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[Brian Haley <1919347@xxxxxxxxxxxxxxxxxx>]

** Changed in: neutron
       Status: Confirmed => Fix Released

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https://bugs.launchpad.net/bugs/1919347

Title:
  [OVN] Do not enable send_periodic on router ports which are connected
  to provider networks

Status in neutron:
  Fix Released

Bug description:
  Reported at: https://bugzilla.redhat.com/show_bug.cgi?id=1939468

  Neutron does not make sure the router attached logical ports are
  provider networks before enabling the send_periodic flag on the
  ipv6_ra_config row. This leads the RAs the ovn-controller generates
  for tenant networks to leak out against the DC network via the
  provider network.

  The relevant code is:
  https://opendev.org/openstack/neutron/src/branch/master/neutron/plugins/ml2/drivers/ovn/mech_driver/ovsdb/ovn_client.py#L1021.
  The code confirms there's no type check happening, the only statement
  is making sure IPv6 is enabled and either SLAAC or DHCPv6 are being
  used.

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