As stated on `/etc/macchanger/ifupdown.sh` [here is](https://bugzilla.gnome.org/show_bug.cgi?id=387832) the upstream Network Manager bug.
** Bug watch added: GNOME Bug Tracker #387832 https://bugzilla.gnome.org/show_bug.cgi?id=387832 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/336736 Title: NetworkManager does not call /etc/network/if-pre-up.d scripts To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/336736/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs