🚀 go-pugleaf

   There are a variety of ethernet analyzers available that do packet capture
and decoding, etc. and most of them come in or can be installed in a portable.
   Systems that include hardware, and tend to be more powerful than software
only products, include the LANalyzer from Novell, Network General's Sniffer,
HP's Network Advisor, and a few others.  My bias is the LANalyzer, but then it
is my product in part. :-)
   For software only products, that will work with (more or less) arbitrary
network interface cards, the available stuff includes Novell's LANalyzer for
Windows (nee NetWare), Intel's NetSight analyst, and about a half dozen or
dozen others I can't remember at the moment.  Again, my bias should be 
obvious.
   The best thing to do is probably to compare a number of these products to
see which best suits your needs.  The hardware based products tend to run
anywhere from 10K to 30K dollars, while the software only products are almost
invariably under 2K, and often under 1K in price.

Bob


Bob Pratt                               | voice     : (408) 473-8274
Network Management Products Division    | Fax       : (408) 435-1706
Novell, Inc.                            | more voice: (800) 243-8526
2180 Fortune Drive, San Jose, Ca. 95131 | Internet  : rpratt@Novell.com
"It isn't that I can't help these people, it's that I don't want to."
Disclaimer:  I do not speak for Novell in any way, shape, or form.