WO2025067012A1 - Communication method and apparatus based on virtual local area network, and device and storage medium - Google Patents

Abstract

Provided in the present application are a communication method and apparatus based on a virtual local area network, and a device and a storage medium. The method comprises: monitoring a virtual interface of a first terminal by means of a first client, and acquiring a service message to be sent; then, performing encapsulation processing on the service message on the basis of pre-acquired configuration information of a virtual local area network, so as to obtain a transmission message; then, on the basis of an IP address of a second client, transmitting the transmission message to the second client by means of the virtual local area network; and finally, the second client performing decapsulation processing on the transmission message on the basis of the pre-acquired configuration information of the virtual local area network, so as to obtain the service message. By means of the method, data communication between terminal devices under different local area networks is realized, thereby improving the efficiency of communication between users.

Description

Communication method, device, equipment and storage medium based on virtual local area network Technical Field

The present application relates to virtual network technology, and in particular to a communication method, device, equipment and storage medium based on a virtual local area network.

Background Art

LAN communication refers to the service of sending and receiving Internet messages instantly. With the continuous advancement of science and technology, the functions of LAN communication are becoming increasingly rich, and gradually integrating multiple functions such as e-mail, blogs, music, television, games and search. LAN communication has developed into a comprehensive information platform integrating communication, information, entertainment, search, e-commerce, office collaboration and corporate customer service. It is a service of terminal networking instant communication network.

LAN communication usually realizes the communication of terminal devices through routers, and the terminal devices under the same router have the same network segment.

However, terminal devices under different routers have different network segments and are in different local area networks, so communication is impossible.

Summary of the invention

The present application provides a communication method, apparatus, device and storage medium based on a virtual local area network, which are used to solve the problem in the prior art that electronic devices in different local area networks cannot communicate.

In a first aspect, the present application provides a communication method based on a virtual local area network, which is applied to a first terminal, wherein a first client for performing a virtual local area network service is provided in the first terminal, and the method comprises: monitoring a virtual interface of the first terminal through the first client to obtain a service message to be sent, wherein the service message includes an Internet Protocol IP address of a second client as a receiving end of the service message; encapsulating the service message according to pre-acquired configuration information of the virtual local area network to obtain a transmission message; and transmitting the transmission message to the second client through the virtual local area network according to the IP address of the second client; wherein the second terminal where the second client is located belongs to the same virtual local area network as the first terminal.

In combination with the first aspect, in some embodiments, transmitting the transmission message to the second client through the virtual local area network according to the IP address of the second client includes: determining whether a point-to-point communication channel is established between the first client and the second client according to the IP address of the second client; if a point-to-point communication channel is established between the first client and the second client, sending the transmission message to the second client through the point-to-point communication channel according to the IP address of the second client; if a point-to-point communication channel is not established between the first client and the second client, transmitting the transmission message to the second client through the server of the virtual local area network.

In combination with the first aspect, in some embodiments, the configuration information of the virtual LAN includes message compression information and message encryption information; the encapsulation processing of the service message according to the pre-acquired configuration information of the virtual LAN to obtain a transmission message includes: tunnel encapsulating the service message to obtain an encapsulated message; encrypting the encapsulated message according to the message encryption information, and compressing the encrypted message according to the message compression information to obtain the transmission message.

In combination with the first aspect, in some embodiments, before the first client monitors the virtual interface of the first terminal to obtain the business message to be sent, the method also includes: receiving the authentication field sent by the cloud platform for joining the virtual LAN configuration, the IP address of the server and the IP addresses of all clients in the virtual LAN; sending a virtual LAN access request to the server according to the IP address of the server, the authentication field and the IP address of the first client; receiving an access confirmation message returned by the server, the access confirmation message being used to indicate that the first client has successfully accessed the virtual LAN.

Before the first client monitors the virtual interface of the first terminal to obtain the service message to be sent, the method also includes: scanning the uplink network device of the first terminal through the first client to obtain the network device of the server on which the virtual LAN is deployed; sending a virtual LAN joining request to the server in the network device; receiving the virtual LAN joining feedback message returned by the server, wherein the virtual LAN joining feedback message is used to indicate whether the first client has successfully joined the virtual LAN.

In combination with the first aspect, in some embodiments, if the virtual LAN joining feedback message indicates that the first client has successfully joined the virtual LAN, then the virtual LAN joining feedback message also includes the authentication field configured by the server and the configuration information of the virtual LAN; the configuration information of the virtual LAN includes message compression information, message encryption information and the IP addresses of all clients in the virtual LAN.

In combination with the first aspect, in some embodiments, the virtual local area network joining request includes the IP address of the first client.

In combination with the first aspect, in some embodiments, if the virtual LAN joining request does not include the IP address of the first client, the IP address of the first client in the configuration information of the virtual LAN is allocated by the server.

In a second aspect, the present application provides a communication method based on a virtual local area network, which is applied to a second terminal, in which a second client for performing virtual local area network services is provided. The method comprises: receiving, through the second client, a transmission message transmitted by a first client; according to pre-acquired configuration information of the virtual local area network, unsealing the transmission message to obtain a service message; wherein, the first terminal where the first client is located and the second terminal belong to the same virtual local area network.

In combination with the second aspect, in some embodiments, receiving the transmission message transmitted by the first client through the second client includes: receiving the transmission message sent by the first client through point-to-point communication; or receiving the transmission message transmitted by the first client sent by the server of the virtual local area network.

In conjunction with the second aspect, in some embodiments, the configuration information of the virtual local area network includes message compression information and message encryption information;

The method of decompressing the transmission message according to the pre-acquired configuration information of the virtual local area network to obtain the business message includes: decompressing the transmission message according to the message compression information to obtain the decompressed message; decrypting the decompressed message according to the message encryption information, and performing tunnel decapsulation to obtain the business message.

In combination with the second aspect, in some embodiments, before the transmission message transmitted by the first client is received through the second client, the method also includes: receiving the authentication field sent by the cloud platform for joining the virtual LAN configuration, the Internet Protocol IP address of the server and the IP addresses of all clients in the virtual LAN; sending a virtual LAN access request to the server based on the IP address of the server, the authentication field and the IP address of the second client; receiving an access confirmation message returned by the server, the access confirmation message being used to indicate that the second client has successfully accessed the virtual LAN.

In combination with the second aspect, in some embodiments, before receiving the transmission message transmitted by the first client through the second client, the method also includes: scanning the uplink network device of the second terminal through the second client to obtain the network device of the server on which the virtual LAN is deployed; sending a virtual LAN joining request to the server in the network device; receiving the virtual LAN joining feedback message returned by the server, wherein the virtual LAN joining feedback message is used to indicate whether the second client has successfully joined the virtual LAN.

In combination with the second aspect, in some embodiments, if the virtual LAN joining feedback message indicates that the second client has successfully joined the virtual LAN, then the virtual LAN joining feedback message also includes the authentication field configured by the server and the configuration information of the virtual LAN; the configuration information of the virtual LAN includes message compression information, message encryption information and the IP addresses of all clients in the virtual LAN.

In combination with the second aspect, in some embodiments, the virtual LAN join request includes the IP address of the second client.

In combination with the second aspect, in some embodiments, if the virtual LAN joining request does not include the IP address of the second client, the IP address of the second client in the configuration information of the virtual LAN is allocated by the server.

In a third aspect, the present application provides a communication method based on a virtual local area network, which is applied to a network device. A server for performing virtual local area network services is provided in a network device, and the method comprises: receiving a transmission message sent by a first client, wherein the transmission message comprises an IP address of a second client as a receiving end of the transmission message; and sending the transmission message to the second client according to the IP address of the second client; wherein the first client and the second client both join the same virtual local area network served by the server.

In combination with the third aspect, in some embodiments, before receiving the transmission message sent by the first client, the method also includes: receiving the authentication field sent by the cloud platform for the virtual LAN networking configuration, the IP address of the server and the IP addresses of all clients in the virtual Internet; receiving a virtual LAN access request sent by any client, the virtual LAN access request including an authentication field; verifying the authentication field in the virtual LAN access request according to the authentication field configured by the cloud platform; after the authentication field verification is passed, allowing the client to access the virtual LAN corresponding to the IP address of the server; returning an access confirmation message to the client, the access confirmation message being used to indicate that the client has successfully accessed the virtual LAN.

In combination with the third aspect, in some embodiments, before receiving the transmission message sent by the first client, the method also includes: receiving a virtual LAN joining request sent by any client; if the virtual LAN joining request does not carry the IP address of the client, allowing the client to join the virtual LAN and assigning an IP address to the client; sending a virtual LAN joining feedback message to the client, the virtual LAN joining feedback message including the authentication field and configuration information configured by the server, the configuration information including: message compression information, message encryption information, the IP address assigned to the client, and the IP addresses of other clients in the virtual LAN.

In combination with the third aspect, in some embodiments, the method also includes: if the virtual LAN join request carries the IP address of the client, detecting whether the IP address of the client is used by other clients in the virtual LAN; if the IP address of the client is not used by other clients in the virtual LAN, allowing the client to join the virtual LAN; returning the virtual LAN join feedback message to the client, the virtual LAN join feedback message including the authentication field and the configuration information configured by the server, the configuration information including: the message compression information, the message encryption information and the IP addresses of other clients in the virtual LAN.

In combination with the third aspect, in some embodiments, the method also includes: if the IP address of the client is used by other clients in the virtual LAN, the client is not allowed to join the virtual LAN, and a virtual LAN joining feedback message indicating a LAN joining failure is returned to the client.

In a fourth aspect, the present application provides a communication device based on a virtual local area network, which is applied to a first terminal, wherein a first client for performing a virtual local area network service is provided in the first terminal, and the device comprises: a first acquisition module, which is used to monitor the virtual interface of the first terminal through the first client, and obtain a business message to be sent, wherein the business message includes an Internet Protocol IP address of a second client as a receiving end of the business message; an encapsulation module, which is used to encapsulate the business message according to the configuration information of the virtual local area network obtained in advance, and obtain a transmission message; a transmission module, which is used to transmit the transmission message to the second client through the virtual local area network according to the IP address of the second client; wherein the second terminal where the second client is located belongs to the same virtual local area network as the first terminal.

In combination with the fourth aspect, in some embodiments, the transmission module includes: a determination unit, used to determine whether a point-to-point communication channel is established between the first client and the second client based on the IP address of the second client; a first transmission unit, used to send the transmission message to the second client through the point-to-point communication channel based on the IP address of the second client if the point-to-point communication channel is established between the first client and the second client; and a second transmission unit, used to transmit the transmission message to the second client through the server of the virtual local area network if the point-to-point communication channel is not established between the first client and the second client.

In conjunction with the fourth aspect, in some embodiments, the configuration information of the virtual local area network includes message compression information and message encryption information; accordingly, the encapsulation module includes: an encapsulation unit, configured to perform tunnel encapsulation on the service message to obtain an encapsulated message; a compression and encryption unit, configured to perform tunnel encapsulation on the service message according to the message encryption information; The message is encrypted, and the encrypted message is compressed according to the message compression information to obtain the transmission message.

In combination with the fourth aspect, in some embodiments, the device also includes: a first receiving module, used to receive the authentication field configured for joining the virtual LAN, the IP address of the server and the IP addresses of all clients in the virtual LAN sent by the cloud platform; a first sending module, used to send a virtual LAN access request to the server based on the IP address of the server, the authentication field and the IP address of the first client; a second receiving module, used to receive an access confirmation message returned by the server, and the access confirmation message is used to indicate that the first client has successfully accessed the virtual LAN.

In combination with the fourth aspect, in some embodiments, the device also includes: a second acquisition module, used to scan the uplink network device of the first terminal through the first client to obtain the network device of the server that deploys the virtual LAN; a second sending module, used to send a virtual LAN joining request to the server in the network device; a third receiving module, used to receive the virtual LAN joining feedback message returned by the server, and the virtual LAN joining feedback message is used to indicate whether the first client has successfully joined the virtual LAN.

In combination with the fourth aspect, in some embodiments, if the virtual LAN joining feedback message indicates that the first client has successfully joined the virtual LAN, then the virtual LAN joining feedback message also includes the authentication field configured by the server and the configuration information of the virtual LAN; the configuration information of the virtual LAN includes message compression information, message encryption information and the IP addresses of all clients in the virtual LAN.

In combination with the fourth aspect, in some embodiments, the virtual LAN join request includes the IP address of the first client.

In combination with the fourth aspect, in some embodiments, if the virtual LAN joining request does not include the IP address of the first client, the IP address of the first client in the configuration information of the virtual LAN is allocated by the server.

In a fifth aspect, the present application provides a communication device based on a virtual local area network, which is applied to a second terminal, in which a second client for performing virtual local area network services is provided, and the device includes: a first receiving module, which is used to receive a transmission message transmitted by a first client through the second client; an unsealing module, which is used to unseale the transmission message according to pre-acquired configuration information of the virtual local area network to obtain a service message; wherein the first terminal where the first client is located and the second terminal belong to the same virtual local area network.

In combination with the fifth aspect, in some embodiments, the first receiving module includes: a first receiving unit for receiving the transmission message sent by the first client through point-to-point communication; or a second receiving unit for receiving the transmission message transmitted by the first client and sent by the server of the virtual local area network.

In combination with the fifth aspect, in some embodiments, the configuration information of the virtual local area network includes message compression information and message encryption information; accordingly, the decompression module includes: a decompression unit, used to decompress the transmission message according to the message compression information to obtain a decompressed message; a decryption and decompression unit, used to decrypt the decompressed message according to the message encryption information, and perform tunnel decapsulation to obtain the business message.

In combination with the fifth aspect, in some embodiments, the device also includes: a second receiving module, used to receive the authentication field configured for joining the virtual LAN, the IP address of the server and the IP addresses of all clients in the virtual LAN sent by the cloud platform; a first sending module, used to send a virtual LAN access request to the server based on the IP address of the server, the authentication field and the IP address of the second client; a third receiving module, used to receive an access confirmation message returned by the server, and the access confirmation message is used to indicate that the second client has successfully accessed the virtual LAN.

In combination with the fifth aspect, in some embodiments, the device also includes: an acquisition module, used to scan the uplink network device of the second terminal through the second client to obtain the network device of the server that deploys the virtual LAN; a second sending module, used to send a virtual LAN joining request to the server in the network device; a fourth receiving module, used to receive the virtual LAN joining feedback message returned by the server, and the virtual LAN joining feedback message is used to indicate whether the second client has successfully joined the virtual LAN.

In combination with the fifth aspect, in some embodiments, if the virtual LAN joining feedback message indicates that the second client has successfully joined the virtual LAN, then the virtual LAN joining feedback message also includes the authentication field configured by the server and the configuration information of the virtual LAN; the configuration information of the virtual LAN includes message compression information, message encryption information and the IP addresses of all clients in the virtual LAN.

In combination with the fifth aspect, in some embodiments, the virtual LAN join request includes the IP address of the second client.

In combination with the fifth aspect, in some embodiments, if the virtual LAN joining request does not include the IP address of the second client, the IP address of the second client in the configuration information of the virtual LAN is allocated by the server.

In a sixth aspect, the present application provides a communication device based on a virtual local area network, which is applied to a network device, wherein the network device is provided with a server end for performing virtual local area network services, and the device includes: a first receiving module, used to receive a transmission message sent by a first client, the transmission message including the IP address of a second client at the receiving end of the transmission message; a transmission module, used to send the transmission message to the second client according to the IP address of the second client; wherein the first client and the second client both join the same virtual local area network served by the server end.

In combination with the sixth aspect, in some embodiments, the device also includes: a second receiving module, used to receive the authentication field configured for the virtual LAN networking, the IP address of the server and the IP addresses of all clients in the virtual LAN sent by the cloud platform; a third receiving module, used to receive a LAN access request sent by any client, the LAN access request including the authentication field; a verification module, used to verify the authentication field in the LAN access request according to the authentication field configured by the cloud platform; a first confirmation module, used to allow the client to access the virtual LAN corresponding to the IP address of the server after the authentication field verification is passed; a first return module, used to return an access confirmation message to the client, the access confirmation message is used to indicate that the client has successfully accessed the virtual LAN.

In combination with the sixth aspect, in some embodiments, the device also includes: a fourth receiving module, used to receive a virtual LAN joining request sent by any client; a confirmation allocation module, used to allow the client to join the virtual LAN and allocate an IP address to the client if the virtual LAN joining request does not carry the IP address of the client; a sending module, used to send a virtual LAN joining feedback message to the client, the virtual LAN joining feedback message including the authentication field and configuration information configured by the server, the configuration information including: message compression information, message encryption information, the IP address allocated to the client, and the IP addresses of other clients in the virtual LAN.

In combination with the sixth aspect, in some embodiments, the device also includes: a detection module, which is used to detect whether the IP address of the client is used by other clients in the virtual LAN if the virtual LAN joining request carries the IP address of the client; a second confirmation module, which is used to allow the client to join the virtual LAN if the IP address of the client is not used by other clients in the virtual LAN; and a second return module, which is used to return the virtual LAN joining feedback message to the client, the virtual LAN joining feedback message including the authentication field and the configuration information configured by the server, and the configuration information including: the message compression information, the message encryption information and the IP addresses of other clients in the virtual LAN.

In combination with the sixth aspect, in some embodiments, the device also includes: a confirmation return module, which is used to not allow the client to join the virtual LAN if the IP address of the client is used by other clients in the virtual LAN, and return a virtual LAN joining feedback message to the client to indicate that the LAN joining failed.

In the seventh aspect, the present application provides a terminal device, including: a memory, a processor, a client, and a virtual interface; the memory stores computer execution instructions; the processor executes the computer execution instructions stored in the memory to implement the methods described in the first and second aspects above.

In an eighth aspect, the present application provides a network device, comprising: a memory, a processor, a server, and a communication interface; the memory stores computer-executable instructions; the processor executes the computer-executable instructions stored in the memory, To implement the method described in the third aspect above.

The communication method, device, equipment and storage medium based on virtual local area network provided by the present application obtain the service message to be sent by monitoring the virtual interface of the first terminal through the first client, and then encapsulate the service message according to the configuration information of the virtual local area network obtained in advance to obtain the transmission message, and then transmit the transmission message to the second client through the virtual local area network according to the IP address of the second client, and finally the second client decapsulates the transmission message according to the configuration information of the virtual local area network obtained in advance to obtain the service message. Through the above method, data communication between terminal devices in different local area networks is realized, thereby improving the communication efficiency between users.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

FIG1 is a system architecture diagram of a first application scenario of a communication method based on a virtual local area network provided in an embodiment of the present application;

FIG2 is a system architecture diagram of a second application scenario of a communication method based on a virtual local area network provided in an embodiment of the present application;

FIG3 is a flow chart of a first embodiment of a communication method based on a virtual local area network according to an embodiment of the present application;

FIG4 is a schematic diagram of a specific implementation of a communication method based on a virtual local area network provided in an embodiment of the present application;

5 is a flow chart of a second embodiment of a communication method based on a virtual local area network provided in an embodiment of the present application;

FIG6 is a flow chart of a third embodiment of a communication method based on a virtual local area network according to an embodiment of the present application;

7 is a flow chart of a fourth embodiment of a communication method based on a virtual local area network provided in an embodiment of the present application;

FIG8 is a flow chart of a fifth embodiment of a communication method based on a virtual local area network according to an embodiment of the present application;

FIG9 is a schematic diagram of the structure of a first embodiment of a communication device based on a virtual local area network provided in an embodiment of the present application;

10 is a schematic diagram of the structure of a second embodiment of a communication device based on a virtual local area network provided in an embodiment of the present application;

FIG11 is a schematic diagram of the structure of a third embodiment of a communication device based on a virtual local area network provided in an embodiment of the present application;

FIG12 is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application;

FIG13 is a schematic diagram of the structure of a network device provided in an embodiment of the present application.

The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments.

DETAILED DESCRIPTION

Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

A LAN can interconnect multiple user equipment (UE) in an area. LANs can be applied to a variety of scenarios such as enterprises, homes, and industries. With the continuous advancement of technology, LAN communication functions are becoming increasingly rich, gradually integrating multiple functions such as email, blogs, music, television, games, and search. LAN communication has developed into an integrated information platform that integrates communication, information, entertainment, search, e-commerce, office collaboration, and corporate customer service. It is a terminal networking instant messaging network service. LAN communication usually realizes the communication of terminal devices through routers. Terminal devices under the same router have the same network segment, so they can be interconnected. However, terminal devices under different routers have different network segments and cannot be interconnected.

In view of the above problems, the embodiments of the present application provide a communication method, device, equipment and storage medium based on a virtual local area network, which realizes the interconnection between terminal devices in different local area networks. Specifically, the terminal devices in the same local area network have the same network segment and can be interconnected through the same router, while the terminal devices in different local area networks have different network segments and have network isolation, and cannot be interconnected. Considering these problems, the inventor studied whether it is possible to form a virtual local area network with terminal devices in different local area networks, and to realize the interconnection between terminal devices by deploying a server and a client. Based on this, the technical solution of the present application is proposed.

FIG1 is a system architecture diagram of an application scenario 1 of a communication method based on a virtual local area network provided in an embodiment of the present application. The scenario at least includes a network device 100 at the top of a local network, multiple routers 101, and multiple terminal devices 102. FIG1 only shows three routers under the network device and three terminal devices connected to each router.

The network device 100 may be any device connected to the network, such as a router, a switch, a repeater, a bridge, etc., and a server is deployed in the network device 100. The router 101 is used to ensure that the connected terminal device 102 can perform network communication. The terminal device 102 may be any intelligent electronic device that can connect to the network, such as a smart phone, a fax machine, a printer, a laptop computer, a desktop computer, a projector, a video recorder, etc., and each terminal device 102 is deployed with a client and a virtual interface.

In some examples, the local area network may be composed of a server and multiple clients, and the server and the client may be understood as a program, etc. For example, the vibrato running on the mobile phone may be a client program, which connects to the vibrato server to download short videos. The client of the virtual local area network runs on the terminal, and a virtual interface may be created on the terminal. The virtual interface is similar to a normal real network port, has an IP and MAC address, and can send and receive messages on this virtual interface. In the example of this application, the IP address of the virtual interface may be specified by the user or assigned by the server. If the terminal's service uses a virtual interface to send a message, the message of the virtual interface will be received by the client, and the client will encapsulate the message and send it to the server, which will then forward it to the client of other terminals in the virtual local area network. The clients of all terminals in the virtual local area network have virtual interfaces, which can be understood as the virtual interface connecting each terminal to form a "local area network". If there is a business on the terminal that wants to communicate with other terminals in the virtual local area network, the business only needs to send the message to the virtual interface.

The network device 100 and the terminal devices 102 connected to different routers 101 can be formed into a virtual local area network according to the same authentication field, and then the terminal devices 102 under the same virtual local area network can realize the communication of any data through the virtual local area network.

Through the virtual LAN-based communication method provided in the embodiment of the present application, the traffic between devices in different LANs can be communicated through the virtual LAN without relying on an external cloud platform for forwarding, thereby saving the bandwidth of the cloud platform, while improving data transmission efficiency and ensuring data security.

Figure 2 is a system architecture diagram of application scenario 2 of the virtual local area network-based communication method provided in an embodiment of the present application. The scenario includes at least a public network server 200, a cloud 201 for connecting routers in different cities, routers 202 in multiple cities, and terminal devices 203 connected to each router 202.

The public network server 200 is deployed with a server, and the terminal device 203 is deployed with a client and a virtual interface. Similarly, the public network server 200 and the terminal devices 203 connected to the routers 202 in multiple cities can form a virtual local area network according to the same authentication field, and then the terminal devices 203 under the same virtual local area network can realize the communication of any data through the virtual local area network. Among them, the network device 100 and the public network server 200 can respectively form multiple virtual local area networks according to different authentication fields, and traffic isolation can be achieved between each virtual local area network. It should be noted that the specific number, type and form of the network devices, public network servers, routers, and terminal devices mentioned above are not specifically limited.

The technical solution of the present application is described in detail with specific embodiments below. The following specific embodiments can be used alone or combined with each other to form new embodiments. The same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

FIG3 is a flow chart of the first embodiment of the communication method based on the virtual local area network provided by the embodiment of the present application, and FIG4 is a schematic diagram of the specific implementation of the communication method based on the virtual local area network provided by the embodiment of the present application. As shown in FIG3 and FIG4, the method is mainly applied to the virtual local area network, and the virtual local area network includes at least a first terminal, a second terminal and a network device, and the first terminal is provided with a first client, the second terminal is provided with a second client, and the network device is provided with a server. The method includes:

S301: Acquire a service message to be sent by monitoring a virtual interface through a first client.

In this step, when the terminal devices in different local area networks communicate with each other, the user initiates the terminal service through the first terminal, and the first terminal obtains the service message according to the terminal service and transmits it to the virtual interface, and the client deployed in the first terminal obtains the service message to be sent by monitoring the virtual interface. The service message includes the IP address of the second client at the message receiving end.

Optionally, the specific method for the user to initiate a terminal business service through the first terminal may be by directly inputting information into an application in the first terminal, or by touching the screen or buttons of the first terminal to initiate a command. The first terminal starts the terminal business service according to the command initiated by the user. The terminal business service may be a call service, a video transmission service, a text transmission service, etc.

This application does not specifically limit the specific method in which the user initiates the terminal business service and the specific content of the terminal business service.

S302: encapsulate the service message according to the pre-acquired virtual local area network configuration information to obtain a transmission message.

In this step, after obtaining the service message, the first client encapsulates the service message according to the pre-acquired virtual local area network configuration information to obtain a transmission message in order to communicate data with the second client at the message receiving end and ensure data security. Specifically, encapsulation refers to adding an encapsulation header before the original service message, and the information of the encapsulation header includes: sessionID, message type (control message or service message, etc.), message length, IP and MAC address of the virtual interface of the other end, etc.

Specifically, the service message is first tunnel-encapsulated to obtain an encapsulated message, and then the encapsulated message is encrypted and compressed to obtain a transmission message.

S303: According to the IP address of the second client, transmit the transmission message to the second client through the virtual local area network.

In this step, the first client processes the service message to obtain a transmission message, and then transmits the transmission message to the second client through the virtual local area network according to the IP address of the second client.

Specifically, the configuration information of the virtual local area network also includes peer-to-peer (P2P) communication information. Any client can choose to enable peer-to-peer communication or not based on the peer-to-peer communication information. Peer-to-peer communication channels can be opened between clients that enable peer-to-peer communication in the same virtual local area network. P2P communication involves P2P hole punching. Specifically, each terminal has a configuration file when starting the client. There is an item in the configuration file that indicates whether P2P hole punching is enabled for the terminal. Terminals that enable P2P hole punching in the same virtual local area network will perform P2P hole punching with each other. If a P2P channel is opened between two terminals, communication between them can be done directly in peer-to-peer mode without forwarding by the server.

This step can be implemented in the following two ways:

The first implementation method: The first client detects whether a point-to-point communication channel is established between the first client and the second client based on the IP address of the second client. If a point-to-point communication channel is established between the first client and the second client, the first client can directly transmit the transmission message to the second client through the point-to-point communication channel between the first client and the second client.

Second implementation method: If a point-to-point communication channel is not established between the first client and the second client, the first client needs to transmit the transmission message to the server, and the server transfers the transmission message and transmits it to the second client.

It should be noted that the communication method between any client and server and between clients can be any one of the User Datagram Protocol (UDP) based on Internet Protocol version 4 (IPv4) or Internet Protocol version 6 (IPv6), Transmission Control Protocol/Internet Protocol (TCP/IP), Internetwork Packet Exchange/Sequences Packet Exchange (IPX/SPX) protocol, and NetBios Enhanced User Interface (NetBEUI) protocol, and this embodiment does not make any specific limitation.

S304: Decapsulate the transmission message according to the pre-acquired virtual local area network configuration information to obtain a service message.

In this step, after receiving the transmission message transmitted by the first client, the second client unpacks the transmission message according to the pre-acquired virtual local area network configuration information in order to complete the terminal service content. To the service message. Specifically, the second client, according to the configuration information, for example, first decompresses the transmission message, then decrypts it, and finally unblocks the tunnel, thereby obtaining the service message. The second client transmits the service message to the corresponding application through the virtual interface deployed by the second terminal, and the user completes the operation in the corresponding application according to the service message.

In a possible implementation, based on the scenario shown in FIG. 1 , a plurality of terminals may be included in the same virtual local area network, and a client is deployed in each terminal. When data communication is performed through the virtual local area network, the service message may not specify the IP address of the client at the message receiving end, or may include the IP addresses of the clients at multiple message receiving ends.

For example, if the IP address of the client at the message receiving end is not specified in the service message, the terminal device initiating the service is terminal device A, and a first client is deployed in terminal device A, then the first client transmits the transmission message through router A to the server deployed in network device 100, and the server transmits the transmission message to the clients deployed in terminal device B, terminal device C, terminal device D, terminal device E, terminal device F, terminal device G, terminal device H, and terminal device I.

Exemplarily, if the business message specifies multiple IP addresses of clients at the message receiving end, the terminal device initiating the service is terminal device A, a first client is deployed in terminal device A, and the terminal devices corresponding to the IP addresses of multiple clients at the message receiving end specified in the business message are terminal device D, terminal device E, and terminal device H, then the first client respectively detects whether point-to-point communication channels are established between the clients deployed in terminal device D, terminal device E, and terminal device H. If the point-to-point communication channel is established, the transmission message is transmitted to the corresponding client through point-to-point communication. If not, the message is transmitted to the corresponding client through the server.

The communication method based on virtual local area network provided in this embodiment obtains the service message to be sent by monitoring the virtual interface through the first client, and then encapsulates the service message according to the pre-acquired configuration information of the virtual local area network to obtain the transmission message, and then transmits the transmission message to the second client through the virtual local area network according to the IP address of the second client, and finally the second client decapsulates the transmission message according to the pre-acquired configuration information of the virtual local area network to obtain the service message. Through the above method, data communication between terminal devices in different local area networks is realized, thereby improving the communication efficiency between users.

FIG5 is a flow chart of Embodiment 2 of the communication method based on a virtual local area network provided in an embodiment of the present application. As shown in FIG5 , based on the above embodiment, the configuration information of the virtual local area network includes message compression information and message encryption information, and step S302 can be implemented by the following steps:

S501: Perform tunnel encapsulation on the service message to obtain an encapsulated message.

S502: Encrypt the encapsulated message according to the message encryption information, and compress the compressed and encrypted message according to the message compression information to obtain a transmission message.

In order to improve information security, the encapsulated message is encrypted according to the message encryption information. In order to save network bandwidth and improve transmission efficiency, the encrypted message is compressed according to the message compression information to obtain the transmission message.

Specifically, the encapsulated message can be encrypted using a symmetric encryption algorithm or an asymmetric encryption algorithm. For example, the symmetric encryption algorithm can use the Advanced Encryption Standard (AES) or the Data Encryption Standard (DES) or 3DES. The asymmetric encryption algorithm can use a public key algorithm or a digital signature algorithm (DSA) or elliptic curve cryptography (ECC). This application does not specifically limit the encryption method.

The communication method based on the virtual local area network provided in this embodiment realizes the transmission of the message by encapsulating, encrypting and compressing the service message, thereby saving network bandwidth and improving transmission efficiency and data security.

In a possible design, based on the aforementioned embodiments, the client needs to join the virtual local area network before performing data communication through the virtual local area network. The specific joining method can be implemented in the following two ways.

In the first way, FIG. 6 is a flow chart of Embodiment 3 of the communication method based on the virtual local area network provided in the embodiment of the present application. Referring to FIG. 6 , the method can be implemented by the following steps:

S601: The client receives the authentication field configured for joining the virtual LAN, the IP address of the server, and the IP addresses of all clients sent by the cloud platform.

In this step, when the network device and the terminal device are connected to the same cloud platform, the cloud platform can be used to establish a virtual local area network. The cloud platform configures the authentication field and IP address for establishing the virtual local area network. In some examples, the authentication field can be a single bit or multiple bits, or a string, etc. The embodiment of the present application does not limit the form of the authentication field.

The client receives the authentication field, the server IP address and all client IP addresses sent by the cloud platform through the communication interface for joining the virtual LAN. It is worth noting that the user can instruct the terminal device to form a virtual LAN on the cloud platform.

S602: The client sends a virtual local area network access request to the server according to the IP address of the server, the authentication field and the IP address of the client.

In this step, after the client receives the authentication field sent by the cloud platform, the IP address of the server and the IP addresses of all clients, it sends a virtual LAN access request to the server according to the IP address and authentication field of the server. In some examples, the client carries the authentication field in the virtual LAN access request and sends the access request to the IP address of the server. In some examples, a client can access one or more virtual LANs established by the cloud platform.

S603: The server verifies the authentication field in the LAN access request according to the authentication field configured by the cloud platform.

In this step, after receiving the virtual LAN access request sent by the client, the server verifies the authentication field sent by the client according to the virtual LAN access request. Specifically, the server compares the authentication field sent by the client with the authentication field configured by the cloud platform. If the authentication field sent by the client is the same as the authentication field configured by the cloud platform, the client is verified. If the authentication field sent by the client is different from the authentication field configured by the cloud platform, the client fails the verification.

S604: After the authentication field is verified, the client is allowed to access the virtual local area network corresponding to the IP address of the server.

In this step, the server verifies the authentication field sent by the client. After the authentication field verification is passed, the client is allowed to access the virtual local area network corresponding to the IP address of the server and establishes a communication connection with the client.

S605: The server returns an access confirmation message to the client.

In this step, after the server allows the client to access the virtual local area network, it returns an access confirmation message to the client through the communication connection established with the client, and the client receives the access confirmation message returned by the server. The access confirmation message is used to indicate that the client has successfully accessed the virtual local area network. Optionally, after the cloud platform configures the authentication field, the IP address of the server, and the IP addresses of all clients for joining the virtual local area network, the authentication field, the IP address of the server, and the IP addresses of all clients need to be sent to the server.

The communication method based on virtual local area network provided in this embodiment is that the user specifies the terminal device for forming the virtual local area network, the cloud platform configures the authentication field and IP address, and sends it to the client and the server. The client requests the server to access the virtual local area network according to the IP address and authentication field of the server. After the authentication field sent by the client is verified, the server returns an access confirmation message to the client. Through the above method, the formation of the virtual local area network is realized, and then the communication between terminal devices in different local area networks is realized.

The second method is shown in FIG. 7 as a flow chart of the fourth embodiment of the communication method based on the virtual local area network provided in the embodiment of the present application. Referring to FIG. 7 , the method can be implemented by the following steps:

S701: Scan the uplink network device of the terminal through the client to obtain the network device of the server where the virtual local area network is deployed.

In this step, if you want to build a virtual LAN, you need to establish communication between the client and the server, and the client scans the upstream network device of the terminal to obtain the network device of the server that has deployed the virtual LAN. In some examples, the client scans the upstream network device of the terminal, which means that the client first uses a technology similar to traceroute to obtain the upper-level gateway layer by layer, and sends a scan message to all IP addresses of the network segment where each upper-level gateway is located. If the server is at the upper level, it will receive the scan message. After receiving the scan message, the server will respond to the scan request, so that the client obtains the IP address and port of the server. After scanning the server, the client will try to join the virtual LAN of the server.

Specifically, since the server may be deployed in the top network device, the client scans the upstream network device of the terminal layer by layer, scans the server that deploys the virtual LAN and turns on the server's network device, and then obtains the server's IP address.

S702: Send a virtual local area network joining request to a server in the network device.

In this step, after obtaining the IP address of the server, the client sends a virtual local area network joining request to the server in the network device through a communication connection.

S703: If the virtual local area network joining request does not carry the IP address of the client, the client is allowed to join the virtual local area network and an IP address is allocated to the client.

In this step, after receiving the virtual LAN joining request sent by the client, the server queries whether the virtual LAN joining request carries the client's IP address. If the virtual LAN joining request does not carry the client's IP address, it means that the client has not joined any virtual LAN. In this case, the client is allowed to join the virtual LAN and an IP address is allocated to the client.

S704: Send a virtual local area network joining feedback message to the client.

In this step, after the server allocates an IP address to the client, it generates a virtual local area network joining feedback message, and sends the virtual local area network joining feedback message to the client through the communication connection.

S705: If the virtual LAN joining request carries the IP address of the client, it is detected whether the IP address of the client is used by other clients.

In this step, after receiving the virtual LAN joining request sent by the client, the server queries whether the virtual LAN joining request carries the client's IP address. If the virtual LAN joining request carries the client's IP address, there is a possibility that the client's IP address conflicts with the IP addresses of other clients. Therefore, the server detects whether the client's IP address is used by other clients.

Specifically, the IP address of the virtual port corresponding to the client can be generated in two ways. One is automatic generation, in which the server allocates the IP address; the other is static generation, in which the user specifies the IP address, which will not change after being specified. In the case of static generation, the IP address of the virtual port will be carried in the virtual LAN joining request and sent to the server. The server will check whether the static IP address has been used by other terminals in the virtual LAN. If it has been used, the terminal corresponding to the client will not be allowed to join the virtual LAN.

S706: If the IP address of the client is not used by other clients, the client is allowed to join the virtual LAN.

In this step, the IP address of the client is detected by the server. If the IP address of the client is not used by other clients, it means that there is no conflict in the IP address of the client, and the client is allowed to join the virtual LAN.

S707: Send a virtual local area network joining feedback message to the client.

The specific implementation of this step is the same as that of step S704, and will not be repeated here.

S708: If the IP address of the client is used by other clients, the client is not allowed to join the virtual LAN, and a virtual LAN joining feedback message indicating a failure to join the LAN is returned to the client.

In this step, the IP address of the client is detected by the server. If the IP address of the client is used by other clients, it means that there is a conflict in the IP address of the client. The client is not allowed to join the virtual LAN, and a virtual LAN joining feedback message indicating the failure of joining the LAN is returned to the client through the communication connection. In some examples, the user can reassign the IP address for the client.

Optionally, after receiving the virtual LAN joining feedback message returned by the server, if the virtual LAN joining feedback message indicates that the client has successfully joined the virtual LAN, the virtual LAN joining feedback message also includes the authentication field and configuration information configured by the server, wherein the configuration information includes message compression information, message encryption information and the IP addresses of all clients in the virtual LAN.

In the communication method based on virtual local area network provided in this embodiment, the client scans and determines the network device where the server is deployed, and then obtains the IP address of the server, and sends a virtual local area network joining request to the server. The server verifies the client according to the virtual local area network joining request, and allows the client to join the virtual local area network if the verification passes, and does not allow the client to join the virtual local area network if the verification fails. Through the above method, security is improved, and interconnection between terminal devices in different local area networks is realized.

It should be noted that the client in the above embodiment of forming a virtual local area network may be the first client mentioned above, or may be the second client, or may be any other client.

FIG8 is a flow chart of Embodiment 5 of the communication method based on a virtual local area network provided in an embodiment of the present application. Referring to FIG8 , based on the above embodiments, the configuration information of the virtual local area network includes message compression information and message encryption information, and step S304 can be implemented by the following steps:

S801: Decompress the transmission message according to the message compression information to obtain a decompressed message.

S802: Decrypt the decompressed message according to the message encryption information, and perform tunnel decapsulation to obtain a service message.

After the second client at the message receiving end receives the transmission message, it decompresses, decrypts and unblocks the tunnel of the transmission message according to the configuration information of the virtual LAN to obtain the service message, and transmits the service message to the application corresponding to the second terminal through the virtual interface for service operation.

The communication method based on virtual local area network provided in this embodiment decompresses, decrypts and unblocks the transmission message by using the same configuration information as the first client sending the message, thereby saving network bandwidth and improving transmission efficiency and data security.

FIG9 is a schematic diagram of the structure of the first embodiment of the communication device based on the virtual local area network provided by the embodiment of the present application. As shown in FIG9, a first client for performing virtual local area network service is provided in the first terminal, and the communication device based on the virtual local area network 900 includes: a first acquisition module 901, which is used to monitor the virtual interface of the first terminal through the first client to obtain the service message to be sent, and the service message includes the Internet Protocol IP address of the second client as the receiving end of the service message; an encapsulation module 902, which is used to encapsulate the service message according to the configuration information of the virtual local area network obtained in advance to obtain the transmission message; a transmission module 903, which is used to transmit the transmission message to the second client through the virtual local area network according to the IP address of the second client. Among them, the second terminal where the second client is located belongs to the same virtual local area network as the first terminal.

In one possible design, the transmission module 903 includes: a determination unit, used to determine whether a point-to-point communication channel is established between the first client and the second client based on the IP address of the second client; a first transmission unit, used to send a transmission message to the second client through the point-to-point communication channel based on the IP address of the second client if a point-to-point communication channel is established between the first client and the second client; and a second transmission unit, used to transmit the transmission message to the second client through the server of the virtual local area network if a point-to-point communication channel is not established between the first client and the second client.

In one possible design, the configuration information of the virtual local area network includes message compression information and message encryption information, and the encapsulation module 902 includes: an encapsulation unit, used to perform tunnel encapsulation on the service message to obtain an encapsulated message; a compression and encryption unit, used to encrypt the encapsulated message according to the message encryption information, and compress the encrypted message according to the message compression information to obtain a transmission message.

In a possible design, the communication device 900 based on the virtual local area network further includes: a first receiving module 904, which is used to receive the authentication field configured for joining the virtual local area network, the IP address of the server, and the authentication field sent by the cloud platform. The IP addresses of all clients in the virtual LAN; a first sending module 905, used to send a virtual LAN access request to the server according to the IP address of the server, the authentication field and the IP address of the first client; a second receiving module 906, used to receive an access confirmation message returned by the server, the access confirmation message is used to indicate that the first client has successfully accessed the virtual LAN.

In one possible design, the communication device 900 based on the virtual local area network also includes: a second acquisition module 907, which is used to scan the uplink network device of the first terminal through the first client to obtain the network device of the server on which the virtual local area network is deployed; a second sending module 908, which is used to send a virtual local area network joining request to the server in the network device; and a third receiving module 909, which is used to receive the virtual local area network joining feedback message returned by the server, and the virtual local area network joining feedback message is used to indicate whether the first client has successfully joined the virtual local area network.

In one possible design, if the virtual LAN joining feedback message indicates that the first client has successfully joined the virtual LAN, the virtual LAN joining feedback message also includes an authentication field configured by the server and configuration information of the virtual LAN; the configuration information of the virtual LAN includes message compression information, message encryption information and the IP addresses of all clients in the virtual LAN.

In one possible design, the virtual LAN join request includes the IP address of the first client.

In a possible design, if the virtual local area network joining request does not include the IP address of the first client, the IP address of the first client in the configuration information of the virtual local area network is allocated by the server.

The device provided in the embodiment of the present application can be used to execute the method on the first terminal side in the above embodiment. Its implementation principle and technical effects are similar and will not be repeated here.

FIG10 is a schematic diagram of the structure of the second embodiment of the communication device based on the virtual local area network provided by the embodiment of the present application. As shown in FIG10 , a second client for performing virtual local area network service is provided in the second terminal, and the communication device based on the virtual local area network 1000 includes: a first receiving module 1001, which is used to receive the transmission message transmitted by the first client through the second client; and a decapsulation module 1002, which is used to decapsulate the transmission message according to the configuration information of the virtual local area network obtained in advance to obtain the service message. Among them, the first terminal where the first client is located and the second terminal belong to the same virtual local area network.

In one possible design, the first receiving module 1001 includes: a first receiving unit for receiving a transmission message sent by the first client through point-to-point communication; or a second receiving unit for receiving a transmission message transmitted by the first client and sent by a server of a virtual local area network.

In one possible design, the configuration information of the virtual local area network includes message compression information and message encryption information, and the decompression module 1002 includes: a decompression unit, used to decompress the transmission message according to the message compression information to obtain a decompressed message; a decryption and decompression unit, used to decrypt the decompressed message according to the message encryption information, and perform tunnel decapsulation to obtain a business message.

In one possible design, the communication device 1000 based on the virtual LAN also includes: a second receiving module 1003, used to receive the authentication field configured for joining the virtual LAN, the IP address of the server and the IP addresses of all clients in the virtual LAN sent by the cloud platform; a first sending module 1004, used to send a virtual LAN access request to the server according to the IP address of the server, the authentication field and the IP address of the second client; a third receiving module 1005, used to receive an access confirmation message returned by the server, and the access confirmation message is used to indicate that the second client has successfully accessed the virtual LAN.

In one possible design, the communication device 1000 based on the virtual local area network also includes: an acquisition module 1006, which is used to scan the uplink network device of the second terminal through the second client to obtain the network device of the server on which the virtual local area network is deployed; a second sending module 1007, which is used to send a virtual local area network joining request to the server in the network device; and a fourth receiving module 1008, which is used to receive the virtual local area network joining feedback message returned by the server, and the virtual local area network joining feedback message is used to indicate whether the second client has successfully joined the virtual local area network.

In one possible design, if the virtual local area network joining feedback message indicates that the second client has successfully joined the virtual local area network, the virtual local area network joining feedback message also includes the authentication field configured by the server and the virtual local area network. Configuration information, the configuration information of the virtual local area network includes message compression information, message encryption information and IP addresses of all clients in the virtual local area network.

In one possible design, the virtual LAN join request includes the IP address of the second client.

In a possible design, if the virtual LAN joining request does not include the IP address of the second client, the IP address of the second client in the configuration information of the virtual LAN is allocated by the server.

The device provided in the embodiment of the present application can be used to execute the method on the second terminal side in the above embodiment. Its implementation principle and technical effect are similar and will not be repeated here.

FIG11 is a schematic diagram of the structure of the third embodiment of the communication device based on the virtual local area network provided by the embodiment of the present application. As shown in FIG11 , a server for performing virtual local area network services is provided in the network device, and the communication device based on the virtual local area network 1100 includes: a first receiving module 1101, which is used to receive a transmission message sent by a first client, and the transmission message includes the IP address of a second client at the message receiving end; a transmission module 1102, which is used to send the transmission message to the second client according to the IP address of the second client. The first client and the second client both join the same virtual local area network served by the server.

In one possible design, the communication device 1100 based on the virtual LAN also includes: a second receiving module 1103, which is used to receive the authentication field configured for the virtual LAN networking, the IP address of the server and the IP addresses of all clients in the virtual LAN sent by the cloud platform; a third receiving module 1104, which is used to receive a LAN access request sent by any client, and the LAN access request includes an authentication field; a verification module 1105, which is used to verify the authentication field in the LAN access request according to the authentication field configured by the cloud platform; a first confirmation module 1106, which is used to allow the client to access the virtual LAN corresponding to the IP address of the server after the authentication field is verified; a first return module 1107, which is used to return an access confirmation message to the client, and the access confirmation message is used to indicate that the client has successfully accessed the virtual LAN.

In one possible design, the communication device 1100 based on the virtual LAN further includes: a fourth receiving module 1108, used to receive a virtual LAN joining request sent by any client; a confirmation allocation module 1109, used to allow the client to join the virtual LAN and allocate an IP address to the client if the virtual LAN joining request does not carry the client's IP address; a sending module 1110, used to send a virtual LAN joining feedback message to the client, the virtual LAN joining feedback message including an authentication field configured by the server and configuration information of the virtual LAN, the configuration information of the virtual LAN including: message compression information, message encryption information, the IP address allocated to the client, and the IP addresses of other clients in the virtual LAN.

In one possible design, the communication device 1100 based on the virtual local area network also includes: a detection module 1111, which is used to detect whether the IP address of the client is used by other clients in the virtual local area network if the virtual local area network joining request carries the IP address of the client; a second confirmation module 1112, which is used to allow the client to join the virtual local area network if the IP address of the client is not used by other clients; a second return module 1113, which is used to return a virtual local area network joining feedback message to the client, the virtual local area network joining feedback message including an authentication field configured by the server and the configuration information of the virtual local area network, and the configuration information of the virtual local area network including: message compression information, message encryption information and the IP addresses of other clients in the virtual local area network.

In one possible design, the virtual LAN-based communication device 1100 further includes: a confirmation return module 1114, which is used to not allow the client to join the virtual LAN if the client's IP address is used by other clients in the virtual LAN, and return a virtual LAN joining feedback message to the client to indicate that the LAN joining failed.

The device provided in the embodiment of the present application can be used to execute the method on the network device side in the above embodiment. Its implementation principle and technical effects are similar and will not be repeated here.

It should be noted that it should be understood that the division of the various modules of any of the above devices is only a division of logical functions. In actual implementation, they can be fully or partially integrated into one physical entity, or they can be physically separated. And these modules can all be implemented in the form of software calling through processing elements; they can also be all implemented in the form of hardware; some modules can also be implemented in the form of processing elements calling software, and some modules can be implemented in the form of hardware. For example, the super block acquisition module can be a separate processing element, or it can be integrated in a processing unit of the above device. In addition, it can also be stored in the memory of the above-mentioned device in the form of program code, and a processing element of the above-mentioned device can call and execute the function of the above super block acquisition module. The implementation of other modules is similar. In addition, all or part of these modules can be integrated together, or they can be implemented independently. The processing element here can be an integrated circuit with signal processing capabilities. In the implementation process, each step of the above method or each of the above modules can be completed by an integrated logic circuit of hardware in the processor element or an instruction in the form of software.

FIG12 is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application. As shown in FIG12, the electronic device 1200 includes: a storage 1201, a processor 1202, a client 1203, and a virtual interface 1204. The memory 1201 stores computer execution instructions; the processor 1202 executes the computer execution instructions stored in the memory 1201 to implement the above-mentioned methods on the first terminal side and the second terminal side. The client 1203 is used to establish a connection with the server, and tunnel encapsulates the service message of the terminal and sends it to the server, and at the same time decapsulates the transmission message forwarded by the server and sends it to the corresponding service of the terminal. The virtual interface 1204 is used to receive service messages initiated by users.

FIG13 is a schematic diagram of the structure of a network device provided in an embodiment of the present application. As shown in FIG13 , an electronic device 1300 includes: a memory 1301, a processor 1302, a server 1303, and a communication interface 1304. The memory 1301 stores computer-executable instructions; the processor 1302 executes the computer-executable instructions stored in the memory 1301 to implement the method on the network device side described above. The server 1303 is used to transfer transmission messages of each client. The communication interface 1304 is used for the server to communicate with the client.

An embodiment of the present application also provides a computer-readable storage medium, in which computer-executable instructions are stored. When the computer-executable instructions are executed by a processor, they are used to execute the virtual local area network-based communication methods provided by the various implementations described above.

The computer-readable storage medium mentioned above can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory, electrically erasable programmable read-only memory, erasable programmable read-only memory, programmable read-only memory, read-only memory, magnetic memory, flash memory, magnetic disk or optical disk. The readable storage medium can be any available medium that can be accessed by a general or special-purpose computer.

Optionally, a readable storage medium is coupled to a processor so that the processor can read information from the readable storage medium and write information to the readable storage medium. Of course, the readable storage medium can also be an integral part of the processor. The processor and the readable storage medium can be located in an application specific integrated circuit (ASIC). Of course, the processor and the readable storage medium can also exist in the device as discrete components.

An embodiment of the present application also provides a computer program product, which includes a computer program. The computer program is stored in a computer-readable storage medium. At least one processor can read the computer program from the computer-readable storage medium. When at least one processor executes the computer program, the technical solution provided by any of the above method embodiments can be implemented.

In the present application, "at least one" means one or more, and "plurality" means two or more. "And/or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and/or B can represent: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. The character "/" generally indicates that the previous and next associated objects are in an "or" relationship; in the formula, the character "/" indicates that the previous and next associated objects are in a "division" relationship. "At least one of the following items" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b, or c can represent: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, c can be single or multiple.

It is to be understood that the various numerical numbers involved in the embodiments of the present application are only for the convenience of description and are not intended to limit the scope of the embodiments of the present application. In the embodiments of the present application, the size of the sequence number of each process does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the invention disclosed herein. This application is intended to cover any modifications, uses, or adaptive changes of the present application, which modifications, uses, or adaptive changes of the present application Or the adaptive changes follow the general principles of this application and include common knowledge or customary technical means in the technical field that are not disclosed in this application. The description and examples are only regarded as exemplary, and the true scope and spirit of this application are pointed out by the following claims.

It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims (27)

A communication method based on a virtual local area network is applied to a first terminal, wherein the first terminal is provided with a first client for performing a virtual local area network service, and is characterized in that the method comprises: monitoring the virtual interface of the first terminal through the first client to obtain a service message to be sent, wherein the service message includes an Internet Protocol IP address of a second client as a receiving end of the service message, and the second terminal where the second client is located belongs to the same virtual local area network as the first terminal; According to the pre-acquired configuration information of the virtual local area network, encapsulating the service message to obtain a transmission message; According to the IP address of the second client, the transmission message is transmitted to the second client through the virtual local area network. The method according to claim 1, characterized in that the transmitting the transmission message to the second client through the virtual local area network according to the IP address of the second client comprises: Determining whether a point-to-point communication channel is established between the first client and the second client according to the IP address of the second client; If a point-to-point communication channel has been established between the first client and the second client, sending the transmission message to the second client through the point-to-point communication channel according to the IP address of the second client; If a point-to-point communication channel is not established between the first client and the second client, the transmission message is transmitted to the second client via the server of the virtual local area network. The method according to claim 1 is characterized in that the configuration information of the virtual local area network includes message compression information and message encryption information; and the encapsulating the service message according to the pre-acquired configuration information of the virtual local area network to obtain the transmission message comprises: Performing tunnel encapsulation on the service message to obtain an encapsulated message; The encapsulated message is encrypted according to the message encryption information, and the encrypted message is compressed according to the message compression information to obtain the transmission message. The method according to any one of claims 1 to 3, characterized in that before the first client monitors the virtual interface of the first terminal to obtain the service message to be sent, the method further comprises: Receive the authentication field configured for joining the virtual local area network, the IP address of the server, and the IP addresses of all clients in the virtual local area network sent by the cloud platform; Sending a virtual local area network access request to the server according to the IP address of the server, the authentication field and the IP address of the first client; Receive an access confirmation message returned by the server, where the access confirmation message is used to indicate that the first client has successfully accessed the virtual local area network. The method according to claim 1 or 2, characterized in that before the first client monitors the virtual interface of the first terminal to obtain the service message to be sent, the method further comprises: Scanning the uplink network device of the first terminal through the first client to obtain the network device of the server side where the virtual local area network is deployed; Sending a virtual local area network joining request to the server in the network device; Receive a virtual local area network joining feedback message returned by the server, where the virtual local area network joining feedback message is used to indicate whether the first client successfully joins the virtual local area network. The method according to claim 5, characterized in that if the virtual local area network joining feedback message indicates that the first client has successfully joined the virtual local area network, then the virtual local area network joining feedback message also includes the authentication field configured by the server and the configuration information of the virtual local area network; The configuration information of the virtual local area network includes message compression information, message encryption information and IP addresses of all clients in the virtual local area network. The method according to claim 5 is characterized in that the virtual local area network joining request includes the IP address of the first client. The method according to claim 5 is characterized in that if the virtual local area network joining request does not include the IP address of the first client, the IP address of the first client in the configuration information of the virtual local area network is allocated by the server. A communication method based on a virtual local area network is applied to a second terminal, wherein the second terminal is provided with a second client for performing a virtual local area network service, and is characterized in that the method comprises: receiving, by the second client, a transmission message transmitted by the first client, wherein a first terminal where the first client is located and the second terminal belong to the same virtual local area network; According to the pre-acquired configuration information of the virtual local area network, the transmission message is unsealed to obtain a service message. The method according to claim 9, wherein the step of receiving, by the second client, a transmission message transmitted by the first client comprises: receiving the transmission message sent by the first client through point-to-point communication; or, Receive the transmission message transmitted by the first client and sent by the server of the virtual local area network. The method according to claim 9 is characterized in that the configuration information of the virtual local area network includes message compression information and message encryption information; and the decapsulating the transmission message according to the pre-acquired configuration information of the virtual local area network to obtain the service message comprises: Decompressing the transmission message according to the message compression information to obtain a decompressed message; The decompressed message is decrypted according to the message encryption information, and tunnel decapsulation is performed to obtain the service message. The method according to any one of claims 9 to 11, characterized in that before receiving, by the second client, the transmission message transmitted by the first client, the method further comprises: Receiving the authentication field configured for joining the virtual local area network, the Internet Protocol IP address of the server, and the IP addresses of all clients in the virtual local area network sent by the cloud platform; Sending a virtual local area network access request to the server according to the IP address of the server, the authentication field and the IP address of the second client; Receive an access confirmation message returned by the server, where the access confirmation message is used to indicate that the second client has successfully accessed the virtual local area network. The method according to claim 9 or 10, characterized in that before receiving, by the second client, the transmission message transmitted by the first client, the method further comprises: Scanning the uplink network device of the second terminal through the second client to obtain the network device of the server side where the virtual local area network is deployed; Sending a virtual local area network joining request to the server in the network device; Receive a virtual local area network joining feedback message returned by the server, where the virtual local area network joining feedback message is used to indicate whether the second client successfully joins the virtual local area network. The method according to claim 13, characterized in that if the virtual local area network joining feedback message indicates that the second client successfully joins the virtual local area network, then the virtual local area network joining feedback message also includes the authentication field configured by the server and the configuration information of the virtual local area network; The configuration information of the virtual local area network includes message compression information, message encryption information and IP addresses of all clients in the virtual local area network. The method according to claim 13 is characterized in that the virtual local area network joining request includes the IP address of the second client. The method according to claim 13 is characterized in that if the virtual local area network joining request does not include the IP address of the second client, the IP address of the second client in the configuration information of the virtual local area network is allocated by the server. A communication method based on a virtual local area network is applied to a network device, wherein the network device is provided with a server end for performing virtual local area network services, and is characterized in that the method comprises: Receiving a transmission message sent by a first client, wherein the transmission message includes an IP address of a second client as a receiving end of the transmission message, wherein both the first client and the second client join the same virtual local area network served by the server; The transmission message is sent to the second client according to the IP address of the second client. The method according to claim 17, characterized in that before receiving the transmission message sent by the first client, the method further comprises: Receiving the authentication field configured for the virtual local area network, the IP address of the server, and the IP addresses of all clients in the virtual local area network sent by the cloud platform; Receiving a virtual local area network access request sent by any client, wherein the virtual local area network access request includes an authentication field; Verifying the authentication field in the virtual local area network access request according to the authentication field configured by the cloud platform; After the authentication field is verified, the client is allowed to access the virtual local area network corresponding to the IP address of the server; An access confirmation message is returned to the client, where the access confirmation message is used to indicate that the client has successfully accessed the virtual local area network. The method according to claim 17, characterized in that before receiving the transmission message sent by the first client, the method further comprises: Receive a virtual local area network joining request sent by any client; If the virtual local area network joining request does not carry the IP address of the client, allowing the client to join the virtual local area network and allocating an IP address to the client; A virtual local area network joining feedback message is sent to the client, wherein the virtual local area network joining feedback message includes the authentication field and configuration information configured by the server, and the configuration information includes message compression information, message encryption information, the IP address assigned to the client, and the IP addresses of other clients in the virtual local area network. The method according to claim 19, characterized in that the method further comprises: If the virtual local area network joining request carries the IP address of the client, detecting whether the IP address of the client is used by other clients in the virtual local area network; If the IP address of the client is not used by other clients in the virtual local area network, allowing the client to join the virtual local area network; The virtual LAN joining feedback message is returned to the client, wherein the virtual LAN joining feedback message includes the authentication field and the configuration information configured by the server, and the configuration information includes the message compression information, the message encryption information and the IP addresses of other clients in the virtual LAN. The method according to claim 20, characterized in that the method further comprises: If the IP address of the client is used by other clients in the virtual LAN, the client is not allowed to join the virtual LAN, and a virtual LAN joining feedback message indicating a LAN joining failure is returned to the client. A communication device based on a virtual local area network, characterized in that it is applied to a first terminal, wherein the first terminal is provided with a first client for performing a virtual local area network service, and the device comprises: a first acquisition module, configured to monitor the virtual interface of the first terminal through the first client to acquire a service message to be sent, wherein the service message includes an Internet Protocol IP address of a second client as a receiving end of the service message, and the second terminal where the second client is located belongs to the same virtual local area network as the first terminal; An encapsulation module, used to encapsulate the service message according to the pre-acquired virtual local area network configuration information to obtain a transmission message; A transmission module is used to transmit the transmission message to the second client through the virtual local area network according to the IP address of the second client. A communication device based on a virtual local area network, characterized in that it is applied to a second terminal, wherein the second terminal is provided with a second client for performing a virtual local area network service, and the device comprises: A first receiving module, configured to receive a transmission message transmitted by a first client through the second client, wherein a first terminal where the first client is located and the second terminal belong to the same virtual local area network; The decapsulation module is used to decapsulate the transmission message according to the pre-acquired configuration information of the virtual local area network to obtain the service message. A communication device based on a virtual local area network, characterized in that it is applied to a network device, wherein the network device is provided with a server end for performing virtual local area network services, and the device comprises: The first receiving module is used to receive a transmission message sent by a first client, wherein the transmission message includes The IP address of the second client at the receiving end of the transmission message, wherein the first client and the second client are both added to the same virtual local area network served by the server; A transmission module is used to send the transmission message to the second client according to the IP address of the second client. A terminal device, characterized in that it comprises a memory, a processor, a client and a virtual interface; The memory stores computer-executable instructions; The processor executes the computer-executable instructions stored in the memory to implement the method according to any one of claims 1 to 16. A network device, characterized in that it includes a memory, a processor, a server, and a communication interface; The memory stores computer-executable instructions; The processor executes the computer-executable instructions stored in the memory to implement the method according to any one of claims 17 to 21. A computer-readable storage medium, characterized in that the computer-readable storage medium stores computer-executable instructions, and when the computer-executable instructions are executed by a processor, they are used to implement the communication method based on a virtual local area network as described in any one of claims 1 to 21.