The IPv4 Exhaustion Wormhole

I’m starting to wonder if IPv4 exhaustion has opened a wormhole plunging us all back to 2008 again. Australian researchers have begun collating information from networks across the world in an attempt to figure out how many usable blocks of Internet Protocol version 4 (IPv4) addresses remain unused. This would have been a good wake-up call project in 2008.  The study had already verified a couple of hundred million IP … Continue reading

IPv6 Meets the 800-Pound Gorillas

What do 800-pound gorillas do? Whatever they damn well please. The last few days I’ve been puzzling over how on earth the Internet Society (ISOC) achieved what it’s done for IPv6 in the last two years. Internet Society? They’re the do-gooders who ‘strive to make the world a better place’ by connecting and collaborating and advocating that the Internet is for everyone. Bunch of tragic hippies – right? Well, no. … Continue reading

IPv6 Growth Goes Exponential

We’ve all heard of the the exponential growth of the Internet. It’s been one of the fastest adopted technologies the world has ever seen. Here’s a plot of the numbers of Internet users globally over time. Currently the total doubles roughly every five years or so, e.g. one billion users in 2006, two billion in 2011. (Internet World Stats.) Given the percentage of IPv6 users is only about 0.7% – … Continue reading

IPv6 ULA – what and how?

ULA (Unique Local Addresses, or Unique Local IPv6 Unicast Addresses to give them their full name) are IPv6’s equivalent of IPv4’s “private” addresses. The idea is to append a random 40 bits to the reserved ULA prefix fd00::/8, thus building a /48 that you can call your own. You can use this /48 wherever and however you like, with the sole proviso that it must not be routed on the … Continue reading

Who Is Using IPv6? Part II

I’ve had some helpful feedback on the post Who Is Using IPv6?. One of the Google IPv6 researchers, Erik Kline, pointed out “from 2008 onward, the single largest deployment of IPv6 in the world was Free Telecom in France. I think part of the dip may also align with the yearly July/August French migration to vacation destinations.” Yes, I did wonder whether the IPv6 usage dip was due to workers … Continue reading

IPv6 & Business – Any Connection?

What does business have to do with IPv6 – isn’t IPv6 just a technical protocol upgrade? Isn’t the only reason to implement IPv6 the impending IPv4 exhaustion issue? Well not in my book! If IPv6 is just a technical upgrade – without any benefit to a business – then, to the manager of that business, IPv6 is just a cost without a benefit. Why would any manager approve implementing such an … Continue reading

Who Is Using IPv6?

Short answer: I think it’s students. Here’s why. Google has a great graph of IPv6 usage at,* currently measuring about 0.74% IPv6 usage – a woefully small percentage, about 3 IPv6 users per 400 IPv4 users. Below is a screenshot for 15 July. Ignore the red and blue lines and just look at the green one, native IPv6 – clearly now the preferred form of IPv6 connectivity. See the … Continue reading

Six Now, Not Sex Now, Really

Recently we revised the IPv6Now site. I’d noticed that non-tech people often stumbled when faced with the term IPv6. They’d say something like ip (as in trip) ver six, and then stop in confusion. Not a good thing. So I thought of simplifying the name – perhaps we could get or (That ‘0’ should be an ‘o’ but I’ve replaced it, so some readers will not be blocked … Continue reading

The Pirate Bay Goes IPv6

The Pirate Bay is the world’s most popular peer-to-peer file-sharing site, for people to upload and download just about anything, which, understandably, makes the big copyright organisations bitter. They’ve tried, especially in Europe, to use court orders to force ISPs to block Pirate Bay DNS entries or IP addresses, one by one: that is, IPv4 addresses. A week ago Pirate Bay announced it was now accessible via an IPv6 address, … Continue reading