Comcast Activates First Users With IPv6 Native Dual Stack Over DOCSIS

Brzozowski, John John_Brzozowski at
Wed Feb 2 14:31:07 CET 2011


The short answer is as follows:

* this is a trial, so we are taking a conservative approach
* this may not be the default configuration for production roll out
* lastly, the gateway does not need any more than a /64 and as such did
not provide a hint for anything shorter

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

On 2/2/11 3:41 AM, "Mark Smith"
<nanog at> wrote:

>On Mon, 31 Jan 2011 16:50:09 -0500
>John Jason Brzozowski <jjmb at> wrote:
>> FYI
>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.

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