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From: Murali Reddy <Murali.Reddy@citrix.com>
To: "users@cloudstack.apache.org" <users@cloudstack.apache.org>
Subject: Re: How can I allocate a specific IP when I create an instance.
Thread-Topic: How can I allocate a specific IP when I create an instance.
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 AQHOcmT+00REI5DF6EC/7UJ5Qd25ZJlHnQ6AgAACLQCAABtzgIAADdkAgAAxdYCAASJjgA==
Date: Thu, 27 Jun 2013 09:06:03 +0000
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On 27/06/13 2:46 AM, "Geoff Higginbottom"
<geoff.higginbottom@shapeblue.com> wrote:

>@Dave: you are right about advanced networks but the original question
>was in relation to basic networking.
>
>@All: I did some testing over a year ago around changing IPs for guest.
>For a VM on and advanced network you can edit the IP directly in the
>database but restarting the VM is not enough, you have to also restart
>the virtual Router for that network.
>
>The new 4.1 add NIC API call Dave is referring to is great and to me one
>of the best new features of 4.1, but again it's only for advanced
>networking so no good for the original problem.
>
>The multiple IPs to a single NIC has been discussed a lot, but I believe
>it is still in development.

Multiple Ip per nic is going in 4.2 [1]. Also in 4.2, you can reserve a
sub-range of guest CIDR that user can control and assign to the VM's [2]
but again this is only in advanced network.

[1]=20
https://cwiki.apache.org/confluence/display/CLOUDSTACK/Multiple+IP+address+
per+NIC
[2]=20
https://cwiki.apache.org/confluence/display/CLOUDSTACK/IP+Range+Reservation
+within+a+Network


>
>Regards
>
>Geoff Higginbottom
>CTO / Cloud Architect
>
>D: +44 20 3603 0542<tel:+442036030542> | S: +44 20 3603
>0540<tel:+442036030540>| M: +447968161581<tel:+447968161581>
>
>geoff.higginbottom@shapeblue.com<mailto:geoff.higginbottom@shapeblue.com>
>|www.shapeblue.com | Twitter:@shapeblue<https://twitter.com/#!/shapeblue>
>
>ShapeBlue Ltd, 53 Chandos Place, Covent Garden, London, WC2N 4HS
>
>
>On 26 Jun 2013, at 11:22, "Dave Dunaway"
><dave.dunaway@gmail.com<mailto:dave.dunaway@gmail.com>> wrote:
>
>@Geoff: Of course we are talking advanced networking, and having
>consideration of what your networks are that you can use. If someone wants
>to put a 10.x.x.x ip on a VM that is on a 192.x.x.x network, then they can
>gladly shoot themselves in the foot. Ideally the person making such a
>change understands the 'basic's of advanced networking in CloudPlatform.
>Otherwise they should stick the UI.;)
>
>@Jason: Look in the cloud.nics table. The nics for VMs are defined here.
>Modify as needed. A restart of the VM to make sure it all works is highly
>recommended.
>
>In our testing environment I can move a VM from one network to another,
>add
>nics, change IP's etc quite easily. Some of the 4.1 API will add this
>functionality (add nics for example to an existing VM). But there's still
>a
>lot of immutable things in CloudPlatform that shouldn't be, and  that
>maybe
>one day will be a feature. We just need to make the requests for those
>features.
>
>
>
>
>
>
>On Wed, Jun 26, 2013 at 1:30 PM, Jason Pavao
><jason.pavao@oracle.com<mailto:jason.pavao@oracle.com>> wrote:
>
>Do you by chance have a sample sql query that would perform this?
>
>
>
>On 6/26/2013 8:51 AM, Dave Dunaway 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.higginbottom@shapeblue.**com
><geoff.higginbottom@shapeblue.com<mailto:geoff.higginbottom@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.higginbottom@shapeblue.**com
><geoff.higginbottom@shapeblue.com<mailto:geoff.higginbottom@shapeblue.com>
>>
><mailto:geoff.higginbottom@**shapeblue.com<http://shapeblue.com><geoff.hig
>ginbottom@shapeblue.com<mailto:geoff.higginbottom@shapeblue.com>>
>
>| www.shapeblue.com<http://www.shapeblue.com>
>
>ShapeBlue Ltd, 53 Chandos Place, Covent Garden, London, WC2N 4HS
>
>
>
>On 26 Jun 2013, at 05:02, "WXR"
><474745079@qq.com<http://qq.com><http://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.
>This email and any attachments to it may be confidential and are intended
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>opinions expressed are solely those of the author and do not necessarily
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>
>
>--
>Thanks.
>-Jason
>
>
>This email and any attachments to it may be confidential and are intended
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>or opinions expressed are solely those of the author and do not
>necessarily represent those of Shape Blue Ltd or related companies. If
>you are not the intended recipient of this email, you must neither take
>any action based upon its contents, nor copy or show it to anyone. Please
>contact the sender if you believe you have received this email in error.
>Shape Blue Ltd is a company incorporated in England & Wales. ShapeBlue
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>