CN104955025B - A kind of address resource method for releasing and device, system - Google Patents
A kind of address resource method for releasing and device, system Download PDFInfo
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- CN104955025B CN104955025B CN201410124486.XA CN201410124486A CN104955025B CN 104955025 B CN104955025 B CN 104955025B CN 201410124486 A CN201410124486 A CN 201410124486A CN 104955025 B CN104955025 B CN 104955025B
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- 238000004590 computer program Methods 0.000 claims description 4
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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]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2101/00—Indexing scheme associated with group H04L61/00
- H04L2101/60—Types of network addresses
- H04L2101/618—Details of network addresses
- H04L2101/622—Layer-2 addresses, e.g. medium access control [MAC] addresses
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Abstract
The invention discloses a kind of address resource method for releasing and device, system, this method to include：Wireless access point obtains the offline message for being directed to user equipment, which carries the hardware address of user equipment；In the case where wireless access point is the certification wireless access point of user equipment, dynamic host configuration protocol is sent to Dynamic Host Configuration Protocol server and discharges message, dynamic host configuration protocol release message includes the hardware address of user equipment.Implement the embodiment of the present invention, address resource can be saved.
Description
Technical Field
The invention relates to the technical field of communication, in particular to an address resource release method, device and system.
Background
In a wireless network, after User Equipment (UE) is authenticated, a Dynamic Host Configuration Protocol (DHCP) message may be sent to a DHCP server in two ways, one is local forwarding and the other is centralized forwarding. In the local forwarding, the DHCP message sent by the UE is directly forwarded to the DHCP server by a wireless Access Point (AP); in the centralized forwarding, the DHCP message sent by the UE is sent to a controller (english: controller) by the wireless AP, and then forwarded to the DHCP server by the controller.
After the UE is authenticated, the DHCP server allocates an Internet Protocol (IP) address to the UE, and determines a lease duration. The IP address is only available to the UE until the lease arrives, i.e., other UEs cannot use the IP address before the lease arrives regardless of whether the UE uses the IP address or not. Because the number of the IP addresses that can be allocated by the DHCP server is limited, after the IP addresses on the DHCP server are allocated, if a new UE comes online, the UE cannot obtain the IP addresses so as to be unable to access the network, but some IP addresses already allocated to the UE are not used, and only the lease period of the IP addresses does not reach, so as to cause waste of IP address resources.
Disclosure of Invention
The invention discloses an address resource release method, device and system, which are used for saving address resources.
The first aspect of the invention discloses an address resource release method, which comprises the following steps:
an AP acquires an offline message aiming at UE, wherein the offline message carries a hardware address of the UE;
and under the condition that the AP is the authentication AP of the UE, the AP sends a DHCP release message to a DHCP server, wherein the DHCP release message comprises the hardware address of the UE.
With reference to the first aspect of the present invention, in a first possible implementation manner of the first aspect of the present invention, the acquiring, by the AP, an offline message for the UE includes:
the AP receives an offline message sent by the UE;
after the AP acquires the offline message for the UE and before sending the DHCP release message to the DHCP server, the method further includes:
the AP sends a roaming information acquisition request aiming at the UE to a controller so as to trigger the controller to judge whether the AP is an authentication AP of the UE;
and the AP receives the judgment result sent by the controller.
With reference to the first aspect of the present invention, in a second possible implementation manner of the first aspect of the present invention, the acquiring, by the AP, an offline message for the UE includes:
the method comprises the steps that an AP receives an offline message aiming at UE sent by a controller, and the offline message also carries an offline reason of the UE;
after the AP acquires the offline message for the UE and before sending the DHCP release message to the DHCP server, the method further includes:
and the AP judges whether the AP is an authentication AP of the UE or not according to the offline reason of the UE.
With reference to the first aspect and any one of the first and second possible implementation manners of the first aspect, in a third possible implementation manner of the first aspect of the present invention, the method further includes:
and under the condition that the AP is not the authentication AP of the UE, the AP sends a DHCP release message generation request to a controller, the DHCP release message generation request instructs the controller to send instruction information to the authentication AP of the UE so as to trigger the authentication AP of the UE to send a DHCP release message to the DHCP server, and the instruction information comprises the hardware address of the UE.
A second aspect of the present invention discloses an AP, including:
an obtaining unit, configured to obtain an offline message for a UE, where the offline message carries a hardware address of the UE;
a sending unit, configured to send a DHCP release message to a DHCP server when the AP is an authenticated AP of the UE, where the DHCP release message includes a hardware address of the UE.
With reference to the second aspect of the present invention, in a first possible implementation manner of the second aspect of the present invention, the obtaining unit is specifically configured to receive an offline message sent by a UE;
the sending unit is further configured to send a roaming information acquisition request for the UE to a controller, so as to trigger the controller to determine whether the AP is an authentication AP of the UE;
the acquiring unit is further configured to receive a determination result sent by the controller, and when the determination result indicates that the AP is the authentication AP of the UE, trigger the sending unit to execute the step of sending the dhcp release packet to the dhcp server.
With reference to the second aspect of the present invention, in a second possible implementation manner of the second aspect of the present invention, the obtaining unit is specifically configured to receive an offline message for the UE sent by a controller, where the offline message also carries an offline reason of the UE;
the AP further comprises:
and the judging unit is used for judging whether the AP is the authentication AP of the UE according to the off-line reason of the UE acquired by the acquiring unit, and triggering the sending unit to execute the step of sending the dynamic host configuration protocol release message to the dynamic host configuration protocol server when the judging result of the judging unit is yes.
With reference to the second aspect of the present invention and any one of the first and second possible implementation manners of the second aspect, in a third possible implementation manner of the second aspect of the present invention, the sending unit is further configured to send a DHCP release message generation request to a controller when the AP is not an authentication AP of the UE, where the DHCP release message generation request instructs the controller to send instruction information to the authentication AP of the UE, so as to trigger the authentication AP of the UE to send a DHCP release message to the DHCP server, where the instruction information includes a hardware address of the UE.
The third aspect of the present invention discloses an address resource release system, which comprises an AP and a DHCP server, wherein:
the AP is used for acquiring an offline message for the UE and sending a DHCP release message to a DHCP server under the condition that the AP is an authentication AP of the UE, wherein the offline message carries a hardware address of the UE, and the DHCP release message comprises the hardware address of the UE;
and the DHCP server is used for receiving the DHCP release message sent by the AP and releasing the association between the IP address of the UE and the UE according to the DHCP release message.
With reference to the third aspect of the present invention, in a first possible implementation manner of the third aspect of the present invention, in a case that the AP is not an authenticated AP of the UE, the system further includes a controller and the authenticated AP of the UE, where:
the AP is also used for sending a DHCP release message generation request to the controller;
the controller is configured to receive the DHCP release packet generation request sent by the AP, and send indication information to the authentication AP of the UE according to the DHCP release packet generation request, where the indication information carries a hardware address of the UE;
the authentication AP of the UE is used for receiving the indication information sent by the controller and sending a DHCP release message to the DHCP server;
the DHCP server is further configured to receive the DHCP release message sent by the authentication AP of the UE.
In the embodiment of the invention, after the AP acquires the offline message aiming at the UE, whether the AP is the authentication AP of the UE is judged, if the AP is the authentication AP of the UE, a DHCP release message is generated and sent to the DHCP server, so that the DHCP server is triggered to release the association between the IP address of the UE and the UE. In the embodiment of the invention, after the UE is offline, the DHCP server releases the IP address allocated to the UE, the IP address is changed into an unallocated IP address, and when a new UE applies for the IP address, the DHCP server allocates the IP address to the new UE, so that the address resource can be saved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a flowchart of an address resource releasing method disclosed in an embodiment of the present invention;
FIG. 2 is a flowchart of another address resource releasing method disclosed in the embodiment of the present invention;
FIG. 3 is a block diagram of an AP according to an embodiment of the present invention;
fig. 4 is a block diagram of another AP disclosed in an embodiment of the present invention;
fig. 5 is a structural diagram of an address resource release system according to an embodiment of the present invention.
Detailed description of the invention
The technical solutions in the embodiments of the present invention will be described clearly below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention discloses an address resource release method, device and system, which are used for saving address resources. The following are detailed below.
Referring to fig. 1, fig. 1 is a flowchart illustrating an address resource releasing method according to an embodiment of the present invention. As shown in fig. 1, the address resource release method may include the following steps.
S101, the AP acquires an offline message aiming at the UE, wherein the offline message carries a hardware address of the UE.
When the UE actively goes offline, the offline message of the UE is sent to the AP by the UE; when the administrator makes the UE offline, the charge of the UE is used up and the like, the offline message of the UE is sent to the AP by the controller. Wherein, the offline message sent to the AP carries the hardware address of the UE. In a Wireless Local Area Network (WLAN) supporting 802.11, Institute of Electrical and Electronics Engineers (IEEE), a hardware address of a UE is a Media Access Control (MAC) address.
S102, when the AP is the authentication AP of the UE, the AP sends a DHCP release message to a DHCP server to trigger the DHCP server to release the association between the IP address of the UE and the UE, wherein the DHCP release message comprises the hardware address of the UE.
Optionally, after obtaining the offline message of the UE, the AP determines that the AP is not the same AP as the authentication AP of the UE. If the AP is the authentication AP of the UE, the fact that the UE does not roam after being authenticated and on line is indicated, namely the UE always accesses the network through the AP, the AP generates a DHCP release (English: DHCP RELEASE) message of the UE and sends the DHCP release message to a DHCP server so as to trigger the DHCP server to release the association between the IP address of the UE and the UE according to the DHCP release message of the UE.
Correspondingly, if the AP is not the authentication AP of the UE, the AP indicates that the UE roams from the authentication AP of the UE to the AP after being authenticated and on line, the AP sends a DHCP release message generation request to the controller, the controller sends indication information to the authentication AP of the UE so as to trigger the authentication AP of the UE to generate a DHCP release message, and the authentication AP of the UE sends the DHCP release message to the DHCP server. The indication information comprises a hardware address of the UE, and the authentication AP of the UE carries the hardware address of the UE in a DHCP release message sent by the authentication AP according to the hardware address of the UE in the indication information.
In the address resource release method described in fig. 1, after acquiring the offline message for the UE, the AP sends a DHCP release message to the DHCP server when the AP is an authenticated AP of the UE, so as to trigger the DHCP server to release the association between the IP address of the UE and the UE. In the embodiment of the invention, after the UE is offline, the DHCP server releases the IP address allocated to the UE, the IP address is changed into an unallocated IP address, and when a new UE applies for the IP address, the DHCP server allocates the IP address to the new UE, so that the address resource can be saved.
Referring to fig. 2, fig. 2 is a flowchart illustrating another address resource releasing method according to an embodiment of the present invention. As shown in fig. 2, the address resource release method may include the following steps.
S201, the AP forwards an IP address acquisition request of the UE to a DHCP server to trigger the DHCP server to allocate an IP address to the UE, wherein the IP address acquisition request carries a hardware address of the UE.
Optionally, when the AP receives an authentication request sent by the UE, it indicates that the UE needs to access the network, so that an IP address acquisition request is sent to the DHCP server to trigger the DHCP server to allocate an IP address to the UE, and send the allocated IP address to the AP. The IP address acquisition request carries the hardware address of the UE, so that the DHCP server can allocate the IP address to the UE.
As a possible implementation manner, the AP acquires an IP address allocated by the DHCP server for the UE, and generates a DHCP entry of the UE.
After forwarding the IP address acquisition request to the DHCP server, the AP receives an IP address allocation response sent by the DHCP server, wherein the IP address allocation response comprises the IP address of the UE. And then the AP generates a DHCP table item of the UE, wherein the DHCP table item of the UE comprises the mapping between the IP address and the hardware address of the UE.
S202, the AP acquires an offline message aiming at the UE, and the offline message carries the hardware address of the UE.
As a possible implementation manner, the AP acquiring the offline message for the UE may be that the AP receives the offline message sent by the UE, where the offline message carries a hardware address of the UE; the AP may also receive an offline message for the UE sent by the controller, where the offline message carries a hardware address of the UE and an offline reason of the UE.
Optionally, when the UE actively goes offline, the offline message of the UE is sent to the AP by the UE; when the administrator makes the UE offline, the charge of the UE is used up and the like, the offline message of the UE is sent to the AP by the controller.
Since the AP sends the DHCP release message to the DHCP server, the DHCP release message may pass through other devices. If the devices use DHCP snooping, the DHCP snooping will monitor whether the port sending the DHCP release message is consistent with the port in the DHCPsnooping table, if not, it indicates that the message is illegal, and discards the message. Therefore, in order to make the forwarding path of the DHCP release message consistent with the path of the DHCP message in the IP address allocation process, after receiving the offline message sent by the UE, the AP first needs to determine whether the AP is an authentication AP of the UE.
As a possible implementation manner, when the AP receives the offline message sent by the UE, the AP determining whether the AP is an authenticated AP of the UE may include the following steps.
A1, the AP sends a roaming information acquisition request aiming at the UE to the controller so as to trigger the controller to judge whether the AP is an authentication AP of the UE or not, and sends the judgment result to the AP.
Because the offline message is sent to the AP by the UE, if the AP does not store information on whether the AP is an authentication AP for the UE, the AP sends a roaming information acquisition request for the UE to the controller to trigger the controller to determine whether the AP is an authentication AP for the UE, and sends the determination result to the AP.
A2, the AP receives the determination result transmitted by the controller.
After the AP sends a roaming information acquisition request aiming at the UE to the controller, the AP receives a judgment result sent by the controller and identifies whether the judgment result is that the AP is an authentication AP of the UE.
As a possible implementation manner, when the AP receives the offline message for the UE sent by the controller, the AP will determine whether the AP is an authentication AP for the UE according to the offline reason of the UE.
Optionally, when the offline message is sent to the AP by the controller, the offline message carries an offline reason of the UE. The off-line reasons of the UE comprise direct off-line and roaming off-line, wherein the direct off-line means that the UE accesses the network through the AP from authentication to off-line, namely the AP is the authentication AP of the UE; the roaming offline is that the authentication AP performs authentication when the UE is authenticated, and before the offline, the UE does not access the network through the authentication AP but accesses the network through the AP, namely the UE roams from the authentication AP to the offline after the AP. Therefore, whether the AP is the authentication AP of the UE can be judged according to the offline reason of the UE.
If the offline message sent by the controller and addressed to the UE and received by the AP has no reason for the offline, it may be determined whether the AP is an authentication AP for the UE in the same manner as when the AP receives the offline message sent by the UE.
S203, when the AP is the authentication AP of the UE, the AP sends a DHCP release message to the DHCP server to trigger the DHCP server to release the association between the IP address of the UE and the UE, wherein the DHCP release message comprises the hardware address of the UE.
If the AP is the authentication AP of the UE, the fact that the UE does not roam after being authenticated and on line is indicated, namely the UE always accesses the network through the AP, the AP generates a DHCP release (English: DHCP RELEASE) message of the UE and sends the DHCP release message to a DHCP server so as to trigger the DHCP server to release the association between the IP address of the UE and the UE according to the DHCP release message of the UE.
As a possible implementation manner, if the AP is not the authentication AP of the UE, the AP sends a DHCP release message generation request to the controller, the controller sends indication information to the authentication AP of the UE to trigger the authentication AP of the UE to generate a DHCP release message, and the authentication AP of the UE sends the DHCP release message to the DHCP server, where the indication information includes a hardware address of the UE.
Optionally, if the AP is not the authentication AP of the UE, it indicates that the UE roams from the authentication AP of the UE to the AP after being authenticated online, and in order to avoid discarding the generated DHCP release message, the authentication AP needs to be notified to generate the DHCP release message. The AP cannot directly send a DHCP release message generation request to the authentication AP of the UE, so that the AP firstly sends the DHCP release message generation request to the controller, the controller sends indication information to the authentication AP of the UE according to the DHCP release message generation request to trigger the authentication AP of the UE to generate the DHCP release message, and the authentication AP of the UE sends the DHCP release message to the DHCP server to trigger the DHCP server to release the association between the IP address of the UE and the UE. The indication information carries the hardware address of the UE, and the authentication AP carries the hardware address of the UE in a DHCP release message sent by the authentication AP according to the hardware address of the UE in the indication information.
Optionally, when the AP stores a DHCP entry of the UE, the DHCP release message is generated according to the DHCP entry of the UE, and the DHCP release message includes a hardware address and an IP address of the UE.
Optionally, after the AP sends a DHCP release message generation request to the controller, the AP will clear the stored DHCP entry of the UE.
In the address resource release method described in fig. 2, the AP forwards an IP address acquisition request of the UE to the DHCP server to trigger the DHCP server to allocate an IP address to the UE, acquire an offline message for the UE, determine whether the AP is an authentication AP for the UE, and send a DHCP release message to the DHCP server to trigger the DHCP server to release association between the IP address of the UE and the UE when the AP is the authentication AP for the UE. In the embodiment of the invention, after the UE is offline, the DHCP server releases the IP address allocated to the UE, the IP address is changed into an unallocated IP address, and when a new UE applies for the IP address, the DHCP server allocates the IP address to the new UE, so that the address resource can be saved.
Referring to fig. 3, fig. 3 is a structural diagram of an AP according to an embodiment of the present invention. As shown in fig. 3, the AP may include:
an obtaining unit 301, configured to obtain an offline message for a UE, where the offline message carries a hardware address of the UE;
a sending unit 302, configured to send a DHCP release message to a DHCP server to trigger the DHCP server to release an association between the IP address of the UE and the UE, where the DHCP release message includes a hardware address of the UE, when the AP is an authentication AP of the UE.
As a possible implementation manner, the obtaining unit 301 is specifically configured to receive an offline message sent by the UE;
a sending unit 302, configured to send a roaming information obtaining request for the UE to the controller, so as to trigger the controller to determine whether the AP is an authentication AP of the UE;
the obtaining unit 301 is further configured to receive a determination result sent by the controller.
As a possible implementation manner, the obtaining unit 301 is specifically configured to receive an offline message for the UE sent by the controller, where the offline message also carries an offline reason of the UE;
the AP may further include:
a determining unit, configured to determine whether the AP is an authentication AP of the UE according to the offline reason of the UE acquired by the acquiring unit 301.
As a possible implementation manner, the sending unit 302 is further configured to send a DHCP release message generation request to the controller if the AP is not an authentication AP of the UE, send indication information to the authentication AP of the UE to trigger the authentication AP of the UE to generate a DHCP release message, and send the DHCP release message to the DHCP server by the authentication AP of the UE, where the indication information includes a hardware address of the UE.
In the AP described in fig. 3, after the UE goes offline, the DHCP server releases the IP address allocated to the UE, changes the IP address to an unallocated IP address, and when a new UE applies for an IP address, the DHCP server allocates the IP address to the new UE, thereby saving address resources.
Referring to fig. 4, fig. 4 is a structural diagram of another AP according to the disclosure of the embodiment of the present invention. As shown in fig. 4, the AP may include a Radio Frequency (RF) module 401, a processor 402, a memory 403, and an ethernet network interface controller 404. In some embodiments of the present invention, the RF module 401, the processor 402, the memory 403, and the ethernet network interface controller 404 may be connected by a bus. The RF module 401 may support wireless communication in one or more frequency bands of 2.4 gigahertz (GHz), 3.6GHz, 5GHz, and 60 GHz. The processor 402 may be a Central Processing Unit (CPU) or a combination of a CPU and a hardware chip. The memory 403 may be a volatile memory (RAM), such as a random-access memory (RAM); or a non-volatile memory (english: non-volatile memory), such as a read-only memory (ROM), a flash memory (flash memory), a hard disk (HDD) or a solid-state drive (SSD); or a combination of the above types of memories. A set of program codes is stored in the memory 403 and the processor 402 is configured to call the program codes stored in the memory 403 to perform the following operations:
acquiring an offline message aiming at the UE, wherein the offline message carries a hardware address of the UE;
and sending a DHCP release message to a DHCP server to trigger the DHCP server to release the association between the IP address of the UE and the UE under the condition that the AP is an authentication AP of the UE, wherein the DHCP release message comprises the hardware address of the UE.
As a possible implementation manner, the manner for the processor 403 to acquire the offline message for the UE specifically is:
receiving an offline message sent by UE;
after acquiring the offline message for the UE and before sending the DHCP release message to the DHCP server, the processor 403 further performs the following operations:
sending a roaming information acquisition request aiming at the UE to a controller so as to trigger the controller to judge whether the AP is an authentication AP of the UE or not, and sending a judgment result to the AP;
and receiving the judgment result sent by the controller.
As a possible implementation manner, the manner for the processor 403 to acquire the offline message for the UE specifically is:
receiving an offline message aiming at the UE sent by the controller, wherein the offline message also carries an offline reason of the UE;
after acquiring the offline message for the UE and before sending the DHCP release message to the DHCP server, the processor 403 further performs the following operations:
and the AP judges whether the AP is an authentication AP of the UE or not according to the offline reason of the UE.
As a possible implementation, the processor 403 further performs the following steps:
and under the condition that the AP is not the authentication AP of the UE, the AP sends a DHCP release message generation request controller, the controller sends indication information to the authentication AP of the UE so as to trigger the authentication AP of the UE to generate a DHCP release message, and the authentication AP of the UE sends the DHCP release message to a DHCP server, wherein the indication information comprises a hardware address of the UE.
In the AP described in fig. 4, after the UE goes offline, the DHCP server releases the IP address allocated to the UE, changes the IP address to an unallocated IP address, and when a new UE applies for an IP address, the DHCP server allocates the IP address to the new UE, thereby saving address resources.
Referring to fig. 5, fig. 5 is a structural diagram of an address resource releasing system according to an embodiment of the present invention. As shown in fig. 5, the address resource releasing system may include an AP501 and a DHCP server 502, where the structure of the AP501 may be the same as the structures shown in fig. 3 and fig. 4, and details are not repeated in this embodiment of the present invention. Wherein:
the AP501 is configured to acquire an offline message for the UE, and generate and send a DHCP release message to the DHCP server 502 when the AP501 is an authentication AP of the UE, where the offline message carries a hardware address of the UE, and the DHCP release message includes the hardware address of the UE;
and the DHCP server 502 is configured to receive a DHCP release message sent by the AP501, and release association between the IP address of the UE and the UE according to the DHCP release message.
As a possible implementation manner, in the case that the AP501 is not an authentication AP of the UE, the address resource releasing system may further include a controller 503 and an authentication AP504 of the UE, wherein:
the AP501 is further configured to send a DHCP release message generation request to the controller 503;
the controller 503 is configured to receive a DHCP release packet generation request sent by the AP501, and send indication information to the authentication AP504 of the UE, where the indication information carries a hardware address of the UE;
the authentication AP504 of the UE is configured to receive the indication information sent by the controller 503, generate a DHCP release message, and send the DHCP release message to the DHCP server 502;
the DHCP server 502 is further configured to receive a DHCP release packet sent by the authentication AP504 of the UE, and release association between the IP address of the UE and the UE according to the dynamic host configuration protocol release packet.
In the address resource release system described in fig. 5, after the UE goes offline, the DHCP server releases the IP address allocated to the UE, changes the IP address to an unallocated IP address, and when a new UE applies for an IP address, the DHCP server allocates the IP address to the new UE, so that address resources can be saved.
In one embodiment, the embodiment of the present invention further discloses a computer storage medium, where the computer storage medium stores a computer program, and when the computer program in the computer storage medium is read to a computer, the computer is enabled to complete all the steps of the address resource release method disclosed in the embodiment of the present invention.
It should be noted that, for simplicity of description, the above-mentioned embodiments of the method are described as a series of acts or combinations, but those skilled in the art will recognize that the present invention is not limited by the order of acts, as some steps may occur in other orders or concurrently in accordance with the invention. Further, those skilled in the art will also appreciate that the embodiments described in the specification are presently preferred and that no acts or modules are necessarily required of the invention.
Those skilled in the art will appreciate that all or part of the steps of the various methods of the above embodiments may be implemented by a program for instructing a processor, and the program may be stored in a computer-readable storage medium, and the storage medium may include: flash memory disks, read-only memory, random access memory, magnetic or optical disks, and the like.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the invention is not limited by the scope of the appended claims.
Claims (9)
1. An address resource release method, comprising:
the method comprises the steps that a wireless access point acquires an offline message aiming at user equipment, wherein the offline message carries a hardware address of the user equipment;
when the wireless access point is the authentication wireless access point of the user equipment, the wireless access point sends a dynamic host configuration protocol release message to a dynamic host configuration protocol server, wherein the dynamic host configuration protocol release message comprises a hardware address of the user equipment;
wherein the wireless access point acquiring the offline message for the user equipment comprises:
the wireless access point receives an offline message sent by user equipment;
after the wireless access point obtains the offline message for the user equipment and before the wireless access point sends the dhcp release message to the dhcp server, the method further includes: the wireless access point sends a roaming information acquisition request aiming at the user equipment to a controller so as to trigger the controller to judge whether the wireless access point is an authentication wireless access point of the user equipment; the wireless access point receives a judgment result sent by the controller;
or,
the wireless access point acquiring the offline message for the user equipment comprises the following steps:
the method comprises the steps that a wireless access point receives an offline message which is sent by a controller and aims at user equipment, and the offline message also carries an offline reason of the user equipment;
after the wireless access point obtains the offline message for the user equipment and before the wireless access point sends the dhcp release message to the dhcp server, the method further includes:
and the wireless access point judges whether the wireless access point is an authentication wireless access point of the user equipment or not according to the offline reason of the user equipment.
2. The method of claim 1, wherein the method further comprises:
and under the condition that the wireless access point is not the authenticated wireless access point of the user equipment, the wireless access point sends a dynamic host configuration protocol release message generation request to a controller, the dynamic host configuration protocol release message generation request indicates the controller to send indication information to the authenticated wireless access point of the user equipment so as to trigger the authenticated wireless access point of the user equipment to send a dynamic host configuration protocol release message to the dynamic host configuration protocol server, wherein the indication information comprises a hardware address of the user equipment.
3. An address resource release method, comprising:
the method comprises the steps that a wireless access point acquires an offline message aiming at user equipment, wherein the offline message carries a hardware address of the user equipment;
when the wireless access point is the authentication wireless access point of the user equipment, the wireless access point sends a dynamic host configuration protocol release message to a dynamic host configuration protocol server, wherein the dynamic host configuration protocol release message comprises a hardware address of the user equipment;
the method further comprises the following steps:
and under the condition that the wireless access point is not the authenticated wireless access point of the user equipment, the wireless access point sends a dynamic host configuration protocol release message generation request to a controller, the dynamic host configuration protocol release message generation request indicates the controller to send indication information to the authenticated wireless access point of the user equipment so as to trigger the authenticated wireless access point of the user equipment to send a dynamic host configuration protocol release message to the dynamic host configuration protocol server, wherein the indication information comprises a hardware address of the user equipment.
4. A wireless access point, comprising:
an obtaining unit, configured to obtain an offline message for a user equipment, where the offline message carries a hardware address of the user equipment;
a sending unit, configured to send a dynamic host configuration protocol release message to a dynamic host configuration protocol server when the wireless access point is an authenticated wireless access point of the user equipment, where the dynamic host configuration protocol release message includes a hardware address of the user equipment;
the acquiring unit is specifically configured to receive an offline message sent by user equipment;
the sending unit is further configured to send a roaming information acquisition request for the user equipment to a controller, so as to trigger the controller to determine whether the wireless access point is an authenticated wireless access point of the user equipment;
the acquiring unit is further configured to receive a determination result sent by the controller, and when the determination result indicates that the wireless access point is an authenticated wireless access point of the user equipment, trigger the sending unit to execute the step of sending a dynamic host configuration protocol release message to a dynamic host configuration protocol server;
or
The obtaining unit is specifically configured to receive an offline message sent by a controller and addressed to a user equipment, where the offline message also carries an offline reason of the user equipment;
the wireless access point further comprises:
and the judging unit is used for judging whether the wireless access point is the authentication wireless access point of the user equipment according to the offline reason of the user equipment acquired by the acquiring unit, and triggering the sending unit to execute the step of sending the dynamic host configuration protocol release message to the dynamic host configuration protocol server when the judging result of the judging unit is yes.
5. The wireless access point of claim 4, wherein the sending unit is further configured to send a dynamic host configuration protocol release message generation request to a controller if the wireless access point is not an authenticated wireless access point of the user equipment, where the dynamic host configuration protocol release message generation request instructs the controller to send indication information to an authenticated wireless access point of the user equipment, so as to trigger the authenticated wireless access point of the user equipment to send a dynamic host configuration protocol release message to the dynamic host configuration protocol server, where the indication information includes a hardware address of the user equipment.
6. A wireless access point, comprising:
an obtaining unit, configured to obtain an offline message for a user equipment, where the offline message carries a hardware address of the user equipment;
a sending unit, configured to send a dynamic host configuration protocol release message to a dynamic host configuration protocol server when the wireless access point is an authenticated wireless access point of the user equipment, where the dynamic host configuration protocol release message includes a hardware address of the user equipment;
wherein,
the sending unit is further configured to send a dynamic host configuration protocol release message generation request to a controller when the wireless access point is not an authenticated wireless access point of the user equipment, where the dynamic host configuration protocol release message generation request instructs the controller to send instruction information to the authenticated wireless access point of the user equipment, so as to trigger the authenticated wireless access point of the user equipment to send a dynamic host configuration protocol release message to the dynamic host configuration protocol server, where the instruction information includes a hardware address of the user equipment.
7. An address resource release system, comprising at least a wireless access point and a dynamic host configuration protocol server, wherein:
the wireless access point is configured to acquire an offline message for a user equipment, and send a dynamic host configuration protocol release message to a dynamic host configuration protocol server when the wireless access point is an authenticated wireless access point of the user equipment, where the offline message carries a hardware address of the user equipment, and the dynamic host configuration protocol release message includes the hardware address of the user equipment;
the dynamic host configuration protocol server is used for receiving the dynamic host configuration protocol release message sent by the wireless access point and releasing the association between the internet protocol address of the user equipment and the user equipment according to the dynamic host configuration protocol release message;
wherein, in case the wireless access point is not an authenticated wireless access point for the user equipment, the system further comprises a controller and an authenticated wireless access point for the user equipment, wherein:
the wireless access point is also used for sending a dynamic host configuration protocol release message generation request to the controller;
the controller is configured to receive the dynamic host configuration protocol release message generation request sent by the wireless access point, and send indication information to an authenticated wireless access point of the user equipment according to the dynamic host configuration protocol release message generation request, where the indication information includes a hardware address of the user equipment;
the authentication wireless access point of the user equipment is used for receiving the indication information sent by the controller and sending a dynamic host configuration protocol release message to the dynamic host configuration protocol server;
the dynamic host configuration protocol server is further configured to receive the dynamic host configuration protocol release message sent by the authenticated wireless access point of the user equipment.
8. A computer storage medium, characterized in that the computer storage medium stores a computer program, wherein the computer program in the computer storage medium, when read into a computer, can make the computer perform the method of any one of claims 1 to 3.
9. A wireless access point is characterized by comprising a radio frequency module, a processor, a memory and an Ethernet network interface controller, wherein the radio frequency module, the processor, the memory and the Ethernet network interface controller are connected through a bus;
wherein a set of program code is stored in the memory and the processor is configured to call the program code stored in the memory to perform the method of any of claims 1 to 3.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410124486.XA CN104955025B (en) | 2014-03-29 | 2014-03-29 | A kind of address resource method for releasing and device, system |
| PCT/CN2015/074760 WO2015149635A1 (en) | 2014-03-29 | 2015-03-20 | Address resource releasing method, apparatus and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410124486.XA CN104955025B (en) | 2014-03-29 | 2014-03-29 | A kind of address resource method for releasing and device, system |
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| CN104955025B true CN104955025B (en) | 2018-11-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4192063A4 (en) * | 2020-08-20 | 2024-03-27 | Huawei Technologies Co., Ltd. | Access management method, authentication point, and authentication server |
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|---|---|---|---|---|
| CN114173340A (en) * | 2020-08-20 | 2022-03-11 | 华为技术有限公司 | An access management method, authentication point and authentication server |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101730090A (en) * | 2009-12-24 | 2010-06-09 | 杭州华三通信技术有限公司 | Method and equipment for releasing IP addresses by DHCP server |
| CN102244866A (en) * | 2011-08-18 | 2011-11-16 | 杭州华三通信技术有限公司 | Portal verifying method and access controller |
| CN102413203A (en) * | 2011-12-01 | 2012-04-11 | 中兴通讯股份有限公司 | IP (Internet Protocol) address allocation method and device |
| CN102594938A (en) * | 2012-02-14 | 2012-07-18 | 杭州华三通信技术有限公司 | Portal secondary address authentication method and device |
| CN103476143A (en) * | 2012-06-07 | 2013-12-25 | 中国移动通信集团公司 | Method, device and system for IP resource releasing of WLAN |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101795449B (en) * | 2010-01-07 | 2013-04-17 | 杭州华三通信技术有限公司 | Wireless network terminal access control method and device thereof |
| US9344397B2 (en) * | 2011-09-27 | 2016-05-17 | Aruba Networks, Inc. | Client aware DHCP lease management |
-
2014
- 2014-03-29 CN CN201410124486.XA patent/CN104955025B/en active Active
-
2015
- 2015-03-20 WO PCT/CN2015/074760 patent/WO2015149635A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101730090A (en) * | 2009-12-24 | 2010-06-09 | 杭州华三通信技术有限公司 | Method and equipment for releasing IP addresses by DHCP server |
| CN102244866A (en) * | 2011-08-18 | 2011-11-16 | 杭州华三通信技术有限公司 | Portal verifying method and access controller |
| CN102413203A (en) * | 2011-12-01 | 2012-04-11 | 中兴通讯股份有限公司 | IP (Internet Protocol) address allocation method and device |
| CN102594938A (en) * | 2012-02-14 | 2012-07-18 | 杭州华三通信技术有限公司 | Portal secondary address authentication method and device |
| CN103476143A (en) * | 2012-06-07 | 2013-12-25 | 中国移动通信集团公司 | Method, device and system for IP resource releasing of WLAN |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4192063A4 (en) * | 2020-08-20 | 2024-03-27 | Huawei Technologies Co., Ltd. | Access management method, authentication point, and authentication server |
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| WO2015149635A1 (en) | 2015-10-08 |
| CN104955025A (en) | 2015-09-30 |
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