telefone +351 218440100 devendo apagar o seu conteudo
de imediato.

Warning
This message is intended exclusively for its addressee.
It may contain CONFIDENTIAL information protected by law. If this
message has been received by error, please notify us via e-mail or by
telephone +351 218440100 and delete it immediately.