Open Stack

Hi Varun,

As Garry said you can pre create ports with specific mac addresses and
then assign them to instances if you are using neutron for networking.
 The Horizon dash board does not provide an interface to either of
these actions but the command line tools do.

the 'port-create' sub command of 'neutron' takes options for
--mac-address and --fixed-ip among many others run `neutron help
port-create` for more details

once you have created the ports you can pass the port IDs in to 'nova
boot --nic port-id-<port-uuid> <then the rest of the options for your
instance>'

I use this to provide a fixed MAC address for my node locked flexlm
server that identifies it's authorized node by mac address.  Note you
can specify whatever you want here but it is up to you to avoid
conflicts on the same network segment if you start statically
assigning MAC addrs.  Neutron won't create conflicts but I don't know
if it will prevent you from doing so.

-Jon


On Tue, Jan 21, 2014 at 4:29 AM, Gary Kotton <gkotton at vmware.com> wrote:
> Hi,
> If you are using neutron then you can create pass the MAC address as part of
> the create port call. Please see
> https://wiki.openstack.org/wiki/Neutron/APIv2-specification#Port
> Thanks
> Gary
>
> From: varun bhatnagar <varun292006 at gmail.com>
> Date: Tuesday, January 21, 2014 8:35 AM
> To: "openstack at lists.openstack.org" <openstack at lists.openstack.org>
> Subject: [Openstack] How to get the MAC Address in Openstack
>
> Hi,
>
> How can I get the MAC Address of the network interface which I have created
> on Openstack?
>
> Also, is there any way where in I can define the MAC Address while creating
> any network?
>
> I tried digging in the code and I found out that the MAC Address assigned by
> Openstack starts with "fa:16:3e:". I want to assign fa:16:3e:00:00:01 first
> network interface, fa:16:3e:00:00:02 to second and fa:16:3e:00:00:03 to
> third network interface of my VM.
> Is this possible?
>
> Regards,
> Varun
>
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