[AusNOG] SPAM-MED: Re: Data Retention and CGNAT - educational exercise

Scott Howard scott at doc.net.au
Thu Mar 26 12:16:27 EST 2015


It is *exactly* what Comcast has done.

They have actively moved people from DOCSIS 2.0 to DOCSIS 3.0 modems (as
required for IPv6) under the excuse of better performance (true in some
cases, but not all).  They actually EOL'ed support for my DOCSIS 2 modem on
the grounds that it would not provide maximum performance after some recent
network upgrades, despite the fact that the plan I was on was well within
what DOCSIS 2.0 provides.

Their DOCSIS 3.0 modems have IPv6 enabled by default, as does basically all
of their cable network.  I don't have one of their routers, but my
understanding is that they are gradually rolling out upgrades to those that
have IPv6 enabled by default too.

I am a beta tester for one of the major CPE vendors, and have been told by
one of their engineers that Comcast is requesting all future cable
modem/routers from them have IPv6 enabled by default, and that's definitely
the case for the modem/router I'm currently testing.

All of this without 99.99% of their customers even knowing what IPv6 is,
let alone knowing that it's enabled on their network.

Of course, nobody is suggesting they will be turning off IPv4 anytime soon,
but if/when they do need to implement CGN you can guarantee they are going
to need a LOT less hardware to implement it than they would have if they
were not so far ahead of the curve on IPv6.

  Scott





On Wed, Mar 25, 2015 at 5:41 PM, Damian Guppy <the.damo at gmail.com> wrote:

> That's pretty much what Comcast has done as I understand it.
>
> --Damian
>
> On Thu, Mar 26, 2015 at 7:59 AM, Michael Gehrmann <
> mgehrmann at macquarietelecom.com> wrote:
>
>>  The fun thing is that most consumers/customers won’t know thus won’t
>> demand it.
>>
>>
>>
>> I say deploy IPv6 by stealth and set every new CPE to be dual stack. All
>> OS now support IPv6 by default. It really needs to be the ISP that leads
>> this.
>>
>>
>>
>> Michael Gehrmann
>>
>> *Hosting Support Specialist – Networks Macquarie Telecom*
>>
>>
>>
>> *From:* AusNOG [mailto:ausnog-bounces at lists.ausnog.net] *On Behalf Of *Kristoffer
>> Sheather @ CloudCentral
>> *Sent:* Thursday, 26 March 2015 10:23 AM
>> *To:* Damien Gardner Jnr; Mark Andrews
>> *Cc:* ausnog at lists.ausnog.net; Kristoffer Sheather
>> *Subject:* Re: [AusNOG] SPAM-MED: Re: Data Retention and CGNAT -
>> educational exercise
>>
>>
>>
>> If the customers needed it then the ISP's would be doing it.
>>
>>
>>
>> When it is needed every ISP under the sun that wants customers will be
>> doing it.
>>
>>
>>
>> Thats the commercial and actual reality.
>>
>>
>>
>>
>>  ------------------------------
>>
>> *From*: "Damien Gardner Jnr" <rendrag at rendrag.net>
>> *Sent*: Thursday, March 26, 2015 10:15 AM
>> *To*: "Mark Andrews" <marka at isc.org>
>> *Cc*: "ausnog at lists.ausnog.net" <ausnog at lists.ausnog.net>, "Kristoffer
>> Sheather" <kris at cloudcentral.com.au>
>> *Subject*: SPAM-MED: Re: [AusNOG] Data Retention and CGNAT - educational
>> exercise
>>
>>
>>
>> It's that 'for every customer that has a IPv6 capable CPE device' that's
>> the problem.  How many Aussie ISP's are actually doing V6 for customers?  I
>> have (almost) every service on my network dual-stacked (one shared-hosting
>> server is yet to be done), and 2% of my total bandwidth volume is v6.
>> Would be curious to hear what others are seeing :)
>>
>>
>> Cheers,
>>
>>
>> DG
>>
>>
>>
>> On 26 March 2015 at 10:11, Mark Andrews <marka at isc.org> wrote:
>>
>>
>> In message <41e778700a994314857ad4504f252419 at cloudcentral.com.au>,
>> "Kristoffer Sheather @ C
>> loudCentral" writes:
>> >
>> > IPv6 won't go anywhere until IPv4 doesn't work anymore.  That day is not
>> > today despite the numerous arguments and flames I expect to receive
>> > subsequent to this message.
>> >
>> >   Regards,
>> > Kristoffer Sheather
>>
>> If you turn on IPv6 +50% of your traffic will shift to IPv6 immediately
>> for every customer that has a IPv6 capable CPE device.  This is
>> *not* IPv6 going nowhere.
>>
>> The content providers are going IPv6-only internally translating
>> IPv4 to IPv6.
>>
>> If you ship CPE router make sure they are IPv6 capable.
>>
>> If you do not ship CPE routers provide a list of IPv6 capable routers
>> you are happy with.  IPv6 routers can be got for < $100 AUD.
>>
>> --
>> Mark Andrews, ISC
>> 1 Seymour St., Dundas Valley, NSW 2117, Australia
>> PHONE: +61 2 9871 4742                 INTERNET: marka at isc.org
>>
>> _______________________________________________
>> AusNOG mailing list
>> AusNOG at lists.ausnog.net
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>>
>>
>>
>>
>>
>> --
>>
>> Damien Gardner Jnr
>> VK2TDG. Dip EE. GradIEAust
>> rendrag at rendrag.net -  http://www.rendrag.net/
>> --
>> We rode on the winds of the rising storm,
>>  We ran to the sounds of thunder.
>> We danced among the lightning bolts,
>>  and tore the world asunder
>>
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>>
>
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