use interface netX if ethX is not available

mxstartup2mxconfig

@@ -99,7 +99,20 @@ sub read_file {
   return @lines;
 }
 
+sub eth_to_net_if_not_exists {
+    my $dev = shift;
+    my $net;
+    my $num;
 
+    return $dev if -d "/sys/class/net/${dev}";
+
+    ($num) = $dev =~ /^eth(\d+)$/;
+    $net = sprintf "net%02d", $num;
+
+    return $net if -d "/sys/class/net/${net}";
+
+    return $dev;
+}
 
 sub parse_ips {
   local $_;
@@ -160,6 +173,8 @@ sub parse_ips {
     }
     $_todest  = inet_ntoa($tmphostname);
 
+    $device = eth_to_net_if_not_exists($device);
+
     $H->{$ip} = { device => $device, addressprefix => $addressprefix, ports => {%ports}, todest => $_todest };
   }