6to4 borkeness (Was: Google and IPv6)

[Carlos Friacas]

On Wed, 19 Mar 2008, Tim wrote:

>> Would this approach scale...?
>> Perhaps more pressure on transit providers to find better (and
>> untunneled) IPv6 paths would also be helpful... ;-)
>
> Please correct me if I'm wrong, but if both end points are using 6to4,
> doesn't the data route directly between the hosts over v4 routes?  Those
> scale right now, right?

My scale question was related to implying that every ISP/AS (or at least) 
every content provider should install a 6to4 relay.


> Obviously not optimal, but going from native v6
> to 6to4 in either direction is painful, right?  The only trick would be
> with DNS.  A big organization could advertize 2002 addresses to 2002
> clients, and native addresses to native clients, in the hope that
> usually the HTTP transport would be over a similar address range.
> Probably wouldn't work in a lot of cases, but it might reduce the
> percentage of cross over traffic.

I would never stick 2002: stuff onto DNS. I fully agree with Jeroen, 
keep servers out of 6to4 clouds.


> cheers,
> tim
>

Cheers,

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Carlos Friac,as                                            See:
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