mailing list archives
Re: IPv6 end user addressing
From: Jimmy Hess <mysidia () gmail com>
Date: Sat, 6 Aug 2011 13:44:45 -0500
On Sat, Aug 6, 2011 at 1:28 PM, William Herrin <bill () herrin us> wrote:
On Fri, Aug 5, 2011 at 12:17 PM, Brian Mengel <bmengel () gmail com> wrote:
On the flip side, /56 allows for 16M end-users in your /32 ISP
allocation. After which you can trivially get as many additional /32's
as you want. Is there any reason you want to super-optimize to get
268M end-users squashed in that /32?
Arguably, if you only have one /32, and you ever get 65,536 customers
each with a /48, getting as many /32s as you need should be no problem,
But you might want to give them /56s, so you have more bits to logically
divide those customers by region, or some other criteria to enable
more efficient aggregation.
That's the problem with the RIR's choice of issuing only /32s from which
/48s are to be assigned.
The customer has 80 bits to work with in organizing their hosts.
But the ISP has only 16 bits in a /32 to work with.
Re: IPv6 end user addressing Doug Barton (Aug 05)
Re: IPv6 end user addressing William Herrin (Aug 06)
Re: IPv6 end user addressing Matthew Moyle-Croft (Aug 09)
Re: IPv6 end user addressing Mohacsi Janos (Aug 09)
- Re: IPv6 end user addressing Jimmy Hess (Aug 06)