Network Traffic Analyzer (formerly known as sniffer) is designed to be an extremely powerful, configurable, and versatile tool for monitoring network traffic. It can be used as a plain sniffer, as a tool for accounting, dynamic firewall updates, and many more things. It features scripting support and an event-driven architecture.
You can download it from the following link: https://packetstormsecurity.com/files/download/29915/ntal-0.2.2.tar.gz
Source: https://packetstormsecurity.com/files/29915/ntal-0.2.2.tar.gz.html