On 14.04, Netowrk-Manager is fine. The problem is at dnsmasq receiving ipv6 nameservers from dbus. Here is the proposed fix in parsing ipv6 address length.
** Patch added: "dnsmasq-2.68-fix-ipv6-ns.patch" https://bugs.launchpad.net/ubuntu/+source/dnsmasq/+bug/1327477/+attachment/4127746/+files/dnsmasq-2.68-fix-ipv6-ns.patch -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to dnsmasq in Ubuntu. https://bugs.launchpad.net/bugs/1327477 Title: dnsmasq not using all DHCPv6 provided nameservers To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dnsmasq/+bug/1327477/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs