ARP Scan of your network and an action attached to it

I had the desire to create a script that checks your network for Mac Adresses, this is used as a signatur eof your network. When this signature changes too much, you can attach an action to it. In my example a Virtual machine is shutdown.

So your system becomes a fortress, when you let this script loop for every seperate Virtual Machine, it closes down gratually.

Ofcourse you can also use other actions to it.