----- Original Message -----
From: "Robert Elz" <kre(_at_)munnari(_dot_)OZ(_dot_)AU>
Does no-one else still recall the world before ARP, where MAC addresses
(ie: the old 16 bit things that 3Mbit ethernet used) were embedded in the
bottom 16 bits of your class B address (no-one had anything smaller than
that of course...)
http://www1.ietf.org/mail-archive/ietf/Current/msg12458.html
RFC-2001-06-24-000 - 2001 A Space Odyssey
http://www.networksorcery.com/enp/rfc/rfc25.txt
"Because it may be desirable to reserve one or more link numbers for
instrumentation purposes, and because 256 link numbers are many more
than are needed, we suggest that no link number over 63 be used. At
UCLA, we will implement our tables to take advantage of this limitation.
We also note that 32 may be even more realistic, but 64 is certainly
sufficient."
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Jim Fleming
http://www.DOT-Arizona.com
http://www.DOT.Arizona
http://www.dot-arizona.com/IPv8/IPv4/