CN109068338B - System and method for detecting and processing compatibility of three-address wireless distributed system - Google Patents

System and method for detecting and processing compatibility of three-address wireless distributed system Download PDF

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Publication number
CN109068338B
CN109068338B CN201810636550.0A CN201810636550A CN109068338B CN 109068338 B CN109068338 B CN 109068338B CN 201810636550 A CN201810636550 A CN 201810636550A CN 109068338 B CN109068338 B CN 109068338B
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wireless
packet
compatibility
expander
access point
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CN109068338A (en
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彭贵
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Shenzhen Kinetic Energy Wireless Media Co ltd
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Shenzhen Kinetic Energy Wireless Media Co ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/26—Cell enhancers or enhancement, e.g. for tunnels, building shadow
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/50—Address allocation
    • H04L61/5007—Internet protocol [IP] addresses
    • H04L61/5014—Internet protocol [IP] addresses using dynamic host configuration protocol [DHCP] or bootstrap protocol [BOOTP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2101/00—Indexing scheme associated with group H04L61/00
    • H04L2101/60—Types of network addresses
    • H04L2101/677—Multiple interfaces, e.g. multihomed nodes

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention discloses a system and a method for detecting and processing the compatibility of a three-address wireless distribution system. The invention discloses a system for detecting and processing the compatibility of a three-address wireless distribution system, which comprises: the judging module is used for judging whether the wireless expander and the AP have compatibility or not; and the processing module is used for starting a data packet proxy forwarding mechanism when the wireless expander and the AP have compatibility. The invention discloses a method for detecting and processing three-address WDS compatibility, which comprises the following steps: s1, detecting whether the wireless expander and the AP have compatibility; and S2, when the wireless extender and the AP have compatibility, starting a data packet proxy forwarding mechanism. The invention has a scheme for detecting the compatibility of the three-address WDS, and when the wireless expander has the compatibility with the AP, the problem of the compatibility of the three-address WDS is solved by adopting a data packet proxy forwarding scheme, so that the wireless expander is better compatible with the APs of other brands.

Description

System and method for detecting and processing compatibility of three-address wireless distributed system
Technical Field
The invention relates to the technical field of electric communication, in particular to a system and a method for detecting and processing three-address WDS compatibility.
Background
Router products are increasingly abundant in the market, users are concerned about the stability and coverage range of a Wireless local area network (WIFI) of a router, and the coverage range of the WIFI (Wireless local area network) is limited because the emission power of domestic electronic products cannot exceed 20dBm according to national regulations.
A wireless extender (repeater), also called a repeater, can extend a wireless signal coverage of a wireless Access Point (AP) to enhance the effect of a network signal, and is widely used in home wireless internet.
Aiming at the large market demand, a plurality of routing manufacturers release Wireless extender products, but due to the difference of the designs of different manufacturers, the Wireless extender relays other brands of APs (Wireless Access points) and has a plurality of compatibility problems.
There are two main types of problems with the use of three-address WDS: 1. when the DHCP Discover Client MAC (application layer MAC) and the Source MAC (two-layer MAC) are inconsistent, the AP (Wireless Access Point) does not reply the DHCP Offer;
2. when the wireless client renews the lease of an IP Address (Internet Protocol Address) in a broadcast mode, the front-end AP entity replies DHCP ACK.
The DHCP used is Dynamic Host Configuration Protocol, and a Dynamic Host Configuration Protocol; WDS is as follows: wireless Distribution System, Wireless Distribution System; ACK is: acknowledgement, i.e. is an Acknowledgement character; MAC is Media Access Control, Media Access Control.
A method and apparatus for location setting of a wireless signal expander as disclosed in the patent publication CN105959963A, the method comprising: respectively detecting wireless communication performance parameters of a router and terminal equipment needing to be connected with the router; and converting the wireless communication performance parameters of the router and the terminal equipment to obtain position adjustment prompt information of the wireless signal expander according to the detected wireless communication performance parameters of the router and the detected wireless communication performance parameters of the terminal equipment, and prompting or adjusting the position according to the position adjustment prompt information. The invention focuses on finding the most suitable position for placing the wireless signal expander, but completely relates to the problem that the wireless signal expander is not compatible with the AP. Therefore, when the wireless extension in the prior art performs three-address and four-address detection, there are no detection method and processing scheme for the compatibility of three-address communication.
Therefore, how to solve the compatibility of three-address communication and make the wireless extender better compatible with other brands of APs becomes a problem to be solved by the present invention.
Disclosure of Invention
In view of the above technical problems in the prior art, the present invention provides a system and method for detecting and processing three-address WDS compatibility, which enables a wireless extender to be better compatible with APs of other brands by detecting the compatibility between the wireless extender and the AP when there is a compatibility problem between the wireless extender and the AP.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
a system for probing and handling three-address WDS compatibility, comprising:
the judging module is used for judging whether the compatibility problem exists between the wireless expander and the AP or not;
and the processing module is used for starting a data packet proxy forwarding mechanism when the compatibility problem exists between the wireless expander and the AP.
Preferably, the system further comprises: and the acquisition module is used for acquiring the IP address of the AP and starting the DHCP Server function of the wireless expander.
Preferably, the packet forwarding mechanism includes: and replacing the Source MAC of the wireless Client connected with the wireless expander with the Client MAC of the wireless expander, and replacing the Destination MAC of the wireless Client connected with the wireless expander with the AP MAC data packet for forwarding.
Preferably, the judging module includes: and the detection unit is used for detecting whether the AP replies a DHCP Discover packet with inconsistent clientMAC and Source MAC or not and sending a broadcast DHCP Request renewal detection AP to reply whether the DHCP ACK packet is a broadcast packet or not.
Preferably, the determining module further includes: and the identification unit is used for judging that the wireless expander and the AP have compatibility problems if the detection unit does not receive the DHCP Offer when detecting whether the AP replies the DHCP Discover packet with inconsistent Client MAC and Source MAC or not and/or the DHCPACK packet is a broadcast packet.
A method of probing and handling three-address WDS compatibility, comprising:
s1, detecting whether the compatibility problem exists between the wireless expander and the AP;
and S2, when the wireless extender and the AP have compatibility problem, starting a data packet proxy forwarding mechanism.
Preferably, the method further includes, before step S2: s3, obtaining the IP address of the AP, and starting the DHCP Server function of the wireless extender.
Preferably, the step S2 specifically includes: and replacing the Source MAC of the wireless Client connected with the wireless expander with the Client MAC of the wireless expander, and replacing the Destination MAC of the wireless Client connected with the wireless expander with the AP MAC data packet for forwarding.
Preferably, the step S1 further includes:
s11, detecting whether the AP replies a DHCP Discover packet with inconsistent Client MAC and Source MAC;
s12, if the DHCP Offer is not received, it is determined that the wireless extender and the AP have a compatibility problem.
Preferably, the step S1 further includes:
s13, sending a broadcast DHCP Request renewal detection AP to reply whether a DHCP ACK packet is a broadcast packet or not;
and S14, if the DHCP ACK packet is a broadcast packet, judging that the wireless extender and the AP have the compatibility problem.
The technical scheme provided by the invention can have the following beneficial effects:
1. the invention overcomes the problem that the wireless expander is incompatible with other brands of APs when the AP adopts a three-address communication address format in the prior art.
2. The invention automatically detects the compatibility of the three-address WDS by detecting whether the AP replies the DHCP Discover packet with inconsistent Client MAC and Source MAC and sending whether the broadcast DHCP Request renew detection AP replies the DHCP ACK packet as a broadcast packet.
3. When the compatibility problem of the wireless expander and the AP is detected, the invention adopts a data packet proxy forwarding scheme to process the compatibility problem of the three-address WDS, and can improve the compatibility of the wireless expander and other brands of AP products.
Drawings
Fig. 1 is a system configuration diagram for detecting and processing three-address WDS compatibility according to embodiment 1 of the present invention;
fig. 2 is a system structural diagram for detecting and processing three-address WDS compatibility according to embodiment 2 of the present invention;
fig. 3 is a flowchart of a method for detecting and processing three-address WDS compatibility according to embodiment 3 of the present invention.
Detailed Description
The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the invention are shown. This invention may, however, be embodied in many different forms and should not be construed as limited to the specific embodiments set forth herein. Rather, these embodiments are provided to convey the scope of the invention to those skilled in the art.
Unless otherwise defined, terms (including technical and scientific terms) used herein should be understood to have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Moreover, it will be understood that terms used herein should be interpreted as having a meaning that is consistent with their meaning in the context of this specification and the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Example 1
The technical solution of the present invention is described in detail below with reference to the accompanying drawings.
The present embodiment provides a system for detecting and processing three-address WDS compatibility, as shown in fig. 1, including: the specific operation process of the scheme is as follows:
a determining module 100, configured to determine whether there is a compatibility problem between the wireless extender and the AP;
before the compatibility is judged, whether the AP adopts three-address communication needs to be detected.
Three-address WDS, i.e. using three address fields on the WDS link.
WDS is short for wireless distributed systems, and aims to concatenate several Access Points (APs) so that Wi-Fi signals cover a larger area.
The scheme for detecting whether the wireless extender and the AP have the compatibility problem needs to be based on the AP using three-address communication.
After the AP uses the three-address communication, the wireless extender detects whether the DHCP Server of the AP is started or not. If the AP is not opened, the expander cannot detect the AP, or the usable AP is not available around the AP, and the expander cannot be connected with the AP. If the surrounding has an opened AP DHCP Server, the scheme of the invention is executed.
The specific operation process of detecting the AP is as follows: the wireless extender detects whether the AP DHCPServer is started or not by sending a DHCP Discover packet, and if the wireless extender receives the DHCP Offer replied by the AP, the wireless extender can be connected with the AP.
Then, it starts to detect whether there is a three-address WDS compatibility problem between the wireless expander and the AP.
The processing module 200 is configured to start a packet proxy forwarding mechanism when there is a compatibility problem between the wireless extender and the AP.
The processing module 200 is communicatively connected to the determining module 100, and when the determining module 100 determines that there is a problem of compatibility between the wireless extender and the AP, the determining module 100 transmits the message to the processing module 200.
When receiving the compatibility problem between the wireless expander and the AP, the processing module 200 starts a packet proxy forwarding mechanism to solve the problem of three-address WDS compatibility.
The packet forwarding mechanism specifically includes: and replacing the Source MAC of the wireless Client connected with the wireless expander with the Client MAC of the wireless expander, and replacing the Destination MAC of the wireless Client connected with the wireless expander with the AP MAC data packet for forwarding.
After the expander starts a data packet proxy forwarding mechanism, the Source MAC of the wireless Client connected with the expander is replaced by the Client MAC of the expander, and the Destination MAC is replaced by the front-end AP MAC data packet and then is forwarded.
As long as the determining module 100 determines that there is a compatibility problem between the wireless expander and the AP, the processing module 200 will start the packet proxy forwarding mechanism no matter what kind of situation causes the three-address WDS compatibility.
The embodiment solves the problems of the detection method and the processing scheme for the compatibility problem of the three-address communication in the background technology, and achieves the purpose of the invention.
In summary, in the system for detecting and processing compatibility of a three-address WDS provided in this embodiment, when the wireless extender has a compatibility problem with the AP, the packet proxy forwarding scheme is adopted to handle the problem, so that the compatibility of the wireless extender with other brands of AP products can be improved.
Example 2
The present embodiment is substantially the same as embodiment 1, and includes a determining module 100 and a processing module 200 in embodiment 1, where the difference between the present embodiment and embodiment 1 is that the present embodiment further includes: as shown in fig. 2, the specific operation process of the embodiment is as follows:
the determining module 100 determines whether there is a compatibility problem between the wireless extender and the AP through the detecting unit 110 and the identifying unit 120, and the specific scheme is as follows:
the detecting unit 110 is configured to detect whether the AP replies a DHCPDiscover packet with inconsistent Client MAC and Source MAC, and send a broadcast DHCP Request renewal detection AP replies that a DHCP ACK packet is a broadcast packet.
When the wireless expander relays APs of other brands, compatibility problems occur, and the three-address WDS mainly has two problems: 1. when the DHCP Discover Client MAC (application layer MAC) and the Source MAC (two-layer MAC) are inconsistent, the AP does not reply the DHCP Offer; 2. and when the wireless client renews the lease of the IP in a broadcast mode, the front-end AP entity replies DHCP ACK.
The scheme of the embodiment mainly aims at the detection of the two situations.
The wireless extender changes the DHCP Discover MAC, and the detecting unit 110 detects whether the AP replies a DHCP Discover packet in which the Client MAC (application layer MAC) and the Source MAC (two-layer MAC) are inconsistent; then, the probe unit 110 sends a DHCP ACK packet returned by the broadcast DHCP Request lease renew probe front-end AP.
The identifying unit 120, if the detecting unit 110 detects whether the AP replies a DHCP Discover packet with inconsistent Client MAC and Source MAC, and/or the DHCP ACK packet is a broadcast packet, the identifying unit 120 determines that there is a compatibility problem between the wireless extender and the AP.
And if the wireless extender does not receive the DHCP Offer, the wireless extender judges that the wireless extender has the compatibility problem with the AP, and the wireless extender starts the proxy forwarding of the data packet without other detection.
If the wireless extender receives the DHCP Offer, the AP replies, and the above-mentioned problem 1 does not exist, and at this time, the wireless extender does not have the problem of compatibility with the AP.
The next step is to check if the second problem mentioned above exists.
Firstly, whether the received DHCP ACK packet is a unicast packet or a broadcast packet is analyzed, and if the DHCP ACK packet is the unicast packet, the wireless extender and the AP do not have the compatibility problem; and if the DHCP ACK packet is a broadcast packet, judging that the wireless extender and the AP have the compatibility problem, and starting proxy forwarding of the data packet by the wireless extender.
The obtaining module 300 is configured to obtain an IP address of an AP and start a DHCP Server function of the wireless extender.
When the identification module 120 determines that there is a compatibility problem between the wireless extender and the AP, that is, the intelligent terminal (e.g., a mobile phone) cannot connect to the local area network of the AP through the wireless extender, the wireless extender acquires the IP address of the AP and starts its DHCPServer function to ensure that the intelligent terminal connected to the wireless extender can connect to the AP through the IP address, and then the intelligent terminal can normally use the network of the AP through the wireless extender in combination with a packet forwarding mechanism of the wireless extender.
Correspondingly, the invention also provides a wireless extender, and the embedded device comprises: the system for probing and handling three-address WDS compatibility of embodiment 1 and embodiment 2.
For a specific implementation manner and a working flow of the wireless expander of the present invention, reference may be made to detailed descriptions of a system for detecting and processing three-address WDS compatibility in embodiment 1 and embodiment 2, which are not described herein again.
In summary, in the system for detecting and processing compatibility of a three-address WDS provided in this embodiment, compatibility of a three-address WDS is automatically detected by detecting whether an AP replies a DHCP Discover packet in which a Client MAC and a Source MAC are inconsistent, and by sending a broadcast DHCPRequest lease renewal detection AP replies that a DHCP ACK packet is a broadcast packet.
Example 3
The embodiment provides a method for detecting and processing three-address WDS compatibility, as shown in fig. 3, a specific process may include the following steps:
and S1, detecting whether the compatibility problem exists between the wireless expander and the AP.
Before performing step S1 in this embodiment, it needs to be detected whether the AP employs three-address communication.
Three-address WDS, i.e. using three address fields on the WDS link.
WDS is short for wireless distributed systems, and aims to concatenate several Access Points (APs) so that Wi-Fi signals cover a larger area.
The scheme for detecting whether the wireless extender and the AP have the compatibility problem needs to be based on the AP using three-address communication.
After the AP uses the three-address communication, the wireless extender detects whether the DHCP Server of the AP is started or not. If the AP is not opened, the expander cannot detect the AP, or the usable AP is not available around the AP, and the expander cannot be connected with the AP. If the surrounding has an opened AP DHCP Server, the scheme of the invention is executed.
The specific operation process of detecting the AP is as follows: the wireless extender detects whether the AP DHCPServer is started or not by sending a DHCP Discover packet, and if the wireless extender receives the DHCP Offer replied by the AP, the wireless extender can be connected with the AP.
Then, it starts to detect whether there is a three-address WDS compatibility problem between the wireless expander and the AP.
The step S1 of detecting whether the three-address WDS has a compatibility problem specifically includes the following steps:
s11, detecting whether the AP replies a DHCP Discover packet with inconsistent Client MAC and Source MAC;
s12, if the DHCP Offer is not received, it is determined that the wireless extender and the AP have a compatibility problem.
The wireless expander changes the DHCP Discover MAC and detects whether the AP replies a DHCP Discover packet with inconsistent Client MAC (application layer MAC) and Source MAC (two-layer MAC);
if the wireless extender does not receive the DHCP Offer when detecting whether the AP replies the DHCP Discover packet with inconsistent Client MAC and Source MAC, the wireless extender judges that the wireless extender and the AP have compatibility problems and does not need to detect other compatibility problems.
If the wireless extender receives the DHCP Offer, it indicates that the AP replies, and at this time, the wireless extender does not have compatibility with the AP.
And entering next detection to eliminate other situations of whether compatibility exists or not.
The step S1 further includes:
s13, sending a broadcast DHCP Request renewal detection AP to reply whether a DHCP ACK packet is a broadcast packet or not;
and S14, if the DHCP ACK packet is a broadcast packet, judging that the wireless extender and the AP have the compatibility problem.
And the wireless extender sends a DHCP ACK packet replied by the broadcasting DHCP Request lease renewal detection front-end AP. Firstly, whether the received DHCP ACK packet is a unicast packet or a broadcast packet is analyzed, and if the DHCP ACK packet is the unicast packet, the wireless extender and the AP do not have the compatibility problem; and if the DHCP ACK packet is a broadcast packet, judging that the wireless extender and the AP have the compatibility problem.
And S2, when the wireless extender and the AP have compatibility problem, starting a data packet proxy forwarding mechanism.
When the compatibility problem between the wireless expander and the AP is obtained according to the scheme, the wireless expander starts a data packet proxy forwarding mechanism so as to solve the problem of three-address WDS compatibility.
The step S2 specifically includes: and replacing the Source MAC of the wireless Client connected with the wireless expander with the Client MAC of the wireless expander, and replacing the Destination MAC of the wireless Client connected with the wireless expander with the APMAC data packet for forwarding.
After the expander starts a data packet proxy forwarding mechanism, the Source MAC of the wireless Client connected with the expander is replaced by the Client MAC of the expander, and the Destination MAC is replaced by the front-end AP MAC data packet and then is forwarded.
Before the step S2, the method further includes: s3, obtaining the IP address of the AP, and starting the DHCP Server function of the wireless extender.
When the compatibility problem between the wireless expander and the AP is judged, namely an intelligent terminal (such as a mobile phone) cannot be connected with a local area network of the AP through the wireless expander, the wireless expander acquires an IP address of the AP and starts a self DHCP Server function to ensure that the intelligent terminal connected with the wireless expander can be connected with the AP through the IP address, and then the intelligent terminal can normally use the network of the AP through the wireless expander by combining a data packet forwarding mechanism of the wireless expander.
In summary, according to the method for detecting and processing compatibility of a three-address WDS provided in this embodiment, when a wireless extender has a compatibility problem with an AP, the method of the present invention uses a packet proxy forwarding scheme to handle the problem, so as to improve the compatibility of the wireless extender with other brands of AP products. The invention solves the problems of the prior art that a detection method and a processing scheme are not available for the compatibility problem of three-address communication, and realizes the aim of the invention.
Other embodiments of the present disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

Claims (4)

1. A system for detecting and handling compatibility of a three-address wireless distributed system, comprising:
the judging module is used for judging whether the compatibility problem exists between the wireless expander and the wireless access point;
the judging module comprises: the detection unit is used for detecting whether the wireless access point replies a dynamic host configuration protocol discovery message packet with inconsistent application layer MAC and source MAC or not and sending a broadcast dynamic host configuration protocol request to renew the lease of the dynamic host configuration protocol confirmation packet replied by the detection wireless access point and determining whether the packet is a broadcast packet or not;
the judging module further comprises: the identification unit is used for judging that the compatibility problem exists between the wireless expander and the wireless access point if the detection unit detects whether the wireless access point replies a dynamic host configuration protocol discovery message packet with inconsistent application layer MAC and source MAC and does not receive a message provided by the dynamic host configuration protocol when the detection unit detects that the message packet is not found by the dynamic host configuration protocol and/or the dynamic host configuration protocol confirms that the packet is a broadcast packet;
the processing module is used for starting a data packet proxy forwarding mechanism when the compatibility problem exists between the wireless expander and the wireless access point; the packet forwarding mechanism comprises: and the source MAC of the wireless client connected with the wireless extender is replaced by the application layer MAC of the wireless extender, and the target MAC of the wireless client connected with the wireless extender is replaced by the MAC packet of the wireless access point and then forwarded.
2. The system for detecting and handling three address wireless distributed system compatibility according to claim 1, further comprising: and the acquisition module is used for acquiring the Internet protocol address of the wireless access point and starting the dynamic host configuration protocol server function of the wireless expander.
3. A method for detecting and handling three-address wireless distributed system compatibility, comprising:
s1, detecting whether the compatibility problem exists between the wireless expander and the wireless access point;
the step S1 includes:
s11, detecting whether the wireless access point replies a dynamic host configuration protocol discovery packet with inconsistent application layer MAC and source MAC;
s12, if the message provided by the dynamic host configuration protocol is not received, the compatibility problem between the wireless expander and the wireless access point is judged;
the step S1 further includes:
s13, sending a broadcast dynamic host configuration protocol request to renew lease and detect whether the dynamic host configuration protocol confirmation packet replied by the wireless access point is a broadcast packet;
s14, if the dynamic host configuration protocol confirms that the packet is a broadcast packet, determining that the compatibility problem exists between the wireless expander and the wireless access point;
s2, when the compatibility problem exists between the wireless expander and the wireless access point, starting a data packet proxy forwarding mechanism; the step S2 specifically includes: and the source MAC of the wireless client connected with the wireless extender is replaced by the application layer MAC of the wireless extender, and the target MAC of the wireless client connected with the wireless extender is replaced by the MAC packet of the wireless access point and then forwarded.
4. The method for detecting and processing three-address wireless distribution system compatibility according to claim 3, further comprising before said step S2: and S3, acquiring the Internet protocol address of the wireless access point, and starting the dynamic host configuration protocol server function of the wireless expander.
CN201810636550.0A 2018-06-20 2018-06-20 System and method for detecting and processing compatibility of three-address wireless distributed system Expired - Fee Related CN109068338B (en)

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基于WLAN的无线Mesh网络系统设计与实现;张树琪;《中国优秀博硕士学位论文全文数据库 (硕士)信息科技辑（月刊）》;20070615;全文 *

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