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Re: IPv6 end user addressing
From: Joel Jaeggli <joelja () bogus com>
Date: Sun, 7 Aug 2011 08:26:09 -0700

On Aug 5, 2011, at 9:17 AM, Brian Mengel wrote:

In reviewing IPv6 end user allocation policies, I can find little
agreement on what prefix length is appropriate for residential end
users.  /64 and /56 seem to be the favorite candidates, with /56 being
slightly preferred.

I am most curious as to why a /60 prefix is not considered when trying
to address this problem.  It provides 16 /64 subnetworks, which seems
like an adequate amount for an end user.

Does anyone have opinions on the BCP for end user addressing in IPv6?

When you have a device that delegates, e.g. a cpe taking it's assigned prefix, and delegating a fraction of it to a 
downstream device, you need enough bits that you can make them out, possibly more than once. if you want that to happen 
automatically you want enough bits that user-intervention is never (for small values of never) required in to subnet 
when connecting devices together...

the homenet wg is exploring how devices in the home might address the issue of topology discovery in conjunction with 
delegation, which realistically home networks are going to have to do...


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