Method and device for address allocation

Abstract

The present invention discloses a method and device for address allocation, the method comprises: a virtual domain is recorded on the BRAS, and the corresponding relationship between the virtual domain and one or more real domains is recorded; When requesting a device address message, determine the virtual domain corresponding to the terminal device, and select a real domain from the real domains corresponding to the virtual domain; the BRAS determines the IP address pool corresponding to the real domain, and selects a real domain from the real domain corresponding to the virtual domain; Select an unused IP address from the IP address pool, and allocate the IP address to the terminal device. In the embodiment of the present invention, the number of usable IP addresses can be expanded without modifying any configuration on the AAA server and without affecting current users, so as to prevent terminal devices from being unable to assign IP addresses.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular, to a method and device for address allocation. Background technique [0002] With the continuous development of the Internet, people's demand for communication has gradually extended from low-speed services such as traditional telephone, fax, and telegram to broadband services such as high-speed Internet access, video telephony, and video-on-demand. Higher and higher. At the same time, more and more users are accessing the metropolitan area network, and the user's service requirements are also expanding day by day. The broadband metropolitan area network is facing a development trend towards a multi-service bearer network. In this case, in order to effectively manage and control the services of access users, prevent access users from occupying network resources such as network bandwidth and IP addresses without any restriction and control, and enable various s...

AI Technical Summary

Problems solved by technology

Due to the limited number of IP addresses in the IP address pool, some terminal devices cannot be assigned IP addresses in the IP address pool, and these terminal devices cannot be assigned IP addresses.

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