Method of isolating user in radio local network

A wireless local area network and user technology, applied in the direction of data exchange, digital transmission system, electrical components, etc. through path configuration, can solve the problem of not having to modify the firmware of the IEEE802.11MAC chip, and not wanting the IEEE802.11MAC chip to delete the relay and forwarding.

Inactive Publication Date: 2003-04-30
北京朗通环球科技有限公司
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Since the relay forwarding function of the wireless access point (AP) 1 is a standard function of IEEE802.11, and is implemented in the firmware (Firmware) of the IEEE802.11 MAC chip, the current main wireless access point (AP) 1...

Method used

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  • Method of isolating user in radio local network
  • Method of isolating user in radio local network
  • Method of isolating user in radio local network

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Embodiment Construction

[0025] Embodiments of the present invention will be further explained in detail below in conjunction with the accompanying drawings.

[0026] Such as Figure 6 As shown, in step 100, in order not to allow the firmware of the IEEE 802.11 MAC chip to directly forward the communication data packets between the wireless users in the basic service set BSS, it is necessary to set up in the driver program of the IEEE 802.11 MAC chip to make all the packets conform to the 802.11 protocol All data packets are sent to the bridge module of the wireless access point AP for processing, instead of being directly forwarded by the 802.11 MAC firmware using the original method. At present, this function can be set in the drivers of all IEEE 802.11 MAC chips, and all wireless access points AP must also adopt a wireless transparent bridge module, so this guarantees the premise of the realization of the invention.

[0027] In step 110, each data packet received by the bridge module of the wirele...

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Abstract

A method to isolate the clients within the local area network transfers all the radio data packets that are realized for relay transmission originally by the firmwrok of IEEE802, 11 MAC to the radio mail bridge module of radio call-in point, and the judging the received source address and destination MAC address information of the data packet. According to the items of mail bridge retransmitting table and the items of MAC data packet filtering table, whether the data packet is retransmitted or discarded, these items are decided to realize the isolation for the radio clients within the same distributed system DS. The method uses a radio fire wall mechanism so that it not only can be used for the isolation of the radio client, but also can be used to define the incoming filtering and to retransmitt the MAC data packet by the method of rule matching and processing.

Description

technical field [0001] The invention mainly relates to the communication field of a wireless local area network (WLAN) based on the IEEE 802.11 standard, in particular to a method for isolating users in the wireless local area network (WLAN). Background technique [0002] In the current application system using WLAN technology access and coverage based on IEEE 802.11 standard, the typical configuration form is composed of wireless access point AP (Access Point) 1 and user site 2 to form a basic service set BSS (Basic Service Set) wireless coverage units such as figure 1 As shown, a basic service set (BSS) is formed. At this time, the communication between multiple wireless user stations 2 needs to be relayed and forwarded through a wireless access point (AP) 1 . Then, on the basis of the basic service set BSS, multiple basic service set BSS can be connected into a distribution system DS (Distribution System) with a larger coverage through wired or wireless means, such as ...

Claims

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Application Information

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IPC IPC(8): H04L9/00H04L12/28
Inventor 王炜魏庆新石磊
Owner 北京朗通环球科技有限公司
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