Request for NetworkManager Pre-Up Hook

Solution Verified - Updated -

Issue

Currently there are post up/down hooks in NetworkManager to run scripts when an interface goes up/down. However, in some cases it might be beneficial to run a pre-up hook script, e.g., to apply some additional firewall rules when an untrusted wireless interface appears.

Is it possible to provide a possibility to run pre-up hook scripts in NetworkManager?

Environment

Red Hat Enterprise Linux 6

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