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

[Lucas Alvares Gomes]

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.

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/neutron 18.0.0.0rc1 release candidate.

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/networking-ovn 7.4.1 release.

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/neutron 16.3.2 release.

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/neutron 17.1.2 release.