WO2021197375A1

WO2021197375A1 - Roaming networking processing method, apparatus, mobile terminal and readable storage medium

Info

Publication number: WO2021197375A1
Application number: PCT/CN2021/084370
Authority: WO
Inventors: 廖辉
Original assignee: 深圳市万普拉斯科技有限公司
Priority date: 2020-03-31
Filing date: 2021-03-31
Publication date: 2021-10-07
Also published as: CN113473576A; CN113473576B

Abstract

The present application provides a roaming networking processing method and apparatus, a mobile terminal and a readable storage medium and relates to the field of mobile communications. In the present application, when the mobile terminal detects a roaming event generated by itself, the mobile terminal broadcasts a DHCP detection request packet carrying the default IP address of the mobile terminal before the roaming so as to make use of the characteristic that a DHCP server responds to any DHCP request packet received. The mobile terminal receives the DHCP detection response packet of each DHCP server, and determines the target detection response packet and the packet type identification result, and quickly determines, according to the type identification result, whether the roaming mobile terminal can use the current default IP address to access directly the DHCP server-governed network corresponding to the target detection response packet. The stability of duration for network accessibility confirmation operation is enhanced, the prolonged interruption of network access is prevented, and the internet surfing experience of a user is optimized.

Description

Roaming network processing method, device, mobile terminal and readable storage medium

【Technical Field】

This application relates to the field of mobile communications, and in particular to a method, device, mobile terminal, and readable storage medium for roaming network processing.

【Background technique】

With the continuous development of mobile communication technology, the application of wireless roaming technology has become more and more extensive. Mobile terminals can access a network matching the roaming location through wireless roaming technology to implement network access operations. After the mobile terminal completes a roaming operation, it needs to confirm whether the mobile terminal can directly access the roaming network at that time, and apply for a new IP address from the roaming network to load the network when it cannot. At present, the mobile terminal implements the network accessibility confirmation operation by sending a response request message for the gateway device before roaming, and waiting for the response message of the gateway device before roaming. If the mobile terminal does not receive a response message from the gateway device before roaming within a long period of time after sending the response request message, the mobile terminal can determine that it cannot currently access the network where the roaming is located. Therefore, the confirmation time of this accessibility confirmation scheme is unstable, and it is impossible to quickly determine whether the mobile terminal can access the roaming network after roaming, and it is prone to long-term interruption of network access.

[Summary of the invention]

According to the embodiments of the present application, the purpose of the present application is to provide a roaming network processing method, a mobile terminal, and a readable storage medium, which can quickly confirm whether the mobile terminal can access the roaming network after roaming, and enhance the The accessibility confirms the stability of the duration, avoids the phenomenon of long-term interruption of network access, and optimizes the user's online experience.

According to the first aspect of the present application, there is provided a roaming network processing method, which is applied to a mobile terminal, and the method includes: in response to the mobile terminal detecting a roaming event, broadcast sending a DHCP detection request message, wherein the DHCP The detection request message carries the default IP address of the mobile terminal before roaming; the DHCP detection response message corresponding to the DHCP detection request message fed back by the DHCP server is received, wherein the DHCP detection response message is sent by the DHCP server. The DHCP server responds to the received DHCP detection request message according to the IP address pool managed by itself; determines a target detection response message in the received DHCP detection response message, and responds to the target The detection response message performs message type identification to obtain a corresponding type identification result; according to the type identification result, it is determined whether the mobile terminal can communicate to the first DHCP server that sent the target detection response message through the default IP address. Access to the managed network.

According to a second aspect of the present application, there is provided a roaming network processing method, which is applied to a DHCP server, and the method includes: receiving a DHCP detection request message sent from a mobile terminal, wherein the DHCP detection request message carries The default IP address of the mobile terminal before roaming; a DHCP detection response message is sent, the DHCP detection response message is based on the IP address pool managed by the DHCP server in response to the received DHCP detection request message The access from the mobile terminal is accepted, wherein the access of the mobile terminal is based on the mobile terminal determining the target detection response message in the received DHCP detection response message, and responding to the target The detection response message performs message type identification, and a corresponding type identification result is obtained to determine whether the network managed by the first DHCP server that sent the target detection response message can be accessed through the default IP address.

According to a third aspect of the present application, there is provided a roaming network processing device, the device comprising: a detection request module, configured to broadcast and send a DHCP detection request message in response to the mobile terminal detecting a roaming event, wherein The DHCP detection request message carries the default IP address of the mobile terminal before roaming; the response receiving module is configured to receive a DHCP detection response message corresponding to the DHCP detection request message fed back by the DHCP server, wherein the The DHCP detection response message is obtained by the DHCP server in response to most of the received DHCP detection request messages according to the IP address pool managed by the DHCP server; the message identification module is used to determine the target detection in the received DHCP detection response message Response message, and perform message type identification on the target detection response message to obtain the corresponding type identification result; access detection module for determining whether the mobile terminal can pass the default IP address according to the type identification result Access to the network managed by the first DHCP server that sent the target detection response message.

According to a fourth aspect of the present application, there is provided a mobile terminal including a processor and a memory, the memory storing instructions that can be executed by the processor, and the processor executing the instructions to implement the following method: The mobile terminal detects a roaming event, and broadcasts a DHCP detection request message, wherein the DHCP detection request message carries the default IP address of the mobile terminal before roaming; and the DHCP detection request message fed back by the DHCP server is received. The DHCP detection response message corresponding to the message, wherein the DHCP detection response message is obtained by the DHCP server in response to the received DHCP detection request message according to the IP address pool managed by itself; A target detection response message is determined in the DHCP detection response message, and the message type identification is performed on the target detection response message to obtain a corresponding type identification result; according to the type identification result, it is determined whether the mobile terminal is available Access the network managed by the first DHCP server that sends the target detection response message through the default IP address.

According to a fifth aspect of the present application, there is provided a readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the roaming network processing method as described in the first aspect is implemented.

The beneficial effect of this application is that when the mobile terminal detects that there is a roaming event, the mobile terminal broadcasts and sends a DHCP detection request message carrying its default IP address before roaming, and the mobile terminal receives each The DHCP server responds to the DHCP detection request message according to its own IP address pool and obtains the DHCP detection response message, and then determines the target detection response message and the message type identification result, and then uses the type identification result to determine whether the mobile terminal is currently The network managed by the first DHCP server that sent the target detection response message can be accessed through the default IP address, so that the mobile terminal can be quickly confirmed by using the feature that the DHCP server will respond to any DHCP request message it receives Whether you can access the roaming network after roaming, enhance the stability of the accessibility confirmation time, avoid the phenomenon of long-term interruption of network access, and optimize the user's online experience.

【Explanation of the drawings】

In order to more clearly describe the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings that need to be used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work. in:

Figure 1 is a schematic diagram of a roaming scenario between a mobile terminal and a DHCP server provided by an embodiment of the application;

FIG. 2 is a schematic flowchart of a roaming network processing method provided by an embodiment of this application;

3 is a schematic flowchart of a roaming network processing method provided by another embodiment of this application;

4 is a schematic diagram of functional modules of a roaming network processing device provided by an embodiment of the application;

FIG. 5 is a schematic diagram of functional modules of a roaming network processing device provided by another embodiment of this application

FIG. 6 is a schematic diagram of the structural composition of a mobile terminal provided by an embodiment of the application;

FIG. 7 is a schematic diagram of the composition of a non-volatile storage medium provided by an embodiment of the application.

【Detailed ways】

The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

It should be noted that the terms "first" and "second" and other relational terms are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply one of these entities or operations. There is any such actual relationship or order between. Moreover, the terms "include", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes those that are not explicitly listed Other elements of, or also include elements inherent to this process, method, article or equipment. If there are no more restrictions, the element defined by the sentence "including a..." does not exclude the existence of other identical elements in the process, method, article, or equipment that includes the element.

The inventor found through painstaking research that when the current industry mainstream determines whether the mobile terminal can access the roaming network in the case of a roaming event in a mobile terminal, the mobile terminal usually sends a ping protocol-based generation from the mobile terminal to the gateway device before roaming. ICMP (Internet Control Message Protocol) response request (ICMP Echo Request) message carrying the gateway address of the gateway device, and/or broadcast ARP carrying the gateway address of the gateway device before roaming (Address Resolution Protocol) request message, the gateway device before roaming returns to the mobile terminal a response message corresponding to the sent request message, where the current gateway address does not match the gateway address recorded in the request message When any gateway device receives the request message, it will not respond to the request message.

After sending the ICMP response request message and/or ARP request message, the mobile terminal will wait for the gateway device before roaming to return a response message corresponding to the sent request message, and wait for the waiting time to exceed the preset waiting time. When the corresponding response message is not received, it is determined that the current roaming event of the mobile terminal belongs to cross-network segment roaming, and at this time, it cannot access the network where the roaming is located. Therefore, this kind of network accessibility confirmation scheme has the phenomenon of unstable screening time. When facing a real cross-segment roaming event, it takes at least a preset waiting time, and it is impossible to quickly confirm whether the current roaming operation belongs to cross-segment roaming. In other words, it is impossible to quickly confirm whether the mobile terminal can access the roaming network after roaming, and it is impossible to reduce the length of network connection interruption. It is prone to long-term interruption of network access, and the user's Internet experience is poor. Therefore, the inventor solves the above technical problems by providing a roaming network processing method, device, mobile terminal, and readable storage medium.

Hereinafter, some embodiments of the present application will be described in detail with reference to the accompanying drawings. In the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

Please refer to FIG. 1, which is a schematic diagram of a roaming scene between a mobile terminal 10 and a DHCP server 20 according to an embodiment of the present application. In the embodiment of the present application, each DHCP (Dynamic Host Configuration Protocol, dynamic host configuration protocol) server 20 is configured with an IP address pool, and manages the network corresponding to its own IP address pool, where each DHCP server 20 is configured with an IP address pool. The IP address pool corresponding to the server 20 can record the IP address of at least one network segment, and each network segment corresponds to a local area network, that is, each DHCP server 20 can correspondingly manage at least one local area network. The mobile terminal 10 can roam between all local area networks managed by the same DHCP server 20, or between the local area networks managed by multiple DHCP servers 20.

After each roaming operation is completed, the mobile terminal 10 broadcasts a DHCP request message carrying the current IP address of the mobile terminal 10 (the IP address of the mobile terminal 10 before the roaming operation), so as to cover the mobile terminal After receiving the DHCP request message, the DHCP server 20 of 10 can determine whether the IP address recorded in the DHCP request message is in the IP address pool of the DHCP server 20 according to its own IP address pool, so as to determine whether the mobile terminal 10 is It can access the network corresponding to the DHCP server 20 with the IP address before roaming, and then directly feed back to the mobile terminal 10 a DHCP response message that reflects the judgment result of network access, so that the mobile terminal 10 can quickly know that it is after roaming. Whether it can directly access the network of the roaming place, improve the time stability of the network accessibility confirmation operation, avoid the phenomenon of long-term interruption of network access, and optimize the user's online experience.

Please refer to FIG. 2, which is a schematic flowchart of a roaming network processing method provided by an embodiment of the present application.

In the embodiment of the present application, the specific process and steps of the roaming network processing method shown in FIG. 2 are as follows.

Step S210, in response to the mobile terminal detecting a roaming event, broadcast a DHCP detection request message, where the DHCP detection request message carries the default IP address of the mobile terminal before roaming;

In this embodiment, when the mobile terminal 10 roams under at least one local area network managed by the same DHCP server 20, or between at least one local area network managed by different DHCP servers 20, the mobile terminal 10 will Detect whether it generates a roaming event through its own underlying firmware, and when a roaming event is detected, send to the outside broadcast a DHCP requesting to detect whether the current default IP address of the mobile terminal 10 can continue to be used in the network after the roaming is completed A detection request message, wherein the DHCP detection request message records the default IP address used for network access of the mobile terminal 10 before the roaming event occurs. In an implementation manner of this embodiment, the DHCP detection request message may be generated in a DHCP Request message format.

Step S220: Receive a DHCP detection response message corresponding to the DHCP detection request message fed back by the DHCP server.

In this embodiment, when a roaming event occurs in the mobile terminal 10 and a DHCP detection request message is broadcasted, at least one DHCP server 20 within the DHCP message sending range of the mobile terminal 10 will receive the DHCP detection request accordingly. Request message, and then the DHCP server 20 will extract information from the DHCP detection request message to obtain the current default IP address of the mobile terminal 10 recorded in the DHCP detection request message. At this time, the DHCP server 20 compares the extracted default IP address with its own IP address pool to determine whether the mobile terminal 10 can directly access a local area network managed by itself.

The number of IP address pools stored by the DHCP server 20 is the same as the number of local area networks managed by the DHCP server 20, and each local area network managed by the same DHCP server 20 corresponds to an IP address pool. When a certain DHCP server 20 obtains a certain default IP address to be detected, it will first determine whether the original local area network corresponding to the default IP address belongs to the local area network managed by the DHCP server 20.

If the original local area network corresponding to the default IP address does not belong to the local area network managed by the DHCP server 20, it indicates that the corresponding mobile terminal 10 cannot directly access any local area network managed by itself through the default IP address. At this time, the DHCP server 20 The DHCP detection response message whose message type is a negative response message directly generated is fed back to the mobile terminal 10.

If the original local area network corresponding to the default IP address belongs to the local area network managed by the DHCP server 20, it indicates that the mobile terminal 10 may directly access the default IP address managed by the DHCP server 20 through the default IP address. If the original local area network is matched, the DHCP server 20 will call the IP address pool corresponding to the original local area network, and determine whether the default IP address exists in the called IP address pool through address comparison.

When the default IP address does not exist in the IP address pool corresponding to the original local area network, it can indicate that the default IP address is illegal, and the mobile terminal 10 cannot access the original local area network through the default IP address. At this time, the DHCP server 20 will directly generate The DHCP detection response message whose message type is a negative response message is fed back to the mobile terminal 10.

When the default IP address exists in the IP address pool corresponding to the original local area network, it can indicate that the default IP address is legal, and the mobile terminal 10 can access the original local area network through the default IP address. At this time, the DHCP server 20 will A DHCP detection response message whose message type is an acknowledgement message is directly generated and fed back to the mobile terminal 10.

In an implementation of this embodiment, the above-mentioned acknowledgement message may be expressed in a DHCP ACK (ACKnowledgement) message format, and the above-mentioned negative acknowledgement message may adopt a DHCP NAK (Negative Acknowledgment, non-acknowledgement) message format. Make an expression.

Step S230: Determine a target detection response message in the received DHCP detection response message, and perform message type identification on the target detection response message to obtain a corresponding type identification result.

In this embodiment, when the mobile terminal 10 receives multiple DHCP detection response messages, it usually uses the first DHCP detection response message received as the target that best matches the DHCP server 20 in the current roaming location. The detection response message. At this time, the DHCP server 20 sending the target detection response message is the currently selected DHCP server 20 (that is, the first DHCP server 20) that needs to be confirmed whether it is accessible. At this time, the mobile terminal 10 will use the message type result of the target detection response message to determine whether it can directly use the current default IP address to access the roaming network at that time.

Step S240: Determine, according to the type identification result, whether the mobile terminal can access the network managed by the first DHCP server that sends the target detection response message through the default IP address.

In this embodiment, when the type identification result of the target detection response message indicates that the target detection response message is an affirmative response message, it can be determined that the current default IP address of the mobile terminal 10 is in the position where the target detection response message is sent. In the IP address pool of the first DHCP server 20, that is, the mobile terminal 10 can access the network managed by the first DHCP server 20 through the default IP address. When the type identification result of the target detection response message indicates that the target detection response message is a negative response message, it can be determined that the current default IP address of the mobile terminal 10 is not in the first DHCP server that sent the target detection response message. In the IP address pool of 20, that is, the mobile terminal 10 cannot access the network managed by the first DHCP server 20 through the default IP address.

In this application, the mobile terminal 10 adopts the roaming network processing method described above to ensure that the mobile terminal 10 can quickly confirm whether it can directly access the roaming network by virtue of the IP address before roaming after a roaming event, thereby enhancing the accessibility. The stability of the sexual confirmation time can avoid the phenomenon of long-term interruption of network access and optimize the user's online experience.

Please refer to FIG. 3, which is a schematic flowchart of a roaming network processing method provided by another embodiment of the present application. In the embodiment of the present application, the roaming and networking processing method shown in FIG. 3 is compared with the roaming and networking processing method shown in FIG. 2. The roaming and networking processing method shown in FIG. 3 may further include step S250. When it is not possible to directly access the network of the roaming place through the IP address before roaming, it is possible to obtain an IP address matching the network of the roaming place by performing step S250, and connect with the network of the roaming place according to the obtained IP address. Ensure that the mobile terminal 10 can continue to access the network.

Step S250: When the type identification result is that the target detection response message is a negative response message, apply for the target IP address of the current accessible network of the mobile terminal for loading.

In this embodiment, when the mobile terminal 10 determines that the type recognition result corresponding to the acquired target detection response message indicates that the target detection response message is a negative response message, the mobile terminal 10 will not be able to directly pass the default value at that time. The IP address visits the network in the roaming location, and the mobile terminal 10 will correspondingly seek its target IP address under the network that can be accessed in the current roaming location to load, so as to access the network in the roaming location to perform network access operations. .

Specifically, the step of applying for loading the target IP address of the current accessible network of the mobile terminal 10 further includes:

Clear the current default IP address, and broadcast a DHCP probe message;

Receiving a DHCP detection response message corresponding to the DHCP detection message fed back by the DHCP server 20;

Determine the second DHCP server 20 in the DHCP server 20 corresponding to each of the received DHCP probe response messages, and broadcast a DHCP service request message for the second DHCP server 20;

Receive a DHCP service response message from the second DHCP server 20, and configure a default IP address according to the target IP address included in the DHCP service response message.

Wherein, the second DHCP server 20 is the DHCP server 20 for the requested IP address determined by the mobile terminal 10. The DHCP detection message sent by the mobile terminal 10 can be generated in the DHCP Discover message format, the DHCP detection response message sent by the DHCP server 20 can be generated in the DHCP Offer message format, and the DHCP detection response message received by the mobile terminal 10 The number is at least one.

The mobile terminal 10 can select the DHCP server 20 corresponding to the first received DHCP probe response message as the second DHCP server 20 according to the order in which the DHCP probe response message is received, and broadcast to the surroundings to indicate that the confirmation is passed. The second DHCP server 20 performs a DHCP service request message for IP address application, where the DHCP service request message may be generated in a DHCP Request message format. At this time, the selected second DHCP server 20 may point to the same DHCP server 20 as the aforementioned first DHCP server 20. When the second DHCP server 20 receives the DHCP service request message, it will correspondingly allocate a target IP address under the network controlled by the second DHCP server 20 to the mobile terminal 10, and feed back to the mobile terminal 10 that it includes The DHCP service response message of the target IP address enables the mobile terminal 10 to configure its own default IP address according to the target IP address, and directly access the network managed by the second DHCP server 20 through the configured default IP address.

The present application also provides a roaming network connection processing device 100. The roaming network connection processing device 100 realizes its functions by dividing functional modules. The specific composition of the roaming network processing device 100 provided in the present application will be described below. Please refer to FIG. 4, which is a schematic diagram of functional modules of a roaming network processing apparatus 100 provided by an embodiment of the present application.

In the embodiment of the present application, the roaming network processing device 100 includes a detection request module 110, a response receiving module 120, a message identification module 130, and an access detection module 140.

The detection request module 110 is configured to broadcast a DHCP detection request message in response to the mobile terminal detecting a roaming event, where the DHCP detection request message carries the default IP address of the mobile terminal before roaming.

The response receiving module 120 is configured to receive a DHCP detection response message corresponding to the DHCP detection request message fed back by the DHCP server, where the DHCP detection response message is responded by the DHCP server according to the IP address pool managed by the DHCP server in response to the received DHCP detection The request message is obtained.

The message identification module 130 is configured to determine a target detection response message in the received DHCP detection response message, and perform message type identification on the target detection response message to obtain a corresponding type identification result.

The access detection module 140 is configured to determine, according to the type identification result, whether the mobile terminal can access the network managed by the first DHCP server that sends the target detection response message through the default IP address.

In another embodiment, please refer to FIG. 5, which is a schematic diagram of functional modules of a roaming network processing apparatus 100 provided in another embodiment of the present application. In the embodiment of the present application, the roaming network connection processing device 100 shown in FIG. 5 is compared with the roaming network connection processing device 100 shown in FIG. 4, and the roaming network connection processing device 100 shown in FIG. 150.

The address application module 150 is configured to apply for the target IP address of the current accessible network of the mobile terminal for loading when the type identification result is that the target detection response message is a negative response message.

It should be noted that the basic principles and technical effects of the roaming network processing device 100 provided in the embodiment of the present application are the same as the aforementioned roaming network processing method. For a brief description, the parts not mentioned in this embodiment are partially described. , Please refer to the above description of the roaming connection processing method.

The present application also provides a mobile terminal 10. Please refer to FIG. 6. FIG. 6 is a schematic structural composition diagram of the mobile terminal 10 provided by an embodiment of the present application. In the embodiment of the present application, the mobile terminal 10 may include a memory 11, a processor 12, and a communication unit 13. The components of the memory 11, the processor 12, and the communication unit 13 are directly or indirectly electrically connected to each other to realize data transmission or interaction. For example, the memory 11, the processor 12, and the communication unit 13 may be electrically connected to each other through one or more communication buses or signal lines.

In this embodiment, the memory 11 may be used to store a program, and the processor 12 may execute the program accordingly after receiving the execution instruction. The memory 11 may be, but is not limited to, random access memory (Random Access Memory, RAM), read-only memory (Read Only Memory, ROM), and programmable read-only memory (Programmable Read-Only Memory, PROM). Erasable Programmable Read-Only Memory (EPROM), Electric Erasable Programmable Read-Only Memory (EEPROM), etc. Wherein, the memory 11 can also be used to store the IP address currently used by the corresponding mobile terminal 10 for implementing network access, that is, the default IP address.

In this embodiment, the processor 12 may be an integrated circuit chip with signal processing capability. The processor 12 may be a general-purpose processor, including a central processing unit (Central Processing Unit, CPU), a network processor (Network Processor, NP), and so on. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc., and may implement or execute the methods, steps, and logical block diagrams disclosed in the embodiments of the present application.

In this embodiment, the communication unit 13 is configured to establish a communication connection between the mobile terminal 10 and other electronic devices through a network, and perform data interaction through the network. In addition, the communication unit 13 is also used to implement the signal sending function and signal receiving function of the mobile terminal 10.

In this embodiment, after receiving the execution instruction, the processor 12 can execute the program in the memory 11 accordingly to execute the aforementioned roaming and networking processing method. For a brief description, for the parts not mentioned in this embodiment, please refer to The above description of the roaming network processing method.

It is understandable that the block diagram shown in FIG. 6 is only a schematic diagram of a structural composition of the mobile terminal 10. The mobile terminal 10 may also include more or fewer components than those shown in FIG. Figure 6 shows the different configurations. Each component shown in FIG. 6 can be implemented by hardware, software, or a combination thereof.

The present application also provides an embodiment of a non-volatile storage medium. As shown in FIG. 7, the non-volatile storage medium 200 stores a computer program 201 that can be run by a processor, and the computer program 201 is used to execute the above-mentioned implementation. The method in the example. Specifically, the storage medium 200 may specifically be the memory 11 shown in FIG. 6 or a part of the memory 11.

In the embodiments provided in this application, it should be understood that the disclosed device and method may also be implemented in other ways. The device embodiments described above are merely illustrative. For example, the flowcharts and block diagrams in the drawings show the possible implementation architecture, functions, and operations of the devices, methods, and computer program products according to the embodiments of the present application. In this regard, each block in the flowchart or block diagram may represent a module, program segment, or part of the code, and the module, program segment, or part of the code contains one or more functions for realizing the specified logical function. Executable instructions. It should also be noted that in some alternative implementations, the functions marked in the block may also occur in a different order from the order marked in the drawings. For example, two consecutive blocks can actually be executed substantially in parallel, or they can sometimes be executed in the reverse order, depending on the functions involved. It should also be noted that each block in the block diagram and/or flowchart, and the combination of the blocks in the block diagram and/or flowchart, can be implemented by a dedicated hardware-based system that performs the specified functions or actions Or it can be realized by a combination of dedicated hardware and computer instructions.

In addition, the functional modules in the various embodiments of the present application may be integrated together to form an independent part, or each module may exist alone, or two or more modules may be integrated to form an independent part.

If the function is implemented in the form of a software function module and sold or used as an independent product, it can be stored in a readable storage medium. Based on this understanding, the technical solution of the present application essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a readable storage medium. , Including several instructions to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned readable storage media include: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disks or optical disks, etc., which can store program codes. Medium.

The above are only implementations of this application, and do not limit the scope of this application. Any equivalent structure or equivalent process transformation made using the content of the description and drawings of this application, or directly or indirectly applied to other related technical fields, The same reasoning is included in the scope of patent protection of this application.

Claims

A roaming network processing method, characterized in that it is applied to a mobile terminal, and the method includes:

In response to the mobile terminal detecting the roaming event, broadcast sending a DHCP detection request message, wherein the DHCP detection request message carries the default IP address of the mobile terminal before roaming;

Receive a DHCP detection response message corresponding to the DHCP detection request message fed back by the DHCP server, where the DHCP detection response message is the DHCP server responding to the DHCP received according to the IP address pool managed by the DHCP server Obtained by detecting the request message;

Determine a target detection response message in the received DHCP detection response message, and perform message type identification on the target detection response message to obtain a corresponding type identification result;

According to the type identification result, it is determined whether the mobile terminal can access the network managed by the first DHCP server that sent the target detection response message through the default IP address.
The method according to claim 1, wherein the DHCP detection request message is generated by adopting a DHCP Request message format.
The method according to claim 2, wherein the number of IP address pools of the DHCP server is the same as the number of local area networks managed by the DHCP server.
The method according to claim 1, wherein the first DHCP server is a DHCP server corresponding to the target detection response message that needs to be confirmed to be accessible, and the mobile device is determined according to the type identification result. Whether the terminal can access the network managed by the first DHCP server that sends the target detection response message through the default IP address includes:

If the type identification result is that the target detection response message is a positive response message, it is determined that the default IP address is in the IP address pool of the first DHCP server, and the mobile terminal can pass the default IP address Access to the network managed by the first DHCP server;

If the type identification result is that the target detection response message is a negative response message, it is determined that the default IP address is not in the IP address pool of the first DHCP server, and the mobile terminal cannot pass the default IP address. The address accesses the network managed by the first DHCP server.
The method according to claim 4, wherein the method further comprises:

When the type recognition result is that the target detection response message is a negative response message, the target IP address of the current accessible network of the mobile terminal is requested to be loaded.
The method according to claim 5, wherein the applying for loading the target IP address of the current accessible network of the mobile terminal further comprises:

Clear the current default IP address, and broadcast a DHCP probe message;

Receiving a DHCP detection response message corresponding to the DHCP detection message fed back by the DHCP server;

Determine a second DHCP server from the DHCP servers corresponding to each of the received DHCP probe response messages, and broadcast a DHCP service request message for the second DHCP server, where the second DHCP server is an applied-for DHCP server with IP address;

Receive a DHCP service response message from the second DHCP server, and configure a default IP address according to the target IP address included in the DHCP service response message.
A roaming network processing method, characterized in that it is applied to a DHCP server, and the method includes:

Receiving a DHCP detection request message sent from a mobile terminal, where the DHCP detection request message carries the default IP address of the mobile terminal before roaming;

Sending a DHCP detection response message, the DHCP detection response message being obtained in response to the received DHCP detection request message according to the IP address pool managed by the DHCP server;

Accept access from the mobile terminal, wherein the access of the mobile terminal is based on the mobile terminal determining a target detection response message in the received DHCP detection response message, and responding to the target detection response message The message performs message type identification, and obtains a corresponding type identification result to determine whether the network managed by the first DHCP server that sends the target detection response message can be accessed through the default IP address.
The method according to claim 7, wherein the DHCP detection request message is generated by adopting a DHCP Request message format.
8. The method according to claim 8, wherein the number of IP address pools of the DHCP server is the same as the number of local area networks managed by the DHCP server.
The method according to claim 9, characterized in that, before the sending a DHCP detection response message, the method further comprises:

Determining whether the original local area network corresponding to the default IP address belongs to the local area network managed by the DHCP server;

If the original local area network corresponding to the default IP address does not belong to the local area network managed by the DHCP server, the mobile terminal cannot directly access any local area network managed by the DHCP server through the default IP address;

If the original local area network corresponding to the default IP address belongs to the local area network managed by the DHCP server, the IP address pool corresponding to the original local area network is called, and the IP address pool is compared to determine whether there is the Default IP address;

When the default IP address does not exist in the IP address pool, the mobile terminal cannot access the original local area network through the default IP address;

When the default IP address exists in the IP address pool, the mobile terminal accesses the original local area network through the default IP address.
The method according to claim 10, wherein when the default IP address does not exist in the IP address pool, the sending a DHCP detection response message further comprises:

The DHCP detection response message that generates the negative response message is sent to the mobile terminal;

When the default IP address exists in the IP address pool, the sending a DHCP detection response message further includes:

The DHCP detection response message that generates the positive response message is sent to the mobile terminal.
A roaming network processing device, characterized in that it is applied to a mobile terminal, and the device includes:

The detection request module is configured to broadcast a DHCP detection request message in response to the mobile terminal detecting a roaming event, wherein the DHCP detection request message carries the default IP address of the mobile terminal before roaming;

The response receiving module is configured to receive a DHCP detection response message corresponding to the DHCP detection request message fed back by the DHCP server, wherein the DHCP detection response message is received by the DHCP server in response to the IP address pool managed by itself Most DHCP detection request messages are obtained;

A message identification module, configured to determine a target detection response message in the received DHCP detection response message, and perform message type identification on the target detection response message to obtain a corresponding type identification result;

The access detection module is configured to determine, according to the type identification result, whether the mobile terminal can access the network managed by the first DHCP server that sends the target detection response message through the default IP address.
The device according to claim 12, wherein the first DHCP server is a DHCP server corresponding to the target detection response message that needs to be confirmed whether it is accessible, and the access detection module is based on the type identification result Determining whether the mobile terminal can access the network managed by the first DHCP server that sends the target detection response message through the default IP address includes:

If the type identification result is that the target detection response message is a positive response message, it is determined that the default IP address is in the IP address pool of the first DHCP server, and the mobile terminal can use the default IP address to pair Access to the network managed by the first DHCP server;

If the type identification result is that the target detection response message is a negative response message, it is determined that the default IP address is not in the IP address pool of the first DHCP server, and the mobile terminal cannot pass the default IP address Access to the network managed by the first DHCP server.
The device according to claim 13, wherein the device further comprises:

The address application module is configured to apply for the target IP address of the current accessible network of the mobile terminal for loading when the result of the type recognition is that the target detection response message is a negative response message.
The device according to claim 14, wherein the address application module applies for the mobile terminal's current target IP address under the accessible network for loading, further comprising:

Clear the current default IP address, and broadcast a DHCP probe message;

Receiving a DHCP detection response message corresponding to the DHCP detection message fed back by the DHCP server;

Determine the second DHCP server from the DHCP servers corresponding to each of the received DHCP probe response messages, and broadcast a DHCP service request message for the second DHCP server, where the second DHCP server is the requested IP address DHCP server;

Receive a DHCP service response message from the second DHCP server, and configure a default IP address according to the target IP address included in the DHCP service response message.
A mobile terminal, characterized by comprising a processor and a memory, the memory storing instructions that can be executed by the processor, and the processor executing the instructions to implement the following method:

In response to the mobile terminal detecting the roaming event, broadcast sending a DHCP detection request message, wherein the DHCP detection request message carries the default IP address of the mobile terminal before roaming;

Receive a DHCP detection response message corresponding to the DHCP detection request message fed back by the DHCP server, where the DHCP detection response message is the DHCP server responding to the DHCP received according to the IP address pool managed by the DHCP server Obtained by detecting the request message;

Determine a target detection response message in the received DHCP detection response message, and perform message type identification on the target detection response message to obtain a corresponding type identification result;

According to the type identification result, it is determined whether the mobile terminal can access the network managed by the first DHCP server that sent the target detection response message through the default IP address.
The mobile terminal according to claim 16, wherein the first DHCP server is a DHCP server corresponding to the target detection response message that needs to be confirmed to be accessible, and the processor executes the The method further includes:

If the type identification result is that the target detection response message is a positive response message, it is determined that the default IP address is in the IP address pool of the first DHCP server, and the mobile terminal can pass the default IP address Access to the network managed by the first DHCP server;

If the type identification result is that the target detection response message is a negative response message, it is determined that the default IP address is not in the IP address pool of the first DHCP server, and the mobile terminal cannot pass the default IP address. The address accesses the network managed by the first DHCP server.
The mobile terminal according to claim 17, wherein the method implemented by the processor executing instructions further comprises:

When the type recognition result is that the target detection response message is a negative response message, the target IP address of the current accessible network of the mobile terminal is requested to be loaded.
The mobile terminal according to claim 18, wherein the method implemented by the processor executing instructions further comprises:

Clear the current default IP address, and broadcast a DHCP probe message;

Receiving a DHCP detection response message corresponding to the DHCP detection message fed back by the DHCP server;

Determine a second DHCP server from the DHCP servers corresponding to each of the received DHCP probe response messages, and broadcast a DHCP service request message for the second DHCP server, where the second DHCP server is an applied-for DHCP server with IP address;

Receive a DHCP service response message from the second DHCP server, and configure a default IP address according to the target IP address included in the DHCP service response message.
A non-volatile storage medium, characterized in that it stores a computer program that, when executed by a processor, implements the roaming network processing method according to any one of claims 1-6.