METHOD FOR CONSTRUCTING VIRTUAL PRIVATE NETWORK, METHOD FOR PACKET FORWARDING, AND GATEWAY APPARATUS USING THE METHODS

摘要

Disclosed are a method for constructing a virtual private network, a method for packet forwarding, and a gateway apparatus using the methods. A method for constructing a virtual private network, according to an example embodiment of the present invention, may comprise receiving a first tunnel connection request from the lower gateway, and transmitting a permission message for the first tunnel connection request to the lower gateway; transmitting a second tunnel connection request to the upper gateway, and receiving a permission message for the second tunnel connection request from the upper gateway; and generating a second tunnel, and storing information about the second tunnel in a tunnel routing table.

主权项

1. A method for constructing a virtual private network, performed in a gateway connected to an upper gateway and a lower gateway, the method comprising:
receiving a connection request of a first tunnel from the lower gateway, and transmitting a permission message for the connection request of the first tunnel to the lower gateway; transmitting a connection request of a second tunnel to the upper gateway, and receiving a permission message for the connection request of the second tunnel from the upper gateway; and generating the second tunnel, and storing information about the second tunnel in a tunnel routing table.