do no run off_to_static, for solaris smaller than 5.11

ipv6-tools

@@ -192,6 +192,12 @@ eof
 
 function off_to_static()
 {
+    # check that we have solaris 5.11
+    if (( $(echo "$(uname -r) 5.11" | gawk '{print ($1 < $2)}') )) ; then
+        pr "Solaris version ($(uname -r) smaller than 5.11."
+        pb "Exit !"
+        exit 0
+    fi
     # check that we are ipv6 off
     echo ""
     pb "--"