[Neutron] Can I create VM on flat network which doesnt have any subnet attached to it.

Slawomir Kaplonski skaplons at redhat.com
Wed May 8 15:30:57 UTC 2019


I don’t think this is currently supported. But there is ongoing work to add support for such feature. See [1] for details.

[1] https://review.opendev.org/#/c/641670/

> On 3 May 2019, at 13:01, Akki yadav <yadav.akshay58 at gmail.com> wrote:
> Hello Team,
> Hope you all are doing good. I wanted to know that can I launch a VM on a flat network directly which doesn't have any subnet attached to it.
> Steps to be followed:
> Create a flat Network without a subnet
> Attach the network to create a VM.
> Aim :- Spawn 2 VM's on network without any subnet, without any IP assigned to them. Then statically allocate same subnet IP to them and ping each other.
> Issue:- VM creation is getting failed stating that there is no subnet found.
> How can we resolve this?
> Thanks & Regards
> Akshay

Slawek Kaplonski
Senior software engineer
Red Hat

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