[ovs-discuss] connect vxlan to localhost

[Gregory Rose]

On 7/2/2019 10:15 AM, Ben Pfaff wrote:
> On Tue, Jul 02, 2019 at 10:46:16AM +0200, Miroslav Kubiczek wrote:
>> I'm struggling with the %subj%. The problem is that OVS is allocating the
>> same port on both sides (src and dst) for vxlan port. So if I'm running my
>> UDP server on port 4789 and then starting the bridge, the following
>> 'add-port' command will fail:
> I am not sure whether the kernel is flexible enough to handle this.  Is
> it possible to configure kernel VXLAN tunnels at the same time as
> running your server?  If it is possible, then maybe OVS userspace can be
> adapted to do it.  If it is not possible, then it would take kernel
> changes (outside of the OVS kernel module, probably) for OVS userspace
> to be able to do it; while that does not make it impossible, it does
> make it a bigger job.

You can run vxlan on any port you want - it doesn't have to be 4789.  It 
will be the same port # on both ends of the tunnel
though.

- Greg

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