[Openstack-operators] VM with a public IP

Trygve Laugstøl trygvis at inamo.no
Tue Aug 14 07:52:23 UTC 2012

On Mon, Aug 13, 2012 at 10:04:03PM -0400, Warren Wang wrote:
> I was hoping someone would answer Paul's question, as we are also
> interested in skipping the whole NAT thing.  It's not as important in an
> enterprise environment where the VMs are going to have to have the floating
> addresses assigned anyways.  Eliminating NAT makes it simpler.  Yes, there
> are drawbacks, and it's less flexible, but it's also easier on the
> customers and cloud admins.
> It isn't impossible to hack in as is, but if it's been documented and test,
> it would be nice to have a guide.

What I did on the "public" dhcp server (which I also happen to own) was to get it to not give out IPs to images from the KVM ethernet MAC range (54:52:00). After that it all just worked with a flat dhcpd setup.



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