[ih] History of duplicate address tests

[Nelson H. F. Beebe]

John Kristoff asks about duplicate address detection, and mentions his
work on that problem on Token Ring networks.

I just searched our rfc*.txt archives, and found scores of files that
match (ignoring case) "duplicate *address"; the earliest are these
five:

	rfc1231.txt
	rfc1285.txt
	rfc1512.txt
	rfc1513.txt
	rfc1743.txt

The first of those is about John's Token Ring example, and dates from
May 1991.  The fifth is from December 1994.

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- Nelson H. F. Beebe                    Tel: +1 801 581 5254                  -
- University of Utah                                                          -
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