CN107690174A - A kind of method that compatible WLAN protocol of wireless local area network realizes Access Control - Google Patents
A kind of method that compatible WLAN protocol of wireless local area network realizes Access Control Download PDFInfo
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- CN107690174A CN107690174A CN201610640844.1A CN201610640844A CN107690174A CN 107690174 A CN107690174 A CN 107690174A CN 201610640844 A CN201610640844 A CN 201610640844A CN 107690174 A CN107690174 A CN 107690174A
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/12—WLAN [Wireless Local Area Networks]
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- Computer Networks & Wireless Communication (AREA)
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- Computer Security & Cryptography (AREA)
- Mobile Radio Communication Systems (AREA)
- Small-Scale Networks (AREA)
Abstract
The invention discloses a kind of method that compatible WLAN protocol of wireless local area network realizes Access Control, belong to radio network technique field, the present invention adds terminal list in AP access points, individually the wireless terminal into terminal list sends Beacon beacon frames to AP access points, to control the wireless terminal of determination to connect network, wireless terminal need not be changed, the decision-making power for accessing selection to network can be transferred by terminal, realize wireless network access strategy；Compatible existing commercial standard (CS) of the invention, and a variety of security strategies can be realized, performance of wireless local area networks is lifted, optimizes the network experience of terminal.
Description
Technical field
The present invention relates to radio network technique field, more particularly to a kind of compatible WLAN protocol of wireless local area network realizes access
The method of control.
Background technology
As shown in figure 1, effective access control can not be carried out in the WLAN WLANs that traditional 802.11 standards define
System, because AP access points broadcast Beacon beacon frames, each terminal can receive all AP accesses in its effective radio transmission range
The Beacon beacon frames of point, so as to find the presence of all AP access points.Then terminal is by selection signal maximum intensity
AP access points, carry out the certification and association of next step.AP access points can only choose whether to receive, and can not carry out accessing determining for selection
Plan, the decision-making power is in terminal.But the access of terminal selection is only carried out only in accordance with strongest signal strength, can not adapt to various complexity
Access demand under wireless environment, particularly high-density deployment scene.Industry fully have studied various negative to realize with educational circles
Carry balanced, reduction signal interference, lifting handling capacity power dissipation ratio etc. and be the access selection strategy of target, and obtained in emulation experiment
Remarkable result.But these access selection strategies are the wireless network models based on theory, are not considered in actual WLAN
How the decision-making power that selection is accessed in WLAN performs in the case of terminal.Therefore a kind of wireless offices of compatible WLAN are needed
The method that domain fidonetFido realizes Access Control, realize and the decision-making power for accessing selection is transferred to network by terminal, and need not
Terminal is modified.
The content of the invention
It is an object of the invention to provide a kind of method that compatible WLAN protocol of wireless local area network realizes Access Control, it is not necessary to
Wireless terminal is changed, the decision-making power for accessing selection to network can be transferred by terminal, realize wireless network access strategy；The present invention
Compatible existing commercial standard (CS), and a variety of security strategies can be realized, performance of wireless local area networks is lifted, optimizes the network body of terminal
Test.
To achieve the above object, the present invention uses following technical scheme：
A kind of method that compatible WLAN protocol of wireless local area network realizes Access Control, comprises the following steps：
Step 1：WLAN WLANs include several wireless terminals, several AP access points and central server, wireless whole
End is connected by wireless network with AP access points, and AP access points are connected with central server；
Step 2：Be stored with all AP access points one be used for record allow access network wireless terminal terminal
List, the terminal list in each AP access point are differed, and wireless network access strategy is stored with central server；
Step 3：Wherein any one AP access point AP1 simultaneously perform two flow of task, i.e., first task flow and
Second flow of task；
Step 4：Being completed for the task of first task flow is：What the AP access points AP1 was stored to oneself
Wireless terminal timing in terminal list sends unicast Beacon beacon frames；The first task flow comprises the following steps：
Step A：A wireless terminal in AP access points AP1 selection terminal lists is wireless terminal S0；
Step B：AP access points AP1 sends unicast Beacon beacon frames to wireless terminal S0；
Step C：Judge whether wireless terminal S0 is last wireless terminal in terminal list：It is then to perform step E；
It is no, then perform step D；
Step D：Next wireless terminal in AP access points AP1 selection terminal lists is wireless terminal S0, and performs step
Rapid B；
Step E：Terminate to send Beacon beacon frames, reset timer timing；
Step F：Judge whether timer timing reaches preset time：It is then to perform step A；It is no, then perform step F；
Step 5：Management frame transmitted by from all wireless terminals to the AP access points includes Probe Request and detected
Claim frame, Authentication authentication frames and Association Request association request frames, the second flow of task institute
Being completed for task is that the AP access points AP1 judges the species of the management frame transmitted by any one wireless terminal S0, and is done
Go out corresponding processing, second flow of task comprises the following steps：
Step G：AP access points AP1 receives the species of the management frame transmitted by wireless terminal S0：Probe Request in this way
Probe request, then perform step H；Authentication authentication frames in this way, then perform step M；Association in this way
Request association request frames then perform step O；
Step H：AP access points AP1 receives the Probe Request probe requests that wireless terminal S0 is sent；
Step I:Judge whether the Probe Request probe requests that wireless terminal is sent are correct Probe
Request probe requests：It is then to perform step J；It is no, then perform step Q；
Step J：Whether AP access points AP1 judges wireless terminal S0 in the terminal list of oneself：It is, then to wireless terminal
S0 sends Probe Response probing response frames, performs step Q；It is no, then perform step K；
Step K:AP access points AP1 sends access to central server to be allowed to ask, and central server is according to the nothing of storage
Gauze network access strategy determines whether that wireless terminal S0 accesses WLAN WLANs, and whether will allow wireless terminal S0
The result of access returns to AP access points AP1：Such as allow to access network, then perform step L；If do not allowed to access network, then hold
Row step Q；
Step L:Wireless terminal S0 status indication into " unverified ", and is added to the terminal of oneself by AP access points AP1
In list；AP access points AP1 replys Probe Response probing response frames to wireless terminal S0；Perform step Q；
Step M：AP access points AP1 judges whether the Authentication authentication frames that wireless terminal S0 is sent are correct：It is,
Then perform step N；It is no, then perform step Q；
Step N:Whether AP access points AP1 judges wireless terminal S0 in the terminal list of oneself and state is " not recognize
Card "：It is then to be authenticated by WEP authentication modes, after certification success, AP access points AP1 is by wireless terminal S0 status indication
Into " certification ", Authentication Response authentication response frames are sent to wireless terminal S0, and perform step Q；It is no,
Then perform step Q；
Step O:AP access points AP1 judges that the Association Request association request frames that wireless terminal S0 is sent are
It is no correct：It is then to perform step P；It is no, then perform step Q；
Step P：AP access points AP1 judges whether wireless terminal S0 in the terminal list of oneself and has been marked as
" certification "：It is that then AP access points AP1 sends Association Response association response frames to wireless terminal S0, wirelessly
Terminal S0 access AP access points AP1 successes, and perform step Q；It is no, then perform step Q；
Step Q：The management frame sent etc. next wireless terminal to be received, perform step G.
The wireless terminal is the equipment that can connect WLAN WLANs.
The equipment that WLAN WLANs can be connected is computer or mobile phone.
The AP access points are wireless router.
Any one wireless terminal S0 is divided into active scan and drive sweep in scanning, and wireless terminal S0 is in master
Beacon beacon frames are not received during dynamic scanning successively in each channels broadcast Probe Request probe requests to own
AP access points can all receive；The wireless terminal S0 receives what the AP access points AP1 was sent in drive sweep
After Beacon beacon frames, Probe Request probe requests can be sent to AP access points AP1；The wireless terminal S0 is connecing
After receiving the Probe Response probing response frames that the AP access points AP1 is sent, it can be sent to the AP access points AP1
Authentication authentication frames；The wireless terminal S0 is receiving what the AP access points AP1 was sent
After Authentication Response authentication response frames, Association can be sent to the AP access points AP1
Request association request frames.
The wireless terminal SO does not receive Beacon beacon frames in active scan also can be successively in each channels broadcast
Probe Request probe requests, all AP access points can all receive this Probe Request probe request, still
The AP for only having wireless terminal S0 in terminal list can just reply this Probe Request probe request, wireless terminal SO
Due to not receiving Beacon beacon frames and Probe Request probe requests transmitted by other AP access points, so nothing
Line terminal SO can not have found other AP access points.
It is an object of the invention to provide a kind of method that compatible WLAN protocol of wireless local area network realizes Access Control, it is not necessary to
Wireless terminal is changed, the decision-making power for accessing selection to network can be transferred by terminal, realize wireless network access strategy；The present invention
Compatible existing commercial standard (CS), and a variety of security strategies can be realized, performance of wireless local area networks is lifted, optimizes the network body of terminal
Test.
Brief description of the drawings
Fig. 1 is the schematic diagram of AP access points broadcast Beacon beacon frames in the prior art；
Fig. 2 is access process figure of the wireless terminal with AP access points of the present invention；
Fig. 3 is the AP access points storage terminal list schematic diagram of the present invention；
Fig. 4 is that 3 wireless terminals access schematic diagram before the accesses of two AP access points；
Fig. 5 is that 3 wireless terminals access schematic diagram after the accesses of two AP access points.
Embodiment
The method that a kind of compatible WLAN protocol of wireless local area network as Figure 2-3 realizes Access Control, including following step
Suddenly：
Step 1：WLAN WLANs include several wireless terminals, several AP access points and central server, wireless whole
End is connected by wireless network with AP access points, and AP access points are connected with central server；
Step 2：Be stored with all AP access points one be used for record allow access network wireless terminal terminal
List, the terminal list in each AP access point are differed, and wireless network access strategy is stored with central server；
Step 3：Wherein any one AP access point AP1 simultaneously perform two flow of task, i.e., first task flow and
Second flow of task；
Step 4：Being completed for the task of first task flow is：What the AP access points AP1 was stored to oneself
Wireless terminal timing in terminal list sends unicast Beacon beacon frames；The first task flow comprises the following steps：
Step A：A wireless terminal in AP access points AP1 selection terminal lists is wireless terminal S0；
Step B：AP access points AP1 sends unicast Beacon beacon frames to wireless terminal S0；
Step C：Judge whether wireless terminal S0 is last wireless terminal in terminal list：It is then to perform step E；
It is no, then perform step D；
Step D：Next wireless terminal in AP access points AP1 selection terminal lists is wireless terminal S0, and performs step
Rapid B；
Step E：Terminate to send Beacon beacon frames, reset timer timing；
Step F：Judge whether timer timing reaches preset time：It is then to perform step A；It is no, then perform step F；
Step 5：Management frame transmitted by from all wireless terminals to the AP access points includes Probe Request and detected
Claim frame, Authentication authentication frames and Association Request association request frames, the second flow of task institute
Being completed for task is that the AP access points AP1 judges the species of the management frame transmitted by any one wireless terminal S0, and is done
Go out corresponding processing, second flow of task comprises the following steps：
Step G：AP access points AP1 receives the species of the management frame transmitted by wireless terminal S0：Probe Request in this way
Probe request, then perform step H；Authentication authentication frames in this way, then perform step M；Association in this way
Request association request frames then perform step O；
Step H：AP access points AP1 receives the Probe Request probe requests that wireless terminal S0 is sent；
Step I:Judge whether the Probe Request probe requests that wireless terminal is sent are correct Probe
Request probe requests：It is then to perform step J；It is no, then perform step Q；
Step J：Whether AP access points AP1 judges wireless terminal S0 in the terminal list of oneself：It is, then to wireless terminal
S0 sends Probe Response probing response frames, performs step Q；It is no, then perform step K；
Step K:AP access points AP1 sends access to central server to be allowed to ask, and central server is according to the nothing of storage
Gauze network access strategy determines whether that wireless terminal S0 accesses WLAN WLANs, and whether will allow wireless terminal S0
The result of access returns to AP access points AP1：Such as allow to access network, then perform step L；If do not allowed to access network, then hold
Row step Q；
Step L:Wireless terminal S0 status indication into " unverified ", and is added to the terminal of oneself by AP access points AP1
In list；AP access points AP1 replys Probe Response probing response frames to wireless terminal S0；Perform step Q；
Step M：AP access points AP1 judges whether the Authentication authentication frames that wireless terminal S0 is sent are correct：It is,
Then perform step N；It is no, then perform step Q；
Step N:Whether AP access points AP1 judges wireless terminal S0 in the terminal list of oneself and state is " not recognize
Card "：It is then to be authenticated by WEP authentication modes, after certification success, AP access points AP1 is by wireless terminal S0 status indication
Into " certification ", Authentication Response authentication response frames are sent to wireless terminal S0, and perform step Q；It is no,
Then perform step Q；
Step O:AP access points AP1 judges that the Association Request association request frames that wireless terminal S0 is sent are
It is no correct：It is then to perform step P；It is no, then perform step Q；
Step P：AP access points AP1 judges whether wireless terminal S0 in the terminal list of oneself and has been marked as
" certification "：It is that then AP access points AP1 sends Association Response association response frames to wireless terminal S0, wirelessly
Terminal S0 access AP access points AP1 successes, and perform step Q；It is no, then perform step Q；
Step Q：The management frame sent etc. next wireless terminal to be received, perform step G.
The wireless terminal is the equipment that can connect WLAN WLANs.
The equipment that WLAN WLANs can be connected is computer or mobile phone.
The AP access points are wireless router.
Any one wireless terminal S0 is divided into active scan and drive sweep in scanning, and wireless terminal S0 is in master
Beacon beacon frames are not received during dynamic scanning successively in each channels broadcast Probe Request probe requests to own
AP access points can all receive；The wireless terminal S0 receives what the AP access points AP1 was sent in drive sweep
After Beacon beacon frames, Probe Request probe requests can be sent to AP access points AP1；The wireless terminal S0 is connecing
After receiving the Probe Response probing response frames that the AP access points AP1 is sent, it can be sent to the AP access points AP1
Authentication authentication frames；The wireless terminal S0 is receiving what the AP access points AP1 was sent
After Authentication Response authentication response frames, Association can be sent to the AP access points AP1
Request association request frames.
The wireless terminal SO does not receive Beacon beacon frames in active scan also can be successively in each channels broadcast
Probe Request probe requests, all AP access points can all receive this Probe Request probe request, still
The AP for only having wireless terminal S0 in terminal list can just reply this Probe Request probe request, wireless terminal SO
Due to not receiving Beacon beacon frames and Probe Request probe requests transmitted by other AP access points, so nothing
Line terminal SO can not have found other AP access points.
The wireless network access is realizing load balancing, reducing signal interference or lifting handling capacity power dissipation ratio etc. as mesh
The general categories such as strategy or black and white lists that mark is formulated.
The situation of two AP access points is accessed for 3 wireless terminals as illustrated in figures 4-5, wireless terminal 1 and wireless terminal 2 are
AP access point AP1 and AP access points AP2 through being respectively connected to.AP access points AP1 according to its terminal list only to wireless terminal 1
Send unicast Beacon beacon frames.AP access points AP2 only sends unicast Beacon beacons according to its terminal list to wireless terminal 2
Frame.Wireless terminal 1 can only find AP access points AP1 presence and can not find AP access points AP2 presence.Wireless terminal 2
AP access points AP2 presence can be found and AP access points AP1 presence can not be found.
Now a wireless terminal 3 enters the wireless network coverage, because it is not in AP access point AP1 and AP access points
In AP2 terminal list, so wireless terminal 3 can not receive any Beacon beacon frames, any AP access points can not be found.Then
Wireless terminal 3 starts active scan, successively in each channels broadcast Probe Request probe requests.AP access points AP1 and
AP access points AP2 can receive the Probe Request probe requests, because wireless terminal 3 does not access in any one AP
In the terminal list of point, the AP access points for then receiving the Probe Request probe requests are sent to central server
The access application of wireless terminal 3, central server determine whether wireless terminal 3 according to the wireless network access strategy of storage
Network is accessed, and central server only distributes the access that an AP access point receives wireless terminal 3.
Wireless terminal 3 is allowed to access as AP access points AP1 is allocated, AP access points AP1 adds wireless to its terminal list
Terminal 3, state are " unverified ", and reply Probe Response frames to wireless terminal 3.AP access points AP1 starts to wireless
Terminal 3 sends unicast Beacon beacon frames, and so far wireless terminal 3 is it can be found that AP access points AP1 presence.And AP access points
AP2 will not individually send Beacon beacon frames to wireless terminal 3, therefore wireless terminal 3 can not find depositing for AP access points AP2
.Because wireless terminal 3 can only find AP access points AP1 presence, follow-up certification can only be carried out to AP access points AP1
And association phase.If wireless terminal 3 is attempted to initiate certification and association to AP access points AP2, it can be dropped and can not access.
It is an object of the invention to provide a kind of method that compatible WLAN protocol of wireless local area network realizes Access Control, it is not necessary to
Wireless terminal is changed, the decision-making power for accessing selection can be transferred to network by terminal, realizes that wireless network access strategy controls；This
The compatible existing commercial standard (CS) of invention, and a variety of security strategies can be realized, performance of wireless local area networks is lifted, optimizes the network of terminal
Experience.
Claims (6)
1. a kind of method that compatible WLAN protocol of wireless local area network realizes Access Control, it is characterised in that：Comprise the following steps：
Step 1：WLAN WLANs include several wireless terminals, several AP access points and central server, wireless terminal and led to
Cross wireless network to be connected with AP access points, AP access points are connected with central server；
Step 2：Be stored with all AP access points one be used for record allow access network wireless terminal terminal list,
Terminal list in each AP access point is differed, and wireless network access strategy is stored with central server；
Step 3：Wherein any one AP access point AP1 performs two flow of task, i.e. first task flow and second simultaneously
Flow of task；
Step 4：Being completed for the task of first task flow is：The AP access points AP1 is to the terminal oneself stored
Wireless terminal timing in list sends unicast Beacon beacon frames；The first task flow comprises the following steps：
Step A：A wireless terminal in AP access points AP1 selection terminal lists is wireless terminal S0；
Step B：AP access points AP1 sends unicast Beacon beacon frames to wireless terminal S0；
Step C：Judge whether wireless terminal S0 is last wireless terminal in terminal list：It is then to perform step E；It is no, then
Perform step D；
Step D：Next wireless terminal in AP access points AP1 selection terminal lists is wireless terminal S0, and performs step B；
Step E：Terminate to send Beacon beacon frames, reset timer timing；
Step F：Judge whether timer timing reaches preset time：It is then to perform step A；It is no, then perform step F；
Step 5：Management frame transmitted by from all wireless terminals to the AP access points includes Probe Request probe requests therebies
Frame, Authentication authentication frames and Association Request association request frames, second flow of task are complete
Into task judge the species of the management frame transmitted by any one wireless terminal S0 for the AP access points AP1, and make phase
The processing answered, second flow of task comprise the following steps：
Step G：AP access points AP1 receives the species of the management frame transmitted by wireless terminal S0：Probe Request are detected in this way
Claim frame, then perform step H；Authentication authentication frames in this way, then perform step M；Association in this way
Request association request frames then perform step O；
Step H：AP access points AP1 receives the Probe Request probe requests that wireless terminal S0 is sent；
Step I:Judge whether the Probe Request probe requests that wireless terminal is sent are correct Probe Request
Probe request：It is then to perform step J；It is no, then perform step Q；
Step J：Whether AP access points AP1 judges wireless terminal S0 in the terminal list of oneself：It is then to be sent out to wireless terminal S0
Probe Response probing response frames are sent, perform step Q；It is no, then perform step K；
Step K:AP access points AP1 sends access to central server to be allowed to ask, and central server is according to the wireless network of storage
Whether network access strategy determines whether that wireless terminal S0 accesses WLAN WLANs, and wireless terminal S0 will be allowed to access
Result return to AP access points AP1：Such as allow to access network, then perform step L；If do not allowed to access network, then step is performed
Rapid Q；
Step L:Wireless terminal S0 status indication into " unverified ", and is added to the terminal list of oneself by AP access points AP1
In；AP access points AP1 replys Probe Response probing response frames to wireless terminal S0；Perform step Q；
Step M：AP access points AP1 judges whether the Authentication authentication frames that wireless terminal S0 is sent are correct：It is then to hold
Row step N；It is no, then perform step Q；
Step N:Whether AP access points AP1 judges wireless terminal S0 in the terminal list of oneself and state is " unverified "：
Then to be authenticated by WEP authentication modes, certification success after, AP access points AP1 by wireless terminal S0 status indication into
" certification ", Authentication Response authentication response frames are sent to wireless terminal S0, and perform step Q；It is no, then
Perform step Q；
Step O:Whether just AP access points AP1 judges the Association Request association request frames of wireless terminal S0 transmissions
Really：It is then to perform step P；It is no, then perform step Q；
Step P：AP access points AP1 judges whether wireless terminal S0 in the terminal list of oneself and has been marked as " having recognized
Card "：It is that then AP access points AP1 sends Association Response association response frames, wireless terminal S0 to wireless terminal S0
AP access points AP1 successes are accessed, and perform step Q；It is no, then perform step Q；
Step Q：The management frame sent etc. next wireless terminal to be received, perform step G.
2. the method that a kind of compatible WLAN protocol of wireless local area network as claimed in claim 1 realizes Access Control, its feature exist
In：The wireless terminal is the equipment that can connect WLAN WLANs.
3. the method that a kind of compatible WLAN protocol of wireless local area network as claimed in claim 2 realizes Access Control, its feature exist
In：The equipment that WLAN WLANs can be connected is computer or mobile phone.
4. the method that a kind of compatible WLAN protocol of wireless local area network as claimed in claim 1 realizes Access Control, its feature exist
In：The AP access points are wireless router.
5. the method that a kind of compatible WLAN protocol of wireless local area network as claimed in claim 1 realizes Access Control, its feature exist
In：Any one wireless terminal S0 is divided into active scan and drive sweep in scanning, and wireless terminal S0 is actively being swept
Not receiving Beacon beacon frames when retouching will be successively in each channels broadcast Probe Request probe requests, all AP
Access point can all receive；The wireless terminal S0 receives the Beacon letters that the AP access points AP1 is sent in drive sweep
After marking frame, Probe Request probe requests can be sent to AP access points AP1；The wireless terminal S0 receive it is described
After the Probe Response probing response frames that AP access points AP1 is sent, it can be sent to the AP access points AP1
Authentication authentication frames；The wireless terminal S0 is receiving what the AP access points AP1 was sent
After Authentication Response authentication response frames, Association can be sent to the AP access points AP1
Request association request frames.
6. the method that a kind of compatible WLAN protocol of wireless local area network as claimed in claim 1 realizes Access Control, its feature exist
In：The wireless terminal SO does not receive Beacon beacon frames in active scan also can be successively in each channels broadcast Probe
Request probe requests, all AP access points can all receive this Probe Request probe request, but only eventually
The AP for having wireless terminal S0 in the list of end can just reply this Probe Request probe request, and wireless terminal SO is not due to having
Have and receive Beacon beacon frames and Probe Request probe requests transmitted by other AP access points, so wireless terminal
SO can not have found other AP access points.
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| CN110839050A (en) * | 2018-08-16 | 2020-02-25 | 中国电信股份有限公司 | Method, system and wireless access point for detecting user offline |
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