The open road: Ethereal
This month, I'll discuss Ethereal, a tool for browsing network traffic interactively and analyzing network traffic. To put it more emphatically, Ethereal is the all-singing, all-dancing, packet-inspecting tool that all admins should have in their software toolboxes.
Ethereal is capable of capturing packets for analysis or reading saved packet captures in a number of common formats. Ethereal support libpcap/tcpdump, Sun's snoop/atmsnoop, LanAlyzer, MS Network Monitor, HPUX nettl, AIX iptrace, Cisco Secure IDS, and a number of others. (The full list can be found in the FAQ.) Ethereal supports more than 530 network protocols. You can also see supported protocols by selecting "Supported Protocols" from Ethereals Help menu.
By Joe "Zonker" Brockmeier at Unix Review.
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- Software: Ethereal