[ovs-discuss] strange message in dmesg

[Jesse Gross]

On Mon, Nov 11, 2013 at 5:45 AM, Vasiliy Tolstov <v.tolstov at selfip.ru> wrote:
> Hi all!
> What that means:
> [164758.992858] gre_compat_init: cannot register gre_cisco protocol handler
> [164758.992862] openvswitch: cannot register gre protocol handler
>
> And how can i use gre tunnels with ovs ?
> I'm using openvsiwthc 2.0  with dkms module in ubuntu saucy.

With this combination of OVS and kernel versions you need to unload
the upstream GRE module before loading OVS.