ISP customer assignments

[marka at isc.org (Mark Andrews)]

In message <op.u1rnahbbtfhldh at rbeam.xactional.com>, "Ricky Beam" writes:
> On Tue, 13 Oct 2009 09:33:03 -0400, Justin Shore <justin at justinshore.com>  
> wrote:
> > He didn't really give much of a reason for the /127s yet.  I think it's  
> > coming up in a later session.  I think it basically boiled down to  
> > whether or not the customer would actually use anything bigger.  I'll  
> > write back when we get into that discussion.
> 
> It's the IPv6 equiv of an IPv4 /30 link network.  Then a /64 or whatever  
> can be aimed to that link address.  This is exactly what Bellsouth does  
> for business DSL: the link has a dynamic address and your netblock is then  
> routed to it. (this is confusing and unworkable for a lot of cheap  
> hardware.)

Just use a /64 for the customer link.  That allows them to have a CGA if
they need one.

Mark
-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: marka at isc.org