_Socket = new Socket(AddressFamily.InterNetwork, SocketType.Raw , ProtocolType.IP); if (_IP == null) { return; } _Socket.Bind(new IPEndPoint(IPAddress.Parse(_IP), 0)); byte byTrue = new byte[4] { 1, 0, 0, 0 }; byte byOut = new byte[4]; _Socket.SetSocketOption( SocketOptionLevel.IP, SocketOptionName.HeaderIncluded, true ); _Socket.IOControl(IOControlCode.ReceiveAll, byTrue, byOut); _Socket.BeginRec