New Post: Create an SSH tunnel

I did this :

using (var client = new SshClient("remote.com", "username", "password"))
{
         client.Connect();
         var port = new ForwardedPortLocal("localhost", 1080, "remote.com", 1080);
         client.AddForwardedPort(port);
         port.Exception += delegate(object sender, ExceptionEventArgs e)
         {
                 Console.WriteLine(e.Exception.ToString());
         };
         port.Start();
}
Console.ReadKey();

I can send commands like if I am connected to a server in ssh (commands like ls, pwd, mkdir etc) but I can't use the tunnel as a SOCKS proxy in openvpn.
The command

ssh -NfD 1080 username@remote.com

works, but not the C# application, and I don't understand why