| 摘要 |
A computer system connected to a network includes a terminal apparatus configured to detect an access destination on the network, acquire a destination data of the access destination, and generate a frame having the destination data for the access destination; and a monitoring apparatus configured to hold the destination data, and to produce at least one unicast frame to the access destination based on the destination data of the frame received from the terminal apparatus. The monitoring apparatus issues an access destination registration request to the terminal apparatus, and acquires the destination data from the terminal apparatus. The terminal apparatus holds a data indicative of reception of the access destination registration request from the monitor apparatus and notifies the destination data to the monitoring apparatus if the data indicative of the reception of the access destination registration request is stored when receiving a reply from the access destination.
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