I'd like to experiment with monitoring my home network traffic and wondering if a particular solution I have in mind will work. I have a pretty standard setup, Verizon FIOS coming in to my house and going through a Verizon provided router, which in turn routes traffic for several devices (home computer, phones, etc).
I am wondering if I can put a switch "in front" (or more preferrably, "to the side") so that I can then plug in a dedicated machine (like a Pi or old laptop) which in turn runs snort or whatever IDS I want. However, I'm wary of configuring a gateway machine (e.g., Pi as a gateway machine) because I want the simplest solution to unwind if needed, and I want to incur the least risk (i.e., bad configuration).
Basically, I am thinking that a switch will allow me an easy way to sniff incoming/outgoing traffic w/o forcing me to put that IDS in line.
Is there any merit to this and, if so, any particular switch/hub recommendations?