[ovs-discuss] vxlan remote_ip flow help

[Jesse Gross]

Do you have a corresponding flow to receive the VXLAN traffic? You only
showed one for sending.

As you mentioned before, you should be able to use ofproto/trace to see
what OpenFlow rules are being hit.


On Wed, Aug 28, 2013 at 4:48 AM, Andrei Andone
<andrei.andone at softvision.ro>wrote:

>  Hello Jesse,
>
> Yes, on Wireshark listening to eth0, I see udp packets being sent and
> received between the hosts (udp, destination port: 4789, which is vxlan
> port). So the hosts are comunicating (the tunnel is) but I can't see any
> reply on my br-vnet wireshark, or my VM receiving the answer that reached
> the host.
>
> Thanks,
> Andrei
>
>
> On 08/28/2013 02:50 AM, Jesse Gross wrote:
>
> On Tue, Aug 27, 2013 at 5:51 AM, Andrei Andone <
> andrei.andone at softvision.ro> wrote:
>
>>  Hello guys,
>>
>> I have a question related to the "options:remote_ip=flow" feature.
>>
>> My config looks like this for one host:
>>
>> [root at localhost ~]# ovs-vsctl show
>> e927ea5a-41d8-4bf5-9145-5be06e18bc9f
>>     Bridge "br-eth0"
>>         Port "br-eth0"
>>             Interface "br-eth0"
>>                 type: internal
>>         Port "eth0"
>> (external interface)
>>             Interface "eth0"
>>     Bridge br-vnet
>>         Port br-vnet
>>             Interface br-vnet
>>                 type: internal
>>         Port "vxlan1"
>> (tunnel I use)
>>             Interface "vxlan1"
>>                 type: vxlan
>>                 options: {key="10", remote_ip=flow}
>>         Port "vnet0"
>> (port for the virtual machine)
>>             Interface "vnet0"
>>     ovs_version: "1.12.90"
>> [root at localhost ~]#
>>
>> If I set the "options:remote_ip=A.A.A.1" (the IP for host 2) everything
>> works just fine ARP requests from my VM, pings to the subnet, etc.
>>
>> If I leave it like this, it doesn't work.
>>
>> I followed some instructions that I could find by google-ing.
>>
>> I know I need to set up flows to transmit and to receive, but I'm not
>> sure how.
>> Until now, for transmitting I used:
>>
>> ovs-ofctl add-flow br-vnet
>> "in_port=1,actions=set_field:A.A.A.1->tun_dst,output:2"
>> (in_port = virtual network port, output = tunnel port)
>>
>
>  Do you actually see packets going out on the wire when they hit this
> flow?
>
>
> --
>   Andrei Andone
>
> SOFTVISION | 57 Republicii Street, 400489 Cluj-Napoca, Romania
> Email: andrei.andone at softvision.ro | Web: www.softvision.ro
>
> The content of this communication is classified as SOFTVISION Confidential
> and Proprietary Information.
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://openvswitch.org/pipermail/ovs-discuss/attachments/20130830/902d1e6e/attachment.html>