Open Stack

Yes, it uses the lowest for the gateway, I was using ".1" to denote this but 
realize it might not have been the best example.  I'm testing a patch now to 
remove the '--gateway a.b.c.d' if it's not explicitly set since it isn't necessary.

-Brian

On 08/22/2016 01:57 PM, Brent Troge wrote:
> Doesn't neutron use the first available host address in the subnet as the
> gateway? So if your cidr is 128/25 then neutron would default to 129 as the
> gateway.
>
>
> On Aug 22, 2016 9:54 AM, "Brian Haley" <brian.haley at hpe.com
> <mailto:brian.haley at hpe.com>> wrote:
>
>     On 08/21/2016 08:40 PM, Tony Breeds wrote:
>
>         On Sun, Aug 21, 2016 at 05:28:44PM +0530, Akilesh K wrote:
>
>             Hi,
>             I am using devstack for the first time and I see that it has created a
>             subnet like below. The cidr and gateway do not match. Because of this
>             devstack fails to run completely and fails while attaching a router
>             to this
>             subnet. Why is devstack doing this??
>
>
>         You also need to specify NETWORK_GATEWAY in your local.conf:
>             NETWORK_GATEWAY=10.4.128.1
>         should match:
>             FIXED_RANGE=10.4.128.0/20 <http://10.4.128.0/20>
>
>         Our docs need updating as we recently switched from nova to neutron as the
>         default network provider.
>
>
>     What devstack should really be doing is defaulting the gateway to "",
>     neutron will automatically use the ".1" of the subnet for the gateway if not
>     told otherwise.
>
>     I'll try and get a quick patch out today.
>
>     -Brian
>
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