Receive UDP broadcast packets in C #

Reference article

https://garafu.blogspot.com/2015/08/broadcast.html

Implementation

This is a sample that makes the task of receiving and echoing UDP broadcast packets resident.

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

namespace udp
{
    public class udpSample {

        public void start()
        {
            Task.Run(() => BroadcastReceiver()); //UDP broadcast packet reception task activation
        }

        private void BroadcastReceiver()
        {
            var endPoint = new IPEndPoint(IPAddress.Any, 4000); //IP Address to monitor all addresses.Specify Any

            using (UdpClient udpClient = new UdpClient(endPoint)) {
                while(true) {
                    var buff = udpClient.Receive(ref endPoint);  //Receive (synchronous)
                    udpClient.Send(buff, buff.Length, endPoint); //Echo the received content
                }
            }
        }
    }
}

IPEndPoint has ʻusing System.Net; UdpClient requires ʻusing System.Net.Sockets;.