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Old 05-17-2004
tcpdump error: no suitable device found
Hi,

I'm trying to use tcpdump for the first time. I installed tcpdump from the rpm. Now when I issue the command tcpdump port 6666, I get an error

tcpdump: no suitable device found

Can you tell me what's wrong there?

Thank,
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LEARN ABOUT DEBIAN

ttt

ttt(1)									net								    ttt(1)

NAME

       ttt - Tele Traffic Tapper - a standalone program for local, real-time, graphical traffic-monitoring.

SYNTAX

       ttt [-interface device] [-interval ms] [-dumpfile file [-speed N]] [-yscale (K|M|n)]

DESCRIPTION

       ttt is the standalone traffic monitor program in the ttt program suite. It displays trafic-data of a local interface.

       To run ttt, you must be "root" on most systems since only root is allowed to access the network filter device.

       The  ttt program suite is yet another descendant of tcpdump but it is capable of real-time, graphical, local and remote traffic-monitoring.
       It won't replace tcpdump, rather, it helps you find out what to look into with tcpdump.

OPTIONS

       -interface device
	      specifies the interface for packet capture. If not specified, the default interface is chosen.

       -interval ms
	      Sets the interval in Milliseconds. If omitted, a interval of 1000 msec. is used as default.

       -dumpfile file [-speed N]
	      use a dumpfile (produced by "tcpdump -w") as input. The speed option specifies the acceleration factor of the replay speed.

       -yscale ('K'|'M'|n)
	      change the scale of y-axis. 'K' and 'M' represent 1000 and 1000000 respectively.

EXAMPLES

       To run this program the standard way type:

	      ttt

       To listen only on interface eth0:

	      ttt -interface eth0

AUTHORS

       ttt was written by Kenjiro Cho < kjc@csl.sony.co.jp>.

       This manual page was written by Thomas Scheffczyk <thomas.scheffczyk@verwaltung.uni-mainz.de>, for the Debian GNU/Linux system (but may	be
       used by others).

SEE ALSO

       tttview(1), tttprobe(1)

Kenjiro Cho								1.7								    ttt(1)