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More than 1/3 of all access to Google is now over IPv6

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Re: More than 1/3 of all access to Google is now over IPv6

#61

Earlier quoted context omitted.

Google is blocked in China. So I guess not a lot of traffic is coming from Chinese IPs.

Google has a lot of services and landing pages though, is everything completely blocked?

No.

Re: More than 1/3 of all access to Google is now over IPv6

#62

China is aiming for 100% in 2025 according to APNIC, so they've got some ways to go from the 0.53% seen by Google. Is the great firewall ipv4 only perhaps?

I used to live in China a few years ago, and my 4G devices always had IPv6 addresses, as well as my home connections on the two ISPs I used.

Re: More than 1/3 of all access to Google is now over IPv6

#63

My ISP supports IPv6, and while I can understand why a large organisation would want to use it (especially given the increasing cost and scarcity of IPv4 blocks), I'm still yet to be persuaded of its benefits for home users. I admit that I only have a very cursory understanding of how it works, and perhaps I'm just stuck in my ways, but the scale and complexity seems so extreme compared to IPv4, with no compensating…

The advantage of ipv6 for consumers is that many ISPs (especially non american ISPs) don't and can't hand out public IPv4 addresses, due to the lack of remaining IPv4 addresses for them to allocate. The choice isn't between every device being globally routable (which is easily solved by a firewall WITHOUT NAT) and a single routable address, the choice is between zero public routable addresses, and as many as you need…

[The parent edited their post to render my comment wrong]

Re: More than 1/3 of all access to Google is now over IPv6

#64
post #13
post #8

The graph is interesting when you zoom in, much more IPv6 use over the holiday period and also recently during the period of lockdown measures. I would guess the majority of IPv6 traffic comes from devices on 4G networks. More devices are on 4G when visiting family and friends over the Christmas period and when working remotely.

It's not just 4G. It's consumer networking in general, which isn't held back by legacy enterprise networking equipment. When your residential ISP turns on IPv6 for their network, they also tend to turn on IPv6 for the modem+router combo devices they lease to run your LAN. Or if you're the kind of power user that buys your own router, it's almost certainly new enough to support IPv6.

Just checked. Mine does support it. Should I turn it on?

Re: More than 1/3 of all access to Google is now over IPv6

#65
post #6

Earlier quoted context omitted.

IPv6 still has NAT. There's public and private IPv6 addresses, same as IPv4. Google building their infrastructure around IPv6 does not have anything with tracking IPv6 users

IPv6 doesn't have NAT, it has different addresses for global and local scopes, but your OS never translates between these addresses and it doesn't need to keep a table of translations & connections, as you'd have with IPv4 and NAT.

> IPv6 doesn't have NAT

This is widely believed, but it's false. There is nothing whatsoever stopping you doing NAT with IPv6, even though you probably don't need to.

Re: More than 1/3 of all access to Google is now over IPv6

#66
post #13
post #8

The graph is interesting when you zoom in, much more IPv6 use over the holiday period and also recently during the period of lockdown measures. I would guess the majority of IPv6 traffic comes from devices on 4G networks. More devices are on 4G when visiting family and friends over the Christmas period and when working remotely.

It's not just 4G. It's consumer networking in general, which isn't held back by legacy enterprise networking equipment. When your residential ISP turns on IPv6 for their network, they also tend to turn on IPv6 for the modem+router combo devices they lease to run your LAN. Or if you're the kind of power user that buys your own router, it's almost certainly new enough to support IPv6.

Does IPv6 on an internal network offer any benefit to enterprises (not talking about ISPs here), who may view NAT as a form of defence in depth?

Re: More than 1/3 of all access to Google is now over IPv6

#67

Earlier quoted context omitted.

The advantage of ipv6 for consumers is that many ISPs (especially non american ISPs) don't and can't hand out public IPv4 addresses, due to the lack of remaining IPv4 addresses for them to allocate. The choice isn't between every device being globally routable (which is easily solved by a firewall WITHOUT NAT) and a single routable address, the choice is between zero public routable addresses, and as many as you need…

[The parent edited their post to render my comment wrong]

I also have a non American ISP, and they will not give me a public IPv4 address, for any amount of money.

Re: More than 1/3 of all access to Google is now over IPv6

#68
post #2

Why are is there such a difference between countries?

Could be ISP adoption. Some ISPs have been more progressive in ipv6 than others.

I think it's often out of necessity, when you have rapidly increasing numbers of devices (smartphones, IoT) and a large population. This could explain why IPv6 deployment is widespread in Asia. At some point maintaining huge CG-NAT deployments gets more expensive than implementing IPv6...

Re: More than 1/3 of all access to Google is now over IPv6

#69

Earlier quoted context omitted.

The advantage of ipv6 for consumers is that many ISPs (especially non american ISPs) don't and can't hand out public IPv4 addresses, due to the lack of remaining IPv4 addresses for them to allocate. The choice isn't between every device being globally routable (which is easily solved by a firewall WITHOUT NAT) and a single routable address, the choice is between zero public routable addresses, and as many as you need…

[The parent edited their post to render my comment wrong]

He didn't say "all", he said "many". And that is factually right. Many ISPs use DSLite/CGNAT and don't hand out public IPv4 addresses to their customers anymore. Yes, some offer the option to change to a public IPv4, some charge extra money for this feature, and some don't offer it at all!

E.g. my ISP doesn't hand out public IPv4 and you can't order it, unless you change to a business contract. However, my ISP is doing some weird 1:1-NAT, so while I don't get assigned a public IPv4 to my router, I do get assigned a single IPv4 on the CGNAT router that also translates back to my home network.

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