Hi Kevin,
> "If the entire earth, land and water, were covered with computers,
> IPv6 would allow 7x10^23 IP addresses per square meter. [...] While
> it was not the intention to give every molecule on the surface of the
> earth its own IP address, we are not that far off."
> -- Tannenbaum, _Computer_Networks_, 3rd Edition
I thought it had been worked out the 128 bit space could not be used
"flatly", but rather some structure had to be imposed on it for routing
efficiency (? or something... I can't remember what), and so only about
~1000 IP addresses per meter resulted.
Still a lot, but not nearly enough for covering molecules. Nanocomputers
will likely have to be "firewalls" using private IP address space ;-)
Karl Runge
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