| 摘要 |
In a network device, a user-interface unit creates a user interface including an address input part to which an address or an address range is inputted, an allow/deny selection part to which a choice of whether access to the network device from an external device, corresponding to the address or the address range inputted to the address input part, is allowed or denied is inputted, and a switch part to which a choice of whether an address portion corresponding to a varying part of a prefix received from a network is ignored is inputted. A packet-filtering unit determines allowance or denial of reception of an incoming packet according to the choice inputted by a user through the user interface.
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