WireShark is the first thing that jumps to mind, although I'm not sure if easy for non-technical users is the way I'd describe it. https://www.wireshark.org/ h

WireShark is the first thing that jumps to mind, although I'm not sure if easy for non-technical users is the way I'd describe it. https://www.wireshark.org/ https://www.wireshark.org/