using System;
using System.Net;
using System.Net.Sockets;
using System.Text;
class MainClass
{
public static void Main()
{
int receivedDataLength;
byte[] data = new byte[1024];
IPEndPoint ip = new IPEndPoint(IPAddress.Any, 9999);
Socket socket = new Socket(AddressFamily.InterNetwork,SocketType.Dgram, ProtocolType.Udp);
socket.Bind(ip);
IPEndPoint sender = new IPEndPoint(IPAddress.Any, 0);
EndPoint tmpRemote = (EndPoint)(sender);
receivedDataLength = socket.ReceiveFrom(data, ref tmpRemote);
Console.WriteLine("Message received from {0}:", tmpRemote.ToString());
Console.WriteLine(Encoding.ASCII.GetString(data, 0, receivedDataLength));
string welcome = "Welcome";
data = Encoding.ASCII.GetBytes(welcome);
socket.SendTo(data, data.Length, SocketFlags.None, tmpRemote);
for(int i = 0; i < 5; i++)
{
data = new byte[1024];
receivedDataLength = socket.ReceiveFrom(data, ref tmpRemote);
Console.WriteLine(Encoding.ASCII.GetString(data, 0, receivedDataLength));
}
socket.Close();
}
}
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