[AusNOG] 1Tb/s native ipv6 traffic on comcast

[Mark Andrews]

In message <CACnPsNUtDQAmO-mA_zgwUsMSk3J-xKyZvjX=zpowOcJ39w3Z4A at mail.gmail.com>
, Scott Howard writes:
> On Fri, Jul 25, 2014 at 7:54 AM, Scott Howard <scott at doc.net.au> wrote:
> 
> > And it's only going to get better - I use Comcast and in my area they are
> > pushing everyone to upgrade to DOCSIS 3.0, which will likely significant
> > increase the number of people with IPv6 capable CPE.
> >
> 
> I finally got around to upgrading my Comcast connection to a DOCSIS 3 modem
> last night (I'd previously been using a DOCSIS 2 version, and DOCSIS 2
> doesn't support IPv6). At the same time I set my ASUS router back to it's
> default setting of "Native" for IPv6 (it had previously been configured to
> tunnel to HE).

Some DOCSIS 2 modems support IPv6.  All DOCSIS 3 modems support
IPv6 on the management interface.  Not all DOCSIS 3 modems support
IPv6 on the customer side.  You can't just say "go buy a DOCSIS 3
modem", you have to say "buy a DOCSIS 3 modem from this set of
modems we support for IPv6".

> Without any other changes or configuration, the majority of the devices on
> my network picked up an IPv6 address and started using it.  Windows, Mac,
> Android (Phone + tablet) and Linux all "just worked".  The only two devices
> that didn't pickup an IPv6 address are my Sony Dash (long ago discontinued
> so not surprising) and, annoyingly, my Roku - which means that even though
> NetFlix supports IPv6, mine will still be over IPv4.

Yes, if the modem + CPE support IPv6, most of the other equiplment
in the home will just automatically use it.  XP needs it to be
enabled if you still have a XP box.  This has been the case for
many years now.

> Point is, if I was just a average Comcast user, with nothing but defaults
> settings on standard hardware, I'm now running IPv6 across most of my
> network without even realizing it, or without even knowing what IPv6 is!
> 
> So yes, I'd say 1Tbps of traffic is very, very believable!
> 
>   Scott
-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: marka at isc.org