CN109922164B - Address translation method and device and computer storage medium - Google Patents

Abstract

The embodiments of the present application disclose an address translation method, an apparatus, and a computer storage medium. The method is applied to a terminal device, and the method includes: after enabling a bridge mode of the terminal device, receiving a data packet, and the bridge mode is used to realize The wireless local area network WLAN of the terminal device is shared; the type of the data packet is determined according to the received data packet, and the type of the data packet includes the corresponding data packet forwarded to the network side through the client interface of the terminal device The first type and the second type corresponding to the data packet forwarded from the network side received through the client interface; when the type of the data packet is the first type, the transmission in the data packet is Perform address translation on the address; when the type of the data message is the second type, perform address translation on the receiving address in the data message; after generating a new data message according to the address translation, send the new data message data packets.

Description

A kind of address translation method, device and computer storage medium

technical field

The present application relates to the field of wireless communication technologies, and in particular, to an address translation method, apparatus, and computer storage medium.

Background technique

With the continuous development of intelligent terminal applications, a wireless local area network (Wireless Local Area Networks, WLAN) hotspot function has become one of the standard modules of an intelligent terminal. Wireless Fidelity (WiFi), as a wireless access method in WLAN technology, enables the WLAN hotspot function of the smart terminal, and the smart terminal shares the WiFi network with other users through the hotspot function (referred to as WLAN sharing), so that Terminal devices of other wireless stations (Station, STA) can connect to and access the network.

For other wireless stations, it needs to go through a network address translation (Network Address Translation, NAT) and a client (client) interface to access the remote network. In the existing network access process, on the one hand, NAT translation needs to consume the resources of the Central Processing Unit (CPU), and the wireless throughput will be affected when the CPU resources are tight; on the other hand, the Soft Access Point (Soft Access Point) , Soft AP) must also be provided with Dynamic Host Configuration Protocol Server (Dynamic Host Configuration Protocol Server, DHCP Server) service and maintain local IP address resources, while Soft AP also needs to avoid wireless routing access point (Root Access Point, Root AP) ) between gateway conflicts.

SUMMARY OF THE INVENTION

The main purpose of this application is to propose an address translation method, device and computer storage medium, by adding an address translation engine (Address Translation Engine, ATE) mechanism in the client driver to realize the update and maintenance of address translation and address translation table, effectively The problem of CPU resource consumption and gateway conflict caused by the existing solution is solved, and the WLAN sharing in the bridge mode is better realized.

In order to achieve the above-mentioned purpose, the technical scheme of the present application is achieved in this way:

In a first aspect, an embodiment of the present application provides an address translation method, the method is applied to a terminal device, and the method includes:

After the bridging mode of the terminal device is enabled, a data packet is received; wherein the bridging mode is used to realize WLAN sharing of the terminal device;

Determine the type of the data packet according to the received data packet; wherein, the type of the data packet includes the first type corresponding to the data packet forwarded to the network side through the client interface of the terminal device and the The client interface receives the second type corresponding to the data message forwarded from the network side;

When the type of the data packet is the first type, perform address translation on the sending address in the data packet; when the type of the data packet is the second type, perform address translation on the sending address in the data packet. Receive address for address translation;

After a new data packet is generated according to the address translation, the new data packet is sent.

In a second aspect, an embodiment of the present application provides an address conversion apparatus, the address conversion apparatus is applied to a terminal device, and the address conversion apparatus includes: a receiving unit, a determining unit, a converting unit, and a sending unit, wherein,

The receiving unit is configured to receive the data packet after enabling the bridge mode of the terminal device; wherein the bridge mode is used to realize WLAN sharing of the terminal device;

The determining unit is configured to determine the type of the data packet according to the received data packet; wherein, the type of the data packet includes the type of the data packet that is forwarded to the network side through the client interface of the terminal device. The corresponding first type and the second type corresponding to the data message forwarded from the network side received through the client interface;

The conversion unit is configured to perform address translation on the sending address in the data packet when the type of the data packet is the first type; when the type of the data packet is the second type, perform address translation on the sending address of the data packet. performing address translation on the receiving address in the data message;

The sending unit is configured to send the new data message after generating the new data message according to the address translation.

In a third aspect, an embodiment of the present application provides an address translation device, where the address translation device includes: a memory and a processor; wherein,

the memory for storing a computer program executable on the processor;

The processor is configured to execute the steps of the method according to the first aspect when running the computer program.

In a fourth aspect, an embodiment of the present application provides a computer storage medium, where an address translation program is stored in the computer storage medium, and when the address translation program is executed by at least one processor, the steps of the method described in the first aspect are implemented.

An address translation method, device, and computer storage medium provided by the embodiments of the present application are applied to a terminal device, and after a bridge mode of the terminal device is enabled, a data packet is received; wherein, the bridge mode is used to realize all WLAN sharing of the terminal device; then determine the type of the data packet according to the received data packet; wherein, the type of the data packet includes forwarding the data packet to the network side through the client interface of the terminal device The corresponding first type and the second type corresponding to the data packet forwarded from the network side received through the client interface; when the type of the data packet is the first type, address conversion is performed on the sending address in the text; when the type of the data message is the second type, address conversion is performed on the receiving address in the data message; finally, a new data message is generated according to the address conversion , send the new data message; in this way, because the terminal device adopts the bridge mode to realize WLAN sharing, and the ATE mechanism is added in the client interface of the terminal device to realize the address translation of the sending address or the receiving address in the data message , thereby effectively solving the problem of CPU resource consumption and gateway conflict caused by the existing solution, and better realizing WLAN sharing.

Description of drawings

FIG. 1 is a schematic diagram of the composition structure of a common network topology provided by a related technical solution;

2 is a schematic flowchart of an address translation method provided by an embodiment of the present application;

3 is a schematic structural diagram of a bridge mode network topology provided by an embodiment of the present application;

FIG. 4 is a schematic diagram of the composition structure of another bridge mode network topology provided by an embodiment of the present application;

5 is a schematic diagram of a composition structure of an address translation table provided by an embodiment of the present application;

6 is a schematic diagram of the composition and structure of an address translation device provided by an embodiment of the present application;

7 is a schematic diagram of a specific hardware structure of an address translation device provided by an embodiment of the present application;

FIG. 8 is a schematic diagram of the composition and structure of a terminal device according to an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application.

With the rapid development of smart terminals and mobile Internet applications, mobile data traffic is increasing at an inestimable speed. In order to effectively relieve traffic pressure and continue to promote the development of mobile communication services, more and more operators around the world choose to vigorously develop WLAN technology. Because WLAN has the characteristics of high speed, mobility, easy expansion and low cost, almost all terminal devices at present take WLAN technology as the basic configuration. In this way, the WLAN hotspot function of the terminal device is turned on, and the terminal device, as a mobile hotspot, can be used by other users within a certain coverage area.

Among them, WiFi Tehering is widely used in terminal devices, mainly sharing the WiFi network to other users through the hotspot function, which can also be called WLAN sharing. Using WLAN sharing, other terminal devices can connect to and access the network, and an example of the composition of a common WiFi Tehering network topology is shown in Figure 1. In the network topology shown in Figure 1, the topology includes a wireless router access point (represented by Root AP), a terminal device with a hotspot function (represented by STA0) and surrounding wireless access sites (represented by STA1), STA0 also includes a client (Client) interface and a soft wireless access point (Soft AP) interface; wherein, STA0 is connected to the Root AP through the Client interface to access the network, and STA1 implements WLAN sharing with STA0 through the Soft AP interface to access the network; To access the network, STA1 must go through NAT translation (including the source address translation (Source NAT, SNAT) and destination address translation (Destination NAT, DNAT) in STA0) and the Client interface to access the remote network (such as Root AP).

Based on the network topology shown in Figure 1, in the Root AP, the Gateway (Gateway) is assumed to be 192.168.0.1, the DHCP Server is assumed to be 192.168.0.100/200, and the Basic Service Set Identifier (BSSID) corresponding to the Root AP ) is represented by RootAP-BSSID, BSSID is actually represented as the MAC address of the Root AP, which is used to identify the basic service set (Basic Service Se, BSS) managed by the Root AP side, and the RootAP-BSSID is assumed to be xx:xx:xx:xx :xx:x0; In STA0, for the Client interface side, the Media Access Control (MAC) address corresponding to the Client interface is represented by Client-MAC, and Client-MAC is assumed to be xx:xx:xx:xx:xx :x4, the Internet Protocol (IP) address corresponding to the Client interface is represented by Client-IP, which is assumed to be 192.168.0.100; for the Soft AP interface side, the gateway (Gateway) is assumed to be 192.168.43.1, and the DHCP Server is assumed to be 192.168.43.100/200, AP-BSSID is assumed to be xx:xx:xx:xx:xx:x3; in STA1, the MAC address corresponding to STA1 is represented by STA1-MAC, and STA1-MAC is assumed to be xx:xx:xx: xx:xx:x1, the IP address corresponding to STA1 is represented by STA1-IP, which is assumed to be 192.168.43.100.

Specifically, STA0 can realize WLAN sharing by enabling the WiFi Tehering hotspot function, and a network interface (ie Client interface) of STA0 is connected to the Root AP, and the Client-IP obtained from the DHCP Server of the Root AP is 192.168.0.100. Then STA0 can access the wireless network through the Client interface; and another network interface (ie Soft AP interface) of STA0 is provided to the surrounding wireless stations (such as STA1) in the form of access points, and then STA1 obtains from the DHCP Server in the Soft AP. The corresponding STA1-IP is 192.168.43.100, so that STA1 can also access the network. According to the network topology shown in Figure 1, if STA1 wants to access the remote network, it must go through NAT conversion and through the Client interface to access the remote network; but the network topology shown in Figure 1 still has the following defects: NAT conversion needs to be performed in the protocol stack, which will consume CPU resources, especially when the CPU resources are tight, which will affect the wireless throughput; on the other hand, the Soft AP side must be provided with a DHCP Server service and maintain local IP address resources. At the same time, because the Soft AP side gateway The settings are different from those on the Root AP side, and gateway conflicts need to be avoided.

In order to solve the above-mentioned defects, an embodiment of the present application provides an address translation method, which is applied to a terminal device with a bridge mode. After the bridge mode of the terminal device is turned on, a data packet is first received; For the received data message, determine the type of the data message; wherein, the type of the data message includes the first type corresponding to the data message forwarded to the network side through the client interface of the terminal device and the first type corresponding to the data message forwarded through the client interface of the terminal device. The client interface receives the second type corresponding to the data packet forwarded from the network side; when the type of the data packet is the first type, address translation is performed on the sending address in the data packet; When the type of the data packet is the second type, perform address translation on the receiving address in the data packet; finally, after generating a new data packet according to the address translation, send the new data packet ;Because the terminal device adopts the bridge mode to realize WLAN sharing, and the ATE mechanism is added to the client interface of the terminal device to realize the address translation of the sending address or the receiving address in the data message, thus effectively solving the problems brought by the existing solution. The problem of CPU resource consumption and gateway conflict is better to achieve WLAN sharing.

The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

Referring to FIG. 2, it shows an address translation method provided by an embodiment of the present application, the method is applied to a terminal device, and the method may include:

S201: After enabling the bridge mode of the terminal device, receive a data packet; wherein the bridge mode is used to implement WLAN sharing of the terminal device;

S202: Determine the type of the data packet according to the received data packet; wherein, the type of the data packet includes a first type corresponding to forwarding the data packet to the network side through the client interface of the terminal device and receiving the second type corresponding to the data message forwarded from the network side through the client interface;

S203: When the type of the data packet is the first type, perform address translation on the sending address in the data packet; when the type of the data packet is the second type, perform address translation on the data packet The receiving address in the address is converted;

S204: After generating a new data packet according to the address translation, send the new data packet.

It should be noted that the data message transmitted by the embodiments of the present application is not limited to data information, but may also be request information, or even other types of information, which are not specifically limited in the embodiments of the present application.

It should also be noted that the bridge mode (also called bridge mode) uses the bridging function of the terminal device to establish a wireless connection with the network side (such as a wireless router, base station, etc.), so that the terminal device itself sends out a new wireless signal to A new wireless coverage area is formed, which effectively solves the wireless coverage problem of weak signal and signal blind spots. That is to say, the terminal device can realize WLAN sharing by adopting the bridge mode; in this way, a network connection is established between the terminal device and the wireless router on the network side to access the remote network, while the surrounding wireless stations (such as the first wireless station and the second wireless station) station) can also access the network and perform data interactive communication through WLAN sharing.

Understandably, in WLAN sharing, the data transmission between wireless stations adopts the stipulations of the IEEE 802.11 protocol. Among them, IEEE 802.11 is a standard protocol commonly used in wireless local area networks. According to the stipulations of the IEEE 802.11 protocol, for the frame format of the data message, the MAC frame format is generally used. Referring to Table 1, it shows an example of the composition structure of a basic MAC frame format provided by the embodiment of the present application; as shown in Table 1, the MAC frame contains 4 address fields such as Address1, Address2, Address3, and Address4. Among them, Address1 is fixedly expressed as the receiving address (ReceiverAddress, RA), Address2 is fixedly expressed as the transmitting address (Transmitter Address, TA), and Address3 depends on the network type used by the MAC frame to provide access points and distributed systems (Distributed system). System, DS) for filtering, Address4 has not been used yet. In some cases, the receiving address may be a destination address (DestinationAddress, Dest Address or DA), and the sending address may be a source address (Source Address, SA), which is not specifically limited in this embodiment of the present application. In addition, the MAC frame also includes fields such as To DS and From DS; among them, To DS: 1 indicates the MAC frame sent from the wireless station STA side to the wireless router AP side, 1 indicates other MAC frames; From DS: 1 indicates that from The MAC frame on the AP side of the wireless router, 0 means other MAC frames.

Table 1

It can be seen from Table 1 that when the MAC frame is sent from the wireless station STA side to the wireless router AP side (that is, ToAP), at this time To DS is 1, From DS is 0, and Address1 can be set to the BSSID corresponding to the AP side, where , BSSID actually represents the MAC address of the AP; Address2 can be set to the MAC address of the STA (represented by SA), Address3 represents the destination address sent by the MAC frame (represented by DA), if the destination address sent by the MAC frame is the AP side, then Address3 can be equal to Address1;

When the MAC frame is sent from the AP side of the wireless router to the STA side of the wireless station (that is, From AP), since the MAC frame comes from the DS, the To DS is 0, the From DS is 1, and the Address1 can be set to the MAC address of the STA. That is, the destination address sent by the MAC frame (represented by DA); Address2 can be set to the BSSID corresponding to the AP side, and Address3 represents the source address sent by the MAC frame. If the source address sent by the MAC frame is the AP side, then Address3 can be equal to Address2.

Referring to FIG. 3, it shows a schematic structural diagram of a bridge mode network topology provided by an embodiment of the present application; as shown in FIG. 3, the topology structure includes a wireless router access point (represented by Root AP), a bridge mode terminal equipment (represented by STA0) and surrounding wireless access sites (represented by STA1 and STA2); wherein, STA0 includes Client interface and AP interface, and Client interface and AP interface are located in the same bridge (bridge); STA0, Both STA1 and STA2 can access the network through the Root AP, but STA0 also needs to forward data packets when STA1 accesses the network.

Based on the network topology shown in Figure 3, in the Root AP, the Gateway (Gateway) is assumed to be 192.168.0.1, the DHCP Server is assumed to be 192.168.0.100/200, and the RootAP-BSSID is assumed to be xx:xx:xx:xx:xx: x0; In STA0, for the Client interface side, the MAC address corresponding to the Client interface is represented by Client-MAC, the Client-MAC is assumed to be xx:xx:xx:xx:xx:x4, and the IP address corresponding to the Client interface is Client-IP Indicates that the Client-IP is assumed to be 192.168.0.100; for the AP interface side, the AP-BSSID is assumed to be xx:xx:xx:xx:xx:x3; in STA1, the MAC address corresponding to STA1 is denoted by STA1-MAC, and STA1- The MAC is assumed to be xx:xx:xx:xx:xx:x1, the IP address corresponding to STA1 is represented by STA1-IP, and STA1-IP is assumed to be 192.168.43.100. As can be seen from FIG. 3 , STA0 in the embodiment of the present application has a bridge mode, and the Client interface and AP interface in STA0 are located in the same bridge. At this time, DHCP Server and Soft AP gateway settings in STA0 are no longer required. Thus, possible gateway conflicts are avoided.

In some embodiments, before the receiving the data message, the method further includes:

establishing a network connection between the terminal device and the wireless router on the network side;

Based on the bridge mode of the terminal device, the first wireless station and the second wireless station are controlled to perform WLAN sharing through the terminal device.

Further, in some embodiments, the receiving the data message includes:

Based on the WLAN sharing, determine whether the data packet conforms to the media access control MAC frame format of the WLAN protocol;

When the data packet conforms to the MAC frame format of the WLAN protocol, receiving the data packet;

After the receiving the data message, the method further includes:

In the network bridge of the terminal device, the data message in the MAC frame format is converted into the data message in the Ethernet frame format; wherein, the network bridge of the terminal device includes a client interface and a wireless access point AP interface, The data packet in the Ethernet format is used for data packet interaction between the client interface and the AP interface.

Further, in some embodiments, the determining the type of the data packet includes:

When forwarding the data message in the MAC frame format to the wireless router on the network side through the client interface, it is obtained that the sending address in the data message is the MAC address of the first wireless station, and the type of the data message is determined is the first type; wherein, the data packet of the first type is sent by the first wireless station and received through the AP interface of the terminal device and then forwarded to the client interface;

When receiving the data message in the MAC frame format forwarded by the wireless router on the network side through the client interface, it is obtained that the sending address in the data message is the MAC address of the wireless router, and the data message of the data message is determined. The type is the second type; wherein, the data packet of the second type is sent by the second wireless station and forwarded to the client interface through the wireless router.

It should be noted that the client interface and AP interface of the terminal device are located in the same bridge. At this time, there is no need to configure the DHCP Server and Soft AP gateway in the terminal device, thus avoiding possible gateway conflicts. The terminal device establishes a network connection with the wireless router, and the first wireless station and the second wireless station can perform data interactive communication through the bridge mode of the terminal device. Among them, the data packets sent by the first wireless station or the data packets forwarded by the wireless router are all data packets in MAC frame format, which are data packet frames transmitted in the air, which can be called Air Packet Frame ; In the bridge, the data message in the MAC frame format will be converted into a data message in the Ethernet frame format, which is a data packet frame transmitted in the bridge, which can also be called Bridge Packet Frame at this time; then the datagram The message will continue to be sent as a data message in the MAC frame format.

It should also be noted that the sending of the data packet includes two situations: one is that the data packet is sent by the wireless station STA side to the wireless router AP (ie To AP) on the network side through the client interface, and the other is the data packet. The message is sent by the wireless router AP on the network side to the wireless station STA side (ie, From AP) through the client interface. In this way, for different situations, the sending addresses of the data packets are also different; for example, in the data packets forwarded by the first wireless station to the wireless router through the client interface, the sending address of the data packets is the MAC address of the first wireless station. Address, the type of the data packet is called the first type; for example, if the data packet is received from the wireless router through the client interface, the sending address of the data packet is the MAC address of the wireless router, and the type of the data packet called the second type.

Exemplarily, taking the network topology shown in FIG. 3 as an example, according to the stipulations of the IEEE 802.11 protocol, to obtain the data message in the MAC frame format, Data[To DS, From DS, Address1, Address2, Address3, SourceIP, Dest IP] is represented, and the data message in the Ethernet frame format obtained in the Bridge can be represented by Data[DestAddress, Source Address, Source IP, Dest IP]. During the exchange of data packets, it is assumed that the first wireless station is STA1 and the second wireless station is STA2, and STA1 sends the data packet to STA2. At this time, the type of the data packet is the first type, and STA0 passes through the AP. The interface will receive the data packet in the MAC frame format sent by STA1, which is represented by Data[1,0,AP-BSSID,STA1-MAC,STA2-MAC,STA1-IP,STA2-IP], and then the Client interface will The data packet in the MAC frame format is forwarded to the Root AP side; the client interface driver in the bridge will also convert the received data packet in the MAC frame format into a data packet in the Ethernet frame format, using Data[ STA2-MAC, STA1-MAC, STA1-IP, STA2-IP]; for the same reason, assuming that the first wireless station is STA1 and the second wireless station is STA2, STA2 sends a data packet to STA1, at this time the data The type of the packet is the second type. STA0 will receive the data packet in the MAC frame format sent by STA2 through the client interface. The data packet is forwarded by STA2 through the Root AP. Data[0,1,Client- MAC, Root AP-MAC, STA2-MAC, STA2-IP, STA1-IP] means; among them, the driver on the client interface side in the bridge will also convert the received data packets in the MAC frame format into the Ethernet protocol format. Data packet, represented by Data[Client-MAC, STA2-MAC, STA2-IP, STA1-IP].

Understandably, for the first type of data packet, if the source address (such as STA1-MAC shown in Figure 3) is used as the sending address Address2, the Root AP side will not be able to recognize and discard the data packet in the MAC frame format. In this case, Address2 must be converted to Client-MAC forcibly to ensure that the Root AP side can receive the data packet normally. Similarly, for the second type of data packet, in the bridge, the data packet in MAC frame format It will be converted into data packets in Ethernet frame format. If the destination address Dest Address adopts the receiving address (such as Client-MAC shown in Figure 3), the bridge will not be able to normally forward the data packets in Ethernet frame format to On the AP interface, the Dest Address must be forcibly converted to STA1-MAC, that is, the receiving address Address1 in the data packet in the MAC frame format must be converted to STA1-MAC, so as to ensure that STA1 can receive the data packet normally. That is to say, in order to ensure the normal interaction of data packets, it is necessary to add an ATE mechanism to the client interface side driver of the terminal device to perform address translation and update and maintenance of the address translation table, thereby solving the CPU resources brought by the existing solution. Consumption and gateway conflict issues.

In some embodiments, after the determining the type of the data packet, the method further includes:

Obtain the stored address translation table through the address translation engine ATE in the client interface; wherein, the address translation table is used to perform address translation processing on the sending address and/or the receiving address in the data message.

Further, in some embodiments, when the type of the data packet is the first type, performing address translation on the sending address in the data packet includes:

In the process of sending the data packet from the first wireless station to the second wireless station, according to the acquired address translation table, the sending address in the data packet is converted from the MAC address of the first wireless station to the address translation table. Specify the MAC address of the client interface to obtain a new data packet.

Further, in some embodiments, when the type of the data packet is the second type, performing address translation on the receiving address in the data packet includes:

In the process of sending the data packet from the second wireless station to the first wireless station, according to the obtained address translation table, the receiving address in the data packet is converted from the MAC address of the client interface to the address conversion table. The MAC address of the first wireless station is described to obtain a new data packet.

It should be noted that the ATE mechanism is added to the driver of the client interface side of the terminal device; in this way, when the type of the data packet is the first type, that is, the data packet in the MAC frame format forwarded to the wireless router side through the client interface , you can perform address translation on the sending address Address2 in the data message through the address conversion table obtained from the ATE, convert it to Client-MAC, and obtain a new data message; when the type of the data message is the second type When the data message in the MAC frame format forwarded by the wireless router is received through the Client interface, the address translation table obtained from the ATE can perform address translation on the receiving address Address1 in the data message, and convert the It is converted into the MAC address of the real STA (for example, the MAC address of the first wireless station), and then the obtained new data packet is forwarded to the first wireless station through the AP interface.

Exemplarily, still taking the network topology shown in FIG. 3 as an example, it is assumed that STA1 sends a data packet to STA2, then the type of the data packet is the first type, and STA0 will receive the data packet sent by STA1 through the AP interface. The data packet in MAC frame format is represented by Data[1,0,AP-BSSID,STA1-MAC,STA2-MAC,STA1-IP,STA2-IP]; in bridge, the data packet will be converted to Ethernet The network frame format is represented by Data[STA2-MAC, STA1-MAC, STA1-IP, STA2-IP]; then the client interface sends the data packet to the Root AP side according to the MAC frame format. Address2 uses the source address (such as STA1-MAC in Figure 3), then the data packet in the MAC frame format obtained by the Root AP side is Data[1,0,Root AP-BSSID,STA1-MAC,STA2-MAC,STA1 -IP,STA2-IP], since the sending address Address2 is STA1-MAC, the Root AP will not recognize the data packets in the MAC frame format and discard them directly. At this time, the sending address Address2 needs to be forcibly converted through the address translation table. is Client-MAC, that is, the data packet in the MAC frame format obtained by the Root AP side is Data[1,0,Root AP-BSSID,Client-MAC,STA2-MAC,STA1-IP,STA2-IP], so that This ensures that the Root AP can receive the data packet normally. Similarly, assuming that STA2 sends a data packet to STA1, the type of the data packet is the second type, and STA0 will receive the data packet in the MAC frame format forwarded by the RootAP side through the Client interface, and use Data[0, 1, Client-MAC, Root AP-BSSID, STA2-MAC, STA2-IP, STA1-IP] means; in bridge, the data packet will be converted into Ethernet frame format, use Data[Client-MAC, STA2 -MAC,STA2-IP,STA1-IP]; then the client interface sends the data packet to the AP interface side according to the Ethernet frame format, and forwards it to STA1 through the AP interface; among them, in the bridge, if the destination address The Dest Address adopts the receiving address (such as Client-MAC in Figure 3), then the data packet in the Ethernet frame format obtained by the Client interface side will cause the bridge to fail to forward it to the AP interface normally and directly discard it. The receiving address Address1 is forcibly converted to STA1-MAC through the address conversion table, that is, the data packet in the MAC frame format forwarded to the STA1 side through the AP interface is Data[0,1,STA1-MAC,AP-BSSID,STA2-MAC ,STA2-IP,STA1-IP], so as to ensure that the STA1 side can receive the data packet normally.

Referring to FIG. 4, it shows a schematic diagram of the composition structure of another bridge mode network topology provided by an embodiment of the present application; as shown in FIG. 4, an ATE mechanism is added on the basis of FIG. 3; Between the client interfaces in STA0, the address translation table stored in the ATE mechanism can be used to perform address translation on the sending address or the receiving address of the data packet to ensure that the data packet can be sent normally. Among them, the ATE mechanism includes a network address translation table (represented by ATE Table); and the ATE Table can include address translation tables of multiple protocol families, such as the Address Resolution Protocol (Address Resolution Protocol, ARP) address translation table (represented by ARP Table), DHCP protocol address translation table (represented by DHCP Table), and Internet Protocol Version 4 (Internet Protocol Version 4, IPV4) address translation table (represented by IPV4Table), etc., which are not specifically limited in this embodiment of the present application.

In the embodiments of the present application, the following will take the IPV4 address translation table as an example for specific description, but the embodiments of the present application are also applicable to address translation tables of other protocol families. Referring to FIG. 5, it shows a schematic diagram of the composition structure of an address translation table provided by an embodiment of the present application; as shown in FIG. 5, taking the IPV4 address translation table as an example, the IPV4 address translation table includes a protocol (protocol) and an entry (Entry); where Entry can contain multiple entries (such as entry1, entry2,...), and each Entry record can be represented by [entryindex MAC IP], where entryindex is represented as the index value of entry ; For example, as shown in Figure 5, when entryindex is entry1, then entry1 records xx:xx:xx:xx:xx:x4 and 192.168.0.104, which can be expressed as [entry1xx:xx:xx:xx:xx:x4192. 168.0.104]; when entryindex is entry2, then entry2 records xx:xx:xx:xx:xx:x1 and 192.168.0.101, which can be expressed as [entry2xx:xx:xx:xx:xx:x1 192.168.0.101] .

Further, in some embodiments, when the type of the data packet is the first type, the method further includes:

In the network bridge of the terminal device, convert the data message in the MAC frame format into a data message in the Ethernet frame format, and send the data message in the Ethernet frame format to the client interface;

Obtain the MAC address and the Internet Protocol IP address corresponding to the source address in the data message;

According to the acquired MAC address and the IP address, the stored address translation table is updated through the ATE in the client interface.

Further, in some embodiments, when the type of the data packet is the second type, according to the acquired address translation table, the receiving address in the data packet is converted from the MAC address of the client interface. The address is converted into the MAC address of the first wireless station, including:

Receive data messages in MAC frame format through the client interface;

According to the IP address corresponding to the destination address in the data message, query the MAC address corresponding to the IP address from the address translation table;

The queried MAC address is used as the receiving address in the data message; wherein, the queried MAC address is the MAC address of the first wireless station.

It should be noted that, in conjunction with the IPV4 address conversion table shown in Figure 5, when the type of the data packet is the first type, the data packet in the MAC frame format is forwarded to the wireless router side through the client interface, taking Figure 4 as an example. , the first wireless station is STA1, and the second wireless station is STA2. It is assumed that STA1 sends a data packet to STA2. At this time, in the bridge of the terminal device, the data packet in the MAC frame format is first converted into the Ethernet frame format (such as Data[STA2-MAC, STA1-MAC, STA1-IP, STA2-IP] shown in Figure 4), and then send the data packet in the Ethernet frame format to the client interface; The interface side starts the update of the address forwarding table through the ATE. For example, for the Source Address and Source IP in the data packet in the Ethernet frame format, update them to [entryindex STA1-MAC STA1-IP]; first determine the entryindex corresponding to the source address, Assuming that the entryindex is entry2 shown in Figure 5, then the entry corresponding to the source address can be obtained from Figure 5 as [entry2xx:xx:xx:xx:xx:x1 192.168.0.101], and the MAC corresponding to the source address can be obtained The address and IP address are xx:xx:xx:xx:xx:x1 and 192.168.0.101 respectively, so as to update the address translation table, so as to realize the maintenance of the address translation table, and it is also applicable to other protocol families. The update and maintenance of the address translation table; in this way, when the data message in the MAC frame format is rebuilt by the client interface forwarding to the wireless router side, the sending address Address2 in the data message in the MAC frame format is converted to the Client. -MAC, and the data message in the MAC frame format that is finally forwarded to the wireless router side is represented by Data[1,0,RootAP-BSSID,Client-MAC,STA2-MAC,STA1-IP,STA2-IP].

It should also be noted that, in conjunction with the IPV4 address conversion table shown in Figure 5, when the type of the data message is the second type, that is, the data message in the MAC frame format from the wireless router side is received through the client interface. 4 For example, the first wireless station is STA1, and the second wireless station is STA2. It is assumed that STA2 sends a data packet to STA1. At this time, in the bridge of the terminal device, the data in the MAC frame format received by the client interface is first sent. The message (such as Data[0,1,Client-MAC,RootAP-MAC,STA2-MAC,STA2-IP,STA1-IP] shown in Figure 4) is converted into a data message in the Ethernet frame format, and then the The data packet in the Ethernet frame format is sent to the AP interface; on the client interface side, the address forwarding table is activated through ATE. For example, address translation is performed for the Dest Address in the data packet in the Ethernet frame format. First, the Dest IP can be used to convert the address from the address. The corresponding MAC address is queried in the table. For example, if the corresponding entry is found in the address translation table as [entryindex STA1-MAC STA1-IP], it can be confirmed that the queried MAC address is STA1-MAC; in this way, when When the data packet in the MAC frame format is rebuilt by forwarding it from the AP interface to the STA1 side, the receiving address Address1 in the data packet in the MAC frame format needs to be converted into STA1-MAC. The data message in the MAC frame format is represented by Data[0,1,STA1-MAC,AP-BSSID,STA2-MAC,STA2-IP,STA1-IP], thus ensuring the data message between STA1 and STA2 Send normally.

The foregoing embodiment provides an address translation method, which is applied to a terminal device, and receives a data packet after enabling a bridge mode of the terminal device; wherein the bridge mode is used to implement WLAN sharing of the terminal device; according to For the received data message, determine the type of the data message; wherein, the type of the data message includes the first type corresponding to the data message forwarded to the network side through the client interface of the terminal device and the first type corresponding to the data message forwarded through the client interface of the terminal device. The client interface receives the second type corresponding to the data packet forwarded from the network side; when the type of the data packet is the first type, address translation is performed on the sending address in the data packet; When the type of the data message is the second type, perform address translation on the receiving address in the data message; after generating a new data message according to the address translation, send the new data message; In this way, because the terminal device adopts the bridge mode to realize WLAN sharing, and also adds the ATE mechanism to the client interface of the terminal device to realize the address translation of data packets and the update and maintenance of the address translation table, thus effectively solving the problem of existing solutions. The resulting CPU resource consumption and gateway conflict problems better realize WLAN sharing.

Based on the same inventive concept of the foregoing embodiments, referring to FIG. 6 , it shows an example of the composition structure of an address translation apparatus 60 provided by an embodiment of the present application. The address translation apparatus 60 is applied to a terminal device, and the client interface of the terminal device is The address translation device 60 may include: a receiving unit 601, a determining unit 602, a converting unit 603, and a sending unit 604, wherein the receiving unit 601 is configured to turn on the terminal device After the bridging mode, receive a data packet; wherein, the bridging mode is used to realize WLAN sharing of the terminal device;

The determining unit 602 is configured to determine the type of the data packet according to the received data packet; wherein, the type of the data packet includes forwarding the data packet to the network side through the client interface of the terminal device The corresponding first type and the second type corresponding to the data message received from the network side forwarded through the client interface;

The conversion unit 603 is configured to perform address translation on the sending address in the data packet when the type of the data packet is the first type; when the type of the data packet is the second type, performing address translation on the receiving address in the data message;

The sending unit 604 is configured to send the new data message after generating the new data message according to the address translation.

In the above solution, referring to FIG. 6 , the address translation apparatus 60 further includes a establishing unit 605 configured to establish a network connection between the terminal device and the wireless router on the network side; and based on the bridging mode of the terminal device, The first wireless station and the second wireless station are controlled to perform WLAN sharing through the terminal device.

In the above solution, the receiving unit 601 is specifically configured to determine whether the data packet conforms to the media access control MAC frame format of the WLAN protocol based on the WLAN sharing; and when the data packet conforms to the WLAN protocol In the MAC frame format, receive the data message;

The conversion unit 603 is further configured to convert the data message in the MAC frame format into the data message in the Ethernet frame format in the network bridge of the terminal device; wherein, the network bridge of the terminal device includes the client The interface is an AP interface of a wireless access point, and the data packet in the Ethernet format is used for data packet interaction between the client interface and the AP interface.

In the above solution, the determining unit 602 is specifically configured to obtain that the sending address in the data packet is the first wireless router when forwarding the data packet in the MAC frame format to the wireless router on the network side through the client interface. The MAC address of the station determines that the type of the data packet is the first type; wherein, the data packet of the first type is sent by the first wireless station and received through the AP interface of the terminal device and then forwarded to The client interface; and when receiving the data message in the MAC frame format forwarded by the wireless router on the network side through the client interface, obtain that the sending address in the data message is the MAC address of the wireless router, and determine The type of the data packet is the second type; wherein, the data packet of the second type is sent by the second wireless station and forwarded to the client interface through the wireless router.

In the above solution, referring to FIG. 6 , the address translation apparatus 60 further includes an obtaining unit 606 configured to obtain the stored address translation table through the address translation engine ATE in the client interface; wherein the address translation table It is used to perform address translation processing on the sending address and/or the receiving address in the data message.

In the above solution, when the type of the data packet is the first type, the conversion unit 603 is specifically configured to, during the process of sending the data packet from the first wireless station to the second wireless station, according to The acquired address conversion table converts the sending address in the data packet from the MAC address of the first wireless station to the MAC address of the client interface to obtain a new data packet.

In the above solution, referring to FIG. 6 , the address translation device 60 further includes an update unit 607, wherein,

The sending unit 604 is further configured to convert the data packet in the MAC frame format into the data packet in the Ethernet frame format in the bridge of the terminal device, and convert the data packet in the Ethernet frame format. sent to the client interface;

The obtaining unit 606 is further configured to obtain the MAC address and the Internet Protocol IP address corresponding to the source address in the data packet;

The updating unit 607 is configured to update the stored address translation table through the ATE in the client interface according to the acquired MAC address and the IP address.

In the above solution, when the type of the data packet is the second type, the conversion unit 603 is specifically configured to, in the process of sending the data packet from the second wireless station to the first wireless station, according to The acquired address conversion table converts the receiving address in the data packet from the MAC address of the client interface to the MAC address of the first wireless station to obtain a new data packet.

In the above solution, referring to FIG. 6 , the address translation device 60 further includes a query unit 608, wherein:

The receiving unit 601 is further configured to receive the data message in the MAC frame format through the client interface;

The query unit 608 is configured to query the MAC address corresponding to the IP address from the address translation table according to the IP address corresponding to the destination address in the data packet; use the queried MAC address as the data The receiving address in the message; wherein, the queried MAC address is the MAC address of the first wireless station.

It can be understood that, in this embodiment, a "unit" may be a part of a circuit, a part of a processor, a part of a program or software, etc., of course, it may also be a module, and it may also be non-modular. Moreover, each component in this embodiment may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The above-mentioned integrated units can be implemented in the form of hardware, or can be implemented in the form of software function modules.

If the integrated unit is implemented in the form of a software functional module and is not sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this embodiment is essentially or The part that contributes to the prior art or the whole or part of the technical solution can be embodied in the form of a software product, the computer software product is stored in a storage medium, and includes several instructions for making a computer device (which can be It is a personal computer, a server, or a network device, etc.) or a processor (processor) that executes all or part of the steps of the method described in this embodiment. The aforementioned storage medium includes: U disk, removable hard disk, Read Only Memory (ROM), Random Access Memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes.

Therefore, the present embodiment provides a computer storage medium storing an address translation program which, when executed by at least one processor, implements the steps of the methods described in the foregoing embodiments.

Based on the composition of the above-mentioned address translation device 60 and the computer storage medium, see FIG. 7 , which shows the specific hardware structure of the address translation device 60 provided by the embodiment of the present application, which may include: a network interface 701, a memory 702, and a processor 703; The various components are coupled together by bus system 704 . It will be appreciated that the bus system 704 is used to implement the connection communication between these components. In addition to the data bus, the bus system 704 also includes a power bus, a control bus and a status signal bus. However, for clarity of illustration, the various buses are labeled as bus system 704 in FIG. 7 . Among them, the network interface 701 is used for receiving and sending signals in the process of sending and receiving information with other external network elements;

memory 702 for storing computer programs that can run on processor 703;

The processor 703 is configured to, when running the computer program, execute:

After the bridging mode of the terminal device is enabled, a data packet is received; wherein the bridging mode is used to realize WLAN sharing of the terminal device;

Determine the type of the data packet according to the received data packet; wherein, the type of the data packet includes the first type corresponding to the data packet forwarded to the network side through the client interface of the terminal device and the The client interface receives the second type corresponding to the data message forwarded from the network side;

When the type of the data packet is the first type, perform address translation on the sending address in the data packet; when the type of the data packet is the second type, perform address translation on the sending address in the data packet. Receive address for address translation;

After a new data packet is generated according to the address translation, the new data packet is sent.

It can be understood that the memory 702 in this embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Wherein, the non-volatile memory may be Read-Only Memory (ROM), Programmable Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (Erasable PROM, EPROM), Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. The volatile memory may be random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDRSDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synchlink DRAM, SLDRAM) and Direct memory bus random access memory (DirectRambus RAM, DRRAM). The memory 702 of the systems and methods described herein is intended to include, but not be limited to, these and any other suitable types of memory.

The processor 703 may be an integrated circuit chip with signal processing capability. In the implementation process, each step of the above-mentioned method can be completed by a hardware integrated logic circuit in the processor 703 or an instruction in the form of software. The above-mentioned processor 703 may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other Programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. The methods, steps, and logic block diagrams disclosed in the embodiments of this application can be implemented or executed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the methods disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software module may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art. The storage medium is located in the memory 702, and the processor 703 reads the information in the memory 702, and completes the steps of the above method in combination with its hardware.

It will be appreciated that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof. For hardware implementation, the processing unit may be implemented in one or more Application Specific Integrated Circuits (ASIC), Digital Signal Processing (DSP), Digital Signal Processing Device (DSP Device, DSPD), programmable logic Devices (Programmable Logic Device, PLD), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), general purpose processors, controllers, microcontrollers, microprocessors, other electronic units for performing the functions described in this application or a combination thereof.

For a software implementation, the techniques described herein may be implemented through modules (eg, procedures, functions, etc.) that perform the functions described herein. Software codes may be stored in memory and executed by a processor. The memory can be implemented in the processor or external to the processor.

Optionally, as another embodiment, the processor 703 is further configured to execute the steps of the methods described in the foregoing embodiments when the computer program is executed.

Referring to FIG. 8 , it shows a schematic structural diagram of a terminal device 80 provided by an embodiment of the present application; wherein, the terminal device 80 at least includes any one of the address translation apparatuses 60 involved in the foregoing embodiments.

It should be noted that, herein, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, It also includes other elements not expressly listed or inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element.

The above-mentioned serial numbers of the embodiments of the present application are only for description, and do not represent the advantages or disadvantages of the embodiments.

From the description of the above embodiments, those skilled in the art can clearly understand that the method of the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is better implementation. Based on this understanding, the technical solution of the present application can be embodied in the form of a software product in essence or in a part that contributes to the prior art, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, CD-ROM), including several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in the various embodiments of this application.

The embodiments of the present application have been described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific embodiments, which are merely illustrative rather than restrictive. Under the inspiration of this application, many forms can be made without departing from the scope of protection of the purpose of this application and the claims, which all fall within the protection of this application.

Claims (12)

1. An address translation method, the method is applied to a terminal device, the method comprising: establishing a network connection between the terminal device and the wireless router on the network side; Based on the bridge mode of the terminal device, the first wireless station and the second wireless station are controlled to perform WLAN sharing through the terminal device; wherein the bridge mode is used to realize the wireless local area network WLAN sharing of the terminal device; Based on the WLAN sharing, determine whether the data packet conforms to the media access control MAC frame format of the WLAN protocol; When the data packet conforms to the MAC frame format of the WLAN protocol, receiving the data packet; In the network bridge of the terminal device, the data message in the MAC frame format is converted into the data message in the Ethernet frame format; wherein, the network bridge of the terminal device includes a client interface and a wireless access point AP interface, The data message in the Ethernet frame format is used for data message interaction between the client interface and the AP interface; Determine the type of the data packet according to the received data packet; wherein, the type of the data packet includes the first type corresponding to forwarding the data packet to the network side through the client interface of the terminal device and receiving the second type corresponding to the data message forwarded from the network side through the client interface; Obtain the stored address translation table through the address translation engine ATE in the client interface; wherein, the address translation table is used to perform address translation processing on the sending address and/or the receiving address in the data message; When the type of the data packet is the first type, address translation is performed on the sending address in the data packet, and the data packet in the Ethernet frame format is sent to the client interface, and the data packet with the data packet is obtained. The MAC address and the Internet Protocol IP address corresponding to the source address in the data message, according to the MAC address obtained and the IP address, the stored address conversion table is updated by the ATE in the client interface; When the type of the data message is the second type, perform address translation on the receiving address in the data message; After a new data packet is generated according to the address translation, the new data packet is sent. 2. The method according to claim 1, wherein the determining the type of the data packet comprises: When forwarding the data message in the MAC frame format to the wireless router on the network side through the client interface, it is obtained that the sending address in the data message is the MAC address of the first wireless station, and the type of the data message is determined is the first type; wherein, the data packet of the first type is sent by the first wireless station and received through the AP interface of the terminal device and then forwarded to the client interface; When receiving the data message in the MAC frame format forwarded by the wireless router on the network side through the client interface, it is obtained that the sending address in the data message is the MAC address of the wireless router, and the data message of the data message is determined. The type is the second type; wherein, the data packet of the second type is sent by the second wireless station and forwarded to the client interface through the wireless router. 3. The method according to claim 1, wherein, when the type of the data packet is the first type, performing address translation on the sending address in the data packet, comprising: In the process of sending the data packet from the first wireless station to the second wireless station, according to the acquired address conversion table, the sending address in the data packet is converted from the MAC address of the first wireless station to the address translation table. Specify the MAC address of the client interface to obtain a new data packet. 4. The method according to claim 1, wherein when the type of the data packet is the second type, the performing address translation on the receiving address in the data packet comprises: In the process of sending the data packet from the second wireless station to the first wireless station, according to the obtained address translation table, the receiving address in the data packet is converted from the MAC address of the client interface to the address conversion table. The MAC address of the first wireless station is described to obtain a new data packet. 5. The method according to claim 4, wherein, according to the obtained address conversion table, the receiving address in the data packet is converted from the MAC address of the client interface to the first wireless The MAC address of the site, including: Receive data messages in MAC frame format through the client interface; According to the IP address corresponding to the destination address in the data message, query the MAC address corresponding to the IP address from the address translation table; The queried MAC address is used as the receiving address in the data message; wherein, the queried MAC address is the MAC address of the first wireless station. 6. an address conversion device, the address conversion device is applied to terminal equipment, and the address conversion device comprises: a building unit, a receiving unit, a determination unit, an acquisition unit, a conversion unit, an update unit and a transmission unit, wherein, The establishment unit is configured to establish a network connection between the terminal device and the wireless router on the network side; and based on the bridging mode of the terminal device, control the first wireless station and the second wireless station to perform operations through the terminal device. WLAN sharing; wherein, the bridge mode is used to realize WLAN sharing of the terminal device; The receiving unit is configured to, based on the WLAN sharing, determine whether the data packet conforms to the media access control MAC frame format of the WLAN protocol; and when the data packet conforms to the MAC frame format of the WLAN protocol, receive the data message; The conversion unit is configured to convert the data message in the MAC frame format into the data message in the Ethernet frame format in the network bridge of the terminal device; wherein, the network bridge of the terminal device includes a client interface and a wireless access point AP interface, where the data message in the Ethernet frame format is used for data message interaction between the client interface and the AP interface; The determining unit is configured to determine the type of the data packet according to the received data packet; wherein, the type of the data packet includes the type of the data packet that is forwarded to the network side through the client interface of the terminal device. The corresponding first type and the second type corresponding to the data message forwarded from the network side received through the client interface; The obtaining unit is configured to obtain the stored address translation table through the address translation engine ATE in the client interface; wherein, the address translation table is used for sending addresses and/or receiving addresses in the data message. address conversion processing; The conversion unit is further configured to perform address translation on the sending address in the data message when the type of the data message is the first type; the sending unit, configured to send the data message in the Ethernet frame format to the client interface; The obtaining unit is further configured to obtain the MAC address and the Internet Protocol IP address corresponding to the source address in the data message; The updating unit is configured to update the stored address translation table through the ATE in the client interface according to the obtained MAC address and the IP address; The conversion unit is further configured to perform address translation on the receiving address in the data message when the type of the data message is the second type; The sending unit is further configured to send the new data message after generating the new data message according to the address translation. 7 . The address translation device according to claim 6 , wherein the determining unit is specifically configured to obtain the data message in the MAC frame format when forwarding the data message in the MAC frame format to the wireless router on the network side through the client interface. 8 . The sending address in the data packet is the MAC address of the first wireless station, and it is determined that the type of the data packet is the first type; wherein, the data packet of the first type is sent by the first wireless station and passed through After receiving the AP interface of the terminal device, forward it to the client interface; and when receiving the data message in the MAC frame format forwarded by the wireless router on the network side through the client interface, obtain the data message in the data message. The sending address is the MAC address of the wireless router, and it is determined that the type of the data packet is the second type; wherein, the data packet of the second type is sent by the second wireless station and forwarded to the wireless router through the wireless router. Describe the client interface. 8 . The address translation device according to claim 6 , wherein when the type of the data packet is the first type, the translation unit is specifically configured to convert the data packet by the first wireless station when the data packet is sent by the first wireless station. In the process of sending to the second wireless site, according to the obtained address conversion table, the sending address in the data message is converted from the MAC address of the first wireless site to the MAC address of the client interface to obtain new data. message. 9 . The address translation device according to claim 6 , wherein when the type of the data packet is the second type, the translation unit is specifically configured to convert the data packet by the second wireless station when the data packet is sent by the second wireless station. During the sending process to the first wireless station, according to the obtained address conversion table, the receiving address in the data message is converted from the MAC address of the client interface to the MAC address of the first wireless station, and a new address is obtained. data packets. 10. The address translation device according to claim 9, wherein the address translation device further comprises a query unit, wherein: The receiving unit is further configured to receive the data message in the MAC frame format through the client interface; The query unit is configured to query the MAC address corresponding to the IP address from the address translation table according to the IP address corresponding to the destination address in the data packet; use the queried MAC address as the data packet The receiving address in the text; wherein, the queried MAC address is the MAC address of the first wireless station. 11. An address conversion device, characterized in that the address conversion device comprises: a memory and a processor; wherein, the memory for storing a computer program executable on the processor; The processor is configured to execute the steps of the method according to any one of claims 1 to 5 when running the computer program. 12. A computer storage medium, characterized in that the computer storage medium stores an address translation program, which implements the steps of the method according to any one of claims 1 to 5 when the address translation program is executed by at least one processor .

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