Bash Script to track changes of Mac adresses and IP adresses in your network

With This Script you can track the changes in your IP adresses and mac adresses within your own network. And you can add consequences when there are too many changes. In my case, a Virtualmachine will be shut down.

Every virtual machine that is running, runs under a specific user name, the script checks wich Virtual Machines are running under the username and then shuts it down.

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.