comcast ipv6 PTR

Wed Oct 9 16:47:16 UTC 2013

On Wed, 9 Oct 2013 11:41:50 -0500
  Chris Adams <cma at cmadams.net> wrote:
> Once upon a time, Blair Trosper <blair.trosper at gmail.com> said:
>> Does anyone know why (or can someone from Comcast explain why) there 
>>is no
>> PTR on their residential/business IPv6 addresses?
> 
> I believe business customers (with a static assignment) can request
> reverse DNS entries.  Residential customers are not guaranteed a 
>static
> assignment, so they can't get reverse set.
> 
> -- 
> Chris Adams <cma at cmadams.net>
> 

But how would thet differ from the IPv4 address space which has PTR 
records for all their IP's? Just the shear number they would have to 
deal with in the IPv6 space?

Robert