Network protocol analyzer for Windows and Unix that allows examination of data from a live network, or from a capture file on disk.

Ettercap is a multipurpose sniffer/interceptor/logger for switched LAN. It supports active and passive dissection of many protocols (even ciphered ones) and includes many feature for network and host analysis.

Controller area network(CAN) analysis can tools (CANalyzer, CANoe, CANcardX) and training, integration, source code services.

Captures packets on network, shows data of application layer together, and provides TCP flow view.

A program for monitoring network activity capable of capturing and analyzing packets on an Ethernet network or dial-up connection. This sniffer can run on any Windows 95/98/Me/NT/2000 system.

Network monitoring, analysis, reporting and capacity planning tools.

Provides test and measurement solutions for computer I/O, storage and networking protocols, enhancing productivity and time to market.

The leader in affordable, PC-based serial, Ethernet, Bluetooth, Industrial Automation, and SCADA data communication protocol analyzers and test equipment.

Provide a HTTP protocol network sniffer, packet analyzer and file rebuilder. It is dedicated to capture IP packets containing HTTP protocol, rebuild and save the HTTP communications and files sent through HTTP protocol.

Sniff'em a promicious Packet Sniffer. A next-generation network protocol analyzer or sniffer, Sniff'em allows the network administrator to capture and retrace the steps of any network user with never before seen ease.