X-Git-Url: http://www.lcore.org/git/lcore.git/blobdiff_plain/9763940f8849e5c807566157829a1e6d2c9172ee..a77cd534c22418ec9a8a22ae42efef1a9500b193:/dnscore.pas

diff --git a/dnscore.pas b/dnscore.pas
index e38f35f..08f99d1 100644
--- a/dnscore.pas
+++ b/dnscore.pas
@@ -684,31 +684,16 @@ end;
 {$ifdef ipv6}
 
 procedure initpreferredmode;
-var
-  l:tbiniplist;
-  a:integer;
-  ip:tbinip;
-  ipmask_global,ipmask_6to4,ipmask_teredo:tbinip;
-
 begin
   if preferredmodeinited then exit;
   if useaf <> useaf_default then exit;
-  l := getv6localips;
-  if biniplist_getcount(l) = 0 then exit;
-  useaf := useaf_preferv4;
-  ipstrtobin('2000::',ipmask_global);
-  ipstrtobin('2001::',ipmask_teredo);
-  ipstrtobin('2002::',ipmask_6to4);
-  {if there is any v6 IP which is globally routable and not 6to4 and not teredo, prefer v6}
-  for a := biniplist_getcount(l)-1 downto 0 do begin
-    ip := biniplist_get(l,a);
-    if not comparebinipmask(ip,ipmask_global,3) then continue;
-    if comparebinipmask(ip,ipmask_teredo,32) then continue;
-    if comparebinipmask(ip,ipmask_6to4,16) then continue;
-    useaf := useaf_preferv6;
-    preferredmodeinited := true;
-    exit;
-  end;
+
+  if (have_ipv6_connectivity) then
+    useaf := useaf_preferv6
+  else
+    useaf := useaf_preferv4;
+
+  preferredmodeinited := true;
 end;
 
 {$endif}