VoIP SIP and SKINNY quality analyzer and packet / audio recording tool
A network security analysis and monitoring toolkit Linux distribution.
Next Generation Open Source Firewall
Wide Area Network Emulator
Xplico is a Network Forensic Analysis Tool (NFAT)
PCAP from another point of view
Linux Server and Data-Center WAN Optimization
PotHead
web based user interface for netem
A simple OpenBSD's firewall
network control and reporting
A web based user interface for the Netem network emulator
Network Intrusion Detection and Full Packet Capture System