Powerful command-line packet analyzer
Tcpdump prints out a description of the contents of packets on a network interface that match the boolean expression.
Tcpdump can also be run with the -w flag, which causes it to save the packet data to a file for later analysis, and/or with the -r flag, which causes it to read from a saved packet file rather than to read packets from a network interface.
In all cases, only packets that match expression will be processed by tcpdump.
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What's New in This Release:
- merged 802.15.4 decoder from Dmitry Eremin-Solenikov
- updates to forces for new port numbers
- Use "-H", not "-h", for the 802.11s option. (-h always help)
- Better ICMPv6 checksum handling.