My "conspiracy theory" is IPv6's point to point connectivity is inconvenient to anyone except end users. And, rent-seekers can't extract money if the ranges aren't limited. American mind can't comprehend not rent-seeking any new invention.
IPv4 "works" and ISPs are incredibly resistant to changing things that "work".
Because support is needed basically end to end, it's going to take an ungodly amount of time for ISPs to figure this stuff out.
It's pretty frustrating having all my hardware support v6 with the only barrier being my ISP who refuses to support it in my location (they support it in other locations).
I don't think so? Comcast is the largest ISP and fully supports IPv6, as does Spectrum and AT&T. All mobile carriers support IPv6, TMobile is IPv6-only. Starlink is IPv6 too.
>>> America has one of the highest IPv6 adoptions in the world.
>> Except for people. Specifically, wireline end users.
Triply so if they're on Fiber.
> I don't think so?
The US is a bit over 50%.¹ I'd attribute any recent growth to Verizon finally deploying IPv6 on FiOS (after 2 decades). But I think that's going to be it for growth. Every wireline ISP who was at-all willing to deploy IPv6 has.
The rest of them are effectively IPv6-Never-Evers. Our 1 cable ISP (spectrum) offers it. None of our fiber providers do (Frontier, WideOpenWest, T-Mobile, Optyx, Evolution). Given how new fiber deployments seem to be IPv6-adverse, I wouldn't be surprised to see a bit of contraction over the next year or so.
I've posted elsewhere here that I'd relentlessly bugged my provider to deploy their IPv6. They have a /40 allocated. Or had. They just ditched it. Which I guess was their way of telling me to stop asking.
Yes. For a while now. Actually to my detriment because TM hotspot users are usually IPv6 only. Which is a real issue for me. When I'm on a hotspot, my customers are unreachable to me. I can't VPN into them because 5 of 6 wireline ISP here are IPv4 only.
Are you trying to VPN directly to IP addresses instead of DNS names? Or using a custom DNS server? You should still have connectivity to IPv4 hosts, it's just that you need to translate the IPv4 addresses into their corresponding NAT64 IPv6 address (which is usually done for you by the T-Mobile DNS server)
I'm changing my response. After getting my hotspot to give me IPv6 only, I tried to duplicate what you expected to see. And to my surprise, I did.
When I queried DNS for IPv4-only sites, I got IPv4 and IPv6 addresses. As recently as last month, I would get an empty result for those same queries (no IPs at all).
After 2 years of off/on attempts, T-Mobile IPv6 is (for the first time) working for me as you describe.
> Are you trying to VPN directly to IP addresses instead of DNS names?
DNS resolved hostnames
> it's just that you need to translate the IPv4 addresses into their corresponding NAT64 IPv6 address (which is usually done for you by the T-Mobile DNS server)
[ed:Below is from memory, based on last month's results. It's from memory because when I 1st tested today, my hotspot gave me IPv4 (a thing it does ~30% of the time)]
TMobile's DNS servers give me an empty response to IPv4-only hostnames. When I'm in IPv6 only, there are a lot of sites I can't reach.
