openstack team mailing list archive

[ankush grover <ankushcentos@xxxxxxxxx>]

Thanks Ritesh/Salvatore


On Mon, Apr 22, 2013 at 12:10 AM, Ritesh Nanda <riteshnanda09@xxxxxxxxx>wrote:

> For floating ip you need to define a pool of ip that your machine would
> get. You can use auto_assign floating ip to assing a FIP from the pool
> automatically as the machine gets provisioned.
> Or you can use flat network-manager for nova network and use your existing
> dhcp server to provide ip's to your instance in openstack(in that case your
> machine directly gets a data-centre reachable ip or the ip you want to
> assign as floating ip but In that case Vlans can not be used.
> Hope that helps you
>

So if I use the external DHCP server then the VMs provisioned inside
openstack will get IPAddress even in-case of non-floating ips in 1 VLAN
only (a common vlan)?  There is no issue if the internal ips(non-floating
ips) can be in the different vlans in that case no need of floating ips and
it will serve my purpose as I need to assign data center reachable ips to
the VMs either in form of floating or non-floating ips.

>
> cheers
> Ritesh
>
>

Regards

Ankush

>
> On Sun, Apr 21, 2013 at 11:19 PM, Salvatore Orlando <sorlando@xxxxxxxxxx>wrote:
>
>> Hi Ankush,
>>
>> unfortunately I am not aware of the possibility of using an external dhcp
>> server for quantum, neither in folsom or grizzly).
>> Currently, the dnsmasq option appears to be the only available one.
>>
>> Salvatore
>>
>>
>> On 16 April 2013 08:02, ankush grover <ankushcentos@xxxxxxxxx> wrote:
>>
>>> Hi Friends,
>>>
>>> I have recently installed and configured Openstack Folsom release
>>> without quantum on 2-node(Controller & Compute Node) on Ubuntu 12.10. This
>>> initial setup was more from the learning perspective. Now I wanto to
>>> configure Openstack as Private cloud for the production environment. There
>>> are around 150 VLANS in my present organisation and all the machines gets
>>> IPAddresses from the Windows 2008 DHCP server. Now we want to use the
>>> existing Windows DHCP server for giving the floating ips on the Openstack.
>>> Is it possible to configure Openstack in such a way that it can take
>>> IPAddresses from the existing DHCP server?
>>>
>>> Any links/configurations would be very handy.
>>>
>>> Do let me know if you need any further information.
>>>
>>>
>>> Thanks & Regards
>>>
>>> Ankush
>>>
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>>
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>>
>
>
> --
>
> * With Regards
> *
>
> * Ritesh Nanda
> *
>
> ***
> *
> <http://www.ericsson.com/>
>
>
>
>