SSHTunnel SSH.NET connect SSH and forward Socks 5

SSHTunnel.cs

using Renci.SshNet;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net.Sockets;
using System.Reflection;
using System.Text;

namespace ToolSSH
{
    public class SSHTunnel : IDisposable
    {

        private SshClient client;
        private ForwardedPortLocal port;
        private int localPort;

        public SSHTunnel(ConnectionInfo connectionInfo, uint remotePort)
        {
            try
            {
                client = new SshClient(connectionInfo);

                // using 0 for the client port to dynamically allocate it
                port = new ForwardedPortLocal("127.0.0.1", 0, "127.0.0.1", remotePort);

                client.Connect();
                client.AddForwardedPort(port);
                port.Start();

                // HACK to get the dynamically allocated client port
                var listener = (TcpListener)typeof(ForwardedPortLocal).GetField("_listener", BindingFlags.Instance | BindingFlags.NonPublic).GetValue(port);
                localPort = ((System.Net.IPEndPoint)listener.LocalEndpoint).Port;
            }
            catch
            {
                Dispose();
                throw;
            }
        }

        public int LocalPort { get { return localPort; } }

        public void Dispose()
        {
            if (port != null)
                port.Dispose();
            if (client != null)
                client.Dispose();
        }

    }
}