Open Stack

Hi George,

Thanks for the update. Yes, you are right that is the exact requirement.

"assign ip from that network directly to the instance with out the use of a
private net and floating ip over nat"

I got a update about external network like this from list. Thats why i
tried it like that.

==========================================================
 A Neutron router can also be attached to the same network so that
instances in non-routable tenant networks can obtain floating IPs from the
same 'public' network. At one time non-admin users were not allowed to
attach VMs to 'external' networks but I believe that restriction was
removed around Kilo or so.

Yes, as long as the network is marked as both 'shared' and external, a
tenant can attach VMs and router gateway interfaces directly to it.
==========================================================

According to your inputs, the above method is not correct right?


And about the method of adding bridge to compute node, do we need to add
following options?

bridgemapping in ml2 conf
enable_distributed_routing to true

Thanks again for your time.


On Sat, Oct 31, 2015 at 2:20 PM, George Paraskevas <paraskgeor at gmail.com>
wrote:

> Hello there,
>
> From what I understand you want to assign ip from that network directly to
> the instance with out the use of a private net and floating ip over nat.
> Now you need to correct some things and you will be quite there. First when
> you create an external network then that network can only work though
> floating ip. So instead create the same net but don't mark it as external.
> Also you need that bridge on compute nodes because the VM nic will bind
> directly to it. So don't configure l3 agent just configure ml mapping for
> that network. I hope you can under stand and I also hope I understood you.
> Thanks
> George
>
> On Sat, 31 Oct 2015, 08:43 Geo Varghese <gvarghese at aqorn.com> wrote:
>
>> Hi Team,
>>
>> I need help with adding instance with fixed ip in external network with
>> out using private and floating ip.
>>
>> I have tested it using following steps
>>
>> 1) Created a new nic - eth4 for new external network(192.168.122.0/24)
>> in controller.
>>
>> 2) Created a bridge - br-ex2 and added eth4 as port to bridge.
>>
>> 3) Mapped this bridge in ml2 conf and restarted l3 agent and neutron
>> plugin
>>
>> 4) Then added shared external network Ext2 in openstack. Then added
>> subnet as  192.168.122.0/24
>>
>> 5) Added it to the router- router2 as interface with a IP -
>> 192.168.122.99. Network topology shows the interface is active with this
>> IP. Ping to this ip is also working from other machines.
>>
>> Later created VM in this network, but it failed with following error in
>> nova-compute log.
>>
>> =========================================================
>> Unable to mount image
>> /var/lib/nova/instances/903a6630-941c-4fd0-948f-85522fa20979/disk with
>> error libguestfs installed but not usable (/usr/bin/supermin-helper exited
>> with error status 1.
>> ==========================================================
>>
>> Please check attached screen shot of network topology.
>>
>> Please help me with your inputs.
>>
>> --
>> --
>> Regards,
>> Geo Varghese
>> _______________________________________________
>> OpenStack-operators mailing list
>> OpenStack-operators at lists.openstack.org
>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators
>>
>


-- 
--
Regards,
Geo Varghese
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstack.org/pipermail/openstack/attachments/20151031/71a58c0c/attachment.html>