Network Monitor displays all kind of information in real time (1-second update) about all network adapters (network cards, RAS connections, virtual cards, server monitoring for web hosting) in your system. And it is FREE!

Network Monitor displays for each network adapter: download speed, upload speed, data transfered, IP address, MTU size, adapter type, MAC address, status and many more.

Ссылка: http://www.byso..file=NetworkMonitor.exe