[Openstack-operators] Accessing Private network in a multi_host + HA network set up

Narayan Desai narayan.desai at gmail.com
Wed Dec 5 13:24:56 UTC 2012

What networking config are you using? (nova-network, or quantum) If
you're using nova-network, and not using multi-host, you should be
able to reach all vms from the system running nova-network. I think
the same should be true of quantum as well. If you're running
multi-host with nova-net, you'll need something for route
distribution. We've previously used zebra for this with multiple
nova-network servers.

On Wed, Dec 5, 2012 at 6:56 AM, Gui Maluf <guimalufb at gmail.com> wrote:
> Hey guys, I've the following setup
> All servers have two NICs, one with a real IP which from the server access
> internet. and other which is the VM network. Each of the node controls its
> own network and is the gateway to output access.
> CC + node
> public ip: -> eth0
> private ip: -> br100 (eth1)
> vm1:
> node1:
> public ip: -> eth0
> private ip: -> br100 (eth1)
> vm2:
> node2:
> public ip: -> eth0
> private ip: -> br100 (eth1)
> vm3:
> What I want to do is be able to access any of the vm from one point on the
> network.
> For example, I have to add a route to network via, in
> that way I can reach only the vm1. I would like to add a single route and be
> able to access vm{1,2,3}.
> Is this a iptables firewall issue or a operational routing table issue?
> Thanks in advance
> --
> guilherme \n
> \t maluf
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> OpenStack-operators mailing list
> OpenStack-operators at lists.openstack.org
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