[arin-discuss] IPv6 End User Assignments

[Leo Bicknell]

In a message written on Fri, May 08, 2009 at 08:51:33AM -0500, Dan White wrote:
> For IPv6, we need to think in terms of *customers*, not IP addresses. 
> Today, a /20 represents < 4096 customers, but probably represents much 
> less than that. In IPv6, a /32 represents 65536 customers assuming /48 
> assignments.

Actually, the IPv6 folks for years have been saying the correct way
to think is in terms of *subnets*.

With 2^64 hosts per subnet you never have to worry about running
out of addresses on a particular subnet.  Thus the entire question
becomes how many subnets do you need to divide things administratively?

-- 
       Leo Bicknell - bicknell at ufp.org - CCIE 3440
        PGP keys at http://www.ufp.org/~bicknell/
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