IP (Internet Protocol) address allocation method, device and system

Abstract

The invention discloses an IP (Internet Protocol) address allocation method, device and system, belonging to the technical field of communication and being used for improving the IP address allocation efficiency and the IP address utilization ratio. The IP address allocation method comprises the following steps of: receiving an IP address application request from a DHCP (Dynamic Host Configuration Protocol) client or a PPPOE (Point-to-Point Protocol over Ethernet) client; determining an IP address which is not allocated currently, from a preallocated IP address pool which is independent of a DHCP server and a PPPOE server; and allocating the determined IP address to the DHCP client or PPPOE client corresponding to the IP address application request.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to an Internet Protocol (IP, Internet Protocol) address allocation method, device and system. Background technique [0002] Dynamic Host Configuration Protocol (DHCP) is a TCP / IP standard that simplifies host IP configuration management. DHCP includes DHCP Server (DHCP Server) and DHCP Client (DHCP Client). The main function of DHCP Server is to manage Assign IP address and enable some configuration of DHCP Client. [0003] Point-to-Point Protocol Over Ethernet (PPPOE), which enables Ethernet hosts to connect to a remote access concentrator through a simple bridge device. Through the PPPOE protocol, the remote access device can control and charge each access user. PPPOE also includes PPPOE server (PPPOE Server) and PPPOE client (PPPOE Client). [0004] It can be seen that both DHCP and PPPOE use the client-server model to dynamically assign IP addresses to clients....

AI Technical Summary

Problems solved by technology

[0009] At present, DHCP Server and PPPOE Server allocate IP addresses in their respective IP address pools. Since the number of DHCP Client users and PPPOE Client users cannot be predicted, if the server (DHCP Server and PPPOE Server) IP address pool size ( That is, the range of IP addresses) is not suitable, there will be a situation where the IP address of one end (DHCP Server or PPPOE Server) is tight and the IP address of the other end (PPPOE Server or DHCP Server) is idle, resulting in a lot of waste of IP addresses

[0010] Moreover, the existing DHCP Server and PPPOE Server use independent and different algorithms to allocate IP addresses according to their respective needs. The IP addresses corresponding to the DHCP Server and PPPOE Server cannot be planned uniformly, and the efficiency of IP address allocation is low.

In addition, from the perspective of software maintenance corresponding to the algorithm, it is necessary to maintain two or more distribution strategies, which increases the burden of software maintenance

[0011] To sum up, the existing methods for assigning IP addresses to DHCP clients and PPPOE clients will cause waste of IP addresses, and the efficiency of assigning IP addresses is also low.

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