Comment 2 for bug 354309

I can't do anything but close this bug report as "Invalid", this is not a bug but a design decision. There are other facilities available to provide a similar functionality (/etc/NetworkManager/dispatcher.d) which also runs some of the ifupdown scripts, and we have some support of the most common hooks to ifupdown when running NetworkManager is managed more. Running normally, NetworkManager *will* (and that's expected and wanted behavior) ignore the devices configured in /etc/network/interfaces.