[Openstack] Allocating dynamic IP to the VMs
Sylvain Bauza
sylvain.bauza at digimind.com
Mon Mar 18 16:05:10 UTC 2013
Could you please tell me your "physical network" CIDR ?
Anyway, what you need is not requiring having a floating IP pool inside
the same network, you can also play with static routing : if your
physical host does have a default gw, you can create a static route from
this gw to the VM network gateway. And on the VM network gateway, do the
same...
-Sylvain
Le 18/03/2013 16:53, Chathura M. Sarathchandra Magurawalage a écrit :
> 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
> <mailto:sylvain.bauza at digimind.com>> wrote:
>
> Hi,
>
> I don't understand your business. Should you have a 192.168.1.0/24
> <http://192.168.1.0/24> network for management, you could also
> assign an external network with Quantum based on the same subnet
> (ie. 192.168.1.0/24 <http://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 <http://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 <mailto: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
>> <mailto: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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