| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To detect an improper change not adequate for elements such as a client PC constituting a network for preventing instability of the system, leakage of information, and reduction in network system reliability due to a change in a network configuration. <P>SOLUTION: When a configuration element such as the client PC on the network is changed, network information due to the change is compared with initial detection information (S803, S804), and when an abnormal condition is detected, a function to the network by the configuration element is prohibited if necessary (S809, S810). <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
