19.11.2014 15:08, Michal Kubecek wrote:
> The reason for AF_INET6 is that a PF_INET6 socket bound to
> :: can accept both IPv6 and IPv4 connections (as long as IPV6_V6ONLY is
> 0 and the system supports this setting) while a PF_INET socket can only
> accept IPv4 connections. Therefore PF_INET6 should be preferred if we
> want to listen on "any address" (as long as we can only use one socket).

   At first, as you can see from link in previous message, it doesn't work for 
Windows XP.
   At second, it is a good idea to use separate sockets on other systems as 
well to let 
users bind "any interface" for IPv6 and "localhost only" for IPv4.

-- 
   WBR, SD.

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