@corey Thanks. it works fine as belows. disable_ipv6 is 0
6: ens4f1.1103@ens4f1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master brqc1308c59-e3 state UP group default link/ether 52:54:01:97:26:35 brd ff:ff:ff:ff:ff:ff 7: brqc1308c59-e3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default link/ether 52:54:01:97:26:35 brd ff:ff:ff:ff:ff:ff inet6 fe80::7067:acff:fe3f:2c7c/64 scope link valid_lft forever preferred_lft forever root@maas-node-18:~# cat /proc/sys/net/ipv6/conf/brqc1308c59-e3/disable_ipv6 0 ii neutron-common 2:8.4.0-0ubuntu7.5~cloud0 all Neutron is a virtual network service for Openstack - common ii neutron-dhcp-agent 2:8.4.0-0ubuntu7.5~cloud0 all Neutron is a virtual network service for Openstack - DHCP agent ii neutron-l3-agent 2:8.4.0-0ubuntu7.5~cloud0 all Neutron is a virtual network service for Openstack - l3 agent ii neutron-linuxbridge-agent 2:8.4.0-0ubuntu7.5~cloud0 all Neutron is a virtual network service for Openstack - linuxbridge agent ii neutron-metadata-agent 2:8.4.0-0ubuntu7.5~cloud0 all Neutron is a virtual network service for Openstack - metadata agent ii neutron-plugin-ml2 2:8.4.0-0ubuntu7.5~cloud0 all Neutron is a virtual network service for Openstack - ML2 plugin ii neutron-server 2:8.4.0-0ubuntu7.5~cloud0 all Neutron is a virtual network service for Openstack - server ii python-neutron 2:8.4.0-0ubuntu7.5~cloud0 all Neutron is a virtual network service for Openstack - Python library ** Tags removed: verification-mitaka-needed ** Tags added: verification-mitaka-done -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1662324 Title: linux bridge agent disables ipv6 before adding an ipv6 address To manage notifications about this bug go to: https://bugs.launchpad.net/cloud-archive/+bug/1662324/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs