[openstack-dev] [Neutron] Use public IP address as instance fixed IP
blak111 at gmail.com
Fri Aug 22 21:04:39 UTC 2014
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 <bywang98 at 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 <blak111 at 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 <bywang98 at 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 at lists.openstack.org
>> Kevin Benton
>> OpenStack-dev mailing list
>> OpenStack-dev at lists.openstack.org
> OpenStack-dev mailing list
> OpenStack-dev at lists.openstack.org
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