RCDCap is a remote capture preprocessor
An open source real-time network topology and protocols analyzer
A java PCAP and DPI library
A java packet sniffer and forger that wraps pcap libs.
High interaction honeypot solution for Linux based systems
MitM pentesting opensource toolkit
Various TCP/IP servers, clients and network management tools
Capture and display SIP and DIAMETER messages
Easily clean your pcap dump files
Simple Multi Protocol Packet Sniffer - SMPPS