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[OpenStack Infra <1697410@xxxxxxxxxxxxxxxxxx>]

Reviewed:  https://review.openstack.org/473356
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=0415f4f50cf1cd020c43acffb1330fda23b65d95
Submitter: Jenkins
Branch:    master

commit 0415f4f50cf1cd020c43acffb1330fda23b65d95
Author: Dongcan Ye <hellochosen@xxxxxxxxx>
Date:   Mon Jun 12 18:39:55 2017 +0800

    Fix bug when checking duplicated subnets for router interface
    
    If user set gateway for router first, and gateway subnet
    overlapped with tenant subnet, will cause add router interface
    to fail.
    
    Add router interface checking for duplicated subnets should
    ingore the gateway network.
    
    This patch also filters gateway network when creating gw port.
    
    Change-Id: Idcc8be221656ace13b12b62f559e4cb9a6af4f32
    Closes-Bug: #1697410


** Changed in: neutron
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/1697410

Title:
  Add router interface checking for duplicated subnets should ingore
  external network

Status in neutron:
  Fix Released

Bug description:
  When adding router interface by subnet, it will check the router
  attached port, this will cause add router interface failed in some
  situation.

  =======================Steps to reproduce=======================
  $ neutron net-create test
  $ neutron subnet-create test 192.168.138.0/24 --name test-subnet
  $ neutron router-create test-router

  # In this step, ext-net has cidr 192.168.128.0/20
  $ neutron router-gateway-set test-router ext-net

  $ neutron router-interface-add test-router test-subnet
  neutron CLI is deprecated and will be removed in the future. Use openstack CLI instead.
  Bad router request: Cidr 192.168.138.0/24 of subnet 72a72809-371b-47e1-a70f-15fb9a342760 overlaps with cidr 192.168.128.0/20 of subnet ec039c18-2eba-47c6-b219-fdc76a0caf66.
  Neutron server returns request_ids: ['req-8b9b3d8f-44c9-437c-9b2b-98d1761d4b1c']

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