Question by KaDaK4 · Jun 18, 2018 at 07:58 PM · c#networking broadcast peer-peer

P2P Broadcasting issue

Hi guys, so I'm trying to broadcast my local devices in order to open connections to them but it doesn't seem to work. Here is the simplified code:

 [SerializeField] private int broadcastPort;
 [SerializeField] private int broadcastKey;
 [SerializeField] private int broadcastVersion;
 [SerializeField] private int broadcastSubVersion;
 [SerializeField] private int broadcastInterval;
 [SerializeField] private string broadcastMsg;
 [SerializeField] private Text text;

 private List<int> connectionsIds = new List<int>();
 private int hostId;
 private byte reliableId; 
 private byte unreliableId;
 private NetworkReader recReader;

 #region Initialization
 void Awake()
 {
     CreateHost(broadcastPort);
     StartBroadcast(broadcastPort);
 }

 void CreateHost(int port)
 {
     // Inicio el network transport
     NetworkTransport.Init();
     // Creo la configuracion de la conexion
     var cgf = new ConnectionConfig ();
     reliableId = cgf.AddChannel (QosType.Reliable);
     unreliableId = cgf.AddChannel (QosType.Unreliable);
     var topology = new HostTopology(cgf, 4);
     // Comienzo a hostear
     hostId = NetworkTransport.AddHost (topology, port);
 }

 void Connect(string ip, int port)
 {
     // Me conecto a la ip y puerto indicados y guardo la conexion resultante
     byte error;
     var cnn = NetworkTransport.Connect (hostId, ip, port, 0, out error);

     if(!connectionsIds.Contains(cnn))
         connectionsIds.Add(cnn);
 }

 private void StartBroadcast(int port)
 {
     // Comienzo a broadcastear para conectarme a los demas dispositivos
     byte error;
     byte error2;

     NetworkTransport.StartBroadcastDiscovery(hostId, port, broadcastKey, broadcastVersion, broadcastSubVersion, null, 0, broadcastInterval, out error);
     NetworkTransport.SetBroadcastCredentials(hostId, broadcastKey, broadcastVersion, broadcastSubVersion, out error2);
 }
 #endregion

 void Update()
 {
     ReceiveMessages ();
 }

 public void SendToAll(byte[] bytes)
 {
     // Envio la informacion recibida a todas las conexiones
     byte error;
     for (int i = 0; i < connectionsIds.Count; i++)
     {
         var cnn = connectionsIds[i];
         NetworkTransport.Send(hostId, cnn, reliableId, bytes, bytes.Length, out error);
     }
 }

 void ReceiveMessages()
 {
     byte error;
     int recHostId;
     int recCnnId;
     int recChlnId;
     int recBytesCount;
     byte[] recBytes = new byte[1024];

     while(true)
     {
         var eventType = NetworkTransport.Receive(out recHostId,    out recCnnId, out recChlnId, recBytes, recBytes.Length, out recBytesCount, out error);
        
         if (eventType == NetworkEventType.BroadcastEvent)
             HandleBroadcastEvent();
     }
 }

 private void HandleBroadcastEvent()
 {
     byte error;
     int port;
     string address;
     NetworkTransport.GetBroadcastConnectionInfo(hostId, out address, out port, out error);

     Connect(address, port);
 }

I also get 3 connection entries and I don't know where they come from. It happens when I hit play in editor mode

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