[Openstack-operators] VMs on different compute hosts are not able to communicate on openstack havana, with flatdhcp, multi-host nova-network setup with kvm on ubuntu 12.04

Harish Kumar hk4cloud at gmail.com
Fri Dec 27 09:25:27 UTC 2013

It worked!! ... the problem is that vmware was not allowing to set the
virtual ethernet adapter in promiscuous mode because of permission problem
of the device files in host machine.

Here is the Vmware KB which helped me.



On Thu, Dec 26, 2013 at 10:22 PM, Harish Kumar <hk4cloud at gmail.com> wrote:

> Okay Thank you very much Erik for your advice. I will do this setup in
> physical hardware and see if it works :)
> Thanks,
> Harish
> On Thu, Dec 26, 2013 at 10:10 PM, Erik McCormick <
> emccormick at cirrusseven.com> wrote:
>> I haven't tried a setup using nova network, but when I attempted a setup
>> with Neutron in VMWare, I had the same arp issues. When I put everything on
>> physical hosts except the control node, my issues went away. I don't know
>> the exact cause of the issue, but it seems to have something to do with the
>> VMWare virtual switch.
>> -Erik
>> On Dec 26, 2013 8:48 AM, "Harish Kumar" <hk4cloud at gmail.com> wrote:
>>> Hello All,
>>> I am trying to setup openstack with zeromq, with flatdhcp multi-host
>>> networking with nova-network, with kvm hypervisor on ubuntu 12.04.
>>> The problem we are facing is that the vms running on different compute
>>> hosts are not able to communicate between them; at the same time, vms on
>>> same host are able to communicate.
>>> I see when I ping from vm1 running on compute1 to vm2 running on
>>> compute2, the arp request broadcast is reaching vm2 and is replying which
>>> is reaching compute2 bridge interface (br100 and corresponding eth
>>> interface), but the reply is not reaching to compute1 bridge interface.
>>> I am setting up the whole setup in vmware workstation environment.
>>> Any help is greatly appreciated..... :)
>>> Thanks,
>>> Harry
>>> _______________________________________________
>>> OpenStack-operators mailing list
>>> OpenStack-operators at lists.openstack.org
>>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstack.org/pipermail/openstack-operators/attachments/20131227/6a580526/attachment.html>

More information about the OpenStack-operators mailing list