DART /FlutterでLDAPに接続する方法

var host= '10.1.1.5';
    var login= 'myLogin'; //loginController.text;
    var password= 'myPassword'; //passController.text;
    var port= 389;
    var connection= new LdapConnection(host: host, ssl: false, port: port, bindDN: login, password: password);
    try {
      await connection.open();
      await connection.bind();
      print('Bind OK');
    } catch (e, stacktrace) {
      print('********* Exception: $e, Stacktrace: $stacktrace');
    } finally {
      print('Closing');
      await connection.close();
    }
  }