[ovs-discuss] packet_type=legacy_l3 gre tunnel does not work

Gregory Rose gvrose8192 at gmail.com
Fri Oct 26 17:26:42 UTC 2018


On 10/17/2018 6:06 AM, Yousong Zhou wrote:
> On Wed, 17 Oct 2018 at 21:01, Yousong Zhou <yszhou4tech at gmail.com> wrote:
> ...
>> ovs-vsctl add-port br0 tun0 -- set interface tun0 type=gre
>> options:remote_ip=flow options:key=flow options:packet_type=legacy_l2
>> ofport_request=2
> Pasted the wrong line.  packet_type=legacy_l3 works.
> packet_type=legacy_l3 did not.
>
> ovs-vsctl add-port br0 tun0 -- set interface tun0 type=gre
> options:remote_ip=flow options:key=flow options:packet_type=legacy_l3
> ofport_request=2
>
> I also tried substitute type=gre with vxlan, stt, geneve, with
> packet_type=legacy_l3 unchanged, they all just silently dropped the
> traffic.

What is generating the layer 3 traffic?  I looked at scapy but it seems 
to insist on adding L2 Ethernet
headers and I haven't found a way around that.

Thanks,

- Greg

>
>                  yousong
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