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On Thu, May 07, 2020 at 03:39:07AM -0400, Francois-Xavier Le Bail via 
tcpdump-workers wrote:
> What if the first nibble is <> de 4, 6, 1, 0, e.g. 'f' like the first f of 
> ff:ff:ff:ff:ff:ff ?

This is, as far as I understand, the primary reason why control word
was added.  Routers misinterpretation these packets due to MAC addresses
starting with "4" or "6".


"If was one thing all people took for granted, was conviction that if you 
 feed honest figures into a computer, honest figures come out. Never doubted 
 it myself till I met a computer with a sense of humor."
                             Robert A. Heinlein, The Moon is a Harsh Mistress

Gert Doering - Munich, Germany                             g...@greenie.muc.de

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