US 12,652,248 B2 · Address detection method and apparatus

Abstract

This application provides an address detection method and a related apparatus. The method includes: receiving a first internet protocol (internet protocol, IP) address from a first device, where the first IP address is a to-be-detected IP address of the first device; determining a first information table, where the first information table includes an IP address of one or more devices, and the one or more devices and a first apparatus are at a media access control layer of a same network; determining a second information table based on the first information table; and detecting whether a second IP address that is the same as the first IP address exists in the second information table, where a first media access control address corresponding to the first IP address is different from a second media access control address corresponding to the second IP address.

Claims20

Dependent claims

An address detection method performed by a first apparatus, comprising:

receiving a first internet protocol (IP) address from a first device, wherein the first IP address is an IP address of the first device to be detected;
determining a first information table comprising an IP address of one or more devices, wherein the one or more devices and the first apparatus are at a media access control (MAC) layer of a same network;
determining a second information table based on the first information table;
detecting whether a second IP address the same as the first IP address exists in the second information table, wherein a first media access control address corresponding to the first IP address is different from a second media access control address corresponding to the second IP address;
and
when a state of an entry corresponding to the second IP address in the first information table is a reachable state, sending an address detection response message to the first device.

3 more elements

An apparatus, comprising:

a processor;
and
a memory coupled to the processor to store instructions, which when executed by the processor, cause the apparatus to:
receive a first internet protocol (IP) address from a first device, wherein the first IP address is an IP address of the first device to be detected;
determine a first information table comprising an IP address of one or more devices, wherein the one or more devices and a first apparatus are at a media access control (MAC) layer of a same network;
determine a second information table based on the first information table;
and
detect whether a second IP address the same as the first IP address exists in the second information table, wherein a first media access control address corresponding to the first IP address is different from a second media access control address corresponding to the second IP address;
and
when a state of an entry corresponding to the second IP address in the first information table is a reachable state, sending an address detection response message to the first device.

7 more elements

Dependencies are inferred from the claim text.

Address detection method and apparatus

Life of this patent

Address detection method and apparatus

Life of this patent

Abstract

Claims20