Justniffer

Justniffer is a network protocol analyser that captures network traffic and produces logs in a customised way, can emulate Apache web server log files, track response times and extract all 'intercepted' files from the HTTP traffic.

It let's you interactively trace TCP traffic from a live network or from a previously saved capture file. Justniffer's native capture file format is libpcap format, which is also the format used by tcpdump and various other tools.

The main Justniffer's feature is the ability to handle all those complex owe level protocol issues and retrieve the correct flow of the TCP/IP traffic: IP fragmentation, TCP retransmission, recordering, etc. It used protions of Linux Kernal source code for handling all TCP/IP related tasks or traffic.