6to4 borkeness (Was: Google and IPv6)

[Carlos Friacas]

On Wed, 19 Mar 2008, David Malone wrote:

> On Wed, Mar 19, 2008 at 08:31:07AM -0700, Tim wrote:
>>> Please give up on the debugging, 6to4 is not worth it.
>
>> I expected as much.
>
> FWIW, my experience with 6to4 is more positive than Jeroen's. It
> works almost all the time for me, except when someone breaks the
> 2.0.0.2.ip6.arpa zone, but that hasn't happened for months. Mind
> you, many of the ISPs that I regurally use have their own relays
> or a relay close by.

Hi,

Anyone seen a geographical map containing 6to4 relays ? :-)


> For me, debugging 6to4 hasn't proved that much harder than anything
> else. You can find the relay at your end by tracerouting to
> 192.88.99.1.  It's true that the reverse path is hard to debug, but
> that's the same no matter what you're using. It was a little easier
> in IPv6 when we had RH0 (though I know Jeroen prefers looking glasses
> for this sort of thing).
>
>> PS - Another poster's suggestion to have Google set up a 6to4 interface
>>      might be a good one.  Until most of the Internet has transitioned
>>      to non-tunneled access (in what, 50 years?), this would certainly
>>      improve connectivity for users like me.

The best shot we have to get "most of the Internet" moving is v4 blocks 
scarcity. But this might not be enough if a free unregulated address 
market gets into the global picture.


> A 6to4 relay inside Google might help either (maybe they have one
> already?) - that could smooth out the reverse path.

Would this approach scale...?
Perhaps more pressure on transit providers to find better (and untunneled) 
IPv6 paths would also be helpful... ;-)


> 	David.
>

Cheers,

-------------------------------------------------------------------------
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, Portugal, Europe                          www.geant2.net
Tel: +351 218440100 Fax: +351 218472167
www.fccn.pt
-------------------------------------------------------------------------
           The end is near........ see http://ipv4.potaroo.net
"Internet is just routes (241744/992), naming (billions) and... people!"

    Esta mensagem foi enviada de:
    This message was sent from:
 		 2001:690:2080:8004:250:daff:fe3b:2830

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 due to any error, please notify us via
e-mail or by telephone +351 218440100 and delete it immediately.