An Internet of Things, IoT, network system, comprising: a first physical network that includes first and second data transmission nodes, the first data transmission nodes including first sensors and the second data transmission node including second sensors, the first and second sensors (600a, 600b) installed by respective first and second carriers, the first physical network deploying an edge node at an edge of the first physical network, the edge node deployed at the edge of the first physical network being configured to refer to identification number of the first and second sensors (600a, 600b), specify a first data forwarding path and a second data forwarding path to which the first and second sensors (600a, 600b) belongs, and add a tunnel header, and the edge node being configured to enable the first data transmission node to transmit first data used in a first service and the second data transmission node to transmit second data used in a second service, the first data being collected from the first data transmission node and the second data being collected from the second data transmission node so as to separately handle data of multiple carriers from one another; and a second physical network that includes first and second apparatuses, the second physical network deploying an edge node at an edge of the second physical network through which the first data and second data is received when transmitted from the first physical network to the second physical network, the first apparatus being adapted to handle the first data and the second apparatus being adapted to handle the second data so as to separately handle data of multiple carriers; and a control apparatus configured to generate the first data forwarding path for transmitting data of the first data transmission node and the second data forwarding path for transmitting data of the second data transmission node between the edge node deployed at the edge of the first physical network and the edge node deployed at the edge of the second physical network, the first data being transmitted from the first data transmission node of the first physical network via the first data forwarding path to the first apparatus of the second physical network and the second data being transmitted from the second data transmission node of the first physical network via the second data forwarding path to the second apparatus of the second physical network so as to separately handle data of multiple carriers; the control apparatus configured to receive the identification number of the first and second sensors (600a, 600b) from the edge node in a case where the identification numbers of the first and second sensors (600a, 600b) are unknown, and transmit a result of whether or not data from the sensors (600a, 600b) should be transmitted to the second physical network. a first physical network that includes first and second data transmission nodes, the first data transmission nodes including first sensors and the second data transmission node including second sensors, the first and second sensors (600a, 600b) installed by respective first and second carriers, the first physical network deploying an edge node at an edge of the first physical network, the edge node deployed at the edge of the first physical network being configured to refer to identification number of the first and second sensors (600a, 600b), specify a first data forwarding path and a second data forwarding path to which the first and second sensors (600a, 600b) belongs, and add a tunnel header, and the edge node being configured to enable the first data transmission node to transmit first data used in a first service and the second data transmission node to transmit second data used in a second service, the first data being collected from the first data transmission node and the second data being collected from the second data transmission node so as to separately handle data of multiple carriers from one another; and a second physical network that includes first and second apparatuses, the second physical network deploying an edge node at an edge of the second physical network through which the first data and second data is received when transmitted from the first physical network to the second physical network, the first apparatus being adapted to handle the first data and the second apparatus being adapted to handle the second data so as to separately handle data of multiple carriers; and a control apparatus configured to generate the first data forwarding path for transmitting data of the first data transmission node and the second data forwarding path for transmitting data of the second data transmission node between the edge node deployed at the edge of the first physical network and the edge node deployed at the edge of the second physical network, the first data being transmitted from the first data transmission node of the first physical network via the first data forwarding path to the first apparatus of the second physical network and the second data being transmitted from the second data transmission node of the first physical network via the second data forwarding path to the second apparatus of the second physical network so as to separately handle data of multiple carriers; the control apparatus configured to receive the identification number of the first and second sensors (600a, 600b) from the edge node in a case where the identification numbers of the first and second sensors (600a, 600b) are unknown, and transmit a result of whether or not data from the sensors (600a, 600b) should be transmitted to the second physical network.