[ovs-discuss] vxlan remote_ip flow help
Jesse Gross
jesse at nicira.com
Fri Aug 30 16:09:06 UTC 2013
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.
>
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