I'm trying to establish a classic openvswitch network scenario ( http://docs.openstack.org/mitaka/networking-guide/scenario-classic-ovs.html ) using Ubuntu 16.04 LTS (Mitaka). All nodes are configured and works fine with IPv4 (networks, floating IPs etc). However, this IPv6 configuration with prefix delegation ( http://docs.openstack.org/mitaka/networking-guide/adv-config-ipv6.html ) is not working here . I've already configured dibbler as recommended, on network node. So, I've created the network and subnet: neutron net-create ipv6-pd neutron subnet-create ipv6-pd --name ipv6-pd-1 --ip_version 6 --ipv6_ra_mode slaac --ipv6_address_mode slaac --use_default_subnetpool At this point the subnet has just the ::/64 indication. But, when I create the router interface in this subnet, the subnet definition doesn't change as in the guide, getting the prefix from dibbler. On the dibbler log I cannot see any request. So, how can I debug and test that the dibbler driver is working (running when I create the interface) on neutron? I've looked for all log for some indication but I never found any registry. Thanks! - JLC -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack/attachments/20160818/c674da94/attachment.html>