Ubiquity's products do traffic analysis locally, as you propose. Their Edgerouter X is MSRP $49 USD.. It's based on Debian/Vyatta. On the router, without sendi

Ubiquity's products do traffic analysis locally, as you propose. Their Edgerouter X is MSRP $49 USD.. It's based on Debian/Vyatta. On the router, without sending data to someone else's computer, it will give breakdowns based on Protocol & Destination (e.g. SIP, IMAP, Amazon, Facebook). As I understand the definitions as downloaded periodically/automatically from Ubiquity. So yes, this is not just theoretically possible, this capability exists in the marketplace, and it's demonstrably inexpensive to do.