Method for sharing user IP address pool

Abstract

This invention provides a method for realizing share of user IP address pool among multiple IP-DSLAM by spreading DHCP first of all allocating virtual LAN between IP-DSLAM, setting up IP address share relations when re-starting IP-DSLAM devices, sending IP address bulletin reports definitely and processing the address application and release request among them. Any cut-in user of A or B of IP-SLAM device can get IP address(either A or B) to log-on-to-the net so long as there are addresses to be allocated in A or B address pools.

Description

Technical field [0001] The invention belongs to the field of computer network communication, and in particular relates to a method for realizing user IP address pool sharing among multiple IP-DSLAMs by extending DHCP. Background technique [0002] With the development of network technology, broadband access has become a dominant user access mode at present. Broadband access generally includes ADSL, VDSL, Ethernet and other methods. According to the needs of operators, all these methods require broadband dial-up and authentication processes. When the authentication phase is completed, an IP address allocation process is usually required, with the purpose of assigning an IP to the client so that the end user can communicate. At present, most IP-DSLAMs have integrated basic authentication (such as 802.1x authentication, PPPoE authentication and termination) and IP address allocation and management functions into the DSLAM equipment. In this way, the upper-level equipment can ...

AI Technical Summary

Problems solved by technology

[0004] At present, IP-DSLAM assigns IP through the DHCP protocol, which has the following defects: (1) addresses cannot be shared, resulting in waste; (2) address pools are scattered and not easy to manage

Assume that two IP-DSLAM devices A and B have built-in IP address pools; in this way, users connected to A can only be allocated addresses from A's address pool, and users connected to B can only be allocated addresses from B's address pool; In this way, in order to meet the needs of fully configured users to go online at the same time, both A and B must have a large address pool, but when there are not many users actually connected, it will cause a waste of precious IP resources; The situation of not being able to access the Internet without obtaining an IP; at the same time, because the address pool is scattered, it causes great inconvenience in management and hinders the network administrator from planning the entire network

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