CN104702707B - A kind of data processing method and device - Google Patents

Abstract

The embodiment of the present invention provides a kind of data processing method and device, is related to the communications field, can shorten the time delay for the user equipment access IPv4 Internet resources for supporting the double stacks of IPv4 and IPv6.Including：Receive the Query Information that user equipment is sent；If the Query Information includes the user equipment source address of IPv6 stacks, the user equipment source address of the IPv6 stacks is extracted；The user equipment source address of the IPv6 stacks is judged whether in the range of default user equipment source address, and the default user equipment source address scope is made of the user equipment source address of the mono- stacks of multiple IPv6；If the user equipment source address of the IPv6 stacks is not in the range of the default user equipment source address, the analysis request of the corresponding AAAA records of the target domain name is parsed using IPv6 stacks, the analysis request of the corresponding A records of the target domain name is parsed using IPv4 stacks.The data processing method and device are used to handle data.

Description

A data processing method and device

technical field

The present invention relates to the communication field, in particular to a data processing method and device.

Background technique

During the transition period from IPv4 (Internet Protocol version 4, Internet Protocol version 4) to IPv6 (Internet Protocol version 6, Internet Protocol version 6), both IPv4 and IPv6 networks can be deployed in the MAN, that is, in the network scenario where IPv4 and IPv6 coexist, IPv4 Single-stack, IPv6 single-stack, IPv4 and IPv6 dual-stack and other types of user equipment access IPv4 network, IPv6 network, IPv4 and IPv6 coexistence network and other access methods. Dual-stack (Dual IP Stack) means that the user equipment can use both IPv6 and IPv4 protocol stacks at the same time, and the two protocol stacks of IPv6 and IPv4 can work in parallel. The single stack means that the user equipment only uses the IPv6 protocol stack or only uses IPv4 protocol stack. The protocol is the transmission rule used for file transmission in the network, and the protocol stack is the sum of all layers of protocols in the network.

Specifically, when a user equipment supporting IPv4 single stack accesses IPv4 network resources, the user equipment sends query information to a DNS (Domain Name System, domain name system) device, and the query information includes the source address of the user equipment, the target domain name, and the target domain name. The resolution request of the A (Address, address) record corresponding to the domain name, and the DNS device resolves the resolution request of the A record corresponding to the target domain name to obtain the IPv4 address corresponding to the target domain name and send it to the user device. The A record is used to specify the DNS record of the IPv4 address corresponding to the domain name.

When a user device that supports IPv6 single stack accesses IPv6 network resources, the user device sends query information to the DNS64 device. The query information includes the source address of the user device, the target domain name, and the resolution request for the AAAA record corresponding to the target domain name, and the DNS64 device resolves The resolution request of the AAAA record corresponding to the target domain name obtains the IPv6 address corresponding to the target domain name and sends it to the user equipment, and the AAAA record is used to specify the DNS64 record of the IPv6 address corresponding to the domain name; when the user equipment supporting IPv6 single stack accesses IPv4 network resources, the user device sends query information to the DNS64 device, the query information includes the resolution request for the AAAA record corresponding to the target domain name, and the DNS64 device sends the query information to the DNS device, if the DNS device is not set to correspond to the target domain name AAAA records, return an empty message to the DNS64 device, the DNS64 device generates a resolution request for the A record corresponding to the target domain name, sends a resolution request for the A record corresponding to the target domain name to the DNS device, and the DNS device resolves the target domain name The resolution request of the corresponding A record obtains the IPv4 address corresponding to the target domain name, and sends the IPv4 address to the DNS64 device, and the DNS64 device generates a virtual IPv6 address and sends it to the user equipment.

When a user equipment that supports IPv4 and IPv6 dual stacks accesses network resources where IPv4 and IPv6 coexist, it can only use DNS resolution, that is, ordinary IPv4 and IPv6 dual stack resolution. When an IPv4 and IPv6 dual-stack user equipment accesses IPv4 network resources, the IPv4 stack can be used to access IPv4 network resources, that is, the user equipment sends query information to the DNS device, and the query information includes the resolution request for the A record corresponding to the target domain name , the DNS device resolves the resolution request of the A record corresponding to the target domain name to obtain the IPv4 address corresponding to the target domain name and sends it to the user equipment, and the IPv4 and IPv6 dual-stack user equipment accesses IPv4 network resources through the IPv4 stack according to the resolved IPv4 address . When an IPv4 and IPv6 dual-stack user equipment accesses IPv6 network resources, the IPv6 stack can be used to access IPv6 network resources, that is, the user equipment sends query information to the DNS device, and the query information includes a resolution request for the AAAA record corresponding to the target domain name , the DNS device resolves the resolution request of the AAAA record corresponding to the target domain name to obtain the IPv6 address corresponding to the target domain name and sends it to the user equipment, and the IPv4 and IPv6 dual-stack user equipment accesses IPv6 network resources through the IPv6 stack according to the resolved IPv6 address .

In the prior art, an IPv4 and IPv6 coexistence network is deployed in a metropolitan area network, and NAT64 (Network Address Translation64, Network Address Translation 64) equipment and DNS64 equipment are deployed in order to take into account IPv6 single-stack user equipment. DNS64 equipment is mainly used in IPv6 single-stack user equipment accesses IPv4 network resources or IPv6 network resources, and NAT64 equipment is used to convert IPv4 addresses to IPv6 addresses or convert IPv6 addresses to IPv4 addresses. However, when a user equipment supporting IPv4 and IPv6 dual-stack accesses IPv4 network resources, the user equipment of IPv4 and IPv6 dual-stack sends query information to the DNS device, and the query information includes the resolution request of the A record corresponding to the target domain name and the target The resolution request of the AAAA record corresponding to the domain name, and the resolution request of the AAAA record corresponding to the target domain name and the resolution request of the A record corresponding to the target domain name are intercepted by the DNS64 device deployed in the MAN, and the DNS64 device does not have the target The AAAA record corresponding to the domain name, the resolution request of the A record corresponding to the target domain name is sent to the DNS device, and the DNS device resolves the resolution request of the A record corresponding to the target domain name to obtain the IPv4 address corresponding to the target domain name, and the corresponding The IPv4 address is returned to the DNS64 device, and the DNS64 device generates a virtual IPv6 address corresponding to the IPv4 address of the target domain name plus a name prefix, returns the virtual IPv6 address to the user equipment, and the user equipment uses the virtual IPv6 address to access IPv4 network resources, that is, the user equipment sends a connection request to the IPv4 server in the IPv4 network according to the virtual IPv6 address. The IPv6 address is sent to the NAT64 device, and the NAT64 device converts the virtual IPv6 address into an IPv4 address, and then accesses IPv4 network resources according to the IPv4 address. Therefore, when IPv4 and IPv6 dual-stack user equipment accesses IPv4 network resources, it undergoes protocol conversion between IPv6 and IPv4, that is, IPv4 and IPv6 dual-stack user equipment accesses IPv4 network resources. The delay of user equipment accessing IPv4 network resources reduces the experience of user equipment supporting IPv4 and IPv6 dual stack accessing IPv4 network resources.

Contents of the invention

Embodiments of the present invention provide a data processing method and device, which can shorten the time delay for user equipment supporting IPv4 and IPv6 dual stacks to access IPv4 network resources.

In order to achieve the above object, embodiments of the present invention adopt the following technical solutions:

In the first aspect, a data processing method is provided, which is applied to Domain Name System (DNS) equipment, including:

Receive the query information sent by the user equipment, the query information includes the source address of the user equipment, the target domain name, and the query information also includes the resolution request of the A record corresponding to the target domain name and the resolution request of the AAAA record corresponding to the target domain name at least one of;

If the query information includes the user equipment source address of the IPv6 stack, extracting the user equipment source address of the IPv6 stack;

Judging whether the user equipment source address of the IPv6 stack is within a preset user equipment source address range, and the preset user equipment source address range is composed of multiple IPv6 single-stack user equipment source addresses;

If the user equipment source address of the IPv6 stack is not within the preset user equipment source address range, the IPv6 stack is used to resolve the resolution request of the AAAA record corresponding to the target domain name, and the IPv4 stack is used to resolve the AA corresponding to the target domain name Logged parse requests.

In the second aspect, a Domain Name System (DNS) device is provided, including:

The receiving unit is configured to receive query information sent by the user equipment, the query information includes the source address of the user equipment, the target domain name, and the query information also includes the resolution request of the A record corresponding to the target domain name and the A record corresponding to the target domain name. At least one of the resolution requests recorded by the AAAA;

An extracting unit, configured to extract the source address of the user equipment of the IPv6 stack when the query information includes the source address of the user equipment of the IPv6 stack;

The first judging unit is used to judge whether the user equipment source address of the IPv6 stack is within the preset user equipment source address range, and the preset user equipment source address range consists of multiple IPv6 single-stack user equipment source addresses composition;

The first parsing unit is configured to use the IPv6 stack to resolve the resolution request of the AAAA record corresponding to the target domain name when the user equipment source address of the IPv6 stack is not within the preset user equipment source address range, and use the IPv4 stack Analyzing the resolution request of the A record corresponding to the target domain name.

Embodiments of the present invention provide a data processing method and device. The data processing method includes: receiving query information sent by user equipment, where the query information includes the source address of the user equipment and the target domain name, and the query information also includes the At least one of the resolution request of the A record corresponding to the target domain name and the resolution request of the AAAA record corresponding to the target domain name; if the query information includes the user equipment source address of the IPv6 stack, extract the user equipment source address of the IPv6 stack address; determine whether the user equipment source address of the IPv6 stack is within the preset user equipment source address range, and the preset user equipment source address range is composed of multiple IPv6 single-stack user equipment source addresses; if the The user equipment source address of the IPv6 stack is not within the preset user equipment source address range, using the IPv6 stack to resolve the resolution request for the AAAA record corresponding to the target domain name, and using the IPv4 stack to resolve the resolution of the A record corresponding to the target domain name ask. In this way, the query information sent by the user equipment is received, if the query information includes the source address of the user equipment of the IPv6 stack, the source address of the user equipment of the IPv6 stack is extracted, and then it is judged whether the source address of the user equipment of the IPv6 stack is within the preset Within the range of the source address of the user equipment, if the source address of the user equipment of the IPv6 stack is not within the range of the preset source address of the user equipment, use the IPv6 stack to resolve the resolution request for the AAAA record corresponding to the target domain name, and use the IPv4 stack to resolve The resolution request of the A record corresponding to the target domain name, compared with the prior art, avoids the circumvention problem that occurs when the IPv4 and IPv6 dual-stack user equipment accesses IPv4 network resources, and effectively shortens the time for users supporting IPv4 and IPv6 dual-stack. Delay for a device to access IPv4 network resources.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 provides a flow chart of a data processing method according to an embodiment of the present invention;

FIG. 2 is a flow chart of another data processing method provided by an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a Domain Name System (DNS) device provided by an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of another Domain Name System (DNS) device provided by an embodiment of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

An embodiment of the present invention provides a data processing method, which is applied to a Domain Name System (DNS) device, as shown in FIG. 1 , including:

Step 101: Receive the query information sent by the user equipment, the query information includes the source address of the user equipment, the target domain name, and the query information also includes the resolution request of the A record corresponding to the target domain name and the AAAA record corresponding to the target domain name At least one of the parse requests for .

Step 102, if the query information includes the source address of the user equipment of the IPv6 stack, extract the source address of the user equipment of the IPv6 stack.

First, determine whether the query information includes the source address of the user equipment of the IPv6 stack, if the query information does not include the source address of the user equipment of the IPv6 stack, use the IPv4 stack to resolve the resolution request of the A record corresponding to the target domain name, if the query If the information includes the source address of the user equipment of the IPv6 stack, the source address of the user equipment of the IPv6 stack is extracted.

Step 103. Determine whether the user equipment source address of the IPv6 stack is within a preset user equipment source address range, and the preset user equipment source address range is composed of multiple IPv6 single-stack user equipment source addresses.

First, the user equipment source address range is set, the preset user equipment source address range is composed of a plurality of IPv6 single-stack user equipment source addresses, and the user equipment source addresses of the Pv6 single-stack forming the preset user equipment source address range Any one of the IPv4 address plus the first prefix IPv6 single-stack user equipment source address, the IPv4 address plus the second prefix IPv6 single-stack user equipment source address and the IPv6 single-stack user equipment source address segment.

Step 104, if the user equipment source address of the IPv6 stack is not within the preset user equipment source address range, use the IPv6 stack to resolve the resolution request for the AAAA record corresponding to the target domain name, and use the IPv4 stack to resolve the target domain name The parsing request for the corresponding A record.

If the user equipment source address of the IPv6 stack is within the preset user equipment source address range, DNS64 is used to resolve the resolution request of the AAAA record corresponding to the target domain name. If the user equipment source address of the IPv6 stack is not within the preset user equipment source address range, the IPv6 stack is used to resolve the resolution request of the AAAA record corresponding to the target domain name, and the IPv4 stack is used to resolve the AAAA record corresponding to the target domain name The parsing request for the A record.

In this way, the query information sent by the user equipment is received, if the query information includes the source address of the user equipment of the IPv6 stack, the source address of the user equipment of the IPv6 stack is extracted, and then it is judged whether the source address of the user equipment of the IPv6 stack is within the preset Within the range of the source address of the user equipment, if the source address of the user equipment of the IPv6 stack is not within the range of the preset source address of the user equipment, use the IPv6 stack to resolve the resolution request for the AAAA record corresponding to the target domain name, and use the IPv4 stack to resolve The resolution request of the A record corresponding to the target domain name, compared with the prior art, avoids the circumvention problem that occurs when the IPv4 and IPv6 dual-stack user equipment accesses IPv4 network resources, and effectively shortens the time for users supporting IPv4 and IPv6 dual-stack. Delay for a device to access IPv4 network resources.

The embodiment of the present invention provides a data processing method, which is applied to a domain name system DNS device, and the DNS device has a domain name system 64DNS64 resolution function, an IPv6 stack resolution function, and an IPv4 stack resolution function, as shown in FIG. 2 , including:

Step 201, setting the source address range of the user equipment.

The user equipment source address range is set on the DNS device. The preset user equipment source address range is composed of multiple IPv6 single-stack user equipment source addresses. Specifically, the IPv6 single stack that forms the preset user equipment source address range The source address of the user equipment is the user equipment source address of the IPv4 address plus the first prefix of the IPv6 single stack, the source address of the user equipment of the IPv6 single stack of the IPv4 address plus the second prefix and any of the user equipment source addresses of the IPv6 single stack A sort of. The first prefix may be a well-known prefix, and the second prefix may be a custom prefix known to the DNS device, that is, a private network address prefix. In practical applications, the well-known prefix may be 64:FF9B::, the A custom prefix known to the DNS device can be 65:FF9B::.

For example, assuming that the IPv4 address is 10.10.10.10, the source address of the user equipment of the IPv6 single stack with the IPv4 address plus the name prefix may be 64: FF9B::10.10.10.10. The source address of the IPv6 single-stack user equipment of the IPv4 address plus the self-defined prefix known to the DNS device may be 65: FF9B::10.10.10.10. Assuming that the IPv4 address segment may be 10.10.0.1 to 10.10.255.255, the user equipment source address segment of the IPv6 single stack may be 64:FF9B::10.10.0.1 to 64:FF9B::10.10.255.255.

Step 202, receiving query information sent by the user equipment.

The user can input the target domain name through the browser provided by the user equipment, and the user equipment sends query information to the DNS device, and the DNS device receives the query information sent by the user equipment. The query information includes user equipment source address, destination address, and target domain name, and the query information also includes at least one of an A record resolution request corresponding to the target domain name and an AAAA record resolution request corresponding to the target domain name. The destination address is the address of the DNS device where the A record corresponding to the target domain name and the AAAA record corresponding to the target domain name are located, the user device presets the address of the DNS device, and the target domain name is the domain name that the user device needs to access, The resolution request of the A record corresponding to the target domain name is to resolve the A record corresponding to the target domain name after the DNS device receives the query information, that is, to map the target domain name to the IPv4 address corresponding to the target domain name, or to resolve the A record corresponding to the target domain name. The AAAA record corresponding to the target domain name is to map the target domain name to the IPv6 address corresponding to the target domain name.

For example, assuming that the user enters the target domain name www.bdidu.com through the browser provided by the user equipment to visit the Baidu website, if the user equipment is configured with the address of the DNS device, the user equipment will send the DNS device to the DNS device according to the address of the configured DNS device. Send query information, the query information includes the source address of the user equipment, the address of the configured DNS device, the Baidu domain name and the resolution request of the A record corresponding to the Baidu domain name. The DNS device receives the query information sent by the user equipment, and then analyzes the query information. If the DNS device is provided with the mapping relationship of the A record corresponding to the Baidu domain name, according to the preset mapping relationship of the A record corresponding to the Baidu domain name, obtain Baidu's IPv4 address is 202.108.22.5.

It should be noted that the query information of the IPv4 single-stack user equipment includes the resolution request of the A record corresponding to the target domain name, the query information of the IPv6 single-stack user equipment includes the resolution request of the AAAA record corresponding to the target domain name, and the IPv4 and IPv6 dual-stack The query information of the user equipment includes the resolution request of the A record corresponding to the target domain name and the resolution request of the AAAA record corresponding to the target domain name.

Step 203, judging whether the query information includes the source address of the user equipment of the IPv6 stack.

After receiving the query information sent by the user equipment, the DNS device judges whether the source address of the user equipment carried in the query information includes the source address of the user equipment of the IPv6 stack. If the query information does not include the source address of the user equipment of the IPv6 stack, that is, the source address of the user equipment is the source address of the user equipment of the IPv4 stack. Execute step 204. If the query information includes the source address of the user equipment of the IPv6 stack, that is, the source address of the user equipment is the source address of the user equipment of the IPv6 stack. Execute step 205.

Step 204, using the IPv4 stack to resolve the resolution request of the A record corresponding to the target domain name.

The user equipment source address of the IPv4 stack may be the user equipment source address of the IPv4 single stack, or the user equipment source address of the IPv4 stack of the IPv4 and IPv6 dual stack. After the DNS device receives the query information, if the DNS device has an A record corresponding to the target domain name, it uses the IPv4 stack to resolve the resolution request of the A record corresponding to the target domain name, and obtains the mapping relationship of the A record corresponding to the target domain name, that is, the target domain name corresponds to IPv4 address.

In the embodiment of the present invention, it is assumed that the query information includes the source address of the user equipment of the IPv6 stack, and step 205 is executed.

Step 205, extracting the user equipment source address of the IPv6 stack.

If the query information includes the source address of the user equipment of the IPv6 stack, the source address of the user equipment of the IPv6 stack may be the source address of the user equipment of the IPv6 single stack, or the source address of the user equipment of the IPv6 stack of the IPv4 and IPv6 dual stack .

Step 206, judging whether the user equipment source address of the IPv6 stack is within a preset range of user equipment source addresses.

The user equipment source address of the IPv6 stack may be any one within a preset range of user equipment source addresses. If the user equipment source address of the IPv6 stack is not within the preset user equipment source address range, then the user equipment source address is the user equipment source address of the IPv6 stack of the IPv4 and IPv6 dual stack, and step 207 to step 2010. If the user equipment source address of the IPv6 stack is within the preset user equipment source address range, perform steps 2011 to 2012.

In this embodiment of the present invention, it is assumed that the user equipment source address of the IPv6 stack is not within the preset user equipment source address range, that is, the user equipment source address of the IPv6 stack that is not within the preset user equipment source address range is sent The query information does not belong to the scope of DNS64 analysis, but belongs to the scope of IPv4 and IPv6 dual-stack analysis, specifically execute steps 207 to 2010.

Step 207, using the IPv6 stack to resolve the resolution request of the AAAA record corresponding to the target domain name. Execute step 208.

Since the IPv4 and IPv6 dual-stack user equipment is provided with an IPv4 stack and an IPv6 stack, the query information of the IPv4 and IPv6 dual-stack user equipment includes the resolution request of the A record corresponding to the target domain name and the AAAA record corresponding to the target domain name parse request for . After the DNS device receives the query information sent by the IPv4 and IPv6 dual-stack user equipment, if the DNS device is set with the AAAA record corresponding to the target domain name, the IPv6 stack is used to resolve the resolution request of the AAAA record corresponding to the target domain name, Obtain the mapping relationship of the AAAA record corresponding to the target domain name, that is, the IPv6 address corresponding to the target domain name. If the DNS device is not set with the AAAA record corresponding to the target domain name, a resolution failure message is returned to the IPv4 and IPv6 dual-stack user equipment. In the embodiment of the present invention, it is assumed that the DNS device is set with an AAAA record corresponding to the target domain name, and the mapping relationship of the AAAA record corresponding to the target domain name is obtained, that is, the IPv6 address corresponding to the target domain name.

Step 208, sending the IPv6 address corresponding to the target domain name to the user equipment with dual-stack IPv4 and IPv6.

The DNS device sends the IPv6 address corresponding to the target domain name to the IPv4 and IPv6 dual-stack user equipment. The IPv4 and IPv6 dual-stack user equipment receives the IPv6 address corresponding to the target domain name, and accesses the server of the website of the target domain name according to the IPv6 address, so that the browser of the IPv4 and IPv6 dual-stack user equipment displays the content of the website of the target domain name .

Step 209, using the IPv4 stack to resolve the resolution request of the A record corresponding to the target domain name. Execute step 2010.

Since the IPv4 and IPv6 dual-stack user equipment is provided with an IPv4 stack and an IPv6 stack, the query information of the IPv4 and IPv6 dual-stack user equipment includes the resolution request of the A record corresponding to the target domain name and the AAAA record corresponding to the target domain name parse request for . After the DNS device receives the query information sent by the IPv4 and IPv6 dual-stack user equipment, if the DNS device is set with the A record corresponding to the target domain name, the IPv4 stack is used to resolve the resolution request of the A record corresponding to the target domain name, Obtain the mapping relationship of the A record corresponding to the target domain name, that is, the IPv4 address corresponding to the target domain name. If the A record corresponding to the target domain name is not set in the DNS device, a resolution failure message is returned to the IPv4 and IPv6 dual-stack user equipment. In the embodiment of the present invention, it is assumed that the DNS device is set with an A record corresponding to the target domain name, and the mapping relationship of the A record corresponding to the target domain name is obtained, that is, the IPv4 address corresponding to the target domain name.

Step 2010, sending the IPv4 address corresponding to the target domain name to the IPv4 and IPv6 dual-stack user equipment.

The DNS device sends the IPv4 address corresponding to the target domain name to the IPv4 and IPv6 dual-stack user equipment. The IPv4 and IPv6 dual-stack user equipment receives the IPv4 address corresponding to the target domain name, and accesses the server of the website of the target domain name according to the IPv4 address, so that the browser of the IPv4 and IPv6 dual-stack user equipment displays the content of the website of the target domain name .

It should be noted that since the IPv4 and IPv6 dual-stack user equipment is equipped with IPv4 protocol stack and IPv6 protocol stack at the same time, when the user enters the target domain name through the browser of the IPv4 and IPv6 dual-stack user equipment, according to the dual-post and excellent-receive In principle access to network resources, namely the server of the website of the target domain name. Specifically, the IPv4 and IPv6 dual-stack user equipment sends query information to the DNS device, the query information includes the resolution request of the A record corresponding to the target domain name and the resolution request of the AAAA record corresponding to the target domain name, and the IPv4 and IPv6 The IPv6 dual-stack user equipment may preferentially select the resolution request of the AAAA record corresponding to the target domain name. Assuming that the DNS device is set with the A record corresponding to the target domain name and the AAAA record corresponding to the target domain name, the DNS device will The received resolution request for the A record corresponding to the target domain name is resolved using the IPv4 stack to obtain the IPv4 address corresponding to the target domain name, and the DNS device uses IPv6 for the received resolution request for the AAAA record corresponding to the target domain name. Stack analysis, obtain the IPv6 address corresponding to the target domain name, and return the IPv4 address corresponding to the target domain name and the IPv6 address corresponding to the target domain name to the user equipment of IPv4 and IPv6 dual stack, and the user equipment of IPv4 and IPv6 dual stack The IPv4 address corresponding to the target domain name and the IPv6 address corresponding to the target domain name, preferentially select the IPv6 address corresponding to the target domain name to access the server of the website of the target domain name, so that the browser of the IPv4 and IPv6 dual-stack user equipment displays the website of the target domain name Content. If the target domain name input by the user through the browser of the IPv4 and IPv6 dual-stack user equipment is the IPv6 target domain name, for example, www.IPv6baidu.com, then the query information includes the resolution request of the AAAA record corresponding to the target domain name, and sends it to the DNS device Sending query information, the specific parsing process is the same as the parsing process of the parsing request of the AAAA record corresponding to the target domain name sent by the IPv4 and IPv6 dual-stack user equipment, and will not be repeated here.

Step 2011, using DNS64 to resolve the resolution request of the AAAA record corresponding to the target domain name. Execute step 2012.

Since the IPv6 single-stack user equipment is configured with an IPv6 stack, the query information of the IPv6 single-stack user equipment includes a resolution request for the AAAA record corresponding to the target domain name. After the DNS device receives the query information, if the DNS device is set with the AAAA record corresponding to the target domain name, use DNS64 to resolve the resolution request of the AAAA record corresponding to the target domain name, and obtain the mapping relationship of the AAAA record corresponding to the target domain name , which is the IPv6 address corresponding to the target domain name. If the AAAA record corresponding to the target domain name is not set in the DNS device, a resolution failure message is returned to the IPv6 single-stack user equipment.

When an IPv6 single-stack user equipment accesses an IPv4 network resource, the user equipment sends query information to the DNS device, the query information includes a resolution request for the AAAA record corresponding to the target domain name, and the DNS device receives the query information, but does not find the The AAAA record corresponding to the target domain name, if the DNS device is set with the A record corresponding to the target domain name, then resolve the A record corresponding to the target domain name, obtain the IPv4 address according to the mapping relationship of the A record corresponding to the target domain name, according to the The IPv4 address generates a virtual IPv6 address with a name prefix added to the IPv4 address, and sends the virtual IPv6 address to the user equipment.

In particular, the DNS device is provided with a DNS64 resolution function. In practical applications, the DNS64 resolution function may also be provided on another device, and the DNS function and the DNS64 function are separately provided on two devices. Then, when a user equipment supporting IPv6 single stack accesses IPv4 network resources, the user equipment sends query information to the DNS64 device, the query information includes a resolution request for the AAAA record corresponding to the target domain name, and the DNS64 device sends the query information to the DNS device, if the DNS device does not set the AAAA record corresponding to the target domain name, return an empty message to the DNS64 device, and the DNS64 device generates a resolution request for the A record corresponding to the target domain name, and sends the A record corresponding to the target domain name to the DNS device Analyzing the request, the DNS device parses the parsing request of the A record corresponding to the target domain name, obtains the IPv4 address corresponding to the target domain name, and sends the IPv4 address to the DNS64 device, and the DNS64 device generates an IPv4 address according to the IPv4 address Add a virtual IPv6 address with a name prefix and send it to the user equipment.

Step 2012, sending the IPv6 address to the user equipment of the IPv6 single stack.

The IPv6 single-stack user equipment receives the IPv6 address sent by the DNS device, and accesses the IPv6 server corresponding to the target domain name according to the IPv6 address, so that the browser of the IPv6 single-stack user equipment displays the content of the website of the target domain name.

When an IPv6 single-stack user equipment accesses IPv4 network resources, the IPv6 single-stack user equipment receives the virtual IPv6 address sent by the DNS device, and uses the virtual IPv6 address to access IPv4 network resources, that is, the user equipment sends information to the IPv4 network according to the virtual IPv6 address. The IPv4 server sends a connection request, and establishes a TCP (Transmission Control Protocol, Transmission Control Protocol) connection with the IPv4 server in the IPv4 network, and the IPv4 server may be a server of the website of the target domain name. Specifically, the user equipment first sends the virtual IPv6 address to the NAT64 device, and the NAT64 device converts the virtual IPv6 address into an IPv4 address, and then accesses the server of the website of the target domain name according to the IPv4 address, and the server sends an IPv6 single address through the NAT64 device. The user equipment of the stack returns the connection request, so that the browser of the user equipment of the IPv6 single stack displays the content of the website of the target domain name.

The data processing method provided by the embodiment of the present invention is applied to the domain name system DNS device. First, the DNS device sets the user equipment source address range, and then receives the query information sent by the user equipment to determine whether the query information includes the user equipment source address of the IPv6 stack. , if the query information does not include the source address of the user equipment of the IPv6 stack, use the IPv4 stack to resolve the resolution request of the A record corresponding to the target domain name; if the query information includes the source address of the user equipment of the IPv6 stack, extract the source address of the user equipment of the IPv6 stack , then determine whether the user equipment source address of the IPv6 stack is within the preset user equipment source address range, if the user equipment source address of the IPv6 stack is within the preset user equipment source address range, DNS64 is used to resolve the target domain name For the resolution request of the corresponding AAAA record, if the user equipment source address of the IPv6 stack is not within the preset user equipment source address range, the IPv6 stack is used to resolve the resolution request of the AAAA record corresponding to the target domain name, and the IPv4 stack is used to resolve the target A resolution request for the A record corresponding to the domain name. Compared with the prior art, it avoids the circumvention problem when the user equipment with IPv4 and IPv6 dual stacks accesses IPv4 network resources, and effectively shortens the time delay for user equipment supporting IPv4 and IPv6 dual stacks to access IPv4 network resources.

An embodiment of the present invention provides a domain name system DNS device 30, as shown in FIG. 3 , including:

The receiving unit 301 is configured to receive query information sent by the user equipment, the query information includes the source address of the user equipment, the target domain name, and the query information also includes the resolution request of the A record corresponding to the target domain name and the corresponding At least one of the AAAA records resolves the request.

The extracting unit 302 is configured to extract the source address of the user equipment of the IPv6 stack when the query information includes the source address of the user equipment of the IPv6 stack.

The first judging unit 303 is configured to judge whether the user equipment source address of the IPv6 stack is within the preset user equipment source address range, and the preset user equipment source address range is composed of multiple IPv6 single-stack user equipment sources address composition.

The first parsing unit 304 is configured to use the IPv6 stack to resolve the resolution request of the AAAA record corresponding to the target domain name when the user equipment source address of the IPv6 stack is not within the preset user equipment source address range, using IPv4 The stack parses the parsing request of the A record corresponding to the target domain name.

In this way, the DNS device receives the query information sent by the user equipment, if the query information includes the source address of the user equipment of the IPv6 stack, extracts the source address of the user equipment of the IPv6 stack, and then determines whether the source address of the user equipment of the IPv6 stack is in the preset Within the preset user equipment source address range, if the user equipment source address of the IPv6 stack is not within the preset user equipment source address range, the IPv6 stack is used to resolve the resolution request of the AAAA record corresponding to the target domain name, and the IPv4 The stack resolves the resolution request of the A record corresponding to the target domain name. Compared with the existing technology, it avoids the circumvention problem that occurs when the IPv4 and IPv6 dual-stack user equipment accesses IPv4 network resources, and effectively shortens the time for supporting IPv4 and IPv6 dual-stack. The delay for the user equipment to access IPv4 network resources.

As shown in Figure 4, the DNS device 30 also includes:

The setting unit 305 is configured to set the source address range of the user equipment.

The DNS device 30 also includes:

The second parsing unit 306 is configured to use DNS64 to resolve the parsing request of the AAAA record corresponding to the target domain name when the source address of the user equipment of the IPv6 stack is within the range of the preset source address of the user equipment.

The source address of the user equipment source address of the Pv6 single-stack constituting the preset user equipment source address range is the source address of the user equipment of the IPv6 single-stack IPv4 address plus the first prefix, and the user equipment of the IPv6 single-stack of the IPv4 address plus the second prefix Any one of source address and IPv6 single-stack user equipment source address segment.

The DNS device 30 also includes:

The second judging unit 307 is configured to judge whether the query information includes the user equipment source address of the IPv6 stack.

The third parsing unit 308 is configured to use the IPv4 stack to parse the parsing request of the A record corresponding to the target domain name when the query information does not include the source address of the user equipment of the IPv6 stack.

Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working process of the above-described devices and units can refer to the corresponding process in the foregoing method embodiments, and details are not repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, each unit may be physically included separately, 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 in the form of hardware plus software functional units.

Those of ordinary skill in the art can understand that all or part of the steps for realizing the above-mentioned method embodiments can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium. When the program is executed, the It includes the steps of the above method embodiments; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk and other various media that can store program codes.

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Claims (10)

1. A data processing method, characterized in that being applied to domain name system DNS equipment, comprising: Receive the query information sent by the user equipment, the query information includes the source address of the user equipment, the target domain name, and the query information also includes the resolution request of the A record corresponding to the target domain name and the resolution request of the AAAA record corresponding to the target domain name at least one of; If the query information includes the user equipment source address of the IPv6 stack, extracting the user equipment source address of the IPv6 stack; Judging whether the user equipment source address of the IPv6 stack is within a preset user equipment source address range, and the preset user equipment source address range is composed of multiple IPv6 single-stack user equipment source addresses; If the user equipment source address of the IPv6 stack is not within the preset user equipment source address range, the IPv6 stack is used to resolve the resolution request of the AAAA record corresponding to the target domain name, and the IPv4 stack is used to resolve the AA corresponding to the target domain name Logged parse requests. 2. method according to claim 1, is characterized in that, before the user equipment source address of described judgment described IPv6 stack is in preset user equipment source address range, described method also comprises: Set the source address range of the user equipment. 3. The method of claim 2, wherein, After determining whether the user equipment source address of the IPv6 stack is within a preset user equipment source address range, the method further includes: If the user equipment source address of the IPv6 stack is within the preset user equipment source address range, DNS64 is used to resolve the resolution request of the AAAA record corresponding to the target domain name. 4. The method according to any one of claims 1 to 3, wherein the user equipment source address of the Pv6 single stack that forms the preset user equipment source address range is an IPv4 address plus a first prefix Any one of the source address of the user equipment of the IPv6 single stack, the source address of the user equipment of the IPv6 single stack of the IPv4 address plus the second prefix, and the source address segment of the user equipment of the IPv6 single stack. 5. The method of claim 1, wherein, After receiving the query information sent by the user equipment, the method further includes: Judging whether the query information includes the user equipment source address of the IPv6 stack; If the query information does not include the user equipment source address of the IPv6 stack, the IPv4 stack is used to resolve the resolution request of the A record corresponding to the target domain name. 6. A Domain Name System (DNS) device, comprising: The receiving unit is configured to receive query information sent by the user equipment, the query information includes the source address of the user equipment, the target domain name, and the query information also includes the resolution request of the A record corresponding to the target domain name and the A record corresponding to the target domain name. At least one of the resolution requests recorded by the AAAA; An extracting unit, configured to extract the source address of the user equipment of the IPv6 stack when the query information includes the source address of the user equipment of the IPv6 stack; The first judging unit is used to judge whether the user equipment source address of the IPv6 stack is within the preset user equipment source address range, and the preset user equipment source address range consists of multiple IPv6 single-stack user equipment source addresses composition; The first parsing unit is configured to use the IPv6 stack to resolve the resolution request of the AAAA record corresponding to the target domain name when the user equipment source address of the IPv6 stack is not within the preset user equipment source address range, and use the IPv4 stack Analyzing the resolution request of the A record corresponding to the target domain name. 7. The DNS device according to claim 6, characterized in that, The DNS device also includes: A setting unit, configured to set the source address range of the user equipment. 8. The DNS device according to claim 7, characterized in that, The DNS device also includes: The second parsing unit is configured to use DNS64 to resolve the parsing request of the AAAA record corresponding to the target domain name when the source address of the user equipment of the IPv6 stack is within the range of the preset source address of the user equipment. 9. The DNS device according to any one of claims 6 to 8, wherein the source address of the user equipment of the Pv6 single stack forming the preset user equipment source address range is an IPv4 address plus a first prefix Any one of the IPv6 single-stack user equipment source address, the IPv4 address plus the second prefix IPv6 single-stack user equipment source address, and the IPv6 single-stack user equipment source address segment. 10. The DNS device according to claim 6, characterized in that, The DNS device also includes: The second judging unit is used to judge whether the query information includes the user equipment source address of the IPv6 stack; The third parsing unit is configured to use the IPv4 stack to parse the parsing request of the A record corresponding to the target domain name when the query information does not include the source address of the user equipment of the IPv6 stack.