Thank you for taking the time to explain. Let me try to word things a little better:
What is the percentage of US homes who are on an IPv6?
What is the percentage of websites on IPv6?
What are the number of web site hits that are IPv6 to IPv6? (in the US? in the world?)
The highest estimate I've ever seen for any of these is less than 20%, which - 20 years into IPv6, is in my opinion "not caught on". The mobile world when 3G arrived preferred carrier-grade-NAT to IPv6 (which was technically a better solution), which is in my opinion "not caught on".
Suffix randomization has been implemented, but is not universal in my experience; and it is essentially useless for privacy in one's home. It slightly blurs the distinction between my laptop and my son's iPad. And that's ALL it does.
Right now I enjoy getting an address from a pool of 16K addresses every time I reset my cable modem; And it is likely to transition soon to a carrier-grade NAT which would give me even more privacy.
It is likely that I should be taking crazy pills - I seem to remember the snowdens of yesteryear and facebook shadow profiles, which either I'm hallucinating or no one else seems to care about.
On the other hand, I have a startup idea to profit from the impending v6-complete-lack-of-privacy that I should probably start working on. If you can't beat them, profit off them.
Google puts global native IPv6 adoption among their users (i.e. proportion of incoming connections that are IPv6) at 17%-ish and exponentially/logistically increasing; the US numbers are much higher, at around 35% [https://www.google.com/intl/en/ipv6/statistics.html#tab=per-...]. These numbers do not distinguish between mobile and fixed clients; I suspect that mobile deployment is higher than residential.
The server-side IPv6 adoption is not so great; see [http://www.delong.com/ipv6_alexa500.html] for deployment numbers. Luckily, most ISPs providing IPv6 (or at least, my personal one) provide a carrier-grade NAT64 gateway to allow access to IPv4 services from IPv6-only clients.
By web site hits, I have no idea - I don't know where to find those numbers.
IPv6 suffix randomization is enabled by default on Windows, OSX, and iOS. For Android, it probably varies (like everything else) by vendor, but my personal Android phone is using a random suffix. What are the machines you're using that aren't doing this?
Yes, suffix randomization doesn't hide which home connection you're on; but neither did old-school IPv4 + NAT. Sure, IPv6 didn't add that feature, but that's enough of a performance killer that it should be relegated to a separate system like TOR. The IPv6 prefix you are assigned by your carrier is a feature of whatever DHCPv6 setup they have; if they're assigning you the same prefix for every time you power-cycle your modem on IPv6 and they were not doing so with DHCPv4, that's super weird.
> IPv6 suffix randomization is enabled by default on Windows, OSX, and iOS. For Android, it probably varies (like everything else) by vendor, but my personal Android phone is using a random suffix. What are the machines you're using that aren't doing this?
I think it was Win7 last I tested it, probably an early service pack; according to https://superuser.com/questions/243669/how-to-avoid-exposing... it should already have had privacy addressing, but perhaps it was somehow turned off on the machine I tested (or perhaps my expectation that it would change on reboot was wrong?).
> The IPv6 prefix you are assigned by your carrier is a feature of whatever DHCPv6 setup they have; if they're assigning you the same prefix for every time you power-cycle your modem on IPv6 and they were not doing so with DHCPv4, that's super weird.
They were allocating from a pool on DHCPv4, where reservations were for a few hours (so immediate power cycle would get same address, but if you wait a couple of hours or release and request, you'd get a new one). They are not using DHCPv6 in the same way - they assign a prefix-per-customer. That was the case with all the local IPv6 carriers I inquired with. I guess it means that the prefix is /56 or even /60 - I didn't even ask.
You are technically correct, the best kind of correct. It is possible that my sampling bias is giving me a distorted view of where the world is going, but:
All local ISPs I've asked, don't give out the same IPv4 (they all charge for a fixed IP, so no guarantee you'll get the same one unless you pay; at least 3 out of the 6 actively change your IP whenever they can, to force you to pay even if you need fixed IPs for short times).
All local ISPs I've asked provide the same IPv6 prefix to a customer.
I assumed that was common practice - at the very least, more common than the other way around (fixed IPv4 when you didn't ask for it, random IPv6)
Quite likely that it varies a lot between markets, true. From what I've seen, cable providers often give you a "static" IP (I think often tied to the modems hardware ID?). ADSL providers here in Germany did commonly reset your connection and IP every 24 hours (or on manual reconnect). From what I hear not all of them do that anymore, but e.g. Deutsche Telekom seems to change IPv6 as well (probably since you're supposed to pay for business class if you want static).
And some run the connection as IPv6 only and then CG-NAT IPv4, which of course gives you a random IP again, but is even worse for P2P applications and means you can't use DynDNS etc anymore.
My personal connection has had the same IP for the past 5 years, and I think changing it would mean asking my ISP and coming up with an answer for why I need that.
What is the percentage of US homes who are on an IPv6?
What is the percentage of websites on IPv6?
What are the number of web site hits that are IPv6 to IPv6? (in the US? in the world?)
The highest estimate I've ever seen for any of these is less than 20%, which - 20 years into IPv6, is in my opinion "not caught on". The mobile world when 3G arrived preferred carrier-grade-NAT to IPv6 (which was technically a better solution), which is in my opinion "not caught on".
Suffix randomization has been implemented, but is not universal in my experience; and it is essentially useless for privacy in one's home. It slightly blurs the distinction between my laptop and my son's iPad. And that's ALL it does.
Right now I enjoy getting an address from a pool of 16K addresses every time I reset my cable modem; And it is likely to transition soon to a carrier-grade NAT which would give me even more privacy.
It is likely that I should be taking crazy pills - I seem to remember the snowdens of yesteryear and facebook shadow profiles, which either I'm hallucinating or no one else seems to care about.
On the other hand, I have a startup idea to profit from the impending v6-complete-lack-of-privacy that I should probably start working on. If you can't beat them, profit off them.