On 2018-10-25 09:06, Janne Johansson : Benny Pedersen wrote:   
   > On 2018-10-25 00:40, Benny Pedersen : Michiel van der Vlist wrote:   
   >>  MvdV> and up).  If the destination address is a 6to4 tunnel address   
   >>  MvdV> (2002::/16) many OSs default to IPv4 if an IPv4 address is   
   >> present.   
   >>   
   >> time to update to a later glibc where ipv6 is prefered over ipv4 failback   
   >   
   > I think its mostly a setting in your resolv.conf or similar file to   
   > change default priority of v4 or v6 and not so much a age-of-glibc issue.   
      
   Also, at least OpenBSD (if we are still at 'Many OSes') defaults to   
   prefer v4, with a resolv.conf option:   
   family inet6 inet4   
   to flip it around if you want it the other way around.   
      
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