A system for dhcp protocol auxiliary billing and its auxiliary billing method

Abstract

A system for auxiliary billing of DHCP protocol and its auxiliary billing method, the system is provided with: an authentication client, a NAS device, a Portal server and an AAA server; the innovation is that it also includes structural improvement to increase the auxiliary billing function Auxiliary billing DHCP server. The auxiliary billing DHCP server is equipped with four modules of DHCP protocol processing, analysis, linkage and recording, which are used to provide management services for the allocation, lease and release of IP addresses based on the DHCP protocol for the authentication client: analyze the authentication client's IP address leasing and release events, judge the change of the IP address renter, and interact with the Portal server, AAA server and NAS device respectively to realize the linkage operation of related events and billing. In the system of the present invention, the authentication client interacts with network elements such as NAS devices and billing gateways respectively. When the authentication client does not actively log out, the billing of the authentication client and the network access authorization are terminated, which solves the problem that the network authorization may be compromised. Use problems, and billing is accurate.

Description

technical field [0001] The invention relates to a dynamic host configuration protocol DHCP (Dynamic Host Configuration Protocol) auxiliary charging system and an auxiliary charging method thereof, which belong to the technical field of network security management. Background technique [0002] The DHCP protocol is a communication protocol that enables network administrators to centrally manage and automatically assign Internet Protocol (IP) addresses. In an IP network, each device connected to the network needs to be assigned a unique IP address. The DHCP protocol enables network administrators to manage the allocation of IP addresses at a central node. When a DHCP client needs to obtain an IP address, it first needs to find a DHCP server in order to receive information such as the IP address, gateway, Domain Name System DNS (Domain Name System) and other network configuration parameters assigned by the DHCP server to the DHCP client. [0003] In the existing IP network, us...

AI Technical Summary

Problems solved by technology

This causes the network access authorization of the original authentication client to be fraudulently used

At the same time, the Internet traffic of the newly authenticated client that uses the fake IP address may also be credited to the original user account, resulting in billing deviations, seriously affecting the accuracy of billing, and causing losses to user interests

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