Network system establishing communication by use of connectionless protocol

Abstract

Equipmentincludes a service provision functional unit, an information processing unit, a correspondence relation collecting functional unit, a correspondence relation storage unit, and a service request functional unit. The information processing unithas one or more objects, and provides control information to the service provision functional unitby executing the object upon receiving a service request including a specific identifier. The correspondence relation collecting unitcollects a correspondence relation between the specific identifier of the object and address information of the equipmentfrom the equipment. The correspondence relation storage unitstores the correspondence relation between the specific identifier and the address information, which is collected by the correspondence relation collecting unit. While the address information corresponding to the specific identifier used for the service request is stored in the correspondence relation storage unit, the service request functional unitmakes the service request on the basis of the address information. As a result, a resource necessary for communication by the use of association between the equipmentand the specific identifier can be reduced.