Open Stack

As per 
http://docs.openstack.org/folsom/openstack-network/admin/content/demo_logical_network_config.html 
but slightly modified as per CLI help,

quantum net-create ext_net --tenant-id $TENANT_ID --router:external=True
quantum subnet-create --ip_version 4 --allocation-pool start=192.168.2.151,end=192.168.2.240 \
  --gateway 192.168.2.253 <id_of_ext_net> 192.168.2.0/24 -- --enable_dhcp=False


It will create ext_net subnet with preallocated IP range. For each VM, 
allocate floating IP from this pool and then associate it with the 
internal port.

Hope it can helps,
-Sylvain

Le 19/03/2013 13:44, Chathura M. Sarathchandra Magurawalage a écrit :
> Thanks.
>
> its 192.168.2.0/24 <http://192.168.2.0/24>
>
> free ip range: 192.168.2.151 192.168.2.240
>
> gw/dhcp server: 192.168.2.253
>
>
> On 19 March 2013 08:28, Sylvain Bauza <sylvain.bauza at digimind.com 
> <mailto:sylvain.bauza at digimind.com>> wrote:
>
>     In that case, please refer to my previous e-mail : use floating
>     IPs bound to the same physical network.
>     That's up to you to know which IP pools are available inside your
>     network. Once you get one, create a external Quantum subnet
>     defined with this IP range.
>
>     Sorry, I have feeling to explain again and again. If you still
>     don't catch the point, could you please then tell me your physical
>     net/CIDR, your free IP range and your gateway, and I'll mix you up
>     the command to issue.
>
>     -Sylvain
>
>     Le 18/03/2013 18:02, Chathura M. Sarathchandra Magurawalage a écrit :
>>     Thanks Sylvain,
>>
>>     There must be a way of doing this without having to do anything
>>     with my default gateway of my physical network? . Even if I have
>>     to I do not wan to do anything to the physical gateway. All I
>>     need is a way to let the VMs get a dynamic IP from the physical
>>     network. How can I do this. For example this can be done on
>>     virtual box using a bridge adapter which maps the VM in to the
>>     physical network.
>>
>>     On 18 March 2013 16:05, Sylvain Bauza <sylvain.bauza at digimind.com
>>     <mailto:sylvain.bauza at digimind.com>> wrote:
>>
>>         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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>>>>             Post to     :openstack at lists.launchpad.net  <mailto:openstack at lists.launchpad.net>
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>>>>             More help   :https://help.launchpad.net/ListHelp
>>>
>>>
>>
>>
>
>

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