title: Bluetooth low energy : Discovery modes and connection mode, Independent or dependent?
body: <p>In GAP test spec (4.1.0) there is a test case (TP/DISC/NONM/BV-02-C [Non-discoverable Mode Undirected Connectable Mode]).</p>
  
  <p>Basically i need to put IUT in non-discovarable mode and non-connectable mode.
  Let's see what core4.1 spec has to say:</p>
  
  <p>Non-Discovarable mode:
  1)Shall not set LE GENERAL and LE LIMITED Flags in ADV data.
  2)A Peripheral device in the non-connectable mode may send non-connectable
  undirected advertising events or scannable undirected advertising events
  or may not send advertising packets.
  If the Peripheral device in the non-discoverable mode sends non-connectable
  advertising events or scannable undirected advertising events then it is
  recommended that the Host configures the Controller as follows:
  • The Host should set the advertising filter policy to either ‘process scan and
  connection requests only from devices in the White List’ or ‘process scan
  and connection requests from all devices’.</p>
  
  <p>Undirected-Connectable mode:
  The Host shall configure the Controller to send undirected connectable advertising
  events.</p>
  
  <p>Type of advertisement is contradictory. So what should i do for this particular test case?</p>