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This is the archive for all posts from 2020.

Gelukkig 2020!

Read the article - posted 2020-01-01

Happy 2020!

Read the article - posted 2020-01-01

Mijn nieuwe bedrijfsnaam: inet⁶ consult

Read the article - posted 2020-01-03

The rise of IPv6 and fall of IPv4 in the 2010s

The 2010s were the decade that we ran out of IPv4 addresses and the decade that IPv6 deployment got underway—but IPv4 is still going strong even without a fresh supply of addresses.

Here's an overview of what happened with IPv4 and IPv6 in the 2010s.

Read the article - posted 2020-01-08

De opkomst van IPv6 en ondergang van IPv4 in de jaren 2010

De jaren '10 van de 21e eeuw waren het decennium dat de IPv4-adressen opraakten en het decennium dat IPv6-adoptie op stoom begon te komen, maar IPv4 toont nog geen tekenen van omvallen zonder toevoer van verse adressen.

Hier is een overzicht van wat er gebeurd is met IPv4 en IPv6 in de jaren 2010.

Read the article - posted 2020-01-08

IPv4 now also exhausted in Africa

As of a few days ago, IPv4 has run out in all regions in the world, as AFRINIC, the Regional Internet Registry that serves Africa, has now reached IPv4 exhaustion phase 2.

For more on the IPv4 exhaustion over the last decade, see my story The rise of IPv6 and fall of IPv4 in the 2010s.

Read the article - posted 2020-01-16

IPv4 nu ook op in Afrika

Met ingang van een paar dagen geleden is IPv4 nu op in alle regio's van de wereld nu AFRINIC, de Regional Internet Registry die Afrika bedient, IPv4 exhaustion phase 2 bereikt heeft.

Zie mijn verhaal De opkomst van IPv6 en ondergang van IPv4 in de jaren 2010 voor meer over het opraken van IPv4 de afgelopen tien jaar.

Read the article - posted 2020-01-16 homepage redirected to

As of today, is redirected to This only applies to the front page of, all other pages remain available as before.

A copy of the existing front page is now available on

Remember that is the new home of my blog, and there are separate pages dedicated to different topics, such as BGP, IPv6 and non-work related posts.

You may want to update your RSS feed.

Read the article - posted 2020-01-21

IPv6 is nu een succes, zelfs bij 25% adoptie

We moeten niet het succes van IPv6 afmeten aan in hoeverre IPv6 IPv4 vervangt, maar in hoeverre IPv6 IPv4 aanvult. En dat doet het al heel aardig op dit moment door IPv4aaS (IPv4 as a service) mogelijk te maken. En IPv4aaS zal ervoor zorgen dat ISPs IPv6 gaan eisen voor peering met streamingdiensten en andere grote contentaanbieders.

Read the article - posted 2020-01-23

Winner doesn't take all: IPv6 is now a success, even at 25% deployment

We shouldn't gauge the success of IPv6 by looking at how much IPv6 replaces IPv4, but by how much IPv6 complements IPv4. And it's already doing that quite well today by making IPv4aaS (IPv4 as a service) possible. And IPv4aaS will make ISPs require IPv6 when peering with streaming services and other big content providers.

Read the article - posted 2020-01-23


Image link - posted 2020-01-31

BGP hands-on training courses in 2020

For 2020, there will be hands-on BGP training courses in association with NL-ix on the following dates:

Read the article - posted 2020-02-12

BGP hands-on trainingen in in 2020

In 2020 zijn er BGP hands-on trainingen in samenwerking met NL-ix op de volgende dagen::

Read the article - posted 2020-02-12

Archiving data: storage prices in 2013 and 2020

Back in 2013, I wrote a blog post about archiving. In it, I compared the costs per terabyte (and the weight per terabyte) of several ways to store data for archival purposes. When I read Beyond Time Machine: 5 Archiving over at The Eclectic Light Company blog, I realized that it’s time revisit this topic.

Read the article - posted 2020-04-19

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