A system and working method for assigning ip addresses

Abstract

A system for assigning IP addresses and its working method. In addition to a DHCP server and a client, the system is additionally equipped with a DHCP networking mode that can execute IP address for the client by itself or / and in cooperation with a third-party system. A policy server that assigns decision-making functions. The system not only allocates IP addresses according to the information in the DHCP message, but also enables the policy server to use its third-party system interface to implement time policies, corresponding policies for different identities, and third-party systems based on auxiliary information outside the DHCP message. Multiple strategies for object status to decide the allocation of IP addresses. It greatly expands the flexibility of DHCP address allocation management, fully meets the different needs of actual application scenarios and improves information security. Another feature is the decoupling and separation of the data interaction and address allocation strategy of the DHCP protocol, making the two operations of DHCP address allocation and decision-making independent, reducing the workload of the DHCP server, and fully improving its service performance and operation processing flexibility.

Description

technical field [0001] The invention relates to an IP address allocation system and its working method, belonging to the technical field of network system management and control. Background technique [0002] IP is the abbreviation of the English acronym for Internet Protocol (Internet Protocol), and the Chinese abbreviation is "Internet Association". As the name implies, the protocol for interconnection between networks is a protocol designed for computer networks to communicate with each other. In the Internet, IP is a set of rules that enable all computer networks connected to the Internet to communicate with each other, and it specifies the rules that computers should follow when communicating on the Internet. Computer systems produced by any manufacturer can be interconnected with the Internet as long as they comply with the IP protocol. IP addresses are unique and can be divided into different categories according to the different nature of users. [0003] At presen...

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Problems solved by technology

[0013] Based on the above analysis, the current IP address allocation method in the IP network has the following disadvantages: the DHCP server needs to be responsible for both the calculation of the IP address and the assignment of the IP address according to the address allocation strategy, and the service performance and flexibility of the DHCP server will be affected.

In addition, the DHCP server can only allocate IP addresses based on the information in the discovery message sent by the DHCP client, and the IP address allocation policies that can be set are very limited, which cannot fully meet the needs of the actual network environment

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