In the last post I proposed a method for IPv6 on HAMNET that doesn’t require any changes to devices outside your control, has no additional administrative overhead, and utilizes publicly routable IPv6 addresses implicitly assigned to ham radio. I am talking about 6to4 prefixes 2002:2c00::/25 and 2002:2c80::/26 corresponding to 44.0.0.0/9 and 44.128.0.0/10.

Before you start talking about how horrible 6to4 is, go read the previous post to better understand why this is a perfect technology for the initial implementation of IPv6 on HAMNET but also why it won’t cover broader amateur radio needs and we still have to get a real GUA space.

IPv6 test, now available on HAMNET

If you read through the mentioned post or maybe even followed the guide, you might want to verify that everything you did went okay. In that case, I proudly present to you the first every IPv6 testing website available on HAMNET (I think).

After just one and a half sleepless nights, I’ve set up a test-ipv6.com mirror available to all HAMNET users. It does everything:

• Checks your v4/v6 address
• Verifys that your recursive DNS resolver can connect to IPv6-only name servers
• Tests path MTU discovery

…all from the comfort of your web browser.

In the process I made some minor modifications to the original project. The most notable one is disabling 6to4 warnings, because, as we’ve already discussed, 6to4 works beautifully on HAMNET. I also slightly modified two Makefiles to allow one make to build the entire project. You can view the whole diff here.