Internet Info CDROM, August 1994.  Walnut Creek CDROM.
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\net\ip\trace\tcpdump
path: \networki\ip\trace\tcpdump 
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Name             Size    Date    Description
------------     ----    ----    ---------------------
TCPDUMP_.DIF   10,200  06-01-92  tcpdump-2.2-2.2.1.diff
TCPDUMP0.GZ   182,252  06-01-92  tcpdump-2.2.1.tar.gz
TCPDUMP1.GZ   182,288  06-01-92  tcpdump-2.2.old.tar.gz