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Re: IPv6 end user addressing
From: Owen DeLong <owen () delong com>
Date: Mon, 8 Aug 2011 13:51:32 -0700


On Aug 8, 2011, at 1:15 AM, Mohacsi Janos wrote:



On Fri, 5 Aug 2011, 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?

For business customers I would give /48 and home users who might have 1-2 subnet I would give /56 or /60.
Reasons:
- Business customers night grow where you have to provide bigger amount of subnet - allow space for future extension -

- Home users - they usually don't know what is subnet. Setting up different subnets in their SOHO router can be 
difficult. Usually the simple 1 subnet for every device is enough for them. Separating some devices into  a separate 
subnets is usually enough for the most sophisticated home users. If  not then he can opt for business serviceā€¦.


This utterly ignores the reality of DHCPv6, DHCP-PD, and technologies currently being developed for rational automatic 
hierarchies of topology.

Owen

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