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Hoi, ik ben Iljitsch van Beijnum. Op deze pagina staan alle posts over alle onderwerpen.

Time to turn off IPv4 (just a little)

Another month, and we'll be living in the 2020s. And yet, 70% of the internet is still IPv4-only. (I'll be writing a story looking back on IPv6 progress the past decade in January.) So I thought: maybe I should draw a line in the sand and turn off IPv4 for my website. But then how will those 70% find me, and all the links to older content will be dead to much of the internet. Click below to continue reading.

Note: this is an example of the warning image, your IPv6 connectivity may be fine!

Full article / permalink - posted 2019-12-03 - 🇳🇱 Nederlandse versie

→ America is not the land of the free but one of monopolies so predatory they imperil the nation

Excellent piece by Observer/Guardian columnist Will Hutton based on the work of economist Thomas Philippon:

The news is that over the last 20 years per capita EU incomes have grown by 25% while the US’s have grown 21%

And:

The US economy is becoming increasingly harmed by ever less competition, with fewer and fewer companies dominating sector after sector – from airlines to mobile phones.

Because:

But why has this happened now? Philippon has a deadly answer. A US political campaign costs 50 times more than one in Europe in terms of money spent for every vote cast. [...] Corporations want a return on their money, and the payback is protection from any kind of regulation, investigation or anti-monopoly policy that might strike at their ever-growing market power.

A real eye-opener.

Permalink - posted 2019-12-02

Slides: AS paths: long, longer, longest

Presentation slides from my lightning talk "AS paths: long, longer, longest" at the RIPE-79 meeting in Rotterdam, 18 October 2019.

Permalink - posted 2019-11-29

Valid address space, bogons and martians

There are some advantages to filtering out packets with invalid addresses in them. That would be a packet with a private source or destination address, for instance. Those never have any business traveling across the internet. (Not to be confused with BCP 38 filtering.) For instance, there have been instances where spammers grab an unused prefix, start announcing it in BGP, do a spam run and then drop the prefix. When packets with private addresses enter your network, bad things may happen if you use those addresses yourself. And these invalid "martian" packets are just an annoyance, using up traffic and generating log entries.

Full article / permalink - posted 2019-11-28

Europe runs out of IPv4 addresses even further, what now?

Less than three months ago I wrote about how the uptake of the remaining IPv4 addresses at RIPE was accelerating, with the RIPE NCC likely to run out of the addresses set aside in the "last /8" before the end of the year. And so they did, two days ago. So as of this week, it's no longer possible to request address space in the RIPE service region (Europe, former Soviet Union, Middle East) and get them within a somewhat predictable period...

Full article / permalink - posted 2019-11-27

Airpods Pro

It's insane. I already spent nearly 800 euros on bluetooth headphones this year. And then Apple released the Airpods Pro, costing € 279 here in the Netherlands. And I couldn't help myself and bought a pair. So let's see how they compare...

Full article / permalink - posted 2019-11-26

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