Re: [GLOBAL-V6] IPV4 to IPv6 migration

[Tim Chown <tjc@ecs.soton.ac.uk>]

On Tue, Jun 03, 2008 at 04:14:14PM +0200, Gert Doering wrote:
> 
> Just advertise a second prefix via RA from your v6 router, and watch your
> machines happily auto-configure two global v6 addresses...
> 
> Now, whether the combination of "multiple source addresses and multiple
> destination addresses" usually leads to "the optimum pair being used for
> a given connection" is a completely different question - and as far as
> I understand, *that* part is really lacking.

Yes, it does, or did when we tried it in 6NET.

http://www.6net.org/publications/deliverables/D3.6.1.pdf
http://www.6net.org/publications/deliverables/D3.6.2.pdf

There are caveats of course, like existing long-running applications,
but we renumbered a small enterprise at the network layer following the
RFC4192 procedure.

Also though it expired through lack of interest, the following text still
makes (I think :) some good points on IPv6 renumbering:

http://www.watersprings.org/pub/id/draft-chown-v6ops-renumber-thinkabout-05.txt

It would be interesting to rerun the experiments we did in 6NET again now.

But as Alain and others have noted, renumbering is not just about network
renumbering; the devil lies in the details elsewhere.

-- 
Tim