Subject: RE: IPv6 routing with non-ppp interfaces
To: 'Richard Braun' <tech-net@NetBSD.org>
From: Konstantin KABASSANOV <Konstantin.Kabassanov@lip6.fr>
List: tech-net
Date: 09/28/2004 12:03:21
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> -----Original Message-----
> From: tech-net-owner@NetBSD.org [mailto:tech-net-owner@NetBSD.org] On
> Behalf Of Richard Braun
> Sent: mardi 28 septembre 2004 11:42
> To: tech-net@NetBSD.org
> Subject: Re: IPv6 routing with non-ppp interfaces
>
> On Tue, Sep 28, 2004 at 11:36:59AM +0200, Konstantin KABASSANOV wrote:
> > >
> > > /sbin/route -q add -inet6 2001:7a8:432d:1:: -prefixlen 64
fe80::%fxp1
> > >
> > > I tried with -interface too, nothing new. I'm using NetBSD/i386
> > > 1.6.2_STABLE
> > > btw.
> > >
> >
> > [KK]
> > A local-link address like "fe80::" seems a little bit strange...
> Supposing
> > that it is the next hop router address over the fxp1 interface, are
you
> > sure the address is the correct one?
> >
> > Konstantin
>
> There is a line about the fe80::%fxp1 destination in the routing table :
> fe80::%fxp1/64                     link#2                         UC
> 0        0      -  fxp1
>
> It should be the correct address. However, I've only tested this kind of
> addresses on PPP interfaces (including gif tunnels). You said your
> configuration was working. How did you configure your routing then ?
>
> --
> Richard Braun
[KK]

This entry means only that all link-local addresses on the fxp1 interface
can be joined through this interface.

If you you have a topology like the following:

---------------------RouterA-------------------------RouterB--------------
--
2001:7a8:432d:2::/64        fe80::....(1) fe80::...(2)
2001:7a8:432d:1::/64

any you want to route packets from 2001:7a8:432d:2::/64 to
2001:7a8:432d:1::/64 between RouterA and RouterB (with link-local
addresses obly), you have to use :

/sbin/route -q add -inet6 2001:7a8:432d:1:: -prefixlen 64
fe80::...(2)%fxp1
on RouterA where fe80::...(2) is the link-local address of RouterB.

Is it what you want?

Konstantin

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