[Openstack] Allocating dynamic IP to the VMs

Chathura M. Sarathchandra Magurawalage 77.chathura at gmail.com
Mon Mar 18 15:53:11 UTC 2013


Hey Sylvain,

Basically what I need is to have the VMs mapped to my physical network so
that my physical hosts can directly access the VMs. How can I do this?

Thanks.


On 18 March 2013 15:50, Sylvain Bauza <sylvain.bauza at digimind.com> wrote:

>  Hi,
>
> I don't understand your business. Should you have a 192.168.1.0/24network for management, you could also assign an external network with
> Quantum based on the same subnet (ie. 192.168.1.0/24).
> When creating a floating IP pool, Quantum does require at least 3 things :
>  - the CIDR
>  - the beginning and ending IPs
>  - the external gateway
>
> So, based on what I previously said, you only need to create a
> 192.168.1.0/24 in Quantum with .1-.100 (for example) as the range, .254
> being the external gateway.
>
> Thanks,
> -Sylvain
>
> Le 18/03/2013 16:29, Chathura M. Sarathchandra Magurawalage a écrit :
>
> anyone?
>
> On 17 March 2013 21:33, Chathura M. Sarathchandra Magurawalage <
> 77.chathura at gmail.com> wrote:
>
>> After reading a little bit more, I think I have found what I need. It is
>>  a provider network that I need for the VMs so that they can get access to
>> the other resources in my main network ( such as other physical hosts that
>> are connected to the same network ).
>>
>>  My question is, is it possible to do this alongside the use case that I
>> have followed ( Provider router with private networks)?
>>
>>  If so how can I do this?
>>
>>  Thanks.
>>
>>
>>   On 16 March 2013 01:46, Chathura M. Sarathchandra Magurawalage <
>> 77.chathura at gmail.com> wrote:
>>
>>>  Hello,
>>>
>>>  I want to know how I can allocate a dynamic IP to the VM from the same
>>> network as the openstack hosts (controller/network-node/compute node)
>>> network/management network . For example, in virtual box you can give your
>>> VM an IP from the host's network using a Bridge adapter. How can I do this
>>> in openstack?
>>>
>>>  From what I understand floating IP's are used when you have a public
>>> IP
>>>  (which is static) to be allocated to VM's.
>>>
>>> My openstack installation architecture:
>>>
>>> http://docs.openstack.org/folsom/basic-install/content/basic-install_architecture.html
>>>
>>>  Quantum use case:
>>>
>>> http://docs.openstack.org/trunk/openstack-network/admin/content/use_cases_single_router.html
>>>
>>
>>
>
>
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