Udp Multi receive : Socket Udp Server : Network C# Examples

    
using  System;
using  System.Net;
using  System.Net.Sockets;
using  System.Text;

class  MainClass
{
      public  static  void  Main()
      {
            Socket  sock  =  new  Socket(AddressFamily.InterNetwork,  SocketType.Dgram,  ProtocolType.Udp);
            Console.WriteLine("Ready  to  receive...");

            IPEndPoint  iep  =  new  IPEndPoint(IPAddress.Any,  9999);
            EndPoint  ep  =  (EndPoint)iep;
            sock.Bind(iep);
            sock.SetSocketOption(SocketOptionLevel.IP,  SocketOptionName.AddMembership,new  MulticastOption(IPAddress.Parse("127.0.0.1")));

            byte[]  data  =  new  byte[1024];
            int  recv  =  sock.ReceiveFrom(data,  ref  ep);
            string  stringData  =  Encoding.ASCII.GetString(data,  0,  recv);
            Console.WriteLine("received:  {0}    from:  {1}",  stringData,  ep.ToString());
            sock.Close();
      }
}