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Method for obtaining mac address, gateway device, network authentication device and network system

A MAC address and gateway device technology, applied in the field of network systems, can solve problems such as unreachable, network authentication equipment cannot accurately identify the terminal MAC address, etc., to achieve the effect of ensuring accuracy and obtaining simple and efficient methods

Active Publication Date: 2019-09-13
MAIPU COMM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, when the terminal device communicates with the network authentication device, the MAC address of the gateway device is encapsulated in the packet after crossing the three-layer network. Neither the ARP packet nor the DHCP packet sent by the terminal device can reach the network authentication device. The authentication device cannot accurately identify the terminal MAC address

Method used

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  • Method for obtaining mac address, gateway device, network authentication device and network system
  • Method for obtaining mac address, gateway device, network authentication device and network system
  • Method for obtaining mac address, gateway device, network authentication device and network system

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Embodiment Construction

[0045] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0046] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0047] see figure 1 , ...

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Abstract

Embodiments of the present invention provide a method for acquiring a MAC address, a gateway device, a network authentication device, and a network system. The specific implementation principle of the method is: the gateway device detects the DHCP Offer message sent to the terminal device, and obtains the IP address and the MAC address of the terminal device according to the DHCP Offer message; The IP address and the MAC address generate an ARP message, and send the ARP message to the network authentication device; the network authentication device analyzes the received ARP message to obtain the MAC address of the terminal device. The present invention can simply and efficiently obtain the MAC address of the terminal equipment across three layers.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a method for acquiring a MAC address, a gateway device, a network authentication device and a network system. Background technique [0002] In the Portal authentication system, when the network authentication device and the terminal device are on different Layer 2 networks, the DHCP server is the gateway device between the terminal device and the network authentication device. At this time, when the terminal device communicates with the network authentication device, the MAC address of the gateway device is encapsulated in the packet after crossing the three-layer network. Neither the ARP packet nor the DHCP packet sent by the terminal device can reach the network authentication device. The authentication device cannot accurately identify the terminal MAC address. Contents of the invention [0003] In order to overcome the above-mentioned deficiencies in the prio...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/12H04L29/06
CPCH04L61/103H04L63/0876H04L2101/622
Inventor 黄梦弦
Owner MAIPU COMM TECH CO LTD