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[Sean Dague <sean@xxxxxxxxx>]

** No longer affects: nova

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https://bugs.launchpad.net/bugs/1316618

Title:
  add host to security group broken

Status in OpenStack Neutron (virtual network service):
  Fix Released
Status in neutron icehouse series:
  Fix Released

Bug description:
  I am running nova/neutron forked from trunk around 12/30/2013. Neutron
  is configured with openvswitch plugin and security group enabled.

  How to reproduce the issue: create a security group SG1; add a rule to
  allow ingress from SG1 group to port 5000; add host A, B, and C to SG1
  in order.

  It seems that A can talk to B and C over port 5000, B can talk to C,
  but C can talk to neither of A and B. I confirmed that the iptables
  rules are incorrect for A and B. It seems to me that when A is added
  to the group, nothing changed since no other group member exists. When
  B and C were added to the group, A's ingress iptables rules were never
  updated.

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