CN105933950A - Responding method and device of probe request - Google Patents
Responding method and device of probe request Download PDFInfo
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- CN105933950A CN105933950A CN201610224422.6A CN201610224422A CN105933950A CN 105933950 A CN105933950 A CN 105933950A CN 201610224422 A CN201610224422 A CN 201610224422A CN 105933950 A CN105933950 A CN 105933950A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
- H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/12—Detection or prevention of fraud
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
Abstract
The invention provides a responding method and device of a probe request. The responding method includes the following steps that: a probe request sent by a wireless client end is received; whether the probe request is required to be responded is judged according to specific conditions, namely, whether a probe response is required to be sent to the wireless client end is judged; when the probe request is a broadcast probe request, the specific conditions include at least one condition selected from the client end list of local equipment, the load of the local equipment, the black list and white list of the local equipment, and the signal strength of the probe request; when the probe request is a unicast probe request, the specific conditions include at least one condition selected from the load of the local equipment, the black list and white list of the local equipment, and the signal intensity of the probe request; and if the probe request is required to be responded, the probe request is responded, and the probe response is sent to the wireless client end.
Description
Technical field
The application relates to wireless communication technology field, particularly to response method and the dress of a kind of probe request
Put.
Background technology
WLAN (Wireless Local Area Network, WLAN) technology is the current communications field
One of focus, compare with wired, the startup of WLAN and implement relatively easy, maintenance with low cost,
As long as typically lay one or more access point (Access Point, AP) just can set up cover whole building or
The LAN in area.
In a wlan, wireless client (such as, the terminal unit such as mobile phone or panel computer) needs constantly
Be scanned, to find AP around and to understand the situation of AP around, thus, set up with AP
Wireless connections (that is, wireless client accesses AP), the WLAN provided by AP accesses the Internet
(Internet).Wherein, in scanning process, wireless client can be to use appointing in following two mode
One or both combination, is scanned the AP of surrounding.
Mode one: wireless client sends SSID (Service Set Identifier, services set mark with broadcast mode
Know) probe request that value is null (empty) (Probe Request) of field, i.e. broadcast Probe Request；
After AP receives this broadcast Probe Request, can be with mode of unicast echo probe response frame (Probe
Response)；Wireless client, after receiving the Probe Response of multiple AP response, selects to send out
That AP going out the maximum Probe Response of signal intensity accesses.
Mode two: wireless client sends the value of ssid field for specifying the Probe of SSID with broadcast mode
Request, i.e. clean culture Probe Request；After AP receives this clean culture Probe Request, it is judged that should
The value of the ssid field carried in clean culture Probe Request is the most identical with the SSID of this equipment, if identical,
Then respond Probe Response with mode of unicast, otherwise, do not respond；Wireless client receives this
After Probe Response, access the AP sending this Probe Response.
In above-mentioned scanning process, arbitrary Probe Request that wireless client sends, especially broadcasts
Probe Request, can cause one or more AP of surrounding to respond Probe Response, thus take
Substantial amounts of interface-free resources.Particularly accessing under environment in high density, it is arbitrary that wireless client sends
Probe Request may obtain the response of ten the most several AP, the Probe of these AP response
The transmission of Response occupies substantial amounts of interface-free resources, causes the waste of interface-free resources.
Summary of the invention
In view of this, the application provides response method and the device of a kind of probe request.
Specifically, the application is achieved by the following technical solution:
On the one hand, it is provided that the response method of a kind of probe request, the method is applied to AP, the method bag
Include:
Receive the Probe Request that wireless client is sent；
According to specified conditions, it may be judged whether be required for this Probe Request and respond Probe Response；
Wherein, when this Probe Request is broadcast Probe Request, specified conditions include at least one of:
The client side list of this equipment, the load of this equipment, the black and white lists of this equipment, this Probe Request's
Signal intensity；When this Probe Request is clean culture Probe Request, specified conditions include following at least
One of: the load of this equipment, the black and white lists of this equipment, the signal intensity of this Probe Request；
If desired respond, then respond Probe Response to wireless client.
On the other hand, additionally providing the responding device of a kind of probe request, this device is applied in AP,
This device includes:
Receiver module, for receiving the Probe Request that wireless client is sent；
First judge module, for receiver module receive Probe Request that wireless client sends it
After, according to specified conditions, it may be judged whether be required for this Probe Request and respond Probe Response；
Wherein, when this Probe Request is broadcast Probe Request, specified conditions include at least one of:
The client side list of this equipment, the load of this equipment, the black and white lists of this equipment, this Probe Request's
Signal intensity；When this Probe Request is clean culture Probe Request, specified conditions include following at least
One of: the load of this equipment, the black and white lists of this equipment, the signal intensity of this Probe Request；
Respond module, if judging to need response for the first judge module, then responds to wireless client
Probe Response。
By the above technical scheme of the application, after receiving broadcast Probe Request, AP will not be straight
Meet response Probe Response, but according to the client side list on this equipment, the load of this equipment, originally set
Standby upper black and white lists, this broadcast Probe Request signal intensity in the combination of any one or more,
Decide whether respond Probe Response, only determine need response when, just can respond Probe
Response, thus, decrease the quantity of Probe Response, save interface-free resources.
It addition, when AP receives clean culture Probe Request, determining this clean culture Probe Request
In the SSID that carries identical with the SSID of this equipment after, will not directly in response to Probe Response, and
It is further according to the black and white lists on the load of this equipment, this equipment, the letter of this clean culture Probe Request
The combination of any one or more in number intensity, decides whether to respond Probe Response, is only determining
The when of needing response, just can respond Probe Response, thus, decrease the number of Probe Response
Amount, has saved interface-free resources.
Accompanying drawing explanation
Fig. 1 is the flow chart of the response method of a kind of probe request shown in the application one exemplary embodiment；
Fig. 2 is that the AP shown in an exemplary embodiment updates visitor according to the clean culture Probe Request received
The flow chart of family end list；
Fig. 3 is the AP shown in an exemplary embodiment according to the client side list broadcast Probe to receiving
Request carries out the flow chart responded；
Fig. 4 is that the load according to this equipment of the AP shown in an exemplary embodiment is to the clean culture Probe received
Request carries out the flow chart responded；
Fig. 5 is the clean culture to receiving of the black and white lists according to this equipment of the AP shown in an exemplary embodiment
Probe Request carries out the flow chart responded；
Fig. 6 is the signal according to the clean culture Probe Request received of the AP shown in an exemplary embodiment
The flow chart that this clean culture Probe Request is responded by intensity；
Fig. 7 is that the AP shown in an exemplary embodiment updates visitor according to the clean culture Probe Request received
Family end list, and the flow chart this clean culture Probe Request responded according to the load of this equipment；
Fig. 8 is the load according to client side list He this equipment shown in an exemplary embodiment, to receiving
Broadcast Probe Request carry out the flow chart that responds；
Fig. 9 is the AP shown in an exemplary embodiment according to the load of this equipment and black and white lists, to receiving
Clean culture Probe Request carry out the flow chart that responds；
Figure 10 is that the AP shown in an exemplary embodiment updates visitor according to the clean culture Probe Request received
Family end list, and according to the load of this equipment and the signal intensity of this clean culture Probe Request, to this clean culture
Probe Request carries out the flow chart responded；
Figure 11 is that the AP shown in an exemplary embodiment is according to client side list, the load of this equipment and reception
The signal intensity of the clean culture Probe Request arrived, the flow chart that this clean culture Probe Request is responded；
Figure 12 is that the AP shown in an exemplary embodiment according to load, the black and white lists of this equipment and receives
The signal intensity of clean culture Probe Request, the flow chart that this clean culture Probe Request is responded；
Figure 13 is the hardware structure schematic diagram of the AP shown in an exemplary embodiment；
Figure 14 is a kind of structural representation of the responding device of the probe request shown in an exemplary embodiment；
Figure 15 is the another kind of structural representation of the responding device of the probe request shown in an exemplary embodiment
Figure.
Detailed description of the invention
Here will illustrate exemplary embodiment in detail, its example represents in the accompanying drawings.Following retouches
Stating when relating to accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represents same or analogous key element.
Embodiment described in following exemplary embodiment does not represent all embodiment party consistent with the application
Formula.On the contrary, they only with describe in detail in appended claims, the application some in terms of mutually one
The example of the apparatus and method caused.
It is only merely for describing the purpose of specific embodiment at term used in this application, and is not intended to be limiting this
Application." a kind of ", " described " of singulative used in the application and appended claims
" it is somebody's turn to do " be also intended to include most form, unless context clearly shows that other implications.It is also understood that
Term "and/or" used herein refer to and comprise any of one or more project of listing being associated or
Likely combine.
Although should be appreciated that may use term first, second, third, etc. to describe various letter in the application
Breath, but these information should not necessarily be limited by these terms.These terms are only used for same type of information district each other
Separately.Such as, in the case of without departing from the application scope, the first information can also be referred to as the second information,
Similarly, the second information can also be referred to as the first information.Depend on linguistic context, word as used in this
" if " can be construed to " ... time " or " when ... time " or " in response to determining ".
In order to make it easy to understand, first the relevant technical terms in WLAN is explained.
AP: be used for disposing hot spot region, provides WLAN wirelessly access to wireless client, concrete,
AP provides wireless client to the bridging functionality of WLAN, carries out nothing between wireless client and WLAN
Line is to wired and wired to wireless frame conversion.
SSID (Service Set Identifier, service set): Internet service provider is provided by AP
The title of WLAN service, the connected region that wireless client can cover at the WLAN with same SSID
Move freely in territory and keep connecting.
It is a kind of for detecting the claim frame around having which AP that Probe Request: wireless client sends,
Probe Request carries ssid field.
The value of broadcast Probe Request:SSID field is set to the Probe Request of Null.
The value of clean culture Probe Request:SSID field is set to specify the Probe Request of SSID.
The response of the Probe Request that wireless client is sent by Probe Response:AP, mono-by AP
Broadcast to wireless client, concrete, when AP receives broadcast Probe Request, respond Probe
Response, when AP receives clean culture Probe Request, if carrying in this clean culture Probe Request
The value of ssid field identical with the SSID of this equipment, then response Probe Response.
In prior art, arbitrary Probe Request that wireless client sends can cause of surrounding
Or multiple AP responds Probe Response, thus occupy substantial amounts of interface-free resources, cause interface-free resources
Waste.In order to solve the above-mentioned problems in the prior art, the application following example provide
The response method of a kind of probe request, and a kind of device that can apply the method.
As it is shown in figure 1, the response method of the probe request of the embodiment of the present application comprises the following steps:
Step S101, AP receives the Probe Request that wireless client is sent；
Step S102, AP is according to specified conditions, it may be judged whether is required for this Probe Request and responds Probe
Response, if desired, then perform step S103, otherwise, exit this flow process；
Wherein, when this Probe Request be broadcast Probe Request time, these specified conditions include with down to
One of few: the client side list of this equipment, the load of this equipment, the black and white lists of this equipment, this Probe
The signal intensity of Request；
When this Probe Request is clean culture Probe Request, these specified conditions include at least one of:
The load of this equipment, the black and white lists of this equipment, the signal intensity of this Probe Request.
Step S103, AP responds Probe Response to this wireless client.
Therefore, after receiving broadcast Probe Request, AP will not be directly in response to Probe
Response, but according to the black and white name on the client side list on this equipment, the load of this equipment, this equipment
The combination of any one or more in the signal intensity of single, this broadcast Probe Request, decides whether to ring
Answer Probe Response, only determine need response when, just can respond Probe Response, from
And, decrease the quantity of Probe Response, save interface-free resources.
It addition, when AP receives clean culture Probe Request, determining this clean culture Probe Request
In the SSID that carries identical with the SSID of this equipment after, will not directly in response to Probe Response, and
It is further according to the black and white lists on the load of this equipment, this equipment, the letter of this clean culture Probe Request
The combination of any one or more in number intensity, decides whether to respond Probe Response, is only determining
The when of needing response, just can respond Probe Response, thus, decrease the number of Probe Response
Amount, has saved interface-free resources.
During below for different situations, the concrete handling process of AP is described in detail.
Situation one: AP, according to the client side list of this equipment, decides whether to make broadcast Probe Request
Response
AP is for the handling process of clean culture Probe Request, as in figure 2 it is shown, comprise the following steps:
Step S201, AP receives the clean culture Probe Request that wireless client is sent；
Step S202, AP judges the SSID of SSID and this equipment carried in this clean culture Probe Request
The most identical, if identical, then perform step S203, otherwise, exit this flow process；
Step S203, AP, for this clean culture Probe Request, responds Probe to this wireless client
Response, performs step S204 afterwards；
Step S204, AP judges whether there is this wireless client in local client side list, if not existing,
Then perform step S205, otherwise, perform step S206；
Step S205, this wireless client is added in this client side list by AP, and arranges the aging of correspondence
Intervalometer；
Concrete, AP can (Media Access Control, media be visited by the MAC of this wireless client
Ask control) address adds in this client side list, and the ageing timer of correspondence is set.If this is aging fixed
Time device time-out, then from client side list, delete this wireless client.
Step S206, AP refreshes the ageing timer that in this client side list, this wireless client is corresponding, i.e.
This ageing timer is made to restart timing.
Thus, by above-mentioned steps S201～step S206, AP can configure the SSID of this equipment
Wireless client (that is, this wireless client being preserved the SSID of this AP) recorded client side list
In, in order to when receiving the broadcast Probe Request that this wireless client is sent, can be according to this client
List decides whether to respond Probe Response.
AP is for the handling process of broadcast Probe Request, as it is shown on figure 3, comprise the following steps:
Step S301, AP receives the broadcast Probe Request that wireless client is sent；
Step S302, AP judging whether to exist in client side list this wireless client, if not existing, then holding
Row step S303, otherwise, exits this flow process；
Step S303, AP, for this broadcast Probe Request, responds Probe to this wireless client
Response。
Owing to wireless client is when scanning AP around, can send and broadcast Probe Request, the most also can
Sending clean culture Probe Request for the SSID configured on this equipment, therefore, AP may connect
Receive broadcast Probe Request and clean culture Probe Request that same wireless client is sent.If AP
Receive the broadcast Probe Request that wireless client is sent, and, find that this wireless client is client
In end list, illustrating that this wireless client had configured the SSID of this equipment, this wireless client is sending
During this broadcast Probe Request, also have issued the clean culture Probe Request of the SSID carrying this equipment,
Now, it is not necessary to respond for this broadcast Probe Request, only need to be for this clean culture Probe Request
Respond.
In situation one, AP is receiving the clean culture of the SSID carrying this equipment that wireless client is sent
After Probe Request, in the case of there is not this wireless client in client side list, by this nothing
Line client records in client side list, thus, receiving the broadcast Probe that this wireless client is sent
After Request, can be according to client side list has existed this wireless client, it is judged that without for
This broadcast Probe Request responds.Reach to reduce the quantity of Probe Response and saving has been eated dishes without rice or wine
The purpose of resource.
Situation two: AP, according to the loading condition of this equipment, decides whether clean culture Probe Request or broadcast
Probe Request responds
AP is for the handling process of clean culture Probe Request, as shown in Figure 4, comprises the following steps:
Step S401, AP receives the clean culture Probe Request that wireless client is sent；
Step S402, AP judges the SSID of SSID and this equipment carried in this clean culture Probe Request
The most identical, if identical, then perform step S403, otherwise, exit this flow process；
Step S403, AP judges that this wireless client the most establishes incidence relation with this equipment, if not having
There is foundation, then perform step S404, otherwise, perform step S405；
Step S404, AP judges that the load of this equipment has reached to preset load threshold, if being not reaching to,
Then perform step S405, otherwise, exit this flow process；
Concrete, the load of AP can be the quantity of the wireless client establishing incidence relation, and/or should
Flow etc. on AP.
Step S405, AP, for this clean culture Probe Request, responds Probe to this wireless client
Response。
By above-mentioned steps S401～step S405, if wireless client has been associated with this AP, then AP
Directly responding, if wireless client does not associates with this AP, then AP can judge this equipment
Loading condition, only when not yet reaching to preset load threshold, just responds.
AP for broadcast Probe Request handling process, with above-mentioned as shown in Figure 4 for clean culture Probe
The handling process of Request is similar to, and difference is after receiving broadcast Probe Request, it is not necessary to hold
Row step S402, directly performs step S403.
In situation two, that no matter receive is broadcast Probe Request, or clean culture Probe Request,
AP can just respond when the load judging this equipment is not reaching to preset load threshold, thus reaches
The quantity reducing Probe Response and the purpose saving interface-free resources are arrived, by configuring not for different AP
Same default load threshold, it is also possible to reach the purpose of load balancing.
Situation three: AP, according to the black and white lists on this equipment, decides whether clean culture Probe Request or wide
Broadcast Probe Request to respond
AP is for the handling process of clean culture Probe Request, as it is shown in figure 5, comprise the following steps:
Step S501, AP receives the clean culture Probe Request that wireless client is sent；
Step S502, AP judges the SSID of SSID and this equipment carried in this clean culture Probe Request
The most identical, if identical, then perform step S503, otherwise, exit this flow process；
Step S503, AP judges whether there is white list on this equipment, the most then perform step S504,
Otherwise, step S506 is performed；
Wherein, the white list on AP can according to practical situation carry out static configuration and/or according to preset rules from
Dynamic interpolation, this is not limited by the embodiment of the present application.
Step S504, AP judges that this wireless client whether in this white list, the most then performs step
S505, otherwise, performs step S506；
Step S505, AP, for this clean culture Probe Request, responds Probe to this wireless client
Response；
Step S506, AP judges whether there is blacklist on this equipment, the most then perform step S507,
Otherwise, step S505 is performed；
Wherein, the blacklist on AP can according to practical situation carry out static configuration and/or according to preset rules from
Dynamic interpolation, this is not limited by the embodiment of the present application.
Step S507, AP judges that this wireless client, whether in this blacklist, if not existing, then performs step
S505, otherwise, exits this flow process.
AP for broadcast Probe Request handling process, with above-mentioned as shown in Figure 5 for clean culture Probe
The handling process of Request is similar to, and difference is after receiving broadcast Probe Request, it is not necessary to hold
Row step S502, directly performs step S503.
In situation three, that no matter receive is broadcast Probe Request, or clean culture Probe Request,
AP can determine whether to respond according to the black and white lists on this equipment, when there is white list, only
The Probe Request sending the wireless client in white list responds, when there is blacklist,
Only the Probe Request that wireless client in blacklist is not sent is responded, thus, reach
Reduce the quantity of Probe Response and save the purpose of interface-free resources.Further, by black and white lists to access
Wireless client filter, it is ensured that network security.
Situation four: AP according to the signal intensity of the Probe Request received, decides whether receiving
Clean culture Probe Request or broadcast Probe Request responds
AP is for the handling process of clean culture Probe Request, as shown in Figure 6, comprises the following steps:
Step S601, AP receives the clean culture Probe Request that wireless client is sent；
Step S602, AP judges the SSID of SSID and this equipment carried in this clean culture Probe Request
The most identical, if identical, then perform step S603, otherwise, exit this flow process；
Step S603, AP judges that whether the signal intensity of this clean culture Probe Request is less than preset strength threshold
Value, if being not less than, then performs step S604, otherwise, exits this flow process；
Wherein, preset strength threshold value can configure according to practical situation and adjust.
Step S604, AP, for this clean culture Probe Request, responds Probe to this wireless client
Response。
AP for broadcast Probe Request handling process, with above-mentioned as shown in Figure 6 for clean culture Probe
The handling process of Request is similar to, and difference is after receiving broadcast Probe Request, it is not necessary to hold
Row step S602, directly performs step S603.
In situation four, that no matter receive is broadcast Probe Request, or clean culture Probe Request,
AP can be when the signal intensity judging the Probe Request received be not less than preset strength threshold value,
Respond, thus reached reduce the quantity of Probe Response and save the purpose of interface-free resources.
It addition, in actual implementation process, it is also possible at least two situation in above-mentioned four kinds of situations is tied
Altogether.As a example by following several situations, illustrate.
Situation five: situation one and situation four combine
For the handling process of clean culture Probe Request, as it is shown in fig. 7, comprises following steps:
Step S701, AP receives the clean culture Probe Request that wireless client is sent；
Step S702, AP judges the SSID of SSID and this equipment carried in this clean culture Probe Request
The most identical, if differing, then exiting this flow process, if identical, then performing step S703；
Step S703, AP judges whether there is this wireless client, if not depositing in local client side list
, then performing step S704, if existing, then performing step S705；
Step S704, this wireless client is added in this client side list by AP, and arranges the aging of correspondence
Intervalometer；
Step S705, the ageing timer that this wireless client in client side list is corresponding is refreshed by AP；
Step S706, AP judges that whether the signal intensity of this clean culture Probe Request is less than preset strength threshold
Value, if being not less than, then performing step S707, if being less than, then exiting this flow process；
Step S707, AP, for this clean culture Probe Request, responds Probe to this wireless client
Response。
For the handling process of broadcast Probe Request, as shown in Figure 8, comprise the following steps:
Step S801, AP receives the broadcast Probe Request that wireless client is sent；
Step S802, AP judges whether to exist in client side list this wireless client, if existing, then exits
This flow process, if not existing, then performs step S803；
Step S803, AP judges that whether the signal intensity of this broadcast Probe Request is less than preset strength threshold
Value, if being not less than, then performing step S804, if being less than, then exiting this flow process；
Step S804, AP, for this broadcast Probe Request, responds Probe to this wireless client
Response。
Situation six: situation two and situation three combine
AP is for the handling process of clean culture Probe Request, as it is shown in figure 9, comprise the following steps:
Step S901, AP receives the clean culture Probe Request that wireless client is sent；
Step S902, AP judges the SSID of SSID and this equipment carried in this clean culture Probe Request
The most identical, if identical, then perform step S903, otherwise, exit this flow process；
Step S903, AP judges that this wireless client the most establishes incidence relation with this equipment, if not having
There is foundation, then perform step S904, if establishing, performing step S909；
Step S904, AP judges that the load of this equipment has reached to preset load threshold, if being not reaching to,
Then perform step S905, otherwise, exit this flow process；
Step S905, AP judges whether there is white list on this equipment, the most then perform step S906,
Otherwise, step S907 is performed；
Step S906, AP judges that this wireless client whether in this white list, the most then performs step
S909, otherwise, performs step S907；
Step S907, AP judges whether there is blacklist on this equipment, the most then perform step S908,
Otherwise, step S909 is performed；
Step S908, AP judges that this wireless client, whether in this blacklist, if not existing, then performs step
S909, otherwise, exits this flow process；
Step S909, AP, for this clean culture Probe Request, responds Probe to this wireless client
Response。
AP for broadcast Probe Request handling process, with above-mentioned as shown in Figure 9 for clean culture Probe
The handling process of Request is similar to, and difference is after receiving broadcast Probe Request, it is not necessary to hold
Row step S902, directly performs step S903.
Situation seven: situation one, situation two and situation four combine
For the handling process of clean culture Probe Request, as shown in Figure 10, comprise the following steps:
Step S1001, AP receives the clean culture Probe Request that wireless client is sent；
Step S1002, AP judges the SSID of SSID and this equipment carried in this clean culture Probe Request
The most identical, if differing, then exiting this flow process, if identical, then performing step S1003；
Step S1003, AP judges whether there is this wireless client, if not in local client side list
Existing, then perform step S1004, if existing, then performing step S1005；
Step S1004, this wireless client is added in this client side list by AP, and arranges the old of correspondence
Change intervalometer；Perform step S1006 afterwards；
Step S1005, the ageing timer that this wireless client in client side list is corresponding is refreshed by AP；
Perform step S1006 afterwards；
Step S1006, AP judges that this wireless client the most establishes incidence relation with this equipment, if
Being not set up, then perform step S1007, if establishing, then performing step S1008；
Step S1007, AP judges that the load of this equipment has reached to preset load threshold, if not reaching
Arrive, then perform step S1008, otherwise, exit this flow process；
Step S1008, AP judges that whether the signal intensity of this clean culture Probe Request is less than preset strength threshold
Value, if being not less than, then performing step S1009, if being less than, then exiting this flow process；
Step S1009, AP, for this clean culture Probe Request, responds Probe to this wireless client
Response。
For the handling process of broadcast Probe Request, as shown in figure 11, comprise the following steps:
Step S1101, AP receives the broadcast Probe Request that wireless client is sent；
Step S1102, AP judges whether to exist in client side list this wireless client, if existing, then moves back
Going out this flow process, if not existing, then performing step S1103；
Step S1103, AP judges that this wireless client the most establishes incidence relation with this equipment, if
Being not set up, then perform step S1104, if having been set up, then performing step S1105；
Step S1104, AP judges that the load of this equipment has reached to preset load threshold, if not reaching
Arrive, then perform step S1105, otherwise, exit this flow process；
Step S1105, AP judges that whether the signal intensity of this broadcast Probe Request is less than preset strength threshold
Value, if being not less than, then performs step S1106, otherwise, exits this flow process.
Situation eight: situation two, situation three and situation four combine
AP is for the handling process of clean culture Probe Request, as shown in figure 12, comprises the following steps:
Step S1201, AP receives the clean culture Probe Request that wireless client is sent；
Step S1202, AP judges the SSID of SSID and this equipment carried in this clean culture Probe Request
The most identical, if identical, then perform step S1203, otherwise, exit this flow process；
Step S1203, AP judges that this wireless client the most establishes incidence relation with this equipment, if
Being not set up, then perform step S1204, if establishing, performing step S1209；
Step S1204, AP judges that the load of this equipment has reached to preset load threshold, if not reaching
Arrive, then perform step S1205, otherwise, exit this flow process；
Step S1205, AP judges whether there is white list on this equipment, the most then perform step S1206,
Otherwise, step S1207 is performed；
Step S1206, AP judges that this wireless client whether in this white list, the most then performs step
S1209, otherwise, performs step S1207；
Step S1207, AP judges whether there is blacklist on this equipment, the most then perform step S1208,
Otherwise, step S1209 is performed；
Step S1208, AP judges that this wireless client, whether in this blacklist, if not existing, then performs step
Rapid S1209, otherwise, exits this flow process；
Step S1209, AP judges that whether the signal intensity of this clean culture Probe Request is less than preset strength threshold
Value, if being not less than, then performing step S1210, if being less than, then exiting this flow process；
Step S1210, AP, for this clean culture Probe Request, responds Probe to this wireless client
Response。
AP for broadcast Probe Request handling process, with above-mentioned as shown in figure 12 for clean culture
The handling process of Probe Request is similar to, and difference is after receiving broadcast Probe Request, no
Need to perform step S1202, directly perform step S1203.
Corresponding with the embodiment of the response method of foregoing detection claim frame, present invention also provides a kind of detection
The embodiment of the responding device of claim frame.
The embodiment of the responding device 60 of the application probe request can be applied on AP.Device embodiment
Can be realized by software, it is also possible to realize by the way of hardware or software and hardware combining.Implemented in software
As a example by, as the device on a logical meaning, it is that the processor 10 by its place AP is by non-volatile
Computer program instructions corresponding in memorizer 50 reads and runs formation in internal memory 40.From hardware view
For, as shown in figure 13, for a kind of hardware structure diagram of the application responding device place AP, except Figure 13
Shown processor 10, internal bus 20, network interface 30, internal memory 40 and nonvolatile memory
Outside 50, in embodiment, the AP at device place is generally according to the actual functional capability of this AP, it is also possible to include other
Hardware, repeats no more this.
Refer to Figure 14, the responding device 60 of the probe request of the embodiment of the present application includes with lower module:
Receiver module the 61, first judge module 62 and respond module 63, wherein:
Receiver module 61, for receiving the Probe Request that wireless client is sent；
First judge module 62, for receiving, at receiver module 61, the Probe that wireless client is sent
After Request, according to specified conditions, it may be judged whether be required for this Probe Request and respond Probe
Response；Wherein, when this Probe Request be broadcast Probe Request time, specified conditions include with
At least one lower: the client side list of this equipment, the load of this equipment, the black and white lists of this equipment, this Probe
The signal intensity of Request；When this Probe Request is clean culture Probe Request, specified conditions bag
Include at least one of: the load of this equipment, the black and white lists of this equipment, the signal of this Probe Request
Intensity；
Respond module 63, if judging to need response for the first judge module 62, then rings to wireless client
Answer Probe Response.
Wherein, the Probe Request received when receiver module 61 is broadcast Probe Request, and,
When specified conditions include the client side list of this equipment, the first judge module 62 includes: client judges single
Unit and determine unit, wherein:
Client judging unit, is used for judging whether there is wireless client in client side list；
Determining unit, if judging to exist for client judging unit, then judging to need not for this
Probe Request responds Probe Response, if not existing, then judges to be required for this Probe Request
Response Probe Response.
Now, as shown in figure 15, the Probe Request received when receiver module 61 is clean culture Probe
During Request, the responding device 60 of the probe request of the embodiment of the present application can also include: second sentences
Disconnected module 64, list add module 65 and timer renovating module 66, wherein:
Second judge module 64, is used for judging whether there is wireless client in client side list；
Module 65 is added in list, if judging not exist, then by wireless client for the second judge module 64
Add in client side list, and the ageing timer of correspondence is set；
Timer renovating module 66, if judging to exist for the second judge module 64, then refreshes client row
The ageing timer that in table, wireless client is corresponding.
Wherein, the Probe Request received when receiver module 61 is broadcast Probe Request or clean culture
Probe Request, and, when specified conditions include the load of this equipment, the first judge module includes: association
Judging unit, load judgment unit and determine unit, wherein:
Association judging unit, is used for judging that wireless client the most establishes incidence relation with this equipment；
Load judgment unit, if judging to be not set up incidence relation for association judging unit, then judges this
The load of equipment has reached to preset load threshold；
Determining unit, if judging to have been set up incidence relation for association judging unit, then judging to need
Probe Response is responded for this Probe Request；If being additionally operable to load judgment unit judges go out
Through reaching default load threshold, then judge to need not respond Probe Response for this Probe Request,
If being not reaching to preset load threshold, then judge that being required for this Probe Request responds Probe
Response。
Wherein, the Probe Request received when receiver module 61 is broadcast Probe Request or clean culture
Probe Request, and, when specified conditions include the black and white lists of this equipment, the first judge module includes:
White list client judging unit, blacklist client judging unit and determine unit, wherein:
White list client judging unit, is used for judging that this wireless client is whether in white list；
Blacklist client judging unit, if judging not at white list for white list client judging unit
In, then judge that this wireless client is whether in blacklist；
Determining unit, if judging in white list for white list client judging unit, then judging to need
Probe Response is responded for this Probe Request；If being additionally operable to blacklist client judging unit
Judge in blacklist, then judge to need not respond Probe Response for this Probe Request,
If not in blacklist, then judge that being required for this Probe Request responds Probe Response.
Wherein, the Probe Request received when receiver module 61 is broadcast Probe Request or clean culture
Probe Request, and, when being the signal intensity of the Probe Request that specified conditions include receiving,
First judge module includes: intensity judging unit and determine unit, wherein:
Intensity judging unit, for judging that whether the signal intensity of this Probe Request is less than preset strength threshold
Value；
Determining unit, if judging not less than preset strength threshold value for intensity judging unit, then judging to need
Probe Response is responded, if less than preset strength threshold value, then judging for this Probe Request
Need not respond Probe Response for this Probe Request.
In said apparatus, the function of unit and the process that realizes of effect specifically refer to corresponding step in said method
Rapid realizes process, does not repeats them here.
For device embodiment, owing to it corresponds essentially to embodiment of the method, so relevant part sees
The part of embodiment of the method illustrates.Device embodiment described above is only schematically, wherein
The described unit illustrated as separating component can be or may not be physically separate, as unit
The parts of display can be or may not be physical location, i.e. may be located at a place, or also may be used
To be distributed on multiple NE.Some or all of module therein can be selected according to the actual needs
Realize the purpose of the application scheme.Those of ordinary skill in the art in the case of not paying creative work,
I.e. it is appreciated that and implements.
The foregoing is only the preferred embodiment of the application, not in order to limit the application, all in this Shen
Within spirit please and principle, any modification, equivalent substitution and improvement etc. done, should be included in this Shen
Within the scope of please protecting.
Claims (12)
1. the response method of a probe request, it is characterised in that described method is applied to access point AP,
Described method includes:
Receive the probe request Probe Request that wireless client is sent；
According to specified conditions, it may be judged whether be required for described Probe Request echo probe response frame Probe
Response；Wherein, when described Probe Request is broadcast Probe Request, described specified conditions
Including at least one of: the client side list of this equipment, the load of this equipment, the black and white lists of this equipment,
The signal intensity of described Probe Request；When described Probe Request is clean culture Probe Request,
Described specified conditions include at least one of: the load of this equipment, the black and white lists of this equipment, described Probe
The signal intensity of Request；
If desired respond, then respond Probe Response to described wireless client.
Method the most according to claim 1, it is characterised in that when described Probe Request is broadcast
Probe Request, and, when described specified conditions include the client side list of this equipment, described according to specific
Condition, it may be judged whether be required for described Probe Request and respond Probe Response, including:
Judge whether described client side list exists described wireless client；
If existing, then judge to need not respond Probe Response for described Probe Request；
If not existing, then judge that being required for described Probe Request responds Probe Response.
Method the most according to claim 1, it is characterised in that when described Probe Request is clean culture
During Probe Request, described method also includes:
Judge whether described client side list exists described wireless client；
If not existing, then described wireless client is added in described client side list, and correspondence is set
Ageing timer；
If existing, then refresh the ageing timer that described in described client side list, wireless client is corresponding.
Method the most according to claim 1, it is characterised in that when described Probe Request is broadcast
Probe Request or clean culture Probe Request, and, when described specified conditions include the load of this equipment,
It is described according to specified conditions, it may be judged whether to be required for described Probe Request and respond Probe Response,
Including:
Judge that described wireless client the most establishes incidence relation with this equipment；
If having been set up, then judge that being required for described Probe Request responds Probe Response；
If being not set up, then judge that the load of this equipment has reached to preset load threshold, if having reached
To described default load threshold, then judge to need not respond Probe for described Probe Request
Response；If being not reaching to described default load threshold, then judge to be required for described Probe Request
Response Probe Response.
Method the most according to claim 1, it is characterised in that when described Probe Request is broadcast
Probe Request or clean culture Probe Request, and, described specified conditions include the black and white name of this equipment
Dan Shi, described according to specified conditions, it may be judged whether to be required for described Probe Request and respond Probe
Response, including:
Judge that described wireless client is whether in white list；
If in described white list, then judge that being required for described Probe Request responds Probe
Response；
If not in described white list, then judge that described wireless client is whether in blacklist；If described
In blacklist, then judge to need not respond Probe Response for described Probe Request；If no
In described blacklist, then judge that being required for described Probe Request responds Probe Response.
Method the most according to claim 1, it is characterised in that when described Probe Request is broadcast
Probe Request or clean culture Probe Request, and, described in be that specified conditions include described Probe
During the signal intensity of Request, described according to specified conditions, it may be judged whether to be required for described Probe Request
Response Probe Response, including:
Judge that whether the signal intensity of described Probe Request is less than preset strength threshold value；
If not less than described preset strength threshold value, then judge to be required for described Probe Request response
Probe Response；
If less than described preset strength threshold value, then judge to need not respond for described Probe Request
Probe Response。
7. the responding device of a probe request, it is characterised in that described device is applied to access point AP
In, described device includes:
Receiver module, for receiving the probe request Probe Request that wireless client is sent；
First judge module, for receiving, at described receiver module, the Probe that wireless client is sent
After Request, according to specified conditions, it may be judged whether be required for described Probe Request echo probe and ring
Answer frame Probe Response；Wherein, when described Probe Request is broadcast Probe Request, institute
State specified conditions and include at least one of: the client side list of this equipment, the load of this equipment, this equipment
Black and white lists, the signal intensity of described Probe Request；When described Probe Request is clean culture Probe
During Request, described specified conditions include at least one of: the load of this equipment, the black and white name of this equipment
Single, the signal intensity of described Probe Request；
Respond module, if judging to need response, then to described wireless client for described first judge module
End response Probe Response.
Device the most according to claim 7, it is characterised in that as the Probe that described receiver module receives
Request is broadcast Probe Request, and, when described specified conditions include the client side list of this equipment,
Described first judge module includes:
Client judging unit, is used for judging whether to exist in described client side list described wireless client；
Determine unit, if judging to exist for described client judging unit, then judge to need not for
Described Probe Request responds Probe Response, if not existing, then judges to be required for described Probe
Request responds Probe Response.
Device the most according to claim 7, it is characterised in that as the Probe that described receiver module receives
When Request is clean culture Probe Request, described device also includes: mould is added in the second judge module, list
Block and timer renovating module, wherein:
Described second judge module, is used for judging whether to exist in described client side list described wireless client；
Module is added in described list, if judging not exist, then by described nothing for described second judge module
Line client is added in described client side list, and arranges the ageing timer of correspondence；
Described timer renovating module, if judging to exist for described second judge module, then refreshes described
The ageing timer that wireless client described in client side list is corresponding.
Device the most according to claim 7, it is characterised in that when described receiver module receives
Probe Request is broadcast Probe Request or clean culture Probe Request, and, described specified conditions
During including the load of this equipment, described first judge module includes:
Association judging unit, is used for judging that described wireless client has the most established with this equipment and associates pass
System；
Load judgment unit, if judging to be not set up incidence relation for described association judging unit, then sentences
The load of this equipment disconnected has reached to preset load threshold；
Determining unit, if judging to have been set up incidence relation for described association judging unit, then judging
Go out to be required for described Probe Request and respond Probe Response；If being additionally operable to described load judgment list
Unit judges to have reached described default load threshold, then judge to need not for described Probe Request
Response Probe Response, if being not reaching to described default load threshold, then judges to be required for described
Probe Request responds Probe Response.
11. devices according to claim 7, it is characterised in that when described receiver module receives
Probe Request is broadcast Probe Request or clean culture Probe Request, and, described specified conditions
During including the black and white lists of this equipment, described first judge module includes:
White list client judging unit, is used for judging that described wireless client is whether in white list；
Blacklist client judging unit, if judging not in institute for described white list client judging unit
State in white list, then judge that described wireless client is whether in blacklist；
Determine unit, if judging in described white list, then for described white list client judging unit
Judge that being required for described Probe Request responds Probe Response；If being additionally operable to described blacklist
Client judging unit is judged in described blacklist, then judge to need not for described Probe
Request responds Probe Response, if not in described blacklist, then judges to be required for described Probe
Request responds Probe Response.
12. devices according to claim 7, it is characterised in that when described receiver module receives
Probe Request be broadcast Probe Request or clean culture Probe Request, and, described in be specific bar
When part includes the signal intensity of described Probe Request, described first judge module includes:
Intensity judging unit, for judging that whether the signal intensity of described Probe Request is less than preset strength
Threshold value；
Determine unit, if judging not less than described preset strength threshold value, then for described intensity judging unit
Judge that being required for described Probe Request responds Probe Response, if less than described preset strength
Threshold value, then judge to need not respond Probe Response for described Probe Request.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610224422.6A CN105933950A (en) | 2016-04-12 | 2016-04-12 | Responding method and device of probe request |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610224422.6A CN105933950A (en) | 2016-04-12 | 2016-04-12 | Responding method and device of probe request |
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Application publication date: 20160907 |