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[OpenStack Infra <1799138@xxxxxxxxxxxxxxxxxx>]

Reviewed:  https://review.openstack.org/614727
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=433228dd78098ca84a13c75b9dc5ce40f43c7f9d
Submitter: Zuul
Branch:    master

commit 433228dd78098ca84a13c75b9dc5ce40f43c7f9d
Author: LIU Yulong <i@xxxxxxxxxxxx>
Date:   Mon Oct 8 14:52:16 2018 +0800

    Prevent bind fip to port has port forwarding
    
    If one port has port forwarding and the port is under
    a dvr router, then binding floating IP to this port
    will not be allowed.
    
    Change-Id: Ia014e18264b43cf751a5bc0e82bc55d106582620
    Closes-Bug: #1799138


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

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https://bugs.launchpad.net/bugs/1799138

Title:
  [l3][port_forwarding] a port can have port_forwarding and then bind
  floating IP again

Status in neutron:
  Fix Released

Bug description:
  ENV: devstack master

  step to reproduce:
  1. create one distributed router, and connected it to private subnet, and set public gateway.
  2. create VM to the private subnet
  3. create floating IP A with port forwarding to the VM port
  4. binding floating IP B to VM port

  Then floating IP A with port forwarding will not work. This should be restricted by neutron.
  Something really similar to bug:
  https://bugs.launchpad.net/neutron/+bug/1799137

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