Red Hat Bugzilla – Bug 323261
Firefox does not prefer IPv6
Last modified: 2008-01-29 20:34:33 EST
Description of problem:
If you visit that website when you have a globally routable 6to4 IPv6 address
you do not get the IPv6 version of that page which allows you to set up reverse
DNS for your 6to4 /48. In order to get the IPv6 version of the page you have to
explicitly use the IPv6 address in the URL and visit
this is pretty icky.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1.Set your machine up with a working globally routable IPv6 address in the
2.Point firefox at http://6to4.nro.net/
3.Observe the page claims that you're coming from an IPv4 address.
The page claims you're coming from an IPv4 address and won't let you set up the
reverse DNS entry for your IPv6 6to4 block.
The page should tell you that you're coming from an IPv6 address and should
allow you to set up the DNS servers for reverse mapping your IPv6 6to4 /48 block.
The http://6to4.nro.net/ seems to work fine for me, it detects my address
2001:470:1f05:51:219:b9ff:fe58:7ad6 (it's a tunnel with Hurricane Electirc).
I'm going to close this.