CN106411882A - Method and device for accessing network by client - Google Patents
Method and device for accessing network by client Download PDFInfo
- Publication number
- CN106411882A CN106411882A CN201610858462.6A CN201610858462A CN106411882A CN 106411882 A CN106411882 A CN 106411882A CN 201610858462 A CN201610858462 A CN 201610858462A CN 106411882 A CN106411882 A CN 106411882A
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- Prior art keywords
- address
- dynamic
- host configuration
- configuration protocol
- addressing
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
- H04L63/0876—Network architectures or network communication protocols for network security for authentication of entities based on the identity of the terminal or configuration, e.g. MAC address, hardware or software configuration or device fingerprint
-
- 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
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/10—Network architectures or network communication protocols for network security for controlling access to devices or network resources
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Hardware Design (AREA)
- Computer Security & Cryptography (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Small-Scale Networks (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The embodiment of the invention discloses a method and device for accessing a network by a client and relates to the technical field of the internet. The method and the device are applied to an AC (Access Controller). The method comprises the steps of obtaining an IP (Internet Protocol) address of the client; detecting whether the IP address is a dynamic IP address or not; allowing the client to access the network if the IP address is the dynamic IP address; and refusing the client to access the network if the IP address is not the dynamic IP address. Through application of the embodiment of the method and the device, the normal access of the legal client to the network can be ensured, and the legal client is protected from unnecessary losses and potential safety hazards.
Description
Technical field
The present invention relates to Internet technical field, particularly to a kind of method and device of client access network.
Background technology
When by AC (Access Controller, access controller) access network, AC needs according to client client
IP (Internet Protocol, the procotol) address at end is authenticated to client, after certification is passed through, just allows this visitor
Family end access network.
At present, IP address is divided into dynamic IP addressing and static ip address.Wherein, dynamic IP addressing is usually by DHCP service
Device (Dynamic Host ConfigurationProtocol, DynamicHost arranges agreement) distributes, and will not produce identical IP
The problem of address；Static ip address is usually that Virtual network operator provides, changeless, and therefore, static ip address is easy to
Allow the static ip address of legitimate client illegally to be usurped, so not only shadow is caused to legitimate client normal use network
Ring, also can cause unnecessary loss and potential potential safety hazard to legitimate client simultaneously.
Content of the invention
The embodiment of the invention discloses a kind of method and device of client access network, to ensure legitimate client to net
The normal use of network, and avoid causing unnecessary loss and potential potential safety hazard to legitimate client.
For reaching above-mentioned purpose, the embodiment of the invention discloses a kind of method of client access network, it is applied to AC, institute
The method of stating includes：
Obtain the IP address of client；
Detect whether described IP address is dynamic IP addressing；
If it is, allowing described client access network；
If not, refusing described client access network.
In one embodiment of the invention, described detect that whether described IP address is the step of dynamic IP addressing, including：
Whether detection is locally configured with Dynamic Host Configuration Protocol server；
If it is, detecting whether described IP address is the IP address that local Dynamic Host Configuration Protocol server distributes；
If the IP address of local Dynamic Host Configuration Protocol server distribution, determine that described IP address is dynamic IP addressing；
If not the IP address of local Dynamic Host Configuration Protocol server distribution, determine that described IP address is not dynamic IP addressing.
In one embodiment of the invention, when local non-configuration DHCP server is detected, or work as described IP address
When not being the IP address that local Dynamic Host Configuration Protocol server distributes, methods described also includes：
Detect whether described IP address is the IP address that other Dynamic Host Configuration Protocol server that described AC connects distribute；
If it is, determining that described IP address is dynamic IP addressing；
If not, determining that described IP address is not dynamic IP addressing.
In one embodiment of the invention, whether the described IP address of described detection is other DHCP clothes that described AC connects
The step of the IP address of business device distribution, including：
Send query message to other Dynamic Host Configuration Protocol server that described AC connects, described query message includes described IP address；
Receive the inquiry response message that other Dynamic Host Configuration Protocol server described feed back according to described query message；
According to described inquiry response message, determine whether described IP address is the IP ground that other Dynamic Host Configuration Protocol server described distribute
Location.
In one embodiment of the invention, described detect that whether described IP address is the step of dynamic IP addressing, including：
When enabling detection function, detect whether described IP address is dynamic IP addressing；
Methods described also includes：
When being not enabled on described detection function, after the step of the described IP address obtaining client, execution is described to be permitted
The step being permitted described client access network.
For reaching above-mentioned purpose, the embodiment of the invention also discloses a kind of device of client access network, it is applied to AC,
Described device includes：
Acquiring unit, for obtaining the IP address of client；
Detector unit, for detecting whether described IP address is dynamic IP addressing；
Allow unit, for described detector unit testing result be in the case of it is allowed to described client access
Network；
Refusal unit, in the case of being no in the testing result of described detector unit, the described client of refusal accesses
Network.
In one embodiment of the invention, described detector unit, specifically for：
Whether detection is locally configured with Dynamic Host Configuration Protocol server；If it is, detecting whether described IP address is local DHCP service
The IP address of device distribution；If the IP address of local Dynamic Host Configuration Protocol server distribution, determine that described IP address is dynamic IP addressing；As
Fruit is not the IP address of local Dynamic Host Configuration Protocol server distribution, determines that described IP address is not dynamic IP addressing.
In one embodiment of the invention, described detector unit, is additionally operable to：
When local non-configuration DHCP server is detected, or when described IP address is not local Dynamic Host Configuration Protocol server distribution
During IP address, detect whether described IP address is the IP address that other Dynamic Host Configuration Protocol server that described AC connects distribute；If it is, really
Fixed described IP address is dynamic IP addressing；If not, determining that described IP address is not dynamic IP addressing.
In one embodiment of the invention, described detector unit, specifically for：
Send query message to other Dynamic Host Configuration Protocol server that described AC connects, described query message includes described IP address；
Receive the inquiry response message that other Dynamic Host Configuration Protocol server described feed back according to described query message；
According to described inquiry response message, determine whether described IP address is the IP ground that other Dynamic Host Configuration Protocol server described distribute
Location.
In one embodiment of the invention, described detector unit, specifically for：
When enabling detection function, detect whether described IP address is dynamic IP addressing；
Described permission unit, is additionally operable to when being not enabled on described detection function it is allowed to described client access network.
In embodiments of the present invention, after AC gets the IP address of client, detect whether this IP address is dynamic IP ground
Location；If dynamic IP addressing, just allow this client access network；If not dynamic IP addressing, it is, this IP address
For static ip address, then refuse described client access network, it is to avoid brought because static ip address illegally usurps
Problem it is ensured that the normal use to network for the legitimate client, and avoid to legitimate client cause unnecessary loss and
Potential potential safety hazard.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, acceptable
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of a kind of schematic flow sheet of the method for client access network provided in an embodiment of the present invention；
Fig. 2 is a kind of another kind of schematic flow sheet of the method for client access network provided in an embodiment of the present invention；
Fig. 3 is a kind of another kind of schematic flow sheet of the method for client access network provided in an embodiment of the present invention；
Fig. 4 is a kind of structural representation of the device of client access network provided in an embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation description is it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of not making creative work
Embodiment, broadly falls into the scope of protection of the invention.
Below by specific embodiment, the present invention is described in detail.
With reference to Fig. 1, Fig. 1 is that a kind of a kind of flow process of the method for client access network provided in an embodiment of the present invention is illustrated
Figure, is applied to AC, the method includes：
S101：Obtain the IP address of client；
In one embodiment of the invention, if client wants access network, AC needs this client is carried out
Portal certification, it is, client needs to send certification request to AC, AC can obtain from the certification request that client sends
Get the IP address of this client.
S102：Detect whether described IP address is dynamic IP addressing；If it is, execution S103；Otherwise, execute S104；
S103：Allow described client access network；
S104：Refuse described client access network.
In practical application, AC needs to carry out Portal certification to this client, and the safety of dynamic IP addressing is higher, quiet
The safety of state IP address is low, in order to ensure client normally using the information security of network and client, if get
IP address is dynamic IP addressing, then it is considered that this client Portal certification success is it is allowed to this client access network；If obtaining
The IP address got is not dynamic IP addressing, it is, the IP address getting is static ip address, then it is considered that this client
End Portal authentification failure, refuses this client access network.
In one embodiment of the invention, enable switch can be configured on AC, as shown in Fig. 2 the basis in Fig. 1
On, the method can also include：
S105：Detect whether to enable detection function；If it is, execution S102；Otherwise execute S103.
When there may be potential safety hazard in network, can indicate that AC enables detection function, it is, instruction AC opens inspection
Brake, whether this IP address that AC detection gets is dynamic IP addressing, to avoid the potential safety hazard in network as far as possible；And if
In network, each client is all legitimate client, there is not potential safety hazard, now can close detection function, and AC directly allows
Client access network.As such, it is possible to more neatly control client access network.
Above-mentioned dynamic IP addressing is generally the IP address of Dynamic Host Configuration Protocol server distribution, based on this, provides in the embodiment of the present invention
A kind of another kind of schematic flow sheet of the method for client access network, as shown in figure 3, in the method, S102 can include：
S1021：Whether detection is locally configured with Dynamic Host Configuration Protocol server；If it is, execution S1022；Otherwise, execute S1023；
In order to ensure client rapidly access network, can first determine detection direction, it is, whether detection locally joins
It is equipped with Dynamic Host Configuration Protocol server, if locally configured have Dynamic Host Configuration Protocol server, detect whether the IP address that this gets is local DHCP service
The IP address of device distribution, in the case of no, then detects that the IP address that this gets is that other Dynamic Host Configuration Protocol server are (permissible
It is a single equipment it is also possible to be integrated in other equipment) IP address distributed；And if local non-configuration DHCP service
Device, then can be the IP address of other Dynamic Host Configuration Protocol server distribution with direct detection.
S1022：Detect whether described IP address is the IP address that local Dynamic Host Configuration Protocol server distributes；If it is, execution
S1024；Otherwise, 1023 are executed；
The IP address of Dynamic Host Configuration Protocol server distribution all can be stored in an IP list, and the IP address getting in detection is
The no IP address for the distribution of local Dynamic Host Configuration Protocol server, can detect the IP address whether comprising in this IP list local to get,
If comprising, can determine the IP address that the IP address getting is local Dynamic Host Configuration Protocol server distribution.
In one embodiment of the invention, if there is no Dynamic Host Configuration Protocol server in the other equipment of AC connection, detecting
In the case that the IP address getting is not the IP address of local Dynamic Host Configuration Protocol server distribution, can directly determine the IP ground getting
Location is not dynamic IP addressing, refuses client access network.
S1023：Detect whether described IP address is the IP address that other Dynamic Host Configuration Protocol server that described AC connects distribute；If
It is to execute S1024；Otherwise, 1025 are executed.
In practical application, it is not to be equipped with Dynamic Host Configuration Protocol server on every AC, if non-configuration DHCP service on an AC
Device, then it is to be understood that the IP address getting may be the IP address of other Dynamic Host Configuration Protocol server distribution of this AC connection, this AC
Query message can be sent to other Dynamic Host Configuration Protocol server, this query message includes the IP address getting with simulant-client；Other
After Dynamic Host Configuration Protocol server receives this query message, inquire about the IP address whether comprising in locally-assigned IP address to get, and
According to Query Result to this AC feedback query response message；This AC, according to inquiry response message, determines that the IP address getting is
The no IP address for the distribution of other Dynamic Host Configuration Protocol server.As：If it " is not locally-assigned IP ground that all Dynamic Host Configuration Protocol server are all replied
The inquiry response message of location ", then can determine that the IP address getting is not the IP address of other Dynamic Host Configuration Protocol server distribution, refusal
Client access network；If there being Dynamic Host Configuration Protocol server to reply the inquiry response message of " being locally-assigned IP address ", can be true
Surely the IP address getting is the IP address of other Dynamic Host Configuration Protocol server distribution it is allowed to client access network.
S1024：Determine that described IP address is dynamic IP addressing；
S1025：Determine that described IP address is not dynamic IP addressing.
Application above-described embodiment, after AC gets the network ip address of client, detects whether this IP address is dynamic IP
Address；If dynamic IP addressing, just allow this client access network；If not dynamic IP addressing, it is, this IP ground
Location is static ip address, then refuse described client access network, it is to avoid brought because static ip address illegally usurps
Problem it is ensured that the normal use to network for the legitimate client, and avoid and cause unnecessary loss to legitimate client
With potential potential safety hazard.
With reference to Fig. 4, Fig. 4 is a kind of structural representation of the device of client access network provided in an embodiment of the present invention,
It is applied to AC, this device includes：
Acquiring unit 401, for obtaining the IP address of client；
Detector unit 402, for detecting whether described IP address is dynamic IP addressing；
Allow unit 403, for described detector unit testing result be in the case of it is allowed to described client termination
Enter network；
Refusal unit 404, in the case of being no in the testing result of described detector unit, refusal described client termination
Enter network.
In one embodiment of the invention, described detector unit 402, specifically can be used for：
Whether detection is locally configured with Dynamic Host Configuration Protocol server；If it is, detecting whether described IP address is local DHCP service
The IP address of device distribution；If the IP address of local Dynamic Host Configuration Protocol server distribution, determine that described IP address is dynamic IP addressing；As
Fruit is not the IP address of local Dynamic Host Configuration Protocol server distribution, determines that described IP address is not dynamic IP addressing.
In one embodiment of the invention, described detector unit 402, can be also used for：
When local non-configuration DHCP server is detected, or when described IP address is not local Dynamic Host Configuration Protocol server distribution
During IP address, detect whether described IP address is the IP address that other Dynamic Host Configuration Protocol server that described AC connects distribute；If it is, really
Fixed described IP address is dynamic IP addressing；If not, determining that described IP address is not dynamic IP addressing.
In one embodiment of the invention, described detector unit 402, specifically can be used for：
Send query message to other Dynamic Host Configuration Protocol server that described AC connects, described query message includes described IP address；
Receive the inquiry response message that described other equipment is fed back according to described query message；
According to described inquiry response message, determine that whether described IP address is that Dynamic Host Configuration Protocol server in described other equipment divides
The IP address joined.
In one embodiment of the invention, described detector unit 402, specifically can be used for：
When enabling detection function, detect whether described IP address is dynamic IP addressing；
Described permission unit 403, can be also used for when being not enabled on described detection function it is allowed to described client access network
Network.
Application above-described embodiment, after AC gets the IP address of client, detects whether this IP address is dynamic IP addressing；
If dynamic IP addressing, just allow this client access network；If not dynamic IP addressing, it is, this IP address is
Static ip address, then refuse described client access network, it is to avoid because static ip address is by asking of illegally usurping and bring
Topic is it is ensured that the normal use to network for the legitimate client, and avoids and cause unnecessary loss and latent to legitimate client
Potential safety hazard.
For device embodiment, because it is substantially similar to embodiment of the method, so description is fairly simple, related
Part illustrates referring to the part of embodiment of the method.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation are made a distinction with another entity or operation, and not necessarily require or imply these entities or deposit between operating
In any this actual relation or order.And, term " inclusion ", "comprising" or its any other variant are intended to
Comprising of nonexcludability, wants so that including a series of process of key elements, method, article or equipment and not only including those
Element, but also include other key elements being not expressly set out, or also include for this process, method, article or equipment
Intrinsic key element.In the absence of more restrictions, the key element that limited by sentence "including a ..." it is not excluded that
Also there is other identical element including in the process of described key element, method, article or equipment.
One of ordinary skill in the art will appreciate that realizing all or part of step in said method embodiment is can
Completed with the hardware instructing correlation by program, described program can be stored in computer read/write memory medium,
The storage medium obtaining designated herein, such as：ROM/RAM, magnetic disc, CD etc..
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit protection scope of the present invention.All
Any modification, equivalent substitution and improvement made within the spirit and principles in the present invention etc., are all contained in protection scope of the present invention
Interior.
Claims (10)
1. it is characterised in that being applied to access controller AC, methods described includes a kind of method of client access network：
Obtain the network protocol IP address of client；
Detect whether described IP address is dynamic IP addressing；
If it is, allowing described client access network；
If not, refusing described client access network.
2. method according to claim 1 is it is characterised in that whether the described IP address of described detection is dynamic IP addressing
Step, including：
Whether detection is locally configured with DynamicHost setting protocol DHCP server；
If it is, detecting whether described IP address is the IP address that local Dynamic Host Configuration Protocol server distributes；
If the IP address of local Dynamic Host Configuration Protocol server distribution, determine that described IP address is dynamic IP addressing；
If not the IP address of local Dynamic Host Configuration Protocol server distribution, determine that described IP address is not dynamic IP addressing.
3. method according to claim 2 is it is characterised in that when local non-configuration DHCP server is detected, or works as
When described IP address is not the IP address of local Dynamic Host Configuration Protocol server distribution, methods described also includes：
Detect whether described IP address is the IP address that other Dynamic Host Configuration Protocol server that described AC connects distribute；
If it is, determining that described IP address is dynamic IP addressing；
If not, determining that described IP address is not dynamic IP addressing.
4. method according to claim 3 is it is characterised in that whether the described IP address of described detection is that described AC connects
The step of the IP address of other Dynamic Host Configuration Protocol server distribution, including：
Send query message to other Dynamic Host Configuration Protocol server that described AC connects, described query message includes described IP address；
Receive the inquiry response message that other Dynamic Host Configuration Protocol server described feed back according to described query message；
According to described inquiry response message, determine whether described IP address is the IP address that other Dynamic Host Configuration Protocol server described distribute.
5. method according to claim 1 is it is characterised in that whether the described IP address of described detection is dynamic IP addressing
Step, including：
When enabling detection function, detect whether described IP address is dynamic IP addressing；
Methods described also includes：
When being not enabled on described detection function, after the step of the described network protocol IP address obtaining client, execute institute
State the step allowing described client access network.
6. it is characterised in that being applied to access controller AC, described device includes a kind of device of client access network：
Acquiring unit, for obtaining the network protocol IP address of client；
Detector unit, for detecting whether described IP address is dynamic IP addressing；
Allow unit, for the testing result in described detector unit be in the case of it is allowed to described client access network；
Refusal unit, in the case of being no in the testing result of described detector unit, refuses described client access network.
7. device according to claim 6 is it is characterised in that described detector unit, specifically for：
Whether detection is locally configured with DynamicHost setting protocol DHCP server；If it is, detecting that whether described IP address is
The IP address of local Dynamic Host Configuration Protocol server distribution；If the IP address of local Dynamic Host Configuration Protocol server distribution, determine that described IP address is
Dynamic IP addressing；If not the IP address of local Dynamic Host Configuration Protocol server distribution, determine that described IP address is not dynamic IP addressing.
8. device according to claim 7, it is characterised in that described detector unit, is additionally operable to：
When local non-configuration DHCP server is detected, or when described IP address is not the IP ground of local Dynamic Host Configuration Protocol server distribution
During location, detect whether described IP address is the IP address that other Dynamic Host Configuration Protocol server that described AC connects distribute；If it is, determining institute
Stating IP address is dynamic IP addressing；If not, determining that described IP address is not dynamic IP addressing.
9. device according to claim 8 is it is characterised in that described detector unit, specifically for：
Send query message to other Dynamic Host Configuration Protocol server that described AC connects, described query message includes described IP address；
Receive the inquiry response message that other Dynamic Host Configuration Protocol server described feed back according to described query message；
According to described inquiry response message, determine whether described IP address is the IP address that other Dynamic Host Configuration Protocol server described distribute.
10. device according to claim 6 is it is characterised in that described detector unit, specifically for：
When enabling detection function, detect whether described IP address is dynamic IP addressing；
Described permission unit, is additionally operable to when being not enabled on described detection function it is allowed to described client access network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610858462.6A CN106411882B (en) | 2016-09-28 | 2016-09-28 | Method and device for accessing client to network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610858462.6A CN106411882B (en) | 2016-09-28 | 2016-09-28 | Method and device for accessing client to network |
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| CN106411882A true CN106411882A (en) | 2017-02-15 |
| CN106411882B CN106411882B (en) | 2021-01-15 |
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| CN201610858462.6A Active CN106411882B (en) | 2016-09-28 | 2016-09-28 | Method and device for accessing client to network |
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| US20020062485A1 (en) * | 2000-11-20 | 2002-05-23 | Eiji Okano | Cable modem system |
| US20020126658A1 (en) * | 2001-03-06 | 2002-09-12 | Nec Corporation | Main unit address restricted notification system |
| US20040006647A1 (en) * | 2002-07-03 | 2004-01-08 | Lg Electronics Inc. | Remote control system for home appliance network and method for operating the same |
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| CN106411882B (en) | 2021-01-15 |
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