Thank you Ben that was the solution, I set a gretap link (which seems to be L2) instead of a gre link, and now everything works fine :)
2013/10/12 Ben Pfaff <b...@nicira.com> > This seems reasonable to me but Guru knows this better than me so I'd > like his input. Guru? > > On Fri, Oct 11, 2013 at 06:16:02PM +0200, Madko wrote: > > btw, I know it's a bit off-topic, but do you know if it's possible to > make > > an ovs gre port to point to an native gre interface on a remote host? The > > remote host doesn't have openvswitch... tcpdump shows some gre traffic on > > the remote host, but marked as "Unknown Ethernet type" or TEB on more > > recent tcpdump. Any idea? > > GRE can encapsulate multiple kinds of traffic. Open vSwitch only > supports Ethernet (L2) traffic inside a tunnel. Sufficiently new > Linux supports Ethernet (L2) and IP (L3) traffic inside a GRE tunnel. > L2 is a newer feature though so you need to configure it. I don't > know off-hand how one does that but perhaps that's enough to find it. > -- Edouard Bourguignon
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