Method for triggering user IP address assignment

Abstract

The invention discloses a user IP address dynamically allocating method, analyzing non-DHCP message of user, triggering the allocation of DHCP service end on the user IP address according to the analysis result. It does not need the participation of the user in the course of user obtaining IP address, the client end only sends APR message and obtains the response, thus able to access to the network; by the ARP message or ordinary IP message, it triggers to allocate IP address to the user, can fast resume the user connection, and increases satisfactoriness of the user and simultaneously reduces maintenance cost of the operator. For PPPOE dial-in user, the operator can use DHCP server to allocate the IP address to the user, and need not singly manage and reduces operating cost and it is convenient to manage.

Description

technical field [0001] The invention relates to a method for allocating dynamic user IP addresses, specifically a method for triggering address allocation to users by using a non-dynamic host configuration protocol (Dynamic Host Configuration Protocol, DHCP for short) message, and belongs to the technical field of computer networks. Background technique [0002] As we all know, manually configuring the host Internet Protocol (IP) address is a time-consuming and tedious task, and managing the static IP address assigned to the host is a difficult task, especially when the host IP address needs to be changed frequently when. DHCP can be used to solve the above problems; that is, by configuring a DHCP server in a network segment, receiving and processing the DHCP request messages of all clients in the same subnet, and finding an address pool from the address pool configured in the DHCP server. The free IP is assigned to the user, and some parameter information (for example: dom...

AI Technical Summary

Problems solved by technology

[0052] However, one of the defects of the prior art is: due to reasons such as link or operating system, sometimes, although the user's PC still has a legal IP address, the access device (BAS) thinks that the user has gone offline, and deletes the IP address. In this case, unless the user actively releases the IP on the PC through manual participation, and then re-initiates the DHCP process to trigger the access device to re-establish the connection for the user, the user will not be able to access the network

[0053] The second defect of the prior art is: the operator cannot use the existing DHCP server to assign addresses to PPPOE users, and it is difficult to uniformly assign and manage the addresses of PPPOE dial-up users and DHCP online users

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