nanog mailing list archives

Re: Yahoo and IPv6


From: Tim Chown <tjc () ecs soton ac uk>
Date: Wed, 1 Jun 2011 12:18:07 +0100


On 31 May 2011, at 22:31, Voll, Toivo wrote:


Netalyzr (http://n3.netalyzr.icsi.berkeley.edu/analysis) finds no issues with my IPv6 status, but alerts me to the 
fact (since confirmed by switching to IE) that Google Chrome defaults to IPv4 rather than IPv6, and consequently a 
lot of the testing tools claim that my IPv6 is broken. 

I'm a little confused there - the current Chrome prefers IPv6, and also now includes code to allow fast failover to 
IPv4 in the event IPv6 connectivity is down/slow (300ms headstart).

I had some issues with Netalyzer detecting my dual-stack status, which the chaps there are helping with.

Tim



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