Subj : List of IPv6 nodes
To   : Michiel van der Vlist
From : Victor Sudakov
Date : Fri Jan 07 2022 10:32:48

Dear Michiel,

06 Jan 22 14:04, you wrote to Wilfred van Velzen:

 WV>> So maybe it is just to save a bit on addresses? If only 1% of
 WV>> customers isn't online at any give time, if you have a milion
 WV>> customers that is still 10000 addresses...

 MV> 1) For IPv6 it is no issue. There is no shortage on IPv6 adresses.
 MV> (yet)

And may never happen. But a shortage on IPv6 prefixes can happen IMHO, if /48s are given away easily. There is only 35 million million (35 trillion) /48 blocks in the current global 2000::/3 pool. A trillion is not that much, I think a trillion bacteria live on 1 human person.

Do you know if the 2000::/3 global pool can be extended if necessary?

OTOH, we don't need an IPv6 *prefix* per each bacteria, one IPv6 *address* per bacteria is sufficient, so a /64 for each human being is more than enough.

Victor Sudakov, VAS4-RIPE, VAS47-RIPN
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