Investigation found that DAD timeout for IPv6 seems to be not implemented for network manager [1]. And only support up to IPv4. It looks like a limitation but couldn't find any writing confirmation for this limitation.
[1] https://developer.gnome.org/NetworkManager/stable/settings-ipv6.html -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1796622 Title: NetworkManager IPv6 DAD lifetime behavior introduce security risk To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1796622/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
