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From Alena Prokharchyk <>
Subject Re: Changing the IP Address of a Cloudstack VM
Date Thu, 07 Jun 2012 16:31:24 GMT
On 6/7/12 9:25 AM, "Eric Reeves" <> wrote:

>Alena responded to my email and stated that IP addresses stick with
>virtual machines for the entire lifecycle.
>Is that only guaranteed to be the case if you have a single POD in basic
>networking mode?  (Or is it not even guaranteed then?)

It is guaranteed in:

* All cases in the Basic zone, no matter how many Pods you have
* In Advance zone when VirtualRouter is used as DHCP provider.


>What are the downsides of just hard-coding IP addresses on these systems
>to IP's outside of the allocated guest ranges for the PODs?  Cloudstack
>will not know where to reach them, but does it really need to?
>I appreciate everybody's input on this topic.
>Eric Reeves
>On Jun 7, 2012, at 1:49 AM, Geoff Higginbottom wrote:
>Whilst this would be possible if you were using Advanced Networking,
>although still only by manual DB updating, and not via the GUI, you
>cannot do it with Basic Networking.
>Using the API you can deploy VMs with a specific IP if you are using
>Advanced networking, but you cannot with Basic networking, this is
>because with Basic networking each POD has a different Guest CIDA, so if
>you shut down your VM then restart it later, it could be placed on a
>different POD, and get allocated a different IP.

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