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IPv6 Adoption Statistics

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Re: IPv6 Adoption Statistics

#62
post #24

After I switched ISP to one that supports native IPv6 (and generally is pure awesome), I noticed that my traffic at home went to about 50% IPv6, also thanks to YouTube supporting V6. I also casually noticed that all but one address in my "Account Activity" view in Gmail are IPv6 addresses (ironically, the mobile phone got the one single IPv4 address in that list over 4G). V6 works nicely and totally transparent causi…

"One thing that's tricky about V6 is the fact that without NAT all your boxes are internet-reachable unless you have a firewall."

Maybe OSes will need to stop assuming their underbellies can be soft and implement some real host security.

Naaahhh... hell will freeze over first.

Re: IPv6 Adoption Statistics

#63
I've been trying on and off to get IPv6 working at home, but the problem I keep running into is poor performance from tunnels. I have service via Wide Open West which is great for IPv4, but they have no plans to support IPv6. So, I try using a tunnel...

Both HE.net and SixXS are so incredibly slow that I get >1 second pings to something which is 30ms away via IPv4. The tunnel end point is only ~50ms away, so I can only see the latency as being within the tunnel provider...

I really, really wish that I had a native IPv6 connection at home, but I don't want to switch to Comcast, which is the only IPv6 option for me.

Re: IPv6 Adoption Statistics

#65
post #59

Doesn't IPv6 also mean the permanent death of privacy? Think about it. IPv6 kills all the stupid NAT schemes IPv4 required. Everyone gets a permanent static IP address. Your browser delivers it to every site you visit. It's the ultimate permanent cookie. Of course Google is so happy for this.

No, you don't get a permanent static IP address. That depends on the ISP. And even if your ISP hands out permanent addresses, your devices can change addresses often. Most of my devices do change addresses, and I didn't have to turn it on. Both v6 and the linux stack are privacy-friendly.

> Both v6 and the linux stack are privacy-friendly.

Yes and no.

The privacy extensions will create new addresses, but they will always belong to the same /64. To my knowledge, TWC will allocate a /64, but there's no guarantee that power cycling your modem will generate a new /64[0]. I believe other ISPs work the same way - they may give you a new /64, but they're not required to and don't guarantee it in the SLA. And most people won't power cycle their modems often anyway, which means they could have the same /64 for months on end.

If we're talking about online tracking, it's very easy for trackers to just throw their hands up and treat all addresses within a /64 as if they represent a single user + device. This isn't completely accurate, but it's no less accurate than IP address tracking with IPv4.

Furthermore, I am unaware of any reliable commercial VPN providers that currently provide IPv6 connections (at least over OpenVPN[1]), so if you have dual-stack connectivity, your IPv6 connection can compromise your privacy even for your IPv4 connection[2].

[0] Technically this is true for ipv4 as well, but due to the relative scarcity of addresses you're less likely to get a pseudo-static ipv4 address.

[1] OpenVPN now supports IPv6 clients, though I don't know of any actual deployments of this. PPTP is IPv4-only.

[2] I think this blog post is sadly still accurate: https://blog.dave.io/2011/06/vpn-ipv6-privacy/

Re: IPv6 Adoption Statistics

#66

I've been trying on and off to get IPv6 working at home, but the problem I keep running into is poor performance from tunnels. I have service via Wide Open West which is great for IPv4, but they have no plans to support IPv6. So, I try using a tunnel... Both HE.net and SixXS are so incredibly slow that I get >1 second pings to something which is 30ms away via IPv4. The tunnel end point is only ~50ms away, so I can on…

Shoot an email to HE. Their support for this free service is better than most commercial support teams I've interacted with.

Also, don't discount that it's possible that the other end of the equation, the server you are trying to reach, has poor IPv6 connectivity. Fire up a Digital Ocean instance for an hour (it'll cost you $0.10) and see if the site is slow from everywhere.

I've been using HE.net's tunnels for a good long while now and they've been great for me.

Re: IPv6 Adoption Statistics

#67
post #35
post #24

After I switched ISP to one that supports native IPv6 (and generally is pure awesome), I noticed that my traffic at home went to about 50% IPv6, also thanks to YouTube supporting V6. I also casually noticed that all but one address in my "Account Activity" view in Gmail are IPv6 addresses (ironically, the mobile phone got the one single IPv4 address in that list over 4G). V6 works nicely and totally transparent causi…

> One thing that's tricky about V6 is the fact that without NAT all your boxes are internet-reachable unless you have a firewall. That's easily added of course, but whereas we have protocols like upnp and nat-pmp to reconfigure NAT routers, there's nothing equivalent for various applications to tell the router to forward some V6 traffic. Is there any reason the same approach shouldn't work? All the application needs…

All you need is a firewall. NAT is not a security feature: it just has security implications. In IPv4 land, it's the firewall that does all the port forwarding, etc. anyways.

If you are running IPv6, get a nice OpenWRT router, where the firewall is enabled by default.

Re: IPv6 Adoption Statistics

#68

I've been trying on and off to get IPv6 working at home, but the problem I keep running into is poor performance from tunnels. I have service via Wide Open West which is great for IPv4, but they have no plans to support IPv6. So, I try using a tunnel... Both HE.net and SixXS are so incredibly slow that I get >1 second pings to something which is 30ms away via IPv4. The tunnel end point is only ~50ms away, so I can on…

Shoot an email to HE. Their support for this free service is better than most commercial support teams I've interacted with. Also, don't discount that it's possible that the other end of the equation, the server you are trying to reach, has poor IPv6 connectivity. Fire up a Digital Ocean instance for an hour (it'll cost you $0.10) and see if the site is slow from everywhere. I've been using HE.net's tunnels for a goo…

Unfortunately, it's anything that's slow... When I've got a tunnel live, Google properties and Facebook are pretty much unusable. Weirdly, sometimes it'll work fine... Other times it won't. (The server I'm testing against with is my personal site, https://nuxx.net, which has great IPv6 connectivity already. I just don't want to tunnel my home connection through it because that'll seriously push up the bandwidth use of the hosted server.)

There's two things that I haven't taken the time to rule out yet: my router potentially being problematic (it's an Apple Airport that otherwise works well) and the ISP slowing down tunneled traffic. The former would require setting up a new router, and the latter... I'm not sure how I'd do that yet. IPv6 connectivity had been working fine until a month or two ago when things just went weird.

Good thought on sending HE a message... I'll do that later today. Maybe there's something they've run into before with this combo. When their tunnel was up and working great it was surprisingly nice.

Re: IPv6 Adoption Statistics

#69
post #59

Earlier quoted context omitted.

No, you don't get a permanent static IP address. That depends on the ISP. And even if your ISP hands out permanent addresses, your devices can change addresses often. Most of my devices do change addresses, and I didn't have to turn it on. Both v6 and the linux stack are privacy-friendly.

> Both v6 and the linux stack are privacy-friendly. Yes and no. The privacy extensions will create new addresses, but they will always belong to the same /64. To my knowledge, TWC will allocate a /64, but there's no guarantee that power cycling your modem will generate a new /64[0]. I believe other ISPs work the same way - they may give you a new /64, but they're not required to and don't guarantee it in the SLA. And…

Well, I have two consumer DSL connections at home from different ISPs with completely independent infrastructure (a few billable hours pays for a year's redundancy). Both of them behave give me new, unpredictable v6 prefixes via DHCP every 2h/1d.

So obviously not all other ISPs work the way yours does.

Re: IPv6 Adoption Statistics

#70

Earlier quoted context omitted.

Shoot an email to HE. Their support for this free service is better than most commercial support teams I've interacted with. Also, don't discount that it's possible that the other end of the equation, the server you are trying to reach, has poor IPv6 connectivity. Fire up a Digital Ocean instance for an hour (it'll cost you $0.10) and see if the site is slow from everywhere. I've been using HE.net's tunnels for a goo…

Unfortunately, it's anything that's slow... When I've got a tunnel live, Google properties and Facebook are pretty much unusable. Weirdly, sometimes it'll work fine... Other times it won't. (The server I'm testing against with is my personal site, https://nuxx.net , which has great IPv6 connectivity already. I just don't want to tunnel my home connection through it because that'll seriously push up the bandwidth use…

You could try glasnost: http://broadband.mpi-sws.org/transparency/glasnost.php

It probably won't help you with your specific tunnel, but you can check other traffic to see if there's any filtering occurring. It seems unlikely they'd ONLY throttle ipv6 tunnel traffic.

Also, the other thing I ran into with he.net tunnel was a problem with pmtu discovery. I had to manually set the mtu/mss on my router (pfsense). I have no idea if the airport will even let you.

https://forums.he.net/index.php?topic=3028.0

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