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From: info-vax@ucbvax.ARPA
Newsgroups: fa.info-vax
Subject: Re: Pinging gateways
Message-ID: <2477@ucbvax.ARPA>
Date: Thu, 11-Oct-84 14:13:14 EDT
Article-I.D.: ucbvax.2477
Posted: Thu Oct 11 14:13:14 1984
Date-Received: Sat, 13-Oct-84 02:00:37 EDT
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Organization: University of California at Berkeley
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From: Paul Milazzo 

Rudy:

What Ron meant was that he wants a program with which can manually send
out pings and look for responses.  He is interested in using such a
program as a manual diagnostic aid for connectivity analysis, not part
of his standard operating procedure.  I'm sure that by now we're all
aware that pinging in the TOPS-20 sense is a bad idea.

Incidentally, the particular problem Ron wishes to diagnose is why,
after correcting his routing information, we (Rice) can connect to
JPL-VLSI, but JPL-VLSI can't open connections to us at either our
CSNET-PDN or RICE-NET address.  I've never seen this sort of asymmetric
behavior in a TCP/IP.  Does anyone out there have any ideas?

				Paul G. Milazzo 
				Dept. of Computer Science
				Rice University, Houston, TX