Suitable for network systems that do not support .255 broadcast Mode of operation: WolSignal>Internet>Router>Mobile>PC Steps for usage: 1. Apply for a fixed IP 2. Install this app on the Android phone of the district network 3. Bind the IP and MAC of the mobile phone in the router 4. Router set port forward to mobile phone Note: Due to Android system restrictions, only port 1024 and above can be used