Re: 6to4 being replaced by Teredo only? [Re: Tunneling scenarios and mechanisms evaluation]

[Erik Nordmark <Erik.Nordmark@sun.com>]

> Terado is excessively complex for the case of a user who wants IPv6
> capability from an IPv4-only ISP and has the ability to replace the
> NAT box.  Yes, Terado could probably be used in this case instead of
> 6to4; pigs also fly just fine, given sufficient thrust [RFC1925], but
> that doesn't make either of these a good idea.

Since I feel responsible for triggering Pekka's question let me
try to explain myself.

In a world with native, 6to4, and teredo we need to be concerned with
the operational issues of gettting relays deployed to enable communication
between the 3 different universes:
 - native to/from 6to4
 - native to/from teredo
 - 6to4 to/from teredo

Can we simplify the deployment of these so that we can reduce the likelyhood
of ending up with a partitioned IPv6 Internet?
A possibly way to simply this would be to have a single type of relay which
can relay between all three.
Using the same relay hopefully doesn't change how deployed 6to4 routers
work.

   Erik