| 摘要 |
An IP address assigning method for assigning a fixed address to a user terminal apparatus through a network in a system for remote accessing to the network to which a tunneling apparatus belongs from the user terminal apparatus. The user terminal apparatus connected to a first network requests a setting of a communication tunnel to the tunneling apparatus for remote accessing a second network. The tunneling apparatus receiving the request sends a DHCP message including a MAC address assigned to a physical NIC of the user terminal apparatus to a DHCP server connected to the network. The DHCP server sends a DHCP message including a fixed IP address corresponding to a preset MAC address. The tunneling apparatus assigns the IP address included in the received DHCP message to the user terminal apparatus.
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