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Re: IPv6 end user addressing
From: Mark Andrews <marka () isc org>
Date: Thu, 11 Aug 2011 11:09:48 +1000

In message <CADVasu5qev5gUX_oQ=LyJ2JZom=Vf5S56kgeQ4BYEq20gd7+1w () mail gmail com>
, james machado writes:
It isn't hard to do some arithmetic and guess that if every household
in the world had IPv6 connectivity from a relatively low-density
service like the above example, we would still only burn through about
3% of the IPv6 address space on end-users (nothing said about server
farms, etc. here) but what does bother me is that the typical end-user
today has one, single IP address; and now we will be issuing them 2^16
subnets; yet it is not too hard to imagine a future where the global
IPv6 address pool becomes constrained due to service-provider

what is the life expectancy of IPv6?  It won't live forever and we
can't reasonably expect it too.  I understand we don't want run out of
addresses in the next 10-40 years but what about 100? 200? 300?

We will run out and our decedents will go through re-numbering again.
The question becomes what is the life expectancy of IPv6 and does the
allocation plan make a reasonable attempt to run out of addresses
around the end of the expected life of IPv6.

It really depends on whether the RIR's recover and, importantly,
reallocate address space that is not being paid for or not.  If
they do this should last for the forseeable future.  It would also
be my recommendation that RIR's start doing this immediately, if
they are not already doing so, so that there is no expectation that
you can use address space forever without paying for it.

Jeff S Wheeler <jsw () inconcepts biz>
Sr Network Operator=A0 /=A0 Innovative Network Concepts


Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: marka () isc org

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