An electronic apparatus includes a sub-system that receives, from a wireless LAN module, incoming data including wireless LAN packets according to plural communication methods and a main system including a processor that process the incoming data. The sub-system includes an interface circuit and a sub-processor. The interface circuit acquires a data length of each of the wireless LAN packets from a header of the wireless LAN packet. Based on MAC addresses included in the wireless LAN packet, the interface circuit identifies a communication method of the wireless LAN packet. Based on the data length and the communication method of the wireless LAN packet, the interface circuit transfers the wireless LAN packet to one of different storage areas respectively corresponding to the communication methods. The sub-processor transfers the wireless LAN packet from the one of the different storage areas to the main system.