[one-users] OpenNebula and DHCP Server

[M Fazli A Jalaluddin]

Hello Valentin,

My setup for OpenNebula is 1 Front-end and several KVM nodes. The front-end
and nodes are using IP address 192.168.1.xxx and are able to connect to the
internet.

The current networking setup for the VM is using dummy and bridge, br0.

So, for the VM able to access to the internet, is by assigning them
192.168.1.xxx IP addresses.

If I have many VMs, IP address 192.168.1.xxx will be depleted.

Hence, I need to make a new private network such as, 10.0.1.xxx which will
map to only a single 192.168.1.xxx, e.g 192.168.1.5.

Thank you.

Regards,
Fazli


On Wed, Oct 2, 2013 at 7:21 PM, Valentin Bud <valentin.bud at gmail.com> wrote:

> Hello Fazli,
>
> The Virtual Router documentation [1] is definitely a good place to start.
>
>
> On Wed, Oct 2, 2013 at 1:57 PM, M Fazli A Jalaluddin <
> fazli.jalaluddin at gmail.com> wrote:
>
>> Hi,
>>
>> Is there any tutorial on how to use the VirtualRouter?
>>
>> I have download the image from Marketplace and Deploy a VM out of it.
>>
>> Then what should I do?
>>
>> My concern is that the Multiple VM will be able to be assigned a private
>> IP address (at the same time connect to the internet) while the KVM host is
>> using public IP address.
>>
>
> I don't really understand your concern. Could you be more specific?
>
> Yes, every VM will get a private IP address from the Router in case you
> connect it to the private
> network. If you connect the VM to the public network too you'd have to
> setup the IP address on the VM.
> If context package is installed in the VM it'll autoconfigure the public
> IP also.
>
> [1]: http://opennebula.org/documentation:rel4.2:router
>
> Good Will,
>
>
>>
>> Thank you
>>
>> On Wed, Oct 2, 2013 at 4:26 PM, Carlos Martín Sánchez <
>> cmartin at opennebula.org> wrote:
>>
>>> Hi,
>>>
>>> On Wed, Oct 2, 2013 at 6:56 AM, M Fazli A Jalaluddin <
>>> fazli.jalaluddin at gmail.com> wrote:
>>>
>>> Hi,
>>>>
>>>> May I know if the Virtual Router provide NAT?
>>>>
>>>
>>> Yes, look for the Full Router section in the documentation:
>>> http://opennebula.org/documentation:rel4.2:router
>>>
>>> PS: Please reply also to the mailing list
>>>
>>> Regards.
>>> --
>>> Carlos Martín, MSc
>>> Project Engineer
>>> OpenNebula - Flexible Enterprise Cloud Made Simple
>>> www.OpenNebula.org | cmartin at opennebula.org | @OpenNebula<http://twitter.com/opennebula><cmartin at opennebula.org>
>>>
>>>
>>> On Wed, Oct 2, 2013 at 6:56 AM, M Fazli A Jalaluddin <
>>> fazli.jalaluddin at gmail.com> wrote:
>>>
>>>> Hi,
>>>>
>>>> May I know if the Virtual Router provide NAT?
>>>>
>>>> Thank you
>>>>
>>>>
>>>> On Thu, Sep 5, 2013 at 5:29 PM, Carlos Martín Sánchez <
>>>> cmartin at opennebula.org> wrote:
>>>>
>>>>> Hi,
>>>>>
>>>>> Actually, we do provide a Virtual Router appliance that contains a
>>>>> DHCP server. It knows the correct IP assigned by OpenNebula to each MAC.
>>>>> See http://opennebula.org/documentation:rel4.2:router
>>>>>
>>>>> Regards
>>>>>
>>>>> --
>>>>> Join us at OpenNebulaConf2013 <http://opennebulaconf.com> in Berlin,
>>>>> 24-26 September, 2013
>>>>> --
>>>>> Carlos Martín, MSc
>>>>> Project Engineer
>>>>> OpenNebula - The Open-source Solution for Data Center Virtualization
>>>>> www.OpenNebula.org | cmartin at opennebula.org | @OpenNebula<http://twitter.com/opennebula><cmartin at opennebula.org>
>>>>>
>>>>>
>>>>> On Thu, Sep 5, 2013 at 8:55 AM, Ionut Popovici <ionut at hackaserver.com>wrote:
>>>>>
>>>>>>  No opennebula don't provide DHCP , you could use vlans to brake the
>>>>>> network, and u can use contextualization to get the ip for virtual
>>>>>> machines, if u use bridge mode is u should make rules in iptables(ebtables)
>>>>>> for udp dst port 67  and allow only response from your DHCP server.
>>>>>> Chears.
>>>>>> On 9/5/2013 9:49 AM, Mohammad Fazli Ahmat Jalaluddin wrote:
>>>>>>
>>>>>>     Hi guys,
>>>>>>
>>>>>> I just want to ask few questions.
>>>>>>
>>>>>> Does OpenNebula act as a DHCP Server and give IP address to the VM if
>>>>>> it is not contextualized in the first place?
>>>>>>
>>>>>> When the VM is deploy (without context), e.g Ubuntu server default
>>>>>> network configuration is using DHCP, and thus the IP for the VM is
>>>>>> different with the one that OpenNebula uses from the vnet lease.
>>>>>>
>>>>>>  Is the IP address in the VM is given by OpenNebula (act as the DHCP
>>>>>> server) or given by our network existing DHCP server?
>>>>>>
>>>>>>  The reason I'm asking is because our network is poisoned since there
>>>>>> are 2 DHCP server. BTW, our OpenNebula configuration for the network is
>>>>>> using dummy and using bridge in the frontend
>>>>>>
>>>>>>  Thank you very much.
>>>>>>
>>>>>>  Regards,
>>>>>>  Fazli
>>>>>>
>>>>>>
>>>>>> _______________________________________________
>>>>>> Users mailing listUsers at lists.opennebula.orghttp://lists.opennebula.org/listinfo.cgi/users-opennebula.org
>>>>>>
>>>>>>
>>>>>>
>>>>>> _______________________________________________
>>>>>> Users mailing list
>>>>>> Users at lists.opennebula.org
>>>>>> http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
>>>>>>
>>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> Users mailing list
>>>>> Users at lists.opennebula.org
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>>>>>
>>>>>
>>>>
>>>
>>
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>>
>
>
> --
> Valentin Bud
> http://databus.pro | valentin at databus.pro
>
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