System for controlling network connection based on controller, and method therefor

Abstract

A node according to an embodiment disclosed in the present document may comprise a communication circuit, a processor operatively connected to the communication circuit, and a memory which is operatively connected to the processor and stores a reception application and an access control application, wherein the memory stores instructions causing, when executed by the processor, the node to: detect a network reception event from a source network through the access control application; through the access control application, identify the presence or absence of a data flow which is applied from an external server and corresponds to a destination service port included in a data packet from the source network; and through the access control application, request network reception from the external server on the basis of the presence or absence of the applied data flow and whether the applied data flow includes identification information of the source network.

Dependencies are inferred from the claim text.