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IP address assignment method and device and IP address acquisition method and device

一种IP地址、分配方法的技术，应用在通信领域，能够解决扩展性小、约束性大等问题，达到应用范围广、降低运维成本、降低部署难度的效果

Active Publication Date: 2013-01-16
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides an IP address allocation and acquisition method and device. By informing the client that the authentication domain of the user carried by it has changed, the client automatically obtains a new IP address, thereby solving the problem of the existing technology. , the problem of small scalability

Method used

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  • IP address assignment method and device and IP address acquisition method and device
  • IP address assignment method and device and IP address acquisition method and device
  • IP address assignment method and device and IP address acquisition method and device

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Embodiment Construction

[0053] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments . Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0054] First, an application scenario of an IP address allocation method provided by an embodiment of the present invention is introduced. Such as figure 1 As shown, it is a schematic diagram of the system architecture of the embodiment of the present invention.

[0055] The IP address allocation method provided by the embodiment of the present invention is applied to an L3NAC system, and the L3NAC system includes: a client 11 , a switch ...

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Abstract

The invention relates to an IP (Internet Protocol) address assignment method and device and an IP address acquisition method and device. The IP address assignment method comprises the following steps: an authentication request message is sent to a client at pre-set time intervals; a responding message sent by the client and carrying user authentication information loaded by the client and is received; an authentication message is sent to a sever according to the responding message; an authentication reply message sent by the server and carrying user authentication domain information which is authorized to the user by the server is received; whether the user authentication domain is changed or not is judged according to the authentication reply message; and if the user authentication domain is changed, an authentication domain change message is sent to the client according to the authentication reply message so as to enable the client to re-obtain an IP address.

Description

technical field [0001] The present invention relates to the communication field, in particular to an IP address allocation and acquisition method and device. Background technique [0002] In the network admission control (Network Admission Control, NAC) system of the communication layer L3 based on IP address forwarding, the switch assigns the corresponding IP address to the client according to the authentication domain planned by the authentication server for the user. When the authentication domain planned by the authentication server for the user changes, the IP address of the client does not change. At this time, the user cannot access the resources of the previous authentication domain or the resources of the current authentication domain. Only after the address is released and the IP address is re-applied can the resources of the current authentication domain be accessed. [0003] In the prior art, before the authentication server switches the authentication domain of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/12
CPCH04L63/0892H04L61/203H04L61/2061H04L61/2053H04L61/503H04L61/5053H04L61/5061H04L63/08
Inventor 陈曼娜
Owner HUAWEI TECH CO LTD
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