Yo are totally Right Brian !
I tried to allow the bridge address pair to the VM port using the
following command and it works !!!
neutron port-update <VM_port_uuid> --allowed-address-pairs type=dict
list=true mac_address=<bridge_MAC>,ip_address=<bridge_ip>
Thank you so much !!
David
Le 18/06/2018 à 20:21, Brian Haley a écrit :
On 06/18/2018 06:26 AM, David Fernandes wrote:
Hi guys,
I have just 1 question. Is it possible to use OVS inside an Openstack
VM ? Let me explain my issue.
I have created 2 Ubuntu 16.04 VMs and installed last version of OVS
in both. Both VMs are connected to the same network and they can ping
each other.
Then, I have created an OVS bridge (namely "br-test") in the first VM
and I have added the port of the VM (ens1) to the ovs bridge as
usual. At this point I cant't ping from one VM to the other.
If I perform tcpdump on the bridge (tcpdump br-test), I see that ARP
requests are sent but they are not sent by the interface of the VM
(ens1).
I tried to add the MAC addreses manually to the ARP table of each VM.
When I ping, I see the same case : icmp packets outgoing the bridge
br-test but never sent by the interface ens1 of the VM.
I can only guess things are being blocked by the MAC anti-spoofing
rules neutron adds - perhaps the source MAC of the bridge is being
used which is different from the NIC?
-Brian
I have tried the same scenario using a linux bridge instead of OVS
swithch and it works.
Do you have any idea of why there are issues binding VM interface to
OVS bridges ? Any information will be really apreciated !! Thanks in
advance !!!
David
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