[AusNOG] "However, for the best possible experience, we recommend enabling IPv6 on your network."

Sam Burney sburney at sifnt.net.au
Wed Feb 27 16:01:56 EST 2019


I expect Robert is referring to T-mobile USA who do indeed only hand out
IPv6 connectivity to customer devices.

They provide IPv4 access to customers 'as-a-service' however, via DNS64 and
464XLAT, so connectivity to legacy IPv4-only networks is not lost.

Sam.

On Sun, 24 Feb 2019 at 13:59, Mark Smith <markzzzsmith at gmail.com> wrote:

>
>
> On Sun., 24 Feb. 2019, 13:35 Robert Hudson, <hudrob at gmail.com> wrote:
>
>>
>>
>> On Sun, 24 Feb. 2019, 11:03 am Mark Smith, <markzzzsmith at gmail.com>
>> wrote:
>>
>>>
>>>
>>> So an ISP supplied a router that only had IPv6 enabled? I doubt that
>>> has ever happened, but if it has, switching on IPv4 on the router
>>> isn't going to do anything because an "IPv6 only" ISP isn't going to
>>> provide IPv4 on the WAN side either.
>>>
>>
>> There is at least one IPv6 only ISP in the USA I believe.
>>
>
>
> So they don't provide any way of accessing the IPv4 Internet at all to
> their customers?
>
> I rejigged my network a while ago so that I have an IPv6 only CPE and an
> IPv4 only CPE.
>
> Experimenting by switching off the IPv4 CPE, in some regards it's
> surprising what does work over pure IPv6, but on the other hand it is very
> limited, and not an experience you'd want to provide to a typical Internet
> end user.
>
> For example, on a PC with Fedora 29 and Chrome, I could access all of
> Google's services without any apparent issues.
>
> Rebooting Chromecasts caused them to announce their IPv6 addresses via
> multicast DNS rather than their IPv4 addresses (they don't advertise IPv6
> if IPv4 is available). However the YouTube app on my Android 9 phone
> refused to let me login to the YouTube website, so I couldn't play any
> videos to them. (I have Youtube Premium, I didn't go as far as trying to
> work out how access it without logging in at all on my phone.)
>
> Netflix worked fine from my phone to those Chromecasts.
>
> If I recall correctly, LinkedIn and Facebook also were fine.
>
> The Age worked, however adverts didn't show up. I expect the content
> showed up because it is on Akamai CDN nodes and they talk IPv6.
>
> It was a bit of muck around to see what it was like, I didn't go and
> reboot and test everything that could talk IPv6. (I don't think I tested my
> Chromebook for example.)
>
> If course other content was entirely unreachable because it was IPv4 only
> e.g. from memory Whirlpool.
>
> So I'm sceptical that any ISP would provide a pure IPv6 only, no IPv4 at
> all service to somebody who'd likely be playing a game written by Ubisoft.
>
> Regards,
> Mark.
>
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> AusNOG at lists.ausnog.net
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>


-- 
Sam Burney

Email: sburney at sifnt.net.au
Phone: 0404 623 023
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