Cosmos TcpClient test

Kernel.cs

using Cosmos.HAL;
using Cosmos.System.Network;
using Cosmos.System.Network.ARP;
using Cosmos.System.Network.Config;
using Cosmos.System.Network.IPv4;
using Cosmos.System.Network.IPv4.TCP;
using Cosmos.System.Network.IPv4.UDP;
using Cosmos.System.Network.IPv4.UDP.DHCP;
using Cosmos.System.Network.IPv4.UDP.DNS;
using Cosmos.TestRunner;
using System;
using System.Collections.Generic;
using System.Text;
using Sys = Cosmos.System;

namespace NetworkTest
{
    public class Kernel : Sys.Kernel
    {
        protected override void BeforeRun()
        {
            NetworkDevice nic = NetworkDevice.GetDeviceByName("eth0"); //get network device by name
            //IPConfig.Enable(nic, Address.Parse("10.33.20.54"), new Address(255, 255, 255, 0), Address.Parse("10.33.20.254")); //enable IPv4 configuration

            IPConfig.Enable(nic, new Address(10, 33, 20, 54), new Address(255, 255, 255, 0), new Address(10, 33, 20, 254)); //enable IPv4 configuration

            Console.WriteLine("Network config done! IP=" + NetworkConfig.CurrentConfig.Value.IPAddress.ToString());
        }

        protected override void Run()
        {
            try
            {
                var tcpClient = new TcpClient(4242);

                tcpClient.Connect(new Address(10, 33, 20, 17), 4242);

                Console.WriteLine("TCP Connected!");

                tcpClient.Send(Encoding.ASCII.GetBytes("Hello from Cosmos!"));

                var ep = new EndPoint(Address.Zero, 4242);

                while (true)
                {
                    var data = Encoding.ASCII.GetString(tcpClient.Receive(ref ep));

                    Console.WriteLine("Received TCP packet from " + ep.ToString());
                    Console.WriteLine("data= " + data);

                    if (data.StartsWith("end"))
                    {
                        break;
                    }
                    else if (data.StartsWith("send"))
                    {
                        tcpClient.Send(Encoding.ASCII.GetBytes("Hello from Cosmos!"));
                    }
                }

                tcpClient.Close();

                Console.ReadKey();

                Sys.Power.Shutdown();
            }
            catch (Exception ex)
            {
                Console.WriteLine("Exception: " + ex);
            }
        }
    }
}