| 摘要 |
A communication method for a device in a network system and a system for managing network devices are disclosed. The communication method for a device in a network system includes connecting a management server that manages at least one device in an internal network, the at least one device, and a designated device with one another through a firewall, the internal network, and an external network; the designated device maintaining a connection with the management server; and if a message for requesting a connection with a target device among the at least one device is received by the designated device from the management server, the designated device forwarding the received message to the target device. According to this method, the management server can connect and communicate with managed devices, whenever necessary, by making the designated device connected to the network continuously maintain the connection with the management server.
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