Whoa. When an interface is brought up with NM the scripts in /etc/network/if-up.d/ somehow get run (how?) but when an interface is downed with NM, the scripts in /etc/network/if-down.d/ don't get run (inconsistent!).
Whoa. When an interface is brought up with NM the scripts in /etc/network/ if-up.d/ somehow get run (how?) but when an interface is downed with NM, the scripts in /etc/network/ if-down. d/ don't get run (inconsistent!).