+$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;
+               
+}
+                         
+