tcpdump mailing list archives

Tcpdump time discrepancy (vs ethereal/tcptrace)


From: Aaron Mitchell <amitchel () masaka cs ohiou edu>
Date: Thu, 22 Jul 2004 16:47:30 -0400

I've noticed a peculiar behavior.  Given the same hand-crafted
dump file (with an intended time of 5:36 on Jan 1, 1970), tcpdump
reports a time of 6:36 for default output, and a time of 10:36 when
run with the -tttt option ("supposedly" same time with date info
prepended).  Both ethereal and tcptrace report the predicted time of
5:36.

The tested file can be found at:
http://masaka.cs.ohiou.edu/~amitchel/timebug.dmp

(Please note that not all packet fields are valid [including
checksums].  It exists simply for testing purposes).

-- 
Aaron Mitchell <amitchel () cs ohiou edu>
http://oak.cats.ohiou.edu/~am283298/

----- End forwarded message -----

-- 
Aaron Mitchell <amitchel () cs ohiou edu>
http://oak.cats.ohiou.edu/~am283298/
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