Network security device, network management method, and non-transitory computer-readable medium

Network security device, network management method, and non-transitory computer-readable medium

There is provided a network security device comprising: a processor programmed to: identify a terminal for which communication is to be blocked; detect Dynamic Host Configuration Protocol (DHCP) request information which is requesting a DHCP server to allocate an IP address; send out a message meani...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Nakazono, Toru, Kishida, Shinya, Kadoya, Natsuki
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRIC DIGITAL DATA PROCESSING
ELECTRICITY
PHYSICS
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Beschreibung
Zusammenfassung:There is provided a network security device comprising: a processor programmed to: identify a terminal for which communication is to be blocked; detect Dynamic Host Configuration Protocol (DHCP) request information which is requesting a DHCP server to allocate an IP address; send out a message meaning that the IP address requested by the DHCP request information is unusable; and transmit, if the detected DHCP request information is sent by the identified terminal, DHCP release information for releasing the IP address requested by this DHCP request information to the DHCP server.