WinDivert: Windows Packet Divert
tcptrace analyzes packet tcp connections and provides analysis
USB Packet capture for Windows
Xplico is a Network Forensic Analysis Tool (NFAT)
A MAC address based user authentication system for campus-wide network
Zero copy MMAP linux network drivers
...has moved to packetpeeper.org
Collect and display host IP traffic statistics
Simple Multi Protocol Packet Sniffer - SMPPS