Open Stack

Hi,


It does not matter whether you try it with the same instance or another one. Once you applied with a floating IP that you released before, it means the IP has been iterated over again through the allocation pool. 


Or if you would apply the same IP which has been released next time, you could follow the command below in your OpenStack console of the controller node:


  neutron floatingip-create FLOATING_NETWORK --floating-ip-address FLOATING_IP_ADDRESS


Then you do not need to wait for the same floating IP to be iterated over the allocation pool.


Br,
Chao
 
 
------------------ Original ------------------
From:  "Yngvi Páll Þorfinnss"<yngvith at siminn.is>;
Date:  Wed, Feb 24, 2016 02:59 AM
To:  "Rick Jones"<rick.jones2 at hpe.com>; "openstack at lists.openstack.org"<openstack at lists.openstack.org>; 

Subject:  Re: [Openstack] floating ip

 
Hi
I tried it again with another instance, and another fl.ip
And this time, the fl.ip became available again... so I could reuse it.
I'm not sure why the first one became not available.

Best regards
Yngvi

-----Original Message-----
From: Rick Jones [mailto:rick.jones2 at hpe.com] 
Sent: 23. febrúar 2016 17:12
To: openstack at lists.openstack.org
Subject: Re: [Openstack] floating ip

On 02/23/2016 06:22 AM, Yngvi Páll Þorfinnsson wrote:
> Hi
>
> How can I choose a particular flotating IP for an instance?
>
> I just released an floating IP from an tenant, but would like to 
> associate this particular IP , with another instance.
>
> It's not in use, when I list all floating IP's , it does not appear in 
> the list:
>
> neutron floatingip-list | grep IP

I'm not familiar with a command way to request a specific floating IP (eg 1.2.3.4) out of the pool(s).  Once you delete a given floating IP, it goes back into the free pool, at least after a fashion - as part of what I recall is an effort to minimize overheads, it won't actually come-up for allocation again until the allocations have cycled through all the addresses ahead/behind it.  So, if the pool was IPs:

1 2 3 4

And you happened to get "2" but then deleted that floater, "2" will not be allocated again until 3, 4 and 1 have been allocated (and perhaps freed).  Allocation goes in a big circle.

If you want to move a floating IP from one instance to another, you should just disassociate the floating IP, not also delete it.  Then the floating IP remains allocated to your project (IIRC we are all supposed to start calling them projects not tenants...) and you can then associate the IP with a port belonging to another instance.

rick jones

>
> I've been trying some nova and neturon cmd's but without success.
>
> Here is an example of error:
>
> root at opst-ctrl1-dev:/# nova floating-ip-associate 
> c8443770-276e-44ce-b79d-32965db9465b IP
>
> ERROR (NotFound): floating ip not found (HTTP 404) (Request-ID:
> req-1ed31433-2cc3-4e36-ad4c-fc992518baae)
>
> nova floating-ip-pool-list
>
> works fine, and I can see 6 differnt floating ip pools.
>
> It would be nice, if someone can post a cmd procedure for this.
>
> Best regards
>
> Yngvi
>
>
>
> _______________________________________________
> Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
> Post to     : openstack at lists.openstack.org
> Unsubscribe : 
> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
>


_______________________________________________
Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
Post to     : openstack at lists.openstack.org
Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack

_______________________________________________
Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
Post to     : openstack at lists.openstack.org
Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openst
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstack.org/pipermail/openstack/attachments/20160224/13ba4a85/attachment.html>