Arnt Gulbrandsen
About meAbout this blog


I enable IPv4. Temporarily at least.

It really is too late to retreat from IPv6. The problems need to be solved, not deferred, because the set of free IPv4 addresses is smaller than ever and shrinking faster than ever.

But right now I'm not willing to be a guinea pig.


Why this is on IPv6 only

New IPv4 addresses are being allocated at a rate of 6-7 per second and there aren't very many left. In a while, we're going to run out. What then?

I think that when it happens, some people will try to buy other people's IPv4 addresses, but frankly I doubt that there'll be enough willing sellers to supply 6-7 addresses per second, so at least some people will have to make do with only IPv6 addresses. That's going to be painful.

That period will be less painful if a few people put web sites and other services on only IPv6 now, so that the transition starts sooner, with fewer victims, and ramps up later.

I'm not willing to do all that much. But this blog is unimportant, so I put that on IPv6. I could have used a name-based virtual host or used one of my free IPv4 addresses, but someone has to make a start.

Later, maybe I can put something other than a web site on IPv6.


The blogger and the blog

Postings to this blog represent the opinion of Arnt Gulbrandsen,, Schweppermannstraße 8, 81671 München, Germany. If something sounds more like fact than opinion, then it represents my understanding at the time of writing, no more.

Links to other sites worked as intended at the time of writing, but of course I cannot vouch for their accuracy or veracity at the time of reading.

There is no comment form here, because a) I wouldn't get any, so why bother, and b) German law effectively requires moderation, and that's a chore I hate more than most.

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