[Openstack-operators] VM with a public IP

Jānis Ģeņģeris janis.gengeris at gmail.com
Mon Aug 13 21:02:56 UTC 2012

Hi, Paul

Have you tried to use public IP addresses in place of private ones, I mean
as fixed IPs? I'm just curious, because I have thought if something like
this could work, but actually haven't tried myself. If you check
https://trystack.org/ they have something similar working in production,
their Horizon lists the VMs IP as private (and it is the only IP the
instance gets assigned by default when spawning), but it's actually
publicly routable address. So somone who's involved in TryStack could shed
some light how they are doing it.


On Mon, Aug 13, 2012 at 11:31 PM, Paul Walton <paul.d.walton at gmail.com>wrote:

> Hello,
> I have been reading tutorials on installing OpenStack on Ubuntu, and so
> far they all involve giving the VMs a private IP from the Nova configs.
> However, in my case I will need to generate VMs that have a publicly
> accessible IP address, and this address will be handed out by a DHCP server
> that I do not control and is external to OpenStack.  I can do this just
> fine using standard KVM on our current VM server, but I haven't see yet how
> OpenStack allows this to occur.  For example, several of our current VMs
> run class websites, and some have static IPs assigned to them, while some
> are dynamically assigned.  These must be accessable from the Internet for
> our students to access.  If someone could point me to a document or
> tutorial on how to do this in OpenStack then that would be great!
> Thanks!
> --
> Paul Walton
> University of Arkansas
> College of Engineering
> CSCE Technical Support Team
> J.B. Hunt Building, Room 440
> _______________________________________________
> OpenStack-operators mailing list
> OpenStack-operators at lists.openstack.org
> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators
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