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From: Mills@UDEL.EDU
Newsgroups: comp.protocols.tcp-ip
Subject: Re:  ICMP echo
Message-ID: <8704282235.a021924@Huey.UDEL.EDU>
Date: Tue, 28-Apr-87 22:35:40 EDT
Article-I.D.: Huey.8704282235.a021924
Posted: Tue Apr 28 22:35:40 1987
Date-Received: Sat, 2-May-87 05:00:10 EDT
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Bob,

Byte my tongue if I can't resist responding to your challenge. THe fuzzies
have been using one-way pings (between themselves)  since 1979. I discovered the
value of these things at 0500 the morning of the SATNET demonstration at NCC
while trying to bring up TOPS-20s in California, facsimile machines in London
and fuzzballs scattered all over, all this in the midst of power failures
at ISI, wandering satellite antennas in Maryland and buzzy amplifiers on
the convention floor. The one-way buggers were useful, since the satellite
channel was very flaky and we only needed it from London to Washington
for a packet-voice and facsimile demo.

All this was almost eight years ago when ICMP was really a wart on the side
of GGP. But that's a story for another time.

Dave