Carrier Grade NAT

Corey Touchet corey.touchet at
Wed Jul 30 16:09:42 UTC 2014

There¹s still a lot of websites that are not with the times.

No ipv6 on CNN, FOX, or NBC news websites. shame on you!

Comcast and AT&T work, but not Verizon.  No surprise there.  Power company

I think CGN is fine for 99% of customers out there.  Until the iPhone came
out Verizon Wireless had natted all their blackberry customers and saved
million¹s of IP¹s.  Then Apple and Google blew a hole into that plan.

Then again I¹m for IPv4 just running out and finally pushing people to
adopt.  The US Govt has done a better job of moving to IPv6 than private
industry which frankly is amazing all things considered.

Comcast is pushing over 1TBPS of IPv6 traffic, but I¹m sure that¹s mainly
video from Youtube and Netflix.

On 7/30/14, 9:45 AM, "Owen DeLong" <owen at> wrote:

>The only actual residential data I can offer is my own. I am fully dual
>stack and about 40% of my traffic is IPv6. I am a netflix subscriber, but
>also an amazon prime member.
>I will say that if amazon would get off the dime and support IPv6, it
>would make a significant difference.
>Other than amazon and my financial institutions and Kaiser, living
>without IPv4 wouldn't actually pose a hardship as near as I can tell from
>my day without v4 experiment on June 6.
>I know Kaiser is working on it. Amazon apparently recently hired Yuri
>Rich to work on their issues. So that would leave my financial
>I think we are probably less than 5 years from residential IPv4 becoming
>a service that carries a surcharge, if available.
>> On Jul 29, 2014, at 22:42, Julien Goodwin <nanog at>
>>> On 29/07/14 22:22, Owen DeLong wrote:
>>>> On Jul 29, 2014, at 4:13 PM, Mark Andrews <marka at> wrote:
>>>> In message <20140729225352.GO7836 at>, Matt Palmer writes:
>>>>>> On Wed, Jul 30, 2014 at 09:28:53AM +1200, Tony Wicks wrote:
>>>>>> 2. IPv6 is nice (dual stack) but the internet without IPv4 is not a
>>>>>> thing, perhaps one day, but certainly not today (I really hate
>>>>>> people who shout to the hills that IPv6 is the "solution" for
>>>>>> internet access)
>>>>> Do you have IPv6 deployed and available to your entire customer
>>>>>base, so
>>>>> that those who want to use it can do so?  To my way of thinking,
>>>>>CGNAT is
>>>>> probably going to be the number one driver of IPv6 adoption amongst
>>>>> broad customer base, *as long as their ISP provides it*.
>>>> Add to that over half your traffic will switch to IPv6 as long as
>>>> the customer has a IPv6 capable CPE.  That's a lot less logging you
>>>> need to do from day 1.
>>> That would be nice, but I¹m not 100% convinced that it is true.
>>> Though it will be an increasing percentage over time.
>>> Definitely a good way of reducing the load on your CGN, with the
>>>additional benefit
>>> that your network is part of the solution rather than part of the
>> Being on the content provider side I don't know the actual percentages
>> in practice, but in the NANOG region you've got Google/Youtube, NetFlix,
>> Akamai & Facebook all having a significant amount of their services v6
>> native.
>> I'd be very surprised if these four together weren't a majority of any
>> consumer-facing network's traffic in peak times.

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