CN104023001A - Method for AC equipment to forward unauthorized message information - Google Patents
Method for AC equipment to forward unauthorized message information Download PDFInfo
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- CN104023001A CN104023001A CN201310728765.2A CN201310728765A CN104023001A CN 104023001 A CN104023001 A CN 104023001A CN 201310728765 A CN201310728765 A CN 201310728765A CN 104023001 A CN104023001 A CN 104023001A
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Abstract
The invention discloses a method for AC equipment to forward unauthorized message information, and belongs to the technical field of network access. The method comprises the following steps: the AC equipment is provided with a plurality of preset standard IP address information; the AC equipment judges the unauthorized message information to be forwarded by the AC equipment according to the plurality of preset standard IP address information; if IP address information, included in the unauthorized message information, of a corresponding web page server is matched with the standard IP address information, the AC equipment forwards the unauthorized message information; and if the IP address information, included in the unauthorized message information, of the corresponding web page server does not match with the standard IP address information, the AC equipment discards the unauthorized message information. The beneficial effects of the technical scheme are that the IP address information, which is only extracted from response message information responded by a DNS server, is taken as the standard IP address information, thereby saving human resources when the unauthorized message information is checked, and improving the usage experience of a user.
Description
Technical field
The present invention relates to network access technology field, relate in particular to the method for the unverified message information of a kind of AC device forwards.
Background technology
For access to netwoks, in actual applications, wireless controller (Access Controller, AC) need to allow the not direct access services device of site apparatus (Station, STA) through authenticating of some IP addresses in some cases.The scheme that realizes this function under prior art is: by modes such as packet capturings, artificially obtains the IP address of named web page, and on AC, configuring these IP addresses is white list IP etc.But the implementation of above-mentioned these technical schemes is all more loaded down with trivial details, need to expend many manual resources and software and hardware resources.
Chinese patent (CN102281594A) discloses a kind of message forwarding method and wireless access node, system, and described method comprises: wireless access node obtains forwarding allocation list, and described forwarding allocation list comprises type of message and pass-through mode; Described wireless access node receives the message that subscriber station sends, and obtains the type of message of described message; Described wireless access node, according to the type of message of described message and described forwarding allocation list, is determined the pass-through mode of described message; Described wireless access node encapsulates and forwards described message according to the pass-through mode of described message.Technique scheme only relates to the selection to pass-through mode, can not solve the problems of the prior art.
Chinese patent (CN101127707) discloses a kind of data forwarding method, be applicable to the scene of message transmission between STA, the method comprises: on AP, set up the forwarding-table item that records STA and AP corresponding relation, source AP receives by source STA and mails to after the message of object STA, search in self forwarding-table item and whether have the AP corresponding with object STA, if existed, the message of receiving is directly transmitted to the AP corresponding with object STA and processes; If there is no, the message repeating of receiving is processed to AC.Technique scheme is only described the forwarding data of an AP, adopts the situation of AC device forwards while not relating to a plurality of AP, cannot solve problems of the prior art.
Summary of the invention
According to the defect existing in prior art, the method for the unverified message information of a kind of AC device forwards is now provided, specifically comprise:
A method for the unverified message information of AC device forwards, comprises STA equipment and web service station; Described STA equipment is by the web page server in web service station described in AP device access; Described AP equipment is managed by an AC equipment; Described AC equipment is arranged between described AP equipment and described web service station; Described web service is also provided with a dns server in station;
Wherein, method specifically comprises:
A plurality of default standard I P address information is set in described AC equipment;
Described AC equipment, according to a plurality of described standard I P address information, judges the unverified message information by described AC device forwards:
If the IP address information of the described web page server of correspondence comprising in described unverified message information is matched with described standard I P address information, described AC equipment sends described unverified message information to described web service station;
If the IP address information of the described web page server of correspondence comprising in described unverified message information does not match described standard I P address information, described AC equipment abandons described unverified message information.
Preferably, the method for the unverified message information of this AC device forwards, wherein, the method that a plurality of default standard I P address information are set in described AC equipment specifically comprises:
Step 11, described AC equipment is monitored the message information that described dns server sends; When described AC Supervision, hearing described message information is UDP message information, goes to step 12;
Step 12, the source port of UDP message information described in described AC equipment Inspection;
If sending the source port of described UDP message information is port 53, go to step 13;
If sending the source port of described UDP message information is not port 53, carry out default subsequent treatment, return to subsequently described step 11;
Step 13, whether UDP message information is wrong described in described AC equipment Inspection;
If described UDP message information is wrong, carry out described default subsequent treatment, return to subsequently described step 11;
If described UDP message information does not have mistake, go to step 14;
Step 14, the domain-name information comprising in UDP message information described in described AC equipment Inspection;
If during in a plurality of default standardized domain name information that domain name information matches arranges in described AC equipment one, go to step 15;
If when domain name information does not match in a plurality of default standardized domain name information arranging in described AC equipment, carry out described default subsequent treatment, return to subsequently described step 11;
Step 15, the described IP address information comprising in the described UDP message information of described AC equipment is set to described standard I P address information; Return to subsequently described step 11.
Preferably, the method for the unverified message information of this AC device forwards, wherein, described step 2 specifically comprises:
Step 21, described AC equipment is monitored by the message information of described AC device forwards, if described AC Supervision is heard described message information, is unverified message information, goes to step 22;
Step 22, the type of the described unverified message information of described AC equipment judgement:
If the type matching of described unverified message, in default type, goes to step 23;
If the type of described unverified message does not match default type, described AC equipment abandons described unverified message, returns to subsequently described step 21;
Step 23, the described IP address information corresponding to described web page server comprising in the described unverified message information of described AC equipment judgement;
If described IP address information is matched with described standard I P address information, described AC equipment sends described unverified message information to described web service station, returns to subsequently described step 21;
If described IP address information does not match described standard I P address information, described AC equipment abandons described unverified message information, returns to subsequently described step 21.
Preferably, the method for the unverified message information of this AC device forwards, wherein, in described step 22, described type comprises HTTP type of message and HTTPS type of message.
Preferably, the method for the unverified message information of this AC device forwards, wherein, in described step 23, when described STA equipment sends described message information to described web page server, described IP address information is object IP address information; When described web page server sends described message information to described STA equipment, described IP address information is source IP address information.
Preferably, the method of the unverified message information of this AC device forwards, wherein, during request message information that the described message information sending when described dns server sends corresponding to described STA equipment, described default subsequent treatment is: described AC equipment is to message information described in described STA device forwards.
Preferably, the method for the unverified message information of this AC device forwards, wherein, before the described message information that described AC equipment starts at the described dns server of monitoring, sends request message information to the described dns server with default described standardized domain name information.
Preferably, the method of the unverified message information of this AC device forwards, wherein, during request message information that the described message information sending when described dns server sends corresponding to described AC equipment, described default subsequent treatment is: described AC equipment abandons described message information.
The beneficial effect of technique scheme is: the response message information of only responding from dns server, extract IP address information as standard I P address information, can, in checking unverified message information time human-saving resource, promote user's experience.
Accompanying drawing explanation
Fig. 1 is in preferred embodiment of the present invention, adopts the foundation structure schematic diagram of the method for the unverified message information of AC device forwards;
Fig. 2 is in preferred embodiment of the present invention, the overall procedure schematic diagram of the unverified message information of a kind of AC device forwards;
Fig. 3 is in preferred embodiment of the present invention, and the schematic flow sheet of default standard I P address information is set;
Fig. 4 is in preferred embodiment of the present invention, match-on criterion IP address information the schematic flow sheet forwarding.
Embodiment
As shown in Figure 1, a kind of network access system in preferred embodiment of the present invention specifically comprises STA equipment, AP(Access Point, WAP (wireless access point)) equipment, AC equipment and web service station.STA equipment is by AP device access web service station (sending message information) to web service station, in web service station, be provided with a DNS(Domain Name Service, domain name resolution server) server, accordingly, in web service station, be provided with a web page server (http server).Owing to may have a plurality of STA equipment in a network system, and a plurality of AP equipment, therefore, adopt the above-mentioned a plurality of AP equipment of AC equipment control.AC equipment is arranged between AP equipment and web service station, and AC equipment can be controlled STA equipment and manages to the data flow between web service station by controlling AP equipment, also can read the response message that the dns server in web service station returns.Particularly, the message information that AC equipment sends according to dns server is determined a white list that comprises authentication-exempt IP address, and judges whether to forward by the unverified message of AC equipment according to this white list.
In preferred embodiment of the present invention, want that the goal of the invention that reaches is actual is: by specifying one or more websites (being web page server), make any STA equipment (no matter whether having passed through authentication) all can access this website; Therefore, hereinafter described unverified message information is the website that pointer need to be accessed certain, the message information that the not message information of the STA equipment transmission of process authentication, or web page server returns., whether AC equipment need to pass through the above-mentioned unverified message information of described AC equipment with certain rule judgment, and concrete steps as shown in Figure 2, comprising:
Step 1: a plurality of default standard I P address information is set in AC equipment;
Step 2:AC equipment, according to a plurality of standard I P address information, judges the unverified message information by AC equipment:
If the IP address information of the corresponding web page server comprising in unverified message information is matched with standard I P address information, the unverified message information of AC device forwards;
If the IP address information of the corresponding web page server comprising in unverified message information does not match standard I P address information, AC equipment does not forward this unverified message information.
In preferred embodiment of the present invention, step 1 and step 2 are all to circulate: in step 1, and AC equipment circulation searching IP address information, and standard compliant IP address information is set to standard I P address information; In an IP address information question blank of establishing, be constantly added to standard compliant IP address information in AC equipment.
In preferred embodiment of the present invention, when STA equipment sends unverified message information to web page server, above-mentioned IP address information is the object IP address information that unverified message information comprises; When web page server returns to unverified message information to STA equipment, above-mentioned IP address information is the source IP address information that unverified message information comprises.
In step 2, AC equipment is constantly monitored the message information through AC equipment, and judge whether this message information is that unverified message information (does not pass through the message information of IP address verification, illustrate that one is not just being attempted to access this web page server through the STA equipment of web page server authentication, or web page server is just attempting to return corresponding message information), when AC monitoring of equipment to unverified message information, this AC equipment starts this unverified message information to judge, and determines whether to forward this unverified message information.
In preferred embodiment of the present invention, as shown in Figure 3, above-mentioned steps 1 is further elaborated:
Step 11, AC equipment is monitored the message information that dns server sends; When AC Supervision, hearing message information is UDP message information, goes to step 12;
In preferred embodiment of the present invention, above-mentioned UDP message information is at udp protocol (User Datagram Protocol, User Datagram Protocol) the lower message information sending, the Main Function of udp protocol is that the form that network message is compressed into packet sends.
Step 12, the source port of AC equipment Inspection UDP message information;
If sending the source port of UDP message information is port 53, go to step 13;
If sending the source port of UDP message information is not port 53, carry out default subsequent treatment, return to subsequently step 11;
In preferred embodiment of the present invention, port 53 is for receiving the port sequence number of DNS message information, the port sequence number of serving for support region name analysis.
Step 13, whether AC equipment Inspection UDP message information is wrong;
If UDP message information is wrong, carry out default subsequent treatment, return to subsequently step 11;
If UDP message information does not have mistake, go to step 14;
In preferred embodiment of the present invention, in the situation that network environment is not so good, the data packet transmission under udp protocol is easy to occur the mistake phenomenons such as packet loss, therefore, before the UDP message information under udp protocol judges, need to verify the correctness of this UDP message information.
Step 14, the domain-name information comprising in AC equipment Inspection UDP message information;
If when domain-name information is matched with in a plurality of default standardized domain name information arranging in AC equipment, go to step 15;
If when domain-name information does not match in a plurality of default standardized domain name information arranging in AC equipment, carry out default subsequent treatment, return to subsequently step 11;
In preferred embodiment of the present invention, in AC equipment, be provided with a plurality of standardized domain name information, a standardized domain name information inquiry table is set in AC equipment.
Step 15, the IP address information comprising in AC equipment UDP message information is set to standard I P address information; Return to subsequently step 11.
Generally, when having request message to be sent to dns server, dns server just can send a corresponding message information to response to AC equipment.And in preferred embodiment of the present invention, the situation that sends request message to dns server has two kinds: 1) STA equipment sends request message information to dns server; 2) AC equipment initiatively sends request message information to dns server.Therefore, correspondingly, " default subsequent treatment " in above-mentioned steps is also divided into two kinds of situations:
1) in normal website visiting process, STA equipment can send to dns server the request message information of a request analysis domain name, and dns server, according to this request message information, returns to a corresponding message information to STA equipment.Therefore, in this case, above-mentioned default subsequent treatment is: AC equipment is to STA device forwards message information.No matter in the result of above-mentioned each deterministic process, judge successfully or failure, AC equipment is all responsible for message information to be forwarded back in STA equipment.
2) while preserving default standardized domain name information in AC equipment, AC equipment is initiatively to the dns server request message information with this default standardized domain name information, and dns server can be responded a message information equally.In this case, above-mentioned default subsequent treatment is: when the result of above-mentioned deterministic process is for after judging unsuccessfully, AC equipment directly abandons this message information, without to this message information of STA device forwards.
Similarly, in preferred embodiment of the present invention, as shown in Figure 4, above-mentioned steps 2 is further elaborated:
Step 21, AC equipment is monitored by the message information of AC device forwards, if AC Supervision is heard message information, is unverified message information, goes to step 22;
In preferred embodiment of the present invention, AC equipment continues to monitor the message information being sent by STA equipment that AP receives, if AC Supervision is heard STA equipment, has sent a unverified message information, and AC equipment carries out following judgement to this unverified message information;
Step 22, AC equipment judges the type of unverified message information:
If the type matching of unverified message, in default type, goes to step 23;
If the type of unverified message does not match default type, AC equipment abandons unverified message, returns to subsequently step 21;
In preferred embodiment of the present invention, above-mentioned default type is HTTP type of message, or HTTPS type of message.Above-mentioned HTTP S type of message is the secret type of message (being the SSL encryption type of HTTP) of HTTP type of message.
Step 23, AC equipment judges the IP address information of the corresponding web page server comprising in unverified message information;
If IP address information is matched with standard I P address information, AC equipment sends unverified message information to web service station equipment, returns to subsequently step 21;
If IP address information does not match standard I P address information, AC equipment abandons unverified message information, returns to subsequently step 21.
In preferred embodiment of the present invention, when above-mentioned IP address information and preserve certain the standard I P address information matches between the question blank of standard I P address information, AC equipment thinks that the above-mentioned unverified message information that includes this IP address information can be forwarded.
The foregoing is only preferred embodiment of the present invention; not thereby limit embodiments of the present invention and protection range; to those skilled in the art; should recognize that being equal to that all utilizations specification of the present invention and diagramatic content done replace and the resulting scheme of apparent variation, all should be included in protection scope of the present invention.
Claims (8)
1. a method for the unverified message information of AC device forwards, comprises STA equipment and web service station; Described STA equipment is by the web page server in web service station described in AP device access; Described AP equipment is managed by an AC equipment; Described AC equipment is arranged between described AP equipment and described web service station; Described web service is also provided with a dns server in station;
It is characterized in that, method specifically comprises:
A plurality of default standard I P address information is set in described AC equipment;
Described AC equipment, according to a plurality of described standard I P address information, judges the unverified message information by described AC device forwards:
If the IP address information of the described web page server of correspondence comprising in described unverified message information is matched with described standard I P address information, described AC equipment sends described unverified message information to described web service station;
If the IP address information of the described web page server of correspondence comprising in described unverified message information does not match described standard I P address information, described AC equipment abandons described unverified message information.
2. the method for the unverified message information of AC device forwards as claimed in claim 1, is characterized in that, the method that a plurality of default standard I P address information are set in described AC equipment specifically comprises:
Step 11, described AC equipment is monitored the message information that described dns server sends; When described AC Supervision, hearing described message information is UDP message information, goes to step 12;
Step 12, the source port of UDP message information described in described AC equipment Inspection;
If sending the source port of described UDP message information is port 53, go to step 13;
If sending the source port of described UDP message information is not port 53, carry out default subsequent treatment, return to subsequently described step 11;
Step 13, whether UDP message information is wrong described in described AC equipment Inspection;
If described UDP message information is wrong, carry out described default subsequent treatment, return to subsequently described step 11;
If described UDP message information does not have mistake, go to step 14;
Step 14, the domain-name information comprising in UDP message information described in described AC equipment Inspection;
If during in a plurality of default standardized domain name information that domain name information matches arranges in described AC equipment one, go to step 15;
If when domain name information does not match in a plurality of default standardized domain name information arranging in described AC equipment, carry out described default subsequent treatment, return to subsequently described step 11;
Step 15, the described IP address information comprising in the described UDP message information of described AC equipment is set to described standard I P address information; Return to subsequently described step 11.
3. the method for the unverified message information of AC device forwards as claimed in claim 1, is characterized in that, described step 2 specifically comprises:
Step 21, described AC equipment is monitored by the message information of described AC device forwards, if described AC Supervision is heard described message information, is unverified message information, goes to step 22;
Step 22, the type of the described unverified message information of described AC equipment judgement:
If the type matching of described unverified message, in default type, goes to step 23;
If the type of described unverified message does not match default type, described AC equipment abandons described unverified message, returns to subsequently described step 21;
Step 23, the described IP address information corresponding to described web page server comprising in the described unverified message information of described AC equipment judgement;
If described IP address information is matched with described standard I P address information, described AC equipment sends described unverified message information to described web service station, returns to subsequently described step 21;
If described IP address information does not match described standard I P address information, described AC equipment abandons described unverified message information, returns to subsequently described step 21.
4. the method for the unverified message information of AC device forwards as claimed in claim 3, is characterized in that, in described step 22, described type comprises HTTP type of message and HTTPS type of message.
5. the method for the unverified message information of AC device forwards as claimed in claim 3, is characterized in that, in described step 23, when described STA equipment sends described message information to described web page server, described IP address information is object IP address information; When described web page server sends described message information to described STA equipment, described IP address information is source IP address information.
6. the method for the unverified message information of AC device forwards as claimed in claim 2, it is characterized in that, during request message information that the described message information sending when described dns server sends corresponding to described STA equipment, described default subsequent treatment is: described AC equipment is to message information described in described STA device forwards.
7. the method for the unverified message information of AC device forwards as claimed in claim 2, it is characterized in that, before the described message information that described AC equipment starts at the described dns server of monitoring, to the described dns server with default described standardized domain name information, send request message information.
8. the method for the unverified message information of AC device forwards as claimed in claim 7, it is characterized in that, during request message information that the described message information sending when described dns server sends corresponding to described AC equipment, described default subsequent treatment is: described AC equipment abandons described message information.
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| CN201310728765.2A CN104023001B (en) | 2013-12-25 | 2013-12-25 | Method for AC equipment to forward unauthorized message information |
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| CN201310728765.2A CN104023001B (en) | 2013-12-25 | 2013-12-25 | Method for AC equipment to forward unauthorized message information |
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| CN104023001B CN104023001B (en) | 2017-04-26 |
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| CN105491045A (en) * | 2015-12-09 | 2016-04-13 | 福建星网锐捷网络有限公司 | Authentication-free access control method, apparatus, device and system |
| CN105592046A (en) * | 2015-08-25 | 2016-05-18 | 杭州华三通信技术有限公司 | Authentication-free access method and device |
| CN107979655A (en) * | 2017-09-29 | 2018-05-01 | 新华三技术有限公司 | Access control method, access control apparatus and access device |
| CN108809892A (en) * | 2017-04-27 | 2018-11-13 | 贵州白山云科技有限公司 | A kind of IP white lists generation method and device |
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| CN104023001B (en) | 2017-04-26 |
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