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US 11,108,738 B2Granted
Communication apparatus and communication system
AssigneeAlaxala Networks Corporation
InventorsKazuaki Honma, Keigo Uchizumi
Life of this patent
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Abstract
A whitelist generation possibility/impossibility determination unit transmits a signal for permitting generation of a whitelist to a whitelist generating unit, in a case where an IP address corresponding to a source MAC address stored in a protocol information table matches the extracted source IP address, and in a case where an IP address corresponding to a destination MAC address stored in the protocol information table matches the extracted destination IP address.
Claims13
A communication apparatus for relaying a packet received according to a whitelist including a MAC address and an IP address, comprising:
- a protocol information table that stores the MAC address and the IP address in association with teach other;
- a whitelist storage memory that stores the whitelist;
- and
- a processor configured to:
- generate the whitelist;
- determine whether or not generation of the whitelist is possible,
- wherein the processor extracts a source MAC address, a source IP address, a destination MAC address, and a destination IP address, from contents in communication between a server and a client terminal according to a protocol for dynamically assigning the IP address, and
- wherein, in a case where the protocol information table is search based on the extracted source MAC address, and the IP address corresponding to the source MAC address stored in the protocol information table matches the extracted source IP address, and
- in case where the protocol information table is searched based on the extracted destination MAC address, and the IP address corresponding to the destination MAC address stored in the protocol information table matches the extracted destination IP address,
- the processor transmits a signal for permitting generation of the whitelist.
7 more elements
A communication apparatus for relaying a packet received according to a whitelist including a MAC address and an IP address, comprising:
- a protocol information table that stores the MAC address and the IP address in association with each other;
- a whitelist storage memory that stores the whitelist;
- and
- a processor configured to:
- generate the whitelist;
- determine whether or not generation of the whitelist is possible,
- wherein the processor extracts a source MAC address, a source IP address, a destination MAC address, and a destination IP address, from contents in communication between a server and a client terminal according to a protocol for dynamically assigning the IP address, and
- wherein, in a case where the protocol information table is searched based on the extracted source IP address, and the MAC address corresponding to the source IP address stored in the protocol information table matches the extracted source MAC address, and
- in a case where the protocol information table is searched based on the extracted destination IP address, and the MAC address corresponding to the destination IP address stored in the protocol information table matches the extracted destination MAC address,
- the processor transmits a signal from permitting generation of the whitelist.
7 more elements
A communication system, comprising:
- a communication apparatus for relaying a packet received according to a whitelist including a MAC address and an IP address, the communication apparatus comprising:
- a protocol information table that stores the MAC address and the IP address in association with each other;
- a whitelist storage memory that stores the whitelist;
- and
- a processor configured to:
- generate the whitelist;
- determine whether or not generation of the whitelist is possible,
- wherein the processor extracts a source MAC address, a source IP address, a destination MAC address, and a destination IP address, from contents in communication between a server and a client terminal according to a protocol for dynamically assigning the IP address, and
- wherein, in a case where the protocol information table is searched based on the extracted source MAC address, and the IP address corresponding to the source MAC address stored in the protocol information table matches the extracted source IP address, and
- in case where the protocol information table is searched based on the extracted destination MAC address, and the IP address corresponding to the destination MAC address stored in the protocol information table matches the extracted destination IP address,
- the processor transmits a signal for permitting generation of the whitelist;
- and
- the server that performs dynamic assignment of the IP address to the client terminal.
10 more elements
Dependencies are inferred from the claim text.