C#

public void Send(byte[] data, IPEndPoint to)<br />
{<br />
   using (Socket sock = new Socket(to.AddressFamily, SocketType.Dgram, ProtocolType.Udp))<br />
      sock.SendTo(data, SocketFlags.None, to);<br />
}<br />
<br />
<br />
public void Receiving()<br />
{<br />
    byte[] rbuf = new byte[1 << 14];<br />
    using (Socket sock = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp))<br />
     {<br />
     // [Edit] Solution<br />
     sock.Bind(new IPEndPoint(IPAddress.Any, aPort));<br />
     while (true)<br />
     {<br />
          EndPoint rep = new IPEndPoint(IPAddress.Any, 0);<br />
          int read = sock.ReceiveFrom(rbuf, ref rep);<br />
          Recieved(rbuf, read, rep);<br />
     }<br />
     }<br />
}<br />
void Recieved(byte[] buf, int nRead, EndPoint where)<br />
{<br />
    Console.WriteLine("Recieved {0} byte(s) from {1}", nRead, where);<br />
}