Subject: Re: IPv6 source address selection strategy
To: None <email@example.com>
From: Olaf Seibert <firstname.lastname@example.org>
Date: 02/07/2001 18:44:14
On Wed 07 Feb 2001 at 09:50:32 +0900, email@example.com wrote:
> >>I don't think this is desirable (and IPv4 does not do it like this). Is
> >>there any spec about it?
> > source address selection algorithm for IPv6 is documented in
> > sys/netinet6/IMPLEMENTATION, or
> > http://www.kame.net/dev/cvsweb.cgi/kame/IMPLEMENTATION.
> > (latter one is more recent, but may have some changes made after
> > the current integration).
3ffe:8114:1000:0000:0000:0000:0000:00dd ipng.nl tunnel I
3ffe:0b00:0c18:1fff:0000:0000:0000:0149 freenet6 tunnel
3ffe:2a00:0100:3001:0000:0000:0000:0002 anoncvs.no.netbsd.org D
It is true that the prexix match between anoncvs.no.netbsd.org and the
freenet6 tunnel is slightly longer than with the ipng.nl tunnel.
This provides the disambiguation for step 1:
1. If nonDEP(samescope(D)) is not empty,
choose a longest matching address against D. If more than one
address is longest matching, choose arbitrary one provided that
an address on I is always preferred.
However, this difference is so small that I would say it should not be
> there's a spec about it (draft-ietf-ipngwg-default-addr-select-02.txt)
> but NetBSD/KAME code is not doing this (yet).
I will read that document next.
___ Olaf 'Rhialto' Seibert - rhialto@polder --Soep van de dag, wat zal dat zijn
\X/ land.nl --wat kan dat wezen, beter maar het ergste vrezen -Boy Bensdorp