Ethereal 0.6.1 – Ethereal is a network protocol analyzer that lets you capture and interactively browse the contents of network frames. The goal of the project is to create a commercial quality analyzer for Unix.
You can download it from the following link: https://packetstormsecurity.com/files/download/14426/ethereal-0.6.1.tar.gz
Source: https://packetstormsecurity.com/files/14426/ethereal-0.6.1.tar.gz.html