Bug 323261 - Firefox does not prefer IPv6
Firefox does not prefer IPv6
Product: Fedora
Classification: Fedora
Component: firefox (Show other bugs)
All Linux
low Severity low
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Assigned To: Christopher Aillon
Fedora Extras Quality Assurance
Depends On:
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Reported: 2007-10-08 12:26 EDT by Eric Hopper
Modified: 2008-01-29 20:34 EST (History)
1 user (show)

See Also:
Fixed In Version: 3.0-0.beta2.12.nightly20080121.fc9.x86_64
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2008-01-29 20:34:33 EST
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RHEL 7.3 requirements from Atomic Host:
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Description Eric Hopper 2007-10-08 12:26:37 EDT
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):

How reproducible:
Every time

Steps to Reproduce:
1.Set your machine up with a working globally routable IPv6 address in the
2002::/16 block.
2.Point firefox at http://6to4.nro.net/
3.Observe the page claims that you're coming from an IPv4 address.
Actual results:
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.

Expected results:
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.
Comment 1 Pete Zaitcev 2008-01-29 20:34:33 EST
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.


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