Public bug reported: When I disabled a router, changed it to L3 HA and enabled it again all the logic that was implemented in [1] did not seem to work.
Please see the thread on ML [2] for details. The backup router had the net.ipv6.conf.qr-<interface>.accept_ra values for the qr interfaces (one for ipv4 and one for ipv6) set to 1. On the active router the net.ipv6.conf.all.forwarding option was set to 0. After removing SLAAC addresses on the backup router, setting accept_ra to 0 and enabling ipv6 forwarding on the active router it started working again. Please let me know if you need anything to troubleshoot this here or on IRC (tobias-urdin). Best regards Tobias [1] https://review.openstack.org/#/q/topic:bug/1667756+(status:open+OR+status:merged [2] http://lists.openstack.org/pipermail/openstack-dev/2018-August/133499.html ** Affects: neutron Importance: Undecided Status: New -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https://bugs.launchpad.net/bugs/1787919 Title: Upgrade router to L3 HA broke IPv6 Status in neutron: New Bug description: When I disabled a router, changed it to L3 HA and enabled it again all the logic that was implemented in [1] did not seem to work. Please see the thread on ML [2] for details. The backup router had the net.ipv6.conf.qr-<interface>.accept_ra values for the qr interfaces (one for ipv4 and one for ipv6) set to 1. On the active router the net.ipv6.conf.all.forwarding option was set to 0. After removing SLAAC addresses on the backup router, setting accept_ra to 0 and enabling ipv6 forwarding on the active router it started working again. Please let me know if you need anything to troubleshoot this here or on IRC (tobias-urdin). Best regards Tobias [1] https://review.openstack.org/#/q/topic:bug/1667756+(status:open+OR+status:merged [2] http://lists.openstack.org/pipermail/openstack-dev/2018-August/133499.html To manage notifications about this bug go to: https://bugs.launchpad.net/neutron/+bug/1787919/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : [email protected] Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp

