+$client_ip = $_SERVER["REMOTE_ADDR"];
+
+if ((strpos($client_ip, "192.168.") === 0) || (strpos($client_ip, "10.8.") === 0)
+ || (strpos($client_ip, "2a02:578:5002:8174:") === 0)
+ || (strpos($client_ip, "2a02:578:5002:196::2") === 0)) {
+
+ $local_net = True;
+
+} else {
+
+ $local_net = False;
+
+}
+
+