SYSTEM FOR DIVIDING NETWORK USING VIRTUAL PRIVATE NETWORK AND METHOD THEREFOR

摘要

The present invention relates to a technology for enabling each user's PC to transmit a packet separately through an internal network or external network by means of a virtual private network almost without changing the existing network environment in a network division system for physically dividing PCs into a group for accessing the internal network and a group for accessing the external network. To this end, the present invention does not allow the connection between an internal network PC and an external network PC through a network division apparatus, does not allow the internal network PC to connect to an encoded gateway, and does not allow the external network to connect through the encoded gateway to the internal network, but enables the internal network PC to connect to the internal network, and the external network PC to connect through a virtual private network to the external network.

主权项

1. A network division system using a virtual private network, comprising:
an external network PC and internal network PC connected to a plurality of network division apparatuses; a virtual private network and internal network connected to the network division apparatuses; and an external network, wherein the network division system extracts the destination IP addresses of packets transmitted or received to the internal network PC or the internal network and the destination IP addresses of packets transmitted or received to the external network PC or the virtual private network, and blocks a part of the packets transmitted or received to the internal network PC or the internal network and a part of the packets transmitted or received to the external network PC or the virtual private network, based on the extracted IP addresses.