Patent ID: 7924448

Claim:
A remote managing system comprising: a data communication apparatus configured to acquire status information from a managed apparatus which is to be remotely managed, and to manage the status information therein; and a central managing apparatus configured to communicate with the data communication apparatus via a communication line; said central managing apparatus comprising: a parameter sending section configured to send a plurality of sets of parameters, which are related to an access from the data communication apparatus to the central managing apparatus, to the data communication apparatus; an identification information adding section configured to add identification information to each of the plurality of sets of parameters which are to be sent by the parameter sending section, the identification information identifying the sets of parameters that successfully connect to the central managing apparatus from the data communication apparatus and enabling discrimination of a log of parameter changes made over time; a test communication request section configured to send a test communication request to the data communication apparatus; a storage section configured to store on a storage unit of the central managing apparatus, when a test communication is received from the data communication apparatus, a set of parameters used in the test communication and the identification information corresponding to the set of parameters used in the test communication as a log of parameter changes made over time; and a resetting section configured to reset, when the test communication is received from the data communication apparatus, the parameters at the data communication apparatus related to the identification information stored in the storage unit based on the identification information received in the test communication, said data communication apparatus comprising: a parameter set section configured to set the plurality of sets of parameters which are added with the identification information and are sent from the parameter sending section of the central managing apparatus; a test communication section configured to make a test communication with the central managing apparatus in response to the test communication request, the test communication being based on the plurality of sets of parameters set by the parameter set section and including the identification information added with the parameters sent from the parameter sending section; a judging section configured to judge which sets of parameters successfully connect to the central managing apparatus by checking the storage unit; and a setting section configured to set, with respect to the data communication apparatus, each set of parameters that successfully connects to the central managing apparatus.