The following states are used by the module:
- STATE_DISCONNECTED: The initial state, in which the device has no IP connectivity. A
NETWORK_CONNECTmessage brings all network interfaces up and starts connecting (conn_mgr_all_if_up()andconn_mgr_all_if_connect()). - STATE_CONNECTED: The PPP link carries IP traffic. A
NETWORK_DISCONNECTmessage takes the interfaces down (conn_mgr_all_if_down()).