Patent ID: 10581830

Abstract:
A monitoring device manages information regarding a first reception port and information regarding a second reception port in regard to an IP address of a self-device. The monitoring device issues a route certificate corresponding to a first server certificate and a route certificate corresponding to a second server certificate for realizing communication of relatively lower security strength than the first server certificate, and associates the first server certificate with the first reception port and associates the second server certificate with the second reception port. The monitoring device decides, as data for each reception port, a connection URL and a port number of each reception port, transmits the route certificate corresponding to the first server certificate and data for the first reception port to the network device. When authentication in the network device fails as a result of the transmission of the route certificate corresponding to the first server certificate and the data for the first reception port, transmit the route certificate corresponding to the second server certificate and data for the second reception port to the network device.