The twilight of /8s

A “/8” is a block of 16,777,214 usable IP addresses. That’s a big fraction of the entire IPv4 address space – about 1/224, in fact. Each one is all the addresses that begin with a given number: 10.0.0.0/8 is all the IP addresses that begin with “10.”, “184.0.0.0/8” (or “184/8” for short) is all the IP addresses that begin with “184.” and so on.
How are they used? You can see in this map of the entire IPv4 Internet as of 2006.
For the IPv6 map just imagine the XP default desktop picture.
In the early days of the Internet /8s were given out directly to large organizations. If you look near the middle-top of the map, just left of “MULTICAST” and above “DISA” you can see “MIT”.
The Massachusetts Institute of Technology got into the Internet game pretty early. This is the first map I have where they appear, in June 1970:

The Laboratory for Computer Science at MIT were assigned the 18.0.0.0/8 block sometime around 1977, according to RFC 739, though it looks like they may have been using it since at least 1976.
By 1983 (RFC 820) it belonged to the whole of MIT, rather just the CS Lab, though you have to wonder how long term that was supposed to be, given the block was named “MIT-TEMP” by 1983 (RFC 870). According to @fanf (who you should follow) it was still described as temporary until at least the 1990s.
But no longer. MIT is upgrading much of their network to IPv6, and they’ve found that fourteen million of their sixteen million addresses haven’t been used, so they’re consolidating their use and selling off eight million of them, half of their /8. Thanks, MIT.
Who else is still sitting on /8s? The military, mostly US, have 13. US Tech companies have 5. Telcos have 4. Ford and Daimler have one each. The US Post Office, Prudential Securities, and Societe Internationale de Telecommunications Aeronautiques each have one too.
One is set aside for use by amateur radio.
And two belong to you.
10.0.0.0/8 is set aside by RFC 1918 for private use, so you can use it – along with 192.168.0.0/16 and 172.160.0.0/12 – on your home network or behind your corporate NAT.
And the whole of 127.0.0.0/8 is set aside for the local address of your computer. You might use 127.0.0.1 most of the time for that, but there are 16,777,213 other addresses you could use instead if you want some variety. Go on, treat yourself, they’re all assigned to you.

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SHOUTY CAPS!!!

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Who didn't invent email?

Who didn’t invent email? Shiva Ayyadurai.
He’s not the only one – I didn’t invent email either, nor did Abraham Lincoln, Boadicea or Tim Berners-Lee. So why mention Shiva?
He claims that in 1978 when he was 14, he took some courses in programming. His mum worked for the University of Medicine and Dentistry of New Jersey, and one of her colleagues challenged him to write an electronic mail system. And he did just that, creating a basic messaging system in FORTRAN, based on the existing paper memo format, ending up with a non-networked electronic mail system with similar functionality to mainstream applications that were in use well over a decade earlier.
That’s pretty impressive, and is the sort of thing that’ll look good on a college application form. (When I was 13 I designed and implemented a chassis dynamometer management unit that Shell’s research division used to test fuel and lube oil performance over virtual driving tracks – dozens of pages of 6502 assembly code, and you can be sure I put that on my college application form).
Some years later, in 1982, Shiva applied for and was granted a certificate of copyright registration on that piece of software. A copyright is not a patent – it recognizes and protects the expression of the work, not the idea underlying the work. There’s no real bar for copyright, other than it being a piece of work you created yourself – I automatically own copyright to anything I create, including software I’ve written and this blog post. Registering a copyright on a work, whether it be software or anything else, is a trivial exercise in bureaucracy – you fill in a form, you pay a registration fee, it gets rubber stamped. What is protected by the copyright is the work – in this case the software source code – itself, not the ideas, not the name of the package, nothing else. (I have copyright on my software package, Abacus. That doesn’t mean that I invented the Abacus.)
Meanwhile, Shiva moved into email marketing, founded a small ESP, and seems to be doing quite nicely (although a journalist who looked can’t find much evidence of the ESP being successful, or even existing, other than a lawsuit it filed against IBM and American Express for misappropriation of trade secrets in 2005).
Back in 2011, though, things started to get weird. Shiva started to use this copyright filing, and the fact that he used the title “EMAIL” on the filing, to support a claim that he was “the inventor of email”. It’s a compelling human interest / tech story to journalists whose knowledge of email and internet history is vague, so it got quite a bit of coverage.
(Shiva makes an image of his copyright certificate available: http://www.vashiva.com/images/vashiva_patent3_enl.jpg. Note that the URL describes it as a “patent”, rather than a copyright filing.)
It was quickly debunked. It didn’t pass the sniff test. Technical blogs started asking how the Washington Post and other press had fallen for this. The Washington Post clarified that pretty much all the significant claims in the original article were untrue.
It didn’t go away, though. Two-and-a-half years later, there’s a series of articles in the Huffington Post, pitching the same story, this time with a few unpleasant twists in it’s approach. It’s got a glossy infographic, filled with provably false claims. It has the feel of a professional PR campaign, rather than an article written by a reporter. Sure enough, it’s written by Larry Weber, a high powered PR guy (CEO of RacepointGlobal – who “build the right influencer relationships for your brand” – and CEO of Weber Public Relations Worldwide). There are at least five article in the series, all written by different people, but having oddly similar phrasing.
Shiva’s ESP, EchoMail, and their current branding is based around his (false) claim to be the “Inventor of Email”, so there’s clearly money as well as ego at stake. Neither Larry Weber nor the Huffington Post mentioned that Larry Weber is also on the board of EchoMail.
So we’re going through the debunking process again. I was going to write more, but others are way ahead of me.
 

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thirty.years.com

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Symbolics made lisp machines – symbolics.com is now owned by a domain speculator.
BBN is a technology R&D company who’ve worked on everything. If I had to pick one thing they were involved with it’d be the Internet Message Processor – the router used on the very first Internet nodes. They are still around, as a division of Raytheon.
Think.com made some amazing massively parallel computers. Their hardware group was bought out by Sun, who were bought out by Oracle and think.com now redirects to a broken error page at oracle.com.
Mcc.com were the first – and for a while, the largest – computing research and development consortium in the US. They did groundbreaking work on everything from silicon to AI. Their domain is now a generic parked page owned by a domain speculator.
Dec.com were Digital Equipment Corporation – creators of the PDP, VAX, Alpha and StrongARM processors, amongst many other things. They were a huge company when I worked for them designing Alpha CPUs in the mid 90s, then they were acquired by Compaq, then HP, then split up. Their domain is now a personal website.
It took nearly three years to reach 100 registered .com domains and nearly 10 years to reach 9,000.
As of this morning there are 116,621,517 domains registered in .com, from (64 zeros).com to (64 letter z).com, out of a possible total of more than two googol – so there’s still a domain there for you.
221,848 of those domains in .com mention “mail”.

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