Patent ID: 11916878
Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. An Internet of Things (IoT) device, comprising:
a network interface configured to allow the IoT device to communicate with an external device;
a communication port;
a packet preprocessor configured to:
control an access of an application program module based on a packet form of a packet received from the external device through the network interface, the application program module configured to verify whether content of a packet is in a preset packet form, and upon verification, provide a service;
unify the communication port for communication with the external device of the network interface;
determine whether the packet received through the port is in the preset packet form; and
relay the packet to the application program module when the packet is in the preset packet form,

wherein the application program module comprises verifying the packet content, and
wherein the communication port for providing the service closes after being opened for a preset period.