With so many devices that have internet connectivity, I really want to put something in place that can alert me if any application or device is communicating insecurely. How would I use something like OSSIM or Snort or something to be able to determine if credentials are being passed.
From my thinking, it appears that what I would need to do is to somehow place something between the router and everything else so I can intercept.
Edit: Here is a very basic mockup of the devices on my home network. My goal is to figure out a way to get the Security Onion VM running on my PC to be able to monitor all traffic throughout the network. I am unsure if I need/how to configure a TAP on the network. Do I need a managed switch rather than the unmanaged? Here is the mockup: https://www.lucidchart.com/documents/view/abc0cc81-dc4c-450c-84bd-c7aa33d7255f