| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a main apparatus address limit notification system for improving safety. SOLUTION: The main apparatus address limit notification system comprises a main apparatus, at least two slave terminals for acquiring the IP address of the main apparatus when connection is started, an address management means having a DHCP function, and a transmission line for connecting them. In the main apparatus address limitation notification system, a terminal identification information authentication section is provided. At the terminal identification information authentication section, terminal identification information is added to a DHCP message from the slave terminal in the start of the connection to the address management means, and at the same time the terminal identification information that is received by the address management means is authenticated. The address management means should have a main apparatus IP address information notification means for notifying main apparatus IP address information merely to an authenticated terminal.</p> |
