1. A communication device comprising:a wireless interface configured to perform a wireless communication according to a predetermined standard;
a processor; and
a memory storing computer-readable instructions therein, the computer-readable instructions, when executed by the processor, causing the communication device to:
receive a first signal including first identification information and attribute information from a target device via the wireless interface by using a first communication layer and not using a second communication layer that is higher than the first communication layer;
determine which of a first type device or a second type device the target device is by using the attribute information;
execute an authentication of the target device by using the first identification information in a case where it is determined that the target device is the first type device; and
execute an authentication of the target device by using second identification information different from the first identification information in a case where it is determined that the target device is the second type device and a second signal including the second identification information is received from the target device via the wireless interface by using the second communication layer, the second signal being sent to the communication device from the second type device in accordance with a predetermined application software.