<div dir="ltr">I expect Robert is referring to T-mobile USA who do indeed only hand out IPv6 connectivity to customer devices.<div><br></div><div>They provide IPv4 access to customers 'as-a-service' however, via DNS64 and 464XLAT, so connectivity to legacy IPv4-only networks is not lost.</div><div><br></div><div>Sam.</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sun, 24 Feb 2019 at 13:59, Mark Smith <<a href="mailto:markzzzsmith@gmail.com">markzzzsmith@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="auto"><div><br><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sun., 24 Feb. 2019, 13:35 Robert Hudson, <<a href="mailto:hudrob@gmail.com" rel="noreferrer" target="_blank">hudrob@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="auto"><div><br><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sun, 24 Feb. 2019, 11:03 am Mark Smith, <<a href="mailto:markzzzsmith@gmail.com" rel="noreferrer noreferrer" target="_blank">markzzzsmith@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><br>
<br>
So an ISP supplied a router that only had IPv6 enabled? I doubt that<br>
has ever happened, but if it has, switching on IPv4 on the router<br>
isn't going to do anything because an "IPv6 only" ISP isn't going to<br>
provide IPv4 on the WAN side either.<br></blockquote></div></div><div dir="auto"><br></div><div dir="auto">There is at least one IPv6 only ISP in the USA I believe. </div></div></blockquote></div></div><div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto">So they don't provide any way of accessing the IPv4 Internet at all to their customers?</div><div dir="auto"><br></div><div dir="auto">I rejigged my network a while ago so that I have an IPv6 only CPE and an IPv4 only CPE. </div><div dir="auto"><br></div><div dir="auto">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.</div><div dir="auto"><br></div><div dir="auto">For example, on a PC with Fedora 29 and Chrome, I could access all of Google's services without any apparent issues.</div><div dir="auto"><br></div><div dir="auto">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.)</div><div dir="auto"><br></div><div dir="auto">Netflix worked fine from my phone to those Chromecasts.</div><div dir="auto"><br></div><div dir="auto">If I recall correctly, LinkedIn and Facebook also were fine.</div><div dir="auto"><br></div><div dir="auto">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.</div><div dir="auto"><br></div><div dir="auto">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.)</div><div dir="auto"><br></div><div dir="auto">If course other content was entirely unreachable because it was IPv4 only e.g. from memory Whirlpool.</div><div dir="auto"><br></div><div dir="auto">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.</div><div dir="auto"><br></div><div dir="auto">Regards,</div><div dir="auto">Mark.</div><div dir="auto"><br></div><div dir="auto"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
</blockquote></div></div></div>
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</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature">Sam Burney<br><br>Email: <a href="mailto:sburney@sifnt.net.au" target="_blank">sburney@sifnt.net.au</a><br>Phone: 0404 623 023</div>