[arin-ppml] V6 address allocation policy
gbonser at seven.com
Mon Jan 18 00:18:07 EST 2010
> -----Original Message-----
> From: arin-ppml-bounces at arin.net On
> Behalf Of James Hess
> Sent: Sunday, January 17, 2010 7:38 PM
> However... I wonder how 'random' the 40-bit global ID will
> actually be in practice.
> If the actual entropy behind 'global id creation' in practice
> turns out to be less than true randomness, then the results
> regarding probabiliity of collision are also fallible.
I agree. People needing just one net are likely to use the first net of
the block for local assignment or number facilities sequentially even
though they are asked not to. I suppose the RIR's could issue space out
of FC00::/8 to anyone who asks and people still have FD00::/8 to use as
they wish. That would mean no chance of a collision in FC00::/8 unless
connecting to someone numbered from a different RIR. It's one more
thing for the RIR's to keep track of, though.
Basically it means changing the L bit to mean 1=assigned by the
organization 0=assigned by the organization's RIR
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