Comcast Activates First Users With IPv6 Native Dual Stack Over DOCSIS

Brzozowski, John John_Brzozowski at
Wed Feb 2 14:52:36 CET 2011


Please read my earlier reply, if you have questions or concerns please do
not hesitate to send email.

John Jason Brzozowski
Comcast Cable
e) mailto:john_brzozowski at
o) 609-377-6594
m) 484-962-0060

On 2/2/11 8:50 AM, "Benny Amorsen" <benny+usenet at> wrote:

>Mark Smith writes:
>> Why a single /64? You certainly won't be only getting just a /32, and
>> I'm sure you've got way less than 4 billion customers. A /60 would have
>> been a conservative option if you wanted to dip your toe in the water,
>> yet still would allowing people to use subnets in their home if they
>> wanted to perform some of their own experiments - your trial
>> participants are more likely to have a few routers in their home that
>> they may want to use to experiment with IPv6 and IPv6 routing.
>Indeed, we can only hope that Comcast is smarter than going into
>production with /64 per customer. And that no one looks at it and gets
>"good" ideas.
>/64 per customer will lead to the development of fancy boxes based on
>RFC 4389 if we are lucky, and creative NAT if we are unlucky.

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