[Openstack] Network configuration for single node Openstack install.

Logan McNaughton logan at bacoosta.com
Fri Jul 19 14:15:21 UTC 2013

I'll give it a go.
For starters, your management network would actually be, not /8 means that only the first octet is significant for the
network portion. You'd need to make it a /24 network if you want
(/24 is perfectly fine for that address by the way).

Personally I would look here:

Just follow those steps for the OVS plugin. When it comes time to install
the L3 agent, you do:
ovs-vsctl add-br br-ex
ovs-vsctl add-port br-ex eth1

eth1 doesn't need to have an IP address assigned.
Once everything is setup, you can do this:

quantum net-create public --router:external=True
quantum subnet-create --gateway public
start=,end= --disable-dhcp
--name public-subnet

Then in Horizon you can create a Router, attach one interface to the
internal network, and then set it's gateway to the "public" network, you
should be good to go.

You can then assign your instances floating IP's from the Traffic will be routed through the virtual
router, out the eth1

On Fri, Jul 19, 2013 at 1:39 AM, Jake G. <dj_dark_junglist at yahoo.com> wrote:

> Hi all,
> I am having issues with networking. I have a single node Openstack Grizzly
> server with two NICs.
> -NIC1
> eth0
> IP address:
> Mask:
> GW: none
> -NIC2
> eth1
> IP address:
> Mask:
> GW:
> 1. Instances should use the subnet for access to the
> internet.
> 2. My Management network should use the subnet and does not
> need access to the internet.
> Could somone help me with setting this up? or a link pointing to something
> similar?
> Thank you
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