Method and device for detecting illegal network access equipment
A kind of equipment and illegal technology, which is applied in the detection method and device field of illegal network access equipment, can solve the problems of wasting power resources, violating equipment listing rules, etc., and achieve the effect of fast detection speed
Active Publication Date: 2020-11-20
ULTRAPOWER SOFTWARE
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[0005] However, in the local area network system, there are often some client hosts that perform device power-on operations before an IP address is assigned, which not only wastes power resources, but also violates the law in terms of data center management. Device listing rules
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[0058] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.
[0059] Aiming at the problem that some client hosts in the local area network system of the prior art perform device power-on operation before an IP address is assigned, the embodiment of the present invention provides a detection method for illegal network access devices. The process of responding to the IP address allocation request based on DHCP is recorded in the server’s DHCP messages messa...
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The present invention relates to a method and device for detecting illegal network access equipment. The method first continuously extracts the physical address of the first client from the row information containing the first preset keyword in the DHCP message log of the server and stores it in the specified database, and extracting the second client physical address from the row information containing the second preset keyword; then, judging the physical address of the first client stored in the database after it is stored in the database Whether the same client physical address can be matched from the extracted second client physical address within a preset time; if not, the client host corresponding to the first client physical address is determined as an illegal device. According to the different characteristics of the DHCP response process corresponding to the illegal network access and legal network access equipment, the present invention detects and analyzes the DHCP message log in real time to realize the detection of the illegal network access equipment, and the method can be synchronized with the DHCP response process, and has a fast detection speed The advantages.
Description
technical field [0001] The invention relates to the field of communication technology, in particular to a method and device for detecting illegal network access equipment. Background technique [0002] With the rapid advancement of communication technology, the degree of informatization in various fields of society is gradually improving, and more and more enterprises, government departments and military institutions have begun to establish their own LAN systems. [0003] In the above local area network system, in order to centrally manage and assign IP addresses, DHCP (Dynamic Host Configuration Protocol, Dynamic Host Configuration Protocol) is usually used to assign IP addresses to network clients. Specifically, DHCP uses the client / server mode, and the network administrator establishes one or more DHCP servers, and the TCP / IP configuration information that can be provided to the client is stored in these servers, wherein the configuration information includes the effectiv...
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IPC IPC(8): H04L29/06H04L29/12
CPCH04L61/10H04L63/0876H04L61/5014
Inventor 杨杰王庆磊韩炳海
Owner ULTRAPOWER SOFTWARE