Method, device and system for address allocation of public networks

A public network address and network address translation technology, applied in the field of public network address allocation, can solve the problems of low utilization rate and waste of public network addresses, and achieve the effect of improving utilization rate and avoiding waste.
CN102594933AActive Publication Date: 2012-07-18HUAWEI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUAWEI TECH CO LTD
Publication Date
2012-07-18

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Abstract

The invention provides a method for address allocation of public networks, which comprises that a carrier-grade network (CGN) address translation device receives online messages of users and judges whether idle public network addresses exist in a public network address pool; if no idle public network address exists in the public network address pool or the quantity of the idle public network addresses is less than that of a presupposed threshold value of the idle public network addresses, the CGN device constructs and sends dynamic host configuration protocol (DHCP) requests to a DHCP server to apply for a public network address set; and the CGN device allocates a first public network address in the public network address set to the users. The invention further discloses a device and system for address allocation of public networks. According to the method, the device and a system for address allocation of public networks, unified management and allocation of public network addresses of the CGN device can be achieved and the utilization rate of the public network addresses of the CGN device can be improved so as to avoid waste of public network addresses.
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Description

technical field

[0001] The embodiments of the present invention relate to the technical field of communications, and in particular to a method, device and system for public network address allocation. Background technique

[0002] The carrier-grade network address translation (Carrier-Grade Network Address Translation, CGN) equipment is located within the operator, at the boundary between the public network and the private network, and is used to provide high-performance Internet Protocol Version 4 (Internet Protocol Version 4, IPv4 ) translation from private addresses to public addresses, while enabling private network users to access the public network, it can effectively save public network IPv4 addresses. By using CGN technology, the speed of IPv4 address consumption can be delayed, so as to provide a real transition to Internet version 6 (Internet Protocol Version 6, IPv6) get ready. Currently, CGN equipment is based on the CGN board for public network address manageme...

Claims

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