Its feasible to do this, you can pick a host to deploy to (as an admin) so
you know what pod it will eventually land in and its ip address space. I
say file an enhancement, bring it up to dev and have it discussed and voted
upon.


On Wed, Jun 26, 2013 at 4:51 PM, Dave Dunaway <dave.duna...@gmail.com>wrote:

> There should be a way to have the ability to reserve an IP and still have
> DHCP assign the IP by mac reservation. There's no technical reason this
> wouldn't work and likely a feature a lot of people would love to see. The
> only hold back is the UI not allowing you to do so.
>
> Ultimately, you can go to the DB and change the VM's IP in the nics table
> to what you want (reboot the VM and the IP change will occur). Which is not
> the preferred way to do so, but ultimately that functionality from the UI
> would be ideal.
>
> Even going as far as intergrating IPAM functionality into the product would
> be ideal.
>
>
> On Wed, Jun 26, 2013 at 11:44 AM, Geoff Higginbottom <
> geoff.higginbot...@shapeblue.com> wrote:
>
> > Simple answer - you can't.
> >
> > In an advanced zone, you can specify the IP address when you create a new
> > VM using the API, however in a basic zone, because the IP will depend on
> > which POD your VM ends up in, and as a user you cannot influence this,
> > there is no way to specific the IP, even if you are a root admin.
> >
> > The reason it still fails when you manually change the IP is that the
> > security groups feature is expecting the VM to have the IP CloudStack
> > allocated it via DHCP.
> >
> > Regards
> >
> > Geoff Higginbottom
> > CTO / Cloud Architect
> >
> >
> > D: +44(0)20 3603 0542<tel:+442036030542> | S: +44(0)20 3603 0540<tel:
> > +442036030540> | M: +44(0)7968161581<tel:+447968161581>
> >
> > geoff.higginbot...@shapeblue.com<mailto:geoff.higginbot...@shapeblue.com
> >
> > | www.shapeblue.com
> >
> > ShapeBlue Ltd, 53 Chandos Place, Covent Garden, London, WC2N 4HS
> >
> >
> >
> > On 26 Jun 2013, at 05:02, "WXR" <474745...@qq.com<http://qq.com>> wrote:
> >
> > cloudstack version: 4.1
> > network type: basic network
> >
> > When I create a new instance,the vm will get a random IP from the DHCP
> > server on vrouter.
> >
> > If I want to:
> > 1.allocate a specific ip to the vm.
> > 2.allocate multiple ips to the vm.
> > 3.change the vm ip from one to another.
> >
> > How can I achieve it? I try to bind the ip to the vm nic manually but the
> > ip can not be accessed.
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