[Openstack] Is there any way to extend the ip address of subnet?

Dmitry Mescheryakov dmescheryakov at mirantis.com
Fri Nov 8 10:10:39 UTC 2013


Sam,

172.16.2.0/24 is part of 172.16.0.0/16 network. I guess that is why Neutron
does not allow creating that second network.

Dmitry


2013/11/8 Sam Lee <lixq2000 at gmail.com>

> Thank you all of you. I will update db directly for now.
>
> @Harshad, I have tried to create a new subnet, but there is something
> wrong with the CIDR of subnet. for example, Quantum considers CIDR
> 172.16.0.0/16 and 172.16.2.0/24 are the same. I only has ip address
> 172.16.0.0/16 for floatingip.
>
>
> 2013/11/8 Robert Collins <robertc at robertcollins.net>
>
>> I've reopened https://bugs.launchpad.net/neutron/+bug/1111572 as you
>> say it should be supported :)
>>
>> On 7 November 2013 22:28, Aaron Rosen <arosen at nicira.com> wrote:
>> > Hi Sam,
>> >
>> > Unfortunately we do not support updating the allocation-pools on
>> subnets at
>> > this time. This is something that we should definitely fix though in
>> > neutron.
>> >
>> > Aaron
>> >
>> >
>> > On Wed, Nov 6, 2013 at 10:46 PM, Sam Lee <lixq2000 at gmail.com> wrote:
>> >>
>> >> Hi All,
>> >>
>> >>           I have created a subnet with 10 ips. But now I need more than
>> >> ten instances, is there any way to extend the subnet to add ip address?
>> >>           eg:
>> >>           I have ten ips as following:
>> >>                 172.16.2.210  ~ 172.16.2.220
>> >>
>> >>           I want to add 20 more ips, and so the result will be
>> >>                 172.16.2.210 ~ 172.16.2.230
>> >>
>> >>          I try subnet-update command and create a new subnet with the
>> same
>> >> CIDR, but it doesn't work correctly.
>> >>
>> >>          Thanks in advance.
>> >>
>> >> _______________________________________________
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>> >
>> >
>> > _______________________________________________
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>>
>>
>>
>> --
>> Robert Collins <rbtcollins at hp.com>
>> Distinguished Technologist
>> HP Converged Cloud
>>
>
>
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