A smart border router includes a traffic analyzer for receiving a traffic control policy including a network's routing policy and QoS policy from a router provided on a border of a network, and analyzing the same; a flow translator for, when receiving a plurality of flows from a specific network, translating a received flow to satisfy the traffic control policy of a destination network to which the flow will be transmitted; and a flow information controller for transmitting the translated flow to the destination network through a flow control protocol.