[Olsr-dev] Asymmetric ipip not working

Markus Kittenberger (spam-protected)
Mon Apr 26 10:27:12 CEST 2010


does more than an error message happen on systems without rp_filter on
tunl0?

but in gerenal we should try to be version specific, at least for the
>=2.6.31  changes, that heyvily change the semantcis of the "all" interface

lg Markus

On Mon, Apr 26, 2010 at 10:14 AM, Henning Rogge <
(spam-protected)> wrote:

> On Mon April 26 2010 09:58:34 Sven-Ola Tuecke wrote:
> > Moins,
> >
> > hhm. dunno yet. I don't think that adding iptables-functions to olsrd is
> a
> > good thing. A routing daemon should not fiddle to much with the system
> > besides routing tables IMO.
> >
> > Besides that: the rp_filter stuff is getting nasty. As I wrote, the
> > itunl0.rp_filter=0 is required on 2.6.31. There's already a query in
> > linux/net.c, some "if is_at_least_linuxkernel_2_6_31". On 2.6.30 there is
> a
> > tunl0.rp_filter file, but on 2.6.18 (my XEN based gateway server) does
> not
> > offer rp_filter for the ipip tunnel device. Same on 2.4.30...
> Hmm... if you think it's necessary we can add some more version specific
> code
> there.
>
> Henning Rogge
>
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