man ipgrab (Administration système) - A Verbose Packet Sniffer
NAME
ipgrab - A Verbose Packet Sniffer
SYNOPSIS
ipgrab [ -blmnpt ] [ -c cnt ] [ -i if ] [ expr ]
IMPORTANT NOTE
This manpage is not kept up to date, please refer to the info pages for more accurate information.
DESCRIPTION
ipgrab reads and parses packets from the link layer through the application layer, dumping explicit header information along the way. It is a lot like tcpdump except that it prints almost every header field.
Options
-b Buffer standard output. Useful when you're redirecting output to a file. -l Don't print link-layer headers. -m Minimal IP/TCP/UDP output. -n Don't print network-layer headers. -p Print packet payloads. -t Don't print transport-layer headers. -c cnt Terminate after receiving cnt packets. -i if Listen on interface if, e.g., eth0. expr Berkeley packet filter expression. See tcpdump(8) man page for details and examples.
SEE ALSO
NOTES
Requires libpcap version 0.3 or greater to be installed. Protocols completely supported include Ethernet, IP, TCP, UDP, DNS, (R)ARP, IPX.
AUTHOR
Michael S. Borella 3Com Corp. 1800 W. Central Rd. Mount Prospect IL 60563 mike_borella@3com.com
BUGS
ICMP and DHCP/BOOTP support is not quite complete. L2TP support is flaky. RIP support is incomplete and SIP/SDP support is very rudimentary.