On Tue, 19 Dec 2017 20:18:57 +0000, "UpTide ." said: > If we allocate a /64 like we do single ipv4 addresses now the space gets 2^56 > (16777216) times larger; but if we start doing something crazy like allocating > a /48 or /56 that number plummets. (256 times larger, and 65536 times larger > respectfully.)
You seem to have missed an entire octet's worth of bits, so off by a factor of 256... A /48 is 16 more bits than a /32, so 65536 times bigger. A /56 is 24 more bits than a /32, so 16777216 times bigger. And a /64 is 32 bits more than a /32... so.... Given that a /33 is just about enough to give everybody in the planet one, giving away 8 million times that many is going to be a challenge, unless somebody invents nanotech that wants a separate address for each nanomachine. But I'd argue that if I have personal nanotech, I *really* want to use ULA addresses. They're *my* nanotech. :)
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