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Thanks Brian for your reply and your contributions.

On Aug 22, 2016 2:09 PM, "Brian Haley" <brian.haley at hpe.com> wrote:

> 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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>
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