Subj : Re: IPv6
To   : Markus Reschke
From : Wilfred van Velzen
Date : Sat Nov 30 2013 17:41:01

Hi,

On 2013-11-30 16:25:58, Markus Reschke wrote to Wilfred van Velzen:
  about: "Re: IPv6":

 MvdV>>> If the target has an AAAA record try IPv6 first.
 MvdV>>> Unless the IPv6 is via Teredo, then try IPv4 first.

 WvV>> I don't know if binkd uses glibc for this. But on my linux system,
 WvV>> binkd always uses the IPv6 address first...

 MR> The resolving is done by calling getaddrinfo() which supports IPv4 and IPv6
 MR> addresses. The output list can be controlled with /etc/gai-conf. In my case
 MR> I prefer IPv4 for outgoing connections because my IPv6 connectivity is
 MR> based on a tunnel (latency, overhead). The default is to prefer IPv6 if
 MR> available.

The /etc/gai.conf on my system is the default as provided by the distribution. It only contains 3 non commented out lines regarding private IPv4 address scope... I have native IPv6, so the default is find for me. ;)

Bye, Wilfred.


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