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IP address allocation method and system for wireless network

An IP address, wireless network technology, applied in transmission systems, wireless communications, public keys for secure communications, etc.

Active Publication Date: 2019-05-07
ALIBABA GRP HLDG LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem existing in the related technology is that when the client accesses the wireless network or switches the wireless network, the IP address acquisition or contract renewal starts only after the connection of the wireless link layer, and it takes a long time to establish an effective network.

Method used

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  • IP address allocation method and system for wireless network
  • IP address allocation method and system for wireless network
  • IP address allocation method and system for wireless network

Examples

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Embodiment Construction

[0024] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention. On the contrary, the embodiments of the present invention include all changes, modifications and equivalents coming within the spirit and scope of the appended claims.

[0025] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral Ground connection; it can be mechanical connection or electrical connection; it can be direct conne...

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PUM

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Abstract

The invention proposes a wireless network IP address allocation method and system. The method includes: generating a random number of the authenticator and sending it to the client; receiving the client random number, MIC and DHCP request information sent by the client; checking the MIC, and determining the response information of the DHCP request information, and sending the client Send whether to install the encryption / integrity key and response information; receive the confirmation information sent by the client to complete the shared key authentication with the client, and communicate with the client according to the IP address. The IP address allocation method of the wireless network in the embodiment of the present invention reduces the time required when the client accesses or switches the wireless network, and further reduces the impact time on the application layer when the client accesses or switches the wireless network.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a wireless network IP address allocation method, system, authentication end and client end. Background technique [0002] In wireless networks such as Wi-Fi (Wireless-Fidelity), for the sake of security and convenience, WPA (Wi-Fi Protected Access) based on PSK (Pre-shared key, pre-shared key) is usually used to protect the wireless network security system). [0003] However, when accessing such a wireless network, the authenticator, such as the wireless access point AP (Wireless AccessPoint) and the client, such as the station, pass the EAPOL-key (EAP (Extensible Authentication Protocol, Extensible Authentication Protocol) over LAN (Local Area Network, LAN) key) package four-way handshake for authentication and key negotiation, and, after the key negotiation is completed, if the client is set to obtain a dynamic IP, it needs to pass the DHCP (Dynamic Host...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W76/10H04L29/12H04W12/06H04W12/041H04W12/069H04W12/106
CPCH04W12/06H04L61/5007H04L61/5014H04L9/30H04L9/32
Inventor 朴云
Owner ALIBABA GRP HLDG LTD