[arin-discuss] IPv6 End User Assignments

[Leo Bicknell]

Simple answers.

All original IPv6 documentation said a /48 per customer (more or less).

The ARIN region has been the most agressive at documenting exceptions
to this rule.  For instance it was pointed out providing more than
a /128 to a dial-up user may not really make sense, or if you're a
colo doing all the routing for folks you might well supply a /64
to a customer as you route them a VLAN, rather than /48's.  The output
is the rules you now see in the NRPM.

I think there is still an expectation that if you're providind DSL/Cable
etc high speed service to home users they will get something that can be
subnetted, e.g. a /56 at a minimum.

In a message written on Wed, May 06, 2009 at 08:43:40AM -0600, Matthew Wilder wrote:
> What size of IPv6 subnet would you imagine an ADSL customer (consumer, not business) would get from their ISP?  The NRPM actually has nifty guidelines around subnet assignment here:
> 
> /64 when it is known that one and only one subnet is needed 
> /56 for small sites, those expected to need only a few subnets over the next 5 years. 
> /48 for larger sites 

Note that the text you site is from 6.5.4.1,
https://www.arin.net/policy/nrpm.html#six541

They are guidelines.  The first paragraph still allows you to assign a
/48 to every customer.  If you want to go that route for your business,
you can still do that.

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