BWMeter is a powerful bandwidth meter, monitor and traffic controller, which measures, displays and controls all traffic to/from your computer or on your network. Unlike other products, it can analyze the data packets (where they come from, where they go, which port and protocol they use). BWMeter can create statistics for all computers in your network, measure, display and control all LAN traffic as well as download / upload from the internet.
* New: support for SSL in email notifications (e.g. for gmail)
* Fix: various small internal improvements and bug fixes
Internet and communication
Product page: here