Category Archives : IPv6

DNSSEC on a domain with BIND and IPv6

I finally managed to sign my with DNSSEC, whereas the signing happens via IPv6. As the original Nominet documentation about DNSSEC points out (this article is based on that documentation), you would need two nameservers. Familiar with BIND, its concept of “views” came to mind and here is how you can do this – […]

How do I test my IPv6 capable mailserver? II

Now you have IPv6 enabled on your mail server but you don’t know any email address what is actually IPv6 enabled as well? Here are two – what I just tested: my own… hehe. Both are sending back the mail headers and the first one also shows you DNS info for the return […]

How do I test my IPv6 capable mailserver?

Just a quick tip: You have Postfix running and want to enable IPv6 for your email as well? After quite some playing around I finally got it right: inet_interfaces =,, 2a01:348:6:315::2, ::1 inet_protocols = ipv4, ipv6 This makes Postfix listen only where you actually need it to – I dont like daemons listening […]

Dedicated IPv6 gateway – way to go deploying IPv6

m0n0wall is a good product for running a firewall/gateway on an embedded device. It is based on BSD, very slick and reliable. I was using it a couple of years back, but unfortunately my hardware didnt had wireless integrated, so I had to give it up and get a WRT54GL – running OpenWRT of course. […]

Enabling IPv6 privacy on an Ubuntu box

It was bugging me a bit that my (internal) IPv6 address was a static one, ie. it is forever and ever the same, unlike a dynamic DSL IP. I heard/read somewhere about “IPv6 Privacy Extensions” are dealing with this issue, so I looked into this. I originally thought – without having read something about it […]

Make your IPv6 accessible website known out there

Dont forget, make your website accessible via IPv6 and submit them here: It might be worth considering to make your already IPv6 enabled website accessible only via IPv6 on the World IPv6 day… join me in!

Your IPv6 address is static

Yeah, at the moment (will that change in future?) your IPv6 address (as it is most likely done via a 6in4 tunnel in your place) is a static one. Just read that again. Just something mindboggling about the address space: I have a /64 range locally. Thats about as much as one IPv4 range for […]

Test your IPv6 connection

I just came across with the World IPv6 day on the 8th of June 2011 an IPv6 connectivity testing website. Its great. I got 10 out of 10 for dual stack, and 10 out of 10 with IPv6 only. I am ready. Let it come. I am gonna embrace it.

13 days with IPv6 enabled

I am now for exactly 13 days IPv6 ready. Ok, there are not many websites out what you can use on IPv6. The biggest one probably I know is a german IT news portal No problems so far. As I wrote in my initial blog “on day 2″ I am using the 6to4 tunnel […]

IPv6 @ home!

I setup yesterday IPv6 via 6to4 with tunnel from Hurricane Electric. It just works. I still have to do some tweaks like as I am using a dynamic IP, the tunnel will go down when my IP changes. I also need to do a couple of other minor things. It was interesting to see that […]