CN106535170A - Cloud access controller (AC) finding method and system of wireless access equipment - Google Patents
Cloud access controller (AC) finding method and system of wireless access equipment Download PDFInfo
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- CN106535170A CN106535170A CN201610929851.3A CN201610929851A CN106535170A CN 106535170 A CN106535170 A CN 106535170A CN 201610929851 A CN201610929851 A CN 201610929851A CN 106535170 A CN106535170 A CN 106535170A
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- Prior art keywords
- cloud
- reception device
- radio reception
- address
- message data
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/26—Network addressing or numbering for mobility support
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- 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
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/12—Setup of transport tunnels
Abstract
The invention provides a cloud access controller (AC) finding method and a cloud AC finding system of wireless access equipment. The method comprises the following steps: S1, the wireless access equipment sends address request message data in a multicasting manner; S2, a cloud AC monitors whether the address request message data is introduced into at least one preset port, and if yes, a step S3 is executed; S3, the cloud AC detects whether the address request message data has a preset field, and if yes, information of the cloud AC is sent to the wireless access equipment; and S4, the wireless access equipment configures the information of the cloud AC for achieving wireless access.
Description
Technical field
The present invention relates to WLAN field, particularly a kind of method and system of radio reception device discovery cloud AC.
Background technology
In WLAN（Wireless Local Area Networks, abbreviation WLAN）In, including wireless network control
Device processed（Access Controller, abbreviation AC）And can wireless access to AC WAP（Access Point, referred to as
AP）.WAP（AP）Two kinds can be divided into, one kind is radio network gateway（" thin " AP）, equivalent to the line concentration in cable network
Device；Another kind is wireless router（" fat " AP）, with two interfaces of WAN, LAN, Dynamic Host Configuration Protocol server, DNS and MAC can be supported
Address is cloned, also with security functions such as VPN accesses, fire walls.
WLAN is built, is needed several wireless routers（AP）Wireless access radio network controller（AC）,
Generally comprise the steps：Step S901, AP obtain the IP address of itself.Step S902, AP obtain the IP address of AC, Ke Yitong
Cross the option options of DHCP, configure the IP address that the modes such as static ip address, broadcast obtain AC.Step S903, AP broadcast
Mode sends DiscoveryRequest messages, invites message to include AP models, software and hardware information etc..Step S904, AC are received
To after DiscoveryRequest messages, a DiscoveryResponse message is sent to AP, back message includes AC names
Title, software and hardware information etc..Step S905, after AP receives DiscoveryResponse messages, sends one to AC
JionRequest messages, request are added.Step S906, AP and AC set up CAPWAP tunnel, transmission of configuration information and data.AC
There is an independent communication port, i.e. CAPWAP tunnel between each AP of the AC with associating, this is a kind of point-to-point
Tunnel, AC realize the management to every AP with control by the CAPWAP tunnel.
Mobile Access Control cloud platform（Mobile Access Control Cloud, abbreviation MACC or cloud AC）, and nothing
Line network controller（AC）One kind, by wlan network control the second line of a couplet all WAPs（AP）, realize to wireless network
The centralized planning of network and deployment, including equipment radio configuration, device authentication are configured, access resources control, user management are controlled, set
Seven basic configuration functions such as standby management configuration, device log configuration and device systems configuration and record each configuration item and grasp
The configuration operation log recording function of the relevant information of work.
AP obtains the IP address of cloud AC, obtains automatically the IP address of cloud AC typically using DHCP, when address is obtained,
With special field inside DHCP packets（Option43 fields）To AP, the data that AP is parsed in this field are obtained automatically
Take the IP address of cloud AC.However, the premise for obtaining the IP address of cloud AC in this way distributes the Dynamic Host Configuration Protocol server of address to AP
That special field must be configured in advance（Option43 fields）If the Dynamic Host Configuration Protocol server is not configured in advance
Option43 fields are crossed, AP cannot just obtain the IP address of cloud AC, and AP just cannot normally access cloud AC.
The content of the invention
It is an object of the present invention to provide a kind of method that radio reception device finds cloud AC, to solve in prior art
The technical problem such as big to Dynamic Host Configuration Protocol server degree of dependence height, bandwidth consumption.
For achieving the above object, the present invention provides a kind of method that radio reception device finds cloud AC, comprises the steps：
Step S1）Radio reception device sends Address requests message data with multicast mode；Step S2）Cloud AC monitors at least one default end
Whether mouth has Address requests message data incoming, if having, execution step S3）；Step S3）The cloud AC detects the Address requests
Whether there is a preset field in message data, if having, the information of the cloud AC is sent to the radio reception device；And step
S4）The radio reception device configures the information of the cloud AC, realizes wireless access.
Further, step S1）Comprise the steps：Step S101）Radio reception device current IP address is obtained,
Current IP address is judged for dynamic URL or static state URL；If static state URL, execution step S102）；If dynamic URL, perform
Step S104）；Step S102）Detect whether there is dhcpc processes, if so, execution step S103）；If it is not, execution step
S104）；Step S103）The option43 fields that Dynamic Host Configuration Protocol server is sent are judged whether, if it is not, execution step S104）；Step
Rapid S104）An at least Address requests message data is sent with multicast mode periodic, until receiving the reply message of the cloud AC
Till data.
Further, step S2）Comprise the steps：Step S201）Least one set is pre-set in cloud AC and broadcasts ground
Location and at least one default port；Step S202）Cloud AC monitors whether the default port has the address of the correspondence multicast address
Request message data are incoming.
Further, step S3）Comprise the steps：Step S301）The cloud AC parses the Address requests report
Literary data；Step S302）One preset field is contrasted with the Address requests message data, the Address requests message number is judged
Whether there is the preset field according in；If so, execution step S303）；Step S303）The information of the cloud AC is sent to described
Radio reception device.
Further, step S4）Comprise the steps：Step S401）The radio reception device obtains the cloud
The information of AC；Step S402）A JionRequest message data is sent to the cloud AC, request accesses the cloud AC；And
Step S403）The radio reception device sets up CAPWAP tunnel with the cloud AC.
For achieving the above object, the present invention also provides the system that a kind of radio reception device finds cloud AC, including wirelessly connecing
Enter equipment and cloud AC, radio reception device is for multicast mode transmission Address requests message data；Cloud AC, for monitoring at least
Whether one default port has Address requests message data incoming；If having, in detecting the Address requests message data, whether have one
Preset field；If having, the information of the cloud AC is sent to the radio reception device；Wherein, the radio reception device is also used
In the information for configuring the cloud AC, wireless access is realized.
Further, the radio reception device includes IP address judging unit, dhcpc process detection units, option
Field judging unit and Address requests packet sending unit.The IP address judging unit is worked as obtaining radio reception device
Front IP address, and current IP address is judged for dynamic URL or static state URL；The dhcpc process detections unit for detection be
It is no to there is dhcpc processes；The option fields judging unit is used to judge whether what Dynamic Host Configuration Protocol server was sent
Option43 fields；The Address requests packet sending unit is for multicast mode periodic transmission Address requests message number
According to.
Further, the cloud AC includes that least one set broadcasts address, at least one default port and monitoring unit, described group
Broadcast address and the default port to be pre-set in cloud AC；The monitoring unit is used to monitor whether the default port has right
Answer the Address requests message data of the multicast address incoming.
Further, the cloud AC includes packet parsing unit and field comparison unit, and the packet parsing unit is used for
Parse the Address requests message data；The field comparison unit, for by a preset field and the Address requests message
Data Comparison；For judging to whether there is the preset field in the Address requests message data；If so, send the cloud AC
Information to the radio reception device.
Further, the radio reception device include cloud AC information acquisition units, access request packet sending unit and
CAPWAP tunnel sets up unit.The cloud AC information acquisition units are used for the information for obtaining the cloud AC.The access request report
Literary transmitting element, for sending a JionRequest message to the cloud AC, request accesses the cloud AC.The CAPWAP
Tunnel building unit is for setting up CAPWAP tunnel with the cloud AC.
It is an advantage of the current invention that dedicated router（Such as business class router）AP and AC be it is matching used, it is set of
AP can arrange identical or corresponding multicast address and port with AC；The two can be caused to realize as early as possible without the need for excessive configuration logical
Letter；The dependence to Dynamic Host Configuration Protocol server can be broken away from, it is convenient to manage.Request message is sent with multicast mode and as can reduce right as possible
The consumption of the network bandwidth, and multicast propagates in a LAN and the equipment of other LANs will not be impacted.Setting up
It is during communication, less to the occupancy of Internet resources, effectively save bandwidth.
Description of the drawings
Fig. 1 is the FB(flow block) of the method for radio reception device discovery cloud AC in the embodiment of the present invention；
Fig. 2 is the FB(flow block) of radio reception device transmission Address requests message in the embodiment of the present invention；
FB(flow block)s of the Fig. 3 for embodiment of the present invention medium cloud AC preset monitoreds port；
Fig. 4 be detect Address requests message data in the embodiment of the present invention in whether have the FB(flow block) of preset field；
Fig. 5 is the FB(flow block) of the information configuration of embodiment of the present invention medium cloud AC to radio reception device；
Fig. 6 is a kind of structured flowchart of the system of radio reception device discovery cloud AC in the embodiment of the present invention.
Specific embodiment
The preferred embodiments of the present invention are introduced below with reference to Figure of description, it was demonstrated that the present invention can be implemented, the embodiment
Can be to those of skill in the art's complete description present invention so as to which technology contents are more clear and readily appreciate.The present invention
Can be emerged from by the embodiment of many multi-forms, the reality that protection scope of the present invention is mentioned in being not limited only to text
Apply example.
As shown in figure 1, the present invention provides a kind of method that radio reception device finds cloud AC, including following each step.
The radio reception device includes but is not limited to wireless router.
Step S1）Radio reception device sends Address requests message data with multicast mode, as shown in Fig. 2 specifically including
Following steps：Step S101）Radio reception device current IP address is obtained, and current IP address is judged for dynamic URL or static state
URL；If static state URL, execution step S102）；If dynamic URL, execution step S104）；Step S102）Detect whether exist
Dhcpc processes, if so, send out message informing dhcpc processes（Detect before sending out message that AP is the address under dhcp patterns）, hold
Row step S103）；If it is not, execution step S104）；Step S103）Judge whether the option43 that Dynamic Host Configuration Protocol server is sent
Field.If it is not, execution step S104）；If so, execution step S105）.Step S104）Sent at least with multicast mode periodic
One Address requests message data, till the reply message data of the cloud AC is received.Step S104）In, start or again
Start discoverac processes, no matter discoverac processes are with the presence or absence of being all pull-up again, can so avoid repeating to insert
Occurs the situation of multiple discoverac processes in the case of pulling out WAN mouths；After discoverac process initiations, sent with multicast mode
One Address requests message；T at regular intervals（It is preferred that 1000ms）An Address requests message is sent, until receiving cloud AC responses is
Only.The Address requests message includes multicast ip address, communication port numbers, radio reception device IP address and software and hardware information.
Step S105）The radio reception device parses the information of cloud AC from the option43 fields.Step S106）The nothing
Line access device option43 fields automatically configure cloud AC addresses, send out message to SSK, the address configuration of cloud AC is gone down.
Step S2）Cloud AC monitors whether at least one default port has Address requests message data incoming, if having, execution step
S3）.As shown in figure 3, step S2）Comprise the steps：Step S201）Pre-set in cloud AC least one set broadcast address and
At least one default port；Step S202）Cloud AC monitors whether the default port has the Address requests of the correspondence multicast address
Message data is incoming.In the present embodiment, the multicast packets band discoverac fields that AP sends are detected for server, in preventing network
There are other processes also to be communicated with this address and port.
Step S3）Whether the cloud AC has a preset field in detecting the Address requests message data, if having, sends institute
The information of cloud AC is stated to the radio reception device, preferred mode of unicast；The information of the cloud AC includes the IP address of cloud AC, leads to
Letter port numbers and SSL open situation.As shown in figure 4, step S3）Comprise the steps：Step S301）The cloud AC parsings
The Address requests message data；Step S302）One preset field is contrasted with the Address requests message data, judges described
Whether there is the preset field in Address requests message data, the preset field is cjson formatted datas；If so, perform
Step S303）；If it is not, execution step S304）；Step S303）The information of the cloud AC is sent to the radio reception device, it is excellent
Menu broadcast mode.AC servers receive multicast packets and parse the IP and port numbers for sending multicast packets AP, and being replied with mode of unicast should
AP equipment, prevents from impacting miscellaneous equipment.Step S304）Refusal sends the information of cloud AC to the radio reception device.
Step S4）The radio reception device configures the information of the cloud AC, realizes wireless access.As shown in figure 5, described
Step S4）Comprise the steps：Step S401）The radio reception device obtains the information of the cloud AC, cloud AC's herein
Information is using step S3）Obtain.Step S402）The radio reception device sends one to the cloud AC
JionRequest message datas, request access the cloud AC；Step S403）The radio reception device is set up with the cloud AC
CAPWAP tunnel.
The recipient of multicast is exactly AC servers, because radio reception device, particularly business class router AP and AC are
It is matching used, there is AP just to have substantially the presence of AC, use and configuration need not be also needed to as dhcp is had found automatically, it is convenient
Management.Request message is sent with multicast and can reduce the consumption to the network bandwidth as far as possible, and multicast is passed in a LAN
Broadcast and the equipment of other LANs will not be impacted.Discoverac processes perform the stream that multicast finds, discoverac enters
Journey is pulled up the random number that can be produced in 1 1000ms after coming, and such as x when reaching xms, sends multicast message, without receipts
To cloud AC responses in the case of, press（x + 1000*n）Ms enters line period transmission, until receiving cloud AC responses；Discoverac enters
Journey produces random number x after getting up, and presses（x + 1000*n）Ms enters line period and sends rather than send multicast packets always, so may be used
To reduce the occupancy of Internet resources.
Wherein, the message of transmission is cjson forms, and the information of cjson forms is easy to be extended and parse conveniently, if below
Still wanting to add what information to only need to add in cjson just can be with；" discover " message, content are taken in sending message
For " discoverac ", AC servers listen to the multicast address that AP sends multicast packets（225.0.0.37）, port numbers 6787 have
Message, and message has other processes also to be entered with this address and port to be replied after discoverac again in preventing network
Row communication；AC servers receive multicast packets and parse the IP and port numbers for sending multicast packets AP, and unicast is replied the AP equipment, prevented
Miscellaneous equipment is impacted；After discoverac processes receive the multicast packets reply that AC servers are sent, report is parsed
In text, the AC addresses of band, COM1 and ssl open situation and organizing messages are sent to ssk；Ssk processes receive discoverac
Message after, AC addresses, COM1 and ssl unlatching situation is parsed and is configured in MDM just can be with.
As shown in fig. 6, the present invention also provides the system that a kind of radio reception device finds cloud AC, including radio reception device
1 and cloud AC2.
Radio reception device 1 is for multicast mode transmission Address requests message data.It is pre- that cloud AC2 is used for monitoring at least
If whether port has Address requests message data incoming；If having, in detecting the Address requests message data, whether have one to preset
Field；If having, the information of the cloud AC is sent to the radio reception device；Wherein, the radio reception device is additionally operable to match somebody with somebody
The information of the cloud AC is put, wireless access is realized.
Radio reception device 1 includes that IP address judging unit 11, dhcpc process detections unit 12, option fields judge
Unit 13 and Address requests packet sending unit 14.
IP address judging unit 11 is used to obtain radio reception device current IP address, and judges current IP address for dynamic
URL or static state URL.For detecting whether there is dhcpc processes in dhcpc process detections unit 12.Option fields judge single
Unit 13 is used to judge whether the option43 fields that Dynamic Host Configuration Protocol server is sent.Address requests packet sending unit 14 for
Multicast mode periodic sends Address requests message data.
Cloud AC2 includes that least one set broadcasts address, at least one default port 21 and monitoring unit 22, the multicast address and
Default port 21 is pre-set in cloud AC2.Cloud AC2 also includes packet parsing unit 23 and field comparison unit 24.
Monitoring unit 22 is used to monitor whether the default port has the Address requests message number of the correspondence multicast address
According to incoming.Packet parsing unit 23 is used to parse the Address requests message data.Field comparison unit 24 is for one is preset
Field is contrasted with the Address requests message data；For judging in the Address requests message data with the presence or absence of described default
Field；If so, the information of the cloud AC is sent to the radio reception device.
Radio reception device 1 also includes cloud AC information acquisition units 15, access request packet sending unit 16 and CAPWAP
Tunnel building unit 17.Cloud AC information acquisition units 15 are used for the information for obtaining the cloud AC.Access request packet sending unit
16 for sending a JionRequest message to the cloud AC, and request accesses the cloud AC.CAPWAP tunnel sets up unit 17
For setting up CAPWAP tunnel with the cloud AC.
It is an advantage of the current invention that the present invention also provides the method and system that a kind of radio reception device finds cloud AC, nothing
Need excessive configuration that radio reception device can be made to find cloud AC, and realize communication as early as possible, can break away to Dynamic Host Configuration Protocol server
Rely on, it is convenient to manage.Request message is sent with multicast mode and can reduce the consumption to the network bandwidth as far as possible, and multicast is one
Propagate in individual LAN and the equipment of other LANs will not be impacted.During communication is set up, to Internet resources
Occupancy is less, effectively saves bandwidth.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
Member, under the premise without departing from the principles of the invention, can also make some improvements and modifications, and these improvements and modifications also should be regarded as
Protection scope of the present invention.
Claims (10)
1. a kind of method that radio reception device finds cloud AC, it is characterised in that comprise the steps：
Step S1）Radio reception device sends Address requests message data with multicast mode；
Step S2）Cloud AC monitors whether at least one default port has Address requests message data incoming, if having, execution step S3）；
Step S3）Whether the cloud AC has a preset field in detecting the Address requests message data, if having, sends the cloud
The information of AC is to the radio reception device；And
Step S4）The radio reception device configures the information of the cloud AC, realizes wireless access.
2. the method that the radio reception device described in claim 1 finds cloud AC, it is characterised in that step S1）Including such as
Lower step：
Step S101）Radio reception device current IP address is obtained, and current IP address is judged for dynamic URL or static state URL；If
It is static URL, execution step S102）；If dynamic URL, execution step S104）；
Step S102）Detect whether there is dhcpc processes；If so, execution step S103）；If it is not, execution step S104）；
Step S103）Judge whether the option43 fields that Dynamic Host Configuration Protocol server is sent；If so, from the option43 fields
In parse the information of the cloud AC；If it is not, execution step S104）；And
Step S104）An at least Address requests message data is sent with multicast mode periodic, until receiving returning for the cloud AC
Till multiple message data.
3. the method that the radio reception device described in claim 1 finds cloud AC, it is characterised in that step S2）Including such as
Lower step：
Step S201）Least one set is pre-set in cloud AC and broadcasts address and at least one default port；And
Step S202）The Address requests message data that cloud AC monitors the default port and whether has the correspondence multicast address is passed
Enter.
4. the method that the radio reception device described in claim 1 finds cloud AC, it is characterised in that step S3）Including such as
Lower step：
Step S301）The cloud AC parses the Address requests message data；
Step S302）One preset field is contrasted with the Address requests message data, the Address requests message data is judged
In whether there is the preset field；If so, execution step S303）；And
Step S303）The information of the cloud AC is sent to the radio reception device.
5. the method that the radio reception device described in claim 1 finds cloud AC, it is characterised in that step S4）Including such as
Lower step：
Step S401）The radio reception device obtains the information of the cloud AC；
Step S402）A JionRequest message data is sent to the cloud AC, request accesses the cloud AC；And
Step S403）The radio reception device sets up CAPWAP tunnel with the cloud AC.
6. the system that a kind of radio reception device finds cloud AC, it is characterised in that include
Radio reception device, for sending Address requests message data with multicast mode；
Cloud AC, is used for
Monitor whether at least one default port has Address requests message data incoming；If having,
Whether a preset field is had in detecting the Address requests message data；If having,
The information of the cloud AC is sent to the radio reception device；
Wherein, the radio reception device is additionally operable to the information for configuring the cloud AC, realizes wireless access.
7. the system that the radio reception device described in claim 6 finds cloud AC, it is characterised in that the radio reception device bag
Include
IP address judging unit, is used for
Obtain radio reception device current IP address；
Current IP address is judged for dynamic URL or static state URL；
Dhcpc process detection units, are used for
Detect whether there is dhcpc processes；
Option field judging units, are used for
Judge whether the option43 fields that Dynamic Host Configuration Protocol server is sent；And
Address requests packet sending unit, is used for
Address requests message data is sent with multicast mode periodic.
8. the system that the radio reception device described in claim 6 finds cloud AC, it is characterised in that the cloud AC includes
Least one set broadcasts address, is pre-set in cloud AC；
At least one default port, is pre-set in cloud AC；And
Monitoring unit, is used for
Monitor whether the default port has the Address requests message data of the correspondence multicast address incoming.
9. the system that the radio reception device described in claim 6 finds cloud AC, it is characterised in that the cloud AC includes
Packet parsing unit, is used for
Parse the Address requests message data；And
Field comparison unit, is used for
One preset field is contrasted with the Address requests message data；
Whether there is the preset field in judging the Address requests message data；If so, send the information of the cloud AC extremely
The radio reception device.
10. the system that the radio reception device described in claim 6 finds cloud AC, it is characterised in that the radio reception device
Including
Cloud AC information acquisition units, are used for
Obtain the information of the cloud AC；
Access request packet sending unit, is used for
A JionRequest message is sent to the cloud AC, request accesses the cloud AC；And
CAPWAP tunnel sets up unit, is used for
CAPWAP tunnel is set up with the cloud AC.
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| CN113453250B (en) * | 2021-05-25 | 2023-12-26 | 新华三技术有限公司成都分公司 | Cloud AP configuration method and cloud management platform |
| CN115348237A (en) * | 2022-08-04 | 2022-11-15 | 广西电网有限责任公司百色供电局 | IP address configuration method and AP equipment |
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