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Comment by mgbmtl | Hacker News Reader

The per-country stats are interesting. US passed the 20% mark some time ago. Seems like some Canadian ISPs have started deploying IPv6 (other than beta), since it's now at 6% (it was around 1% for a long time). UK, Spain and Sweden are surprisingly low.

On the corporate side, it's annoying that Github, Twitter and OSUOSL (which hosts a lot of Free Software projects) still don't have IPv6 enabled (although I was told 2016-Q1 for OSUOSL).

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I heard a Dane say the Nordic ISPs had enough 'foresight' to hoard enough IPv4 addresses for the foreseeable future.

I worked for a New Zealand company that was getting into hosting and we couldn't buy IPv4 addresses at all. We were complete out. I think one of the team leads started looking at buying blocks from African companies.

Yes the major Swedish ISPs also say the same thing, except for the "foresight" part. One of our ISPs is even giving out "unlimited" public IPv4 addresses on their consumer subscriptions (previously they had a limit on 5 addresses, but now they have apparently removed the limit).

The ISPs even refuse to offer IPv6 when it comes to "big" customers, like apartment cooperatives with hundreds of apartments... You have to turn to the small/local ISPs for (consumer) IPv6 here.

Any way for someone outside of Scandinavia to purchase/rent some of these public IPv4 addresses?

VPS? Datacenter?

No, it's for consumer subscriptions only, and commercial use is prohibited. On the same ISP, commercial users have to pay depending on IP address block size and justify how they will use the addresses etc.

Hacker News ... no IPv6.

HN is hosted behind CloudFlare, too, so this should be as simple as flipping a switch...

I've no direct knowledge at all into this, but... for my own forums I found that most of the comment spam tools I was using presumed IPv4. This was especially true of "spam from same network" type logic that these tools were using.

For example only: Stop Forum Spam only recently began testing their work for IPv6: https://www.stopforumspam.com/forum/viewtopic.php?pid=44371

I re-wrote my comment spam solution (not specifically for the comment spam problem, was doing some other stuff) and have long since enabled IPv6, but it's worth bearing in mind that network is one thing, sometimes what holds someone back from flipping the switch are the tools we use.

CloudFlare does have a pretty compelling compatibility layer just for that purpose:

https://support.cloudflare.com/hc/en-us/articles/202494830-P...

Thanks for letting me know :)

Doing blacklisting of IPv6 addresses is actually quite hard, because you can't know how network owners lay out their addresses. Some networks (especially VPS providers) will use one /64 (or so) per datacenter, while other will give out a /64 for individual users.

So when 2001:db8:a1:b2::c:3 has sent spam to you, you can't know if you should block the network 2001:db8:a1:b2::/64 or the specific address 2001:db8:a1:b2::c:3. Some blacklists (carelessly) take the former approach and block entire datacenters.

Honestly, if an entire datacenter is using a single /64 it sounds like they are doing something wrong. It's as easy to get a /48 with 65k individual /64 (one for each customer) as it is to get a single /64

I can't speak for Spain and Sweden, but in the UK there are only two companies who provide internet infrastructure (though one is required to lease their network out to the market for competition reasons), as far as I'm aware they simply haven't deployed IPv6 for consumer lines yet.

This isn't actually the case: yes, OpenReach (part of the BT Group) owns all of the infrastructure from telephone exchange to the property as well as the initial infrastructure in the exchange, but that all supports IPv6, and OpenReach's customers (who are ISPs, not end users) are able to deploy IPv6 if they desire. It's the ISPs individual equipment (sometimes in the exchanges, but more often the routers they provide to customers) that doesn't support IPv6 and is blocking deployment: this is why some ISPs (A&A, for example) have IPv6 live.

Twitter? Try Amazon. EC2 is IPv4-only.

So are S3 buckets. That's one reason I stuck with my Linode instead of deploying my static websites via S3.

Why is that annoying?

Organizations/companies with more resources should lead the way (ex: Google/Youtube, Netflix, Facebook).

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