Yes, you should be able to create a shared/external network within Neutron to accomplish this.
On Fri, Aug 22, 2014 at 7:25 AM, Bao Wang <bywan...@gmail.com> wrote: > Thank you for your response. Could this be done naturally with Openstack > neutron or have to be done manually outside neutron ? As we are expecting > to orchestrate hundreds of NFV with all similar network configuration, > programmability is another key element. > > > On Thu, Aug 21, 2014 at 3:52 PM, Kevin Benton <blak...@gmail.com> wrote: > >> Have you tried making the external network shared as well? Instances that >> need a private IP with NAT attach to an internal network and go through the >> router like normal. Instances that need a public IP without NAT would just >> attach directly to the external network. >> >> >> On Thu, Aug 21, 2014 at 7:06 AM, Bao Wang <bywan...@gmail.com> wrote: >> >>> I have a very complex Openstack deployment for NFV. It could not be >>> deployed as Flat. It will have a lot of isolated private networks. Some >>> interfaces of a group VM instances will need bridged network with their >>> fixed IP addresses to communicate with outside world while other interfaces >>> from the same set of VM should keep isolated with real private/fixed IP >>> addresses. What happen if we use public IP addresses directly as fixed IP >>> on those interfaces ? Will this work with Openstack neutron networking ? >>> Will Openstack do NAT automatically on those ? >>> >>> Overall, the requirement is to use the fixed/public IP to communicate >>> with outside directly on some interfaces of some VM instances while keeping >>> others as private. The floating IP is not an option here >>> >>> _______________________________________________ >>> OpenStack-dev mailing list >>> OpenStack-dev@lists.openstack.org >>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev >>> >>> >> >> >> -- >> Kevin Benton >> >> _______________________________________________ >> OpenStack-dev mailing list >> OpenStack-dev@lists.openstack.org >> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev >> >> > > _______________________________________________ > OpenStack-dev mailing list > OpenStack-dev@lists.openstack.org > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev > > -- Kevin Benton
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