From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stephen Hemminger <shemminger@vyatta.com>
Subject: Re: Need a special way tune TCP IPv6->IPv4 fallback timeout
Date: Thu, 24 Mar 2011 10:24:01 -0700
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To: Guillaume Leclanche <guillaume@leclanche.net>
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On Thu, 24 Mar 2011 18:05:35 +0100
Guillaume Leclanche <guillaume@leclanche.net> wrote:

> 2011/3/24 Stephen Hemminger <shemminger@vyatta.com>:
> > The best way is to try both at the same time. This trick is known
> > as "Happy Eyeballs"
> >
> > =C2=A0http://tools.ietf.org/html/draft-wing-v6ops-happy-eyeballs-ip=
v6-01
>=20
> Happy eyeballs implementation would be royal, I thought my proposal
> would be easier to implement as a first step. I'm very likely to be
> wrong though :) Well, if anybody is working currently on Happy
> Eyeballs implementations in the TCP stack, it's great !

It is best handled in client. Not in the stack itself because
only client has DNS records to work with.