IPv6 brokenness experiment, November results

Erik Kline ek at google.com
Tue Dec 1 15:09:23 CET 2009


2009/12/1 Chris Hills <chaz at chaz6.com>:
> On 01/12/09 09:22, Tore Anderson wrote:
>> Opera is still by far the biggest cause of breakage - about nine out of
>> ten clients that are unable to access the dualstack site appears to be
>> Opera users with (presumably) broken 6to4 or Teredo connectivity.  Three
>> weeks ago they told me that the issue was beeing looked into, but no
>> word yet on whether a fix is forthcoming or not.
>
> I recently updated Opera to 10.10-4742 on Linux x86 (qt4 shared) and it
> now seems to prefer ipv4 when both ipv4 and ipv6 are available for the
> website, from a host with global unicast addresses.

Hmmm...somehow that doesn't quite seem like the right fix.  In a
dualstacked but heavily v4-NAT'd world it would still prefer v4?


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