| 摘要 |
A network communication device including a plurality of first network interfaces connected with different networks; a communication controller that controls sending and receiving packets via one of the plurality of first network interfaces; an interface selector that selects, based on a specified first condition, one of the plurality of first network interfaces as a candidate interface for an active network interface; and a switching determiner that determines approval or disapproval of a change of the active network interface from a previously selected network interface to the candidate interface, based on a specified second condition regarding validity of a logical connection via the previously selected network interface, when one of the plurality of first network interfaces different from the previously selected network interface is newly selected as the candidate interface and the previously selected network interface is the current active network interface. |
