Re: An alternative to 6to4 and teredo

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

> OTOH, I think tunnel broker is a good way to provide default route for a 6to4
> site.

That would make the site be multi-addressed with a 6to4 prefix
plus a prefix that was assigned by the tunnel broker.

That raises questions of what source address filtering might be appropriate
at the tunnel server - should they accept any source address?
That would seem counter to the arguments about 6to4 relays introducing
new ways to spoof source addresses - the tunnel server would
in essence to the same.

Unless there was a way to register an alternate source address prefix
with the tunnel broker as part of configuring the tunnel broker ...

  Erik