Google has some interesting stats on per-country IPv6 adoption here:��https://www.google.com/intl/en/ipv6/statistics.html#tab=per-country-ipv6-adoption

Note that their measurements show a significant impact on latency and error rate for IPv6 in NZ.

Also interesting to see the US adoption rate - 11.75% was much higher than I expected, and puts our 0.62% to shame.

I'm pleased that Snap has IPv6 working again, but I will still be putting together some info on IPv6 availability across NZ ISPs. A little summer project I guess. I'll try and get a reasonable sample of ISPs together, and then hopefully we can keep it up to date as more ISPs enable IPv6 for consumers.

On Fri, Dec 19, 2014 at 8:13 AM, Sam Russell <sam.h.russell@gmail.com> wrote:
I saw a lot of retransmits on TCP streams over IPv6, and wireshark was
showing weird stuff in the ether header... but only on the wired
ports, as wireless worked fine. I may have a pcap lying around if
you're interested, although I almost guarantee once I share it you'll
see that I've been looking at a red herring and completely missed the
real problem!

tl;dr it seems to be an issue with the wired ethernet ports on the CPE
rather than anything in the core

On 19 December 2014 at 08:06, Brian E Carpenter
<brian.e.carpenter@gmail.com> wrote:
> On 19/12/2014 07:29, Sam Russell wrote:
>>> If we're all talking about the same ISP (SNAP, who I have good things to say about in general), there are a number of geekzone threads about IPv6 problems with their fritzbox modems that they've been issuing.
>>
>> I've recently turned off IPv6 at home as I was getting frequent packet
>> errors that meant anything IPv6 enabled (google) took an age to load
>> and often timed out, and completely broke windows updates.
>
> What exactly do you mean by "packet errors"? I've seen no such problems
> and (until they brutally switched it off) I've had equal or better
> performance with IPv6. It's very frustrating that the ISP won't give
> a proper explanation, because such problems need to be exposed,
> understood and fixed.
>
>�� �� Brian
>
>>
>> On 18 December 2014 at 12:20, Joel van Velden <joel@tpnz.co.nz> wrote:
>>> If we're all talking about the same ISP (SNAP, who I have good things to say
>>> about in general), there are a number of geekzone threads about IPv6
>>> problems with their fritzbox modems that they've been issuing.
>>>
>>> Possibly they decided it was all too much effort and gave up.
>>>
>>> Having more customers on IPv6 (presumably) means more customers bypassing
>>> local on-net CDN's for content too. Does Akamai support IPv6 for all
>>> content?
>>>
>>> Until such time that all network operators consider IPv6 not-as-important as
>>> IPv4, what's the point of using it? Moving to dual-stack IPv6 (I cant, SNAP
>>> wouldn't give me a static IPv6 on static IPv4 anyway) means getting
>>> sub-optimal routing (path's and CDN end-points), as well as router quirks,
>>> etc.
>>>
>>> Perhaps if Truenet added IPv6 metrics to their ISP testing suite, this might
>>> push some ISP's into caring more.
>>>
>>> There is no NZ ISP that fully supports IPv6 on DSL/UFB that I am aware of.
>>>
>>> Regards,
>>> Joel van Velden
>>>
>>>
>>> On 2014-12-18 11:13, Brian E Carpenter wrote:
>>>>
>>>> Well, I've been waiting for an explanation of the following statement from
>>>> their help desk, but since they have gone silent on me, I wonder if
>>>> anyne here can make sense of the following:
>>>>
>>>>> Due to ongoing issues
>>>>> reported by customers in relation to IPv4 to IPv6 Translation around the
>>>>> country
>>>>> and a handful of international sites we have made the decision to disable
>>>>> the
>>>>> service on our network temporarily.
>>>>
>>>>
>>>> I mean, in which universe can such issues be mitigated, or even affected
>>>> in
>>>> any way, by switching off native IPv6 support?
>>>>
>>>> Regards
>>>>�� �� Brian
>>>>
>>>>
>>>>
>>>> On 14/12/2014 12:55, Lindsay Hill wrote:
>>>>>
>>>>> I chose this particular ISP specifically because they offered IPv6 IA_PD
>>>>> by
>>>>> default to all customers. Since they're no longer able to do this, I need
>>>>> to re-evaluate my choice of ISP.
>>>>>
>>>>> But who else offers dual-stack by default in NZ? I haven't found any good
>>>>> source of information that outlines what the various ISPs offer.
>>>>> ipv6.org.nz
>>>>> hasn't been updated for a while.
>>>>>
>>>>> There's a couple of providers that still seem to be running 'trials' -
>>>>> but
>>>>> those pages haven't been updated in years. That doesn't exactly fill me
>>>>> with confidence. Does that mean it could be switched off for an extended
>>>>> period, like the situation here?
>>>>>
>>>>> I guess I need to go and ring around all the different ISPs, and put
>>>>> together my own table, showing current state. Unless someone else has
>>>>> some
>>>>> up to date information?
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> NZNOG mailing list
>>>>> NZNOG@list.waikato.ac.nz
>>>>> http://list.waikato.ac.nz/mailman/listinfo/nznog
>>>>
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