CN109862130A - A kind of access IPv4 exterior chain method, apparatus, equipment and computer media - Google Patents
A kind of access IPv4 exterior chain method, apparatus, equipment and computer media Download PDFInfo
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- CN109862130A CN109862130A CN201910120432.9A CN201910120432A CN109862130A CN 109862130 A CN109862130 A CN 109862130A CN 201910120432 A CN201910120432 A CN 201910120432A CN 109862130 A CN109862130 A CN 109862130A
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Abstract
This application discloses a kind of access IPv4 exterior chain method, apparatus, equipment and computer medias, when applied to IPv6 client, this method comprises: obtaining the URL of Target IP v4 exterior chain, the URL of Target IP v4 exterior chain is made of the URL of NAT64 gateway flow-guiding identification and initial IPv4 exterior chain；The URL of Target IP v4 exterior chain is guided to NAT64 gateway based on NAT64 gateway flow-guiding identification；Receive the data information sent after the URL of the initial IPv4 exterior chain of NAT64 gateway access.Access IPv4 exterior chain method, apparatus, equipment and computer readable storage medium disclosed in the present application, applicability are high.
Description
Technical field
This application involves fields of communication technology, more specifically to a kind of access IPv4 exterior chain method, apparatus, equipment
And computer media.
Background technique
IPv4 is into IPv6 transient process, when IPv6 client browser passes through the Web application proxy of support dual stack
(the hereinafter referred to as this Web application proxy for using dual stack is NAT64 gateway) accesses Web service system (such as IPv4 left
Exterior chain website) when, it is likely encountered an IPv6 skylight problem, skylight problem is described as follows: when the access of IPv6 client is located at
When IPv4 main web site after NAT64 gateway, (used if carrying IPv4 exterior chain URL in the webpage of IPv4 main web site
What IPv4 agreement could be accessed normally is not belonging to the web page resources of main web site, such as picture, audio or the net being located on other websites
Page subframe), when the webpage, which reaches IPv6 client, to be rendered, IPv6 client can directly adopt IPv6 protocol access should
IPv4 exterior chain URL, due to IPv6 client under normal circumstances to the corresponding web page resources of IPv4 exterior chain URL access without going past
NAT64 gateway, therefore, the IPv4 exterior chain URL are IPv6 unreachable for IPv6 client, therefore, IPv4 exterior chain URL institute
Corresponding web page contents can not normally show that there have been so-called IPv6 skylights for this on IPv6 client browser.
In order to solve the problems, such as IPv6 skylight, prior art is: in NAT64 gateway, in NAT64 gateway forwards major network
Stand webpage when, modify main web site webpage in all IPv4 exterior chain URL so that being had to pass through to the access of IPv4 exterior chain URL
NAT64 gateway, so that IPv4 exterior chain URL is still addressable for IPv6 client.NAT64 gateway it is specific
IPV4 exterior chain URL amending method is: for the additional IPv6 subdomain name of DNS in IPV4 exterior chain URL, then taking in authoritative DNS
It is engaged in adding DNS-IPv6 solution new record on device, so that all parsing results for the IPv6 subdomain name all resolve to NAT64 net
The address IPv6 of pass, in this way, IPv6 client is added to IPv6 subdomain name for these when rendering main web site web page contents
The access meeting water conservancy diversion of IPv4 exterior chain URL allows NAT64 gateway to intercept and capture IPv4 exterior chain URL access and asks to NAT64 gateway
It asks, and true IPv4 domain name (abandoning additional IPv6 subdomain name) is cut out by the domain HOST in HTTP request head, then
It carries out IPv4DNS to it to parse to obtain the address IPV4 of exterior chain website, NAT64 gateway proxy IPv6 client is assisted using IPv4
The web page contents of acquisition are transmitted to IPv6 finally by IPv6 connection by web page contents corresponding to view access IPv4 exterior chain URL
Client, to solve the problems, such as IPv6 skylight.
However, needing on Authoritative DNS server in the existing technology for solving the problems, such as IPv6 skylight for virtual IP address v6
Domain name increases AAAA record, and deployment is complicated, and has kidnapped IPv6 subdomain name, will affect the use of the IPv6 subdomain name, so that
The applicability of the prior art is poor.
In conclusion how to provide the IPv6 skylight solution that a kind of deployment is simple, applicability is good is current this field
Technical staff's urgent problem to be solved.
Summary of the invention
The purpose of the application is to provide a kind of access IPv4 exterior chain method, can solve how to provide one to a certain extent
The technical issues of kind of applicability good skylight solution.Present invention also provides chain apparatus outside a kind of access IPv4, equipment and
Computer readable storage medium.
To achieve the goals above, the application provides the following technical solutions:
A kind of access IPv4 exterior chain method is applied to IPv6 client, which comprises
The URL of Target IP v4 exterior chain is obtained, the URL of the Target IP v4 exterior chain is by NAT64 gateway flow-guiding identification and initially
The URL of IPv4 exterior chain is formed；
The URL of the Target IP v4 exterior chain is guided to NAT64 gateway based on the NAT64 gateway flow-guiding identification；
Receive the data information sent after the URL of Target IP v4 exterior chain described in the NAT64 gateway access.
Preferably, the URL of the Target IP v4 exterior chain is generated by the NAT64 gateway, the acquisition Target IP v4 exterior chain
URL, comprising:
Receive the URL for the Target IP v4 exterior chain that the NAT64 gateway is sent.
Preferably, the URL of the Target IP v4 exterior chain is generated by the IPv6 client, the acquisition Target IP v4 exterior chain
URL, comprising:
The webpage that the NAT64 gateway is sent is received, the webpage carries the URL and browsing of the initial IPv4 exterior chain
Device script；
The URL of the initial IPv4 exterior chain carried in the webpage is traversed out based on the browser script；
The URL of the initial IPv4 exterior chain and the NAT64 gateway flow-guiding identification are combined into the Target IP v4 exterior chain
URL.
Preferably, the webpage for receiving the NAT64 gateway and sending, comprising:
Receive the webpage for the caching that the NAT64 gateway is sent；
Wherein, the process that the NAT64 gateway sends the webpage includes:
The caching last time is sent to the URL and browser foot for carrying the initial IPv4 exterior chain of the IPv6 client
This webpage；
Receive the request of the website data information for the request IPv4 main web site that the IPv6 client is sent；
Judge whether the webpage matches with the request, if so, sending the webpage to the IPv6 client.
Preferably, added with preset outer between the NAT64 gateway flow-guiding identification and the URL of the initial IPv4 exterior chain
Chain mark.
Preferably, described to be guided to the URL of the Target IP v4 exterior chain based on the NAT64 gateway flow-guiding identification
NAT64 gateway, comprising:
By ssl protocol, the URL of the Target IP v4 exterior chain is guided to based on the NAT64 gateway flow-guiding identification
NAT64 gateway.
Preferably, described to receive the data letter sent after the URL of initial IPv4 exterior chain described in the NAT64 gateway access
Breath, comprising:
It receives the NAT64 gateway and accesses the data letter sent after the URL of the initial IPv4 exterior chain by ssl protocol
Breath.
Preferably, the NAT64 gateway flow-guiding identification is before the URL of the initial IPv4 exterior chain.
Preferably, the NAT64 gateway flow-guiding identification includes the DNS domain name of the website IPv4.
Preferably, the NAT64 gateway flow-guiding identification includes the IP address of the NAT64 gateway.
A kind of access IPv4 exterior chain method is applied to NAT64 gateway, which comprises
Receive the request of the URL of IPv6 client access target IPv4 exterior chain, the URL of the Target IP v4 exterior chain by
NAT64 gateway flow-guiding identification and the URL of initial IPv4 exterior chain composition；
It accesses to the URL of the initial IPv4 exterior chain, and the result hair of the URL of the initial IPv4 exterior chain will be accessed
Give the IPv6 client.
Preferably, before the request of the URL for receiving IPv6 client access target IPv4 exterior chain, further includes:
The URL of the Target IP v4 exterior chain is generated, and the URL of the Target IP v4 exterior chain is sent to the IPv6 client
End.
Preferably, the URL for generating the Target IP v4 exterior chain, and the URL of the Target IP v4 exterior chain is sent to
The IPv6 client includes:
The URL of the Target IP v4 exterior chain is generated, and the URL of the Target IP v4 exterior chain is encrypted；
The URL of the encrypted Target IP v4 exterior chain is sent to the IPv6 client.
Preferably, the URL for generating the Target IP v4 exterior chain, and the URL of the Target IP v4 exterior chain is sent to
The IPv6 client includes:
Generate the URL of the Target IP v4 exterior chain；
Timestamp is added in the URL of the Target IP v4 exterior chain；
The URL and the timestamp of the initial IPv4 exterior chain are encrypted；
The URL of the encrypted Target IP v4 exterior chain is sent to the IPv6 client.
Preferably, before the request of the URL for receiving IPv6 client access target IPv4 exterior chain, further includes:
The webpage for carrying the URL of browser script and the initial IPv4 exterior chain is sent to the IPv6 client, with
So that the IPv6 client generates the URL of the Target IP v4 exterior chain.
Preferably, the request of the URL for receiving the IPv6 client access target IPv4 exterior chain, comprising:
Receive the request of the URL for the access target IPv4 exterior chain that the IPv6 client is sent by ssl protocol.
Preferably, the URL to the initial IPv4 exterior chain, which accesses, includes:
It is accessed based on URL of the ssl protocol to the initial IPv4 exterior chain.
Preferably, the NAT64 gateway flow-guiding identification is before the URL of the initial IPv4 exterior chain.
Preferably, the NAT64 gateway flow-guiding identification includes the DNS domain name of the website IPv4.
Preferably, the NAT64 gateway flow-guiding identification includes the IP address of the NAT64 gateway.
A kind of outer chain apparatus of access IPv4, is applied to IPv6 client, comprising:
First obtains module, and for obtaining the URL of Target IP v4 exterior chain, the URL of the Target IP v4 exterior chain is by NAT64 net
Close the URL composition of flow-guiding identification and initial IPv4 exterior chain；
First water conservancy diversion module, for based on the NAT64 gateway flow-guiding identification by the URL water conservancy diversion of the Target IP v4 exterior chain
To NAT64 gateway；
First receiving module, for receiving the number sent after the URL of initial IPv4 exterior chain described in the NAT64 gateway access
It is believed that breath.
A kind of access IPv4 exterior chain equipment is applied in IPv6 client, comprising:
Memory, for storing computer program；
Processor realizes the step of as above any access IPv4 exterior chain method when for executing the computer program
Suddenly.
A kind of computer readable storage medium is applied in IPv6 client, deposits in the computer readable storage medium
Computer program is contained, as above any access IPv4 exterior chain method is realized when the computer program is executed by processor
The step of.
A kind of access IPv4 exterior chain method provided by the present application is applied to IPv6 client, obtains Target IP v4 exterior chain
The URL of URL, Target IP v4 exterior chain are made of the URL of NAT64 gateway flow-guiding identification and initial IPv4 exterior chain；Based on NAT64 gateway
The URL of Target IP v4 exterior chain is guided to NAT64 gateway by flow-guiding identification；Receive the URL of the initial IPv4 exterior chain of NAT64 gateway access
The data information sent afterwards.A kind of access IPv4 exterior chain method provided by the present application, only need to by NAT64 gateway flow-guiding identification,
It may make IPv6 client that the URL of Target IP v4 exterior chain is guided to NAT64 gateway, obtained by NAT64 gateway initial
Exterior chain data information in the URL of IPv4 exterior chain, so that IPv6 client is not required to directly access the URL of initial IPv4 exterior chain, from
And exterior chain data information can not be obtained and skylight occur by avoiding when IPv6 client directly accesses the URL of initial IPv4 exterior chain
Situation need to only be can be realized compared with prior art by NAT64 gateway flow-guiding identification, and process is easy, and applicability is high.This Shen
A kind of outer chain apparatus of the access IPv4 that please be provided, equipment and computer readable storage medium also solve the problems, such as relevant art.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of application for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of first pass figure for accessing IPv4 exterior chain method provided by the embodiments of the present application；
Fig. 2 is a kind of second flow chart for accessing IPv4 exterior chain method provided by the embodiments of the present application；
Fig. 3 is a kind of third flow chart for accessing IPv4 exterior chain method provided by the embodiments of the present application；
Fig. 4 is a kind of first structure diagram of outer chain apparatus of access IPv4 provided by the embodiments of the present application；
Fig. 5 is a kind of structural schematic diagram for accessing IPv4 exterior chain equipment provided by the embodiments of the present application；
Fig. 6 is a kind of another structural schematic diagram for accessing IPv4 exterior chain equipment provided by the embodiments of the present application.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.It is based on
Embodiment in the application, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall in the protection scope of this application.
Referring to Fig. 1, Fig. 1 is a kind of first pass figure for accessing IPv4 exterior chain method provided by the embodiments of the present application.
A kind of access IPv4 exterior chain method provided by the embodiments of the present application is applied to IPv6 client, may include following
Step:
Step S101: obtaining the URL of Target IP v4 exterior chain, the URL of Target IP v4 exterior chain by NAT64 gateway flow-guiding identification and
The URL composition of initial IPv4 exterior chain.
In practical application, IPv6 client can first obtain the Target IP v4 exterior chain added with NAT64 gateway flow-guiding identification
URL, Target IP v4 exterior chain refers to the exterior chain being made of the URL of NAT64 gateway flow-guiding identification and initial IPv4 exterior chain, should
NAT64 gateway flow-guiding identification can before the URL of initial IPv4 exterior chain, can also after the URL of initial IPv4 exterior chain,
Positional relationship between NAT64 gateway flow-guiding identification and the URL of Target IP v4 exterior chain is not especially limited.Initial IPv4 exterior chain refers to
Be the IPv4 exterior chain that carries in the IPv4 main web site of IPv6 client access, IPv4 main web site refers to IPv6 client first
The website IPv4 of a access.The effect of NAT64 gateway flow-guiding identification is so that IPv6 client leads the URL of Target IP v4 exterior chain
It flow to NAT64 gateway.
In concrete application scene, NAT64 gateway flow-guiding identification can be the DNS domain name of the website IPv4, for example can be
The DNS domain name of IPv4 main web site, DNS domain name of IPv4 exterior chain website etc..Specifically, the DNS domain name of the website IPv4 can add
Before the URL of initial IPv4 exterior chain, with initial IPv4 exterior chain are as follows:
The entitled www.abc.com of DNS domain of<a href=" http://www.sohu.com/a.html ">, the website IPv4
For, then Target IP v4 exterior chain can be with are as follows:
<a href=" http://www.abc.com/http/www.sohu.com/a.html ">.
In concrete application scene, NAT64 gateway flow-guiding identification can also be the IP address etc. of NAT64 gateway.
In concrete application scene, the URL of Target IP v4 exterior chain can be generated by NAT64 gateway, then NAT64 gateway water conservancy diversion mark
Know be the website IPv4 DNS domain name or NAT64 gateway IP address when, obtain Target IP v4 exterior chain URL the step of can have
Body are as follows: receive the URL for the Target IP v4 exterior chain that NAT64 gateway is sent.NAT64 gateway generates the mistake of the URL of Target IP v4 exterior chain
Journey can be with are as follows: URL the and NAT64 gateway flow-guiding identification for the initial IPv4 exterior chain that NAT64 gateway will acquire is combined into Target IP v4
The URL of exterior chain, and NAT64 gateway flow-guiding identification can be before the URL of initial IPv4 exterior chain.
Specifically, since NAT64 gateway is treated as the springboard that IPv6 client accesses initial IPv4 exterior chain, so that initially
IPv4 exterior chain is easy by outside world, in order to guarantee the safety of initial IPv4 exterior chain, can URL to initial IPv4 exterior chain into
Row encryption receives the Target IP v4 that NAT64 gateway is sent then when NAT64 gateway flow-guiding identification is the DNS domain name of the website IPv4
The process of the URL of exterior chain can be with specifically: receives the URL for the encrypted Target IP v4 exterior chain that NAT64 gateway is sent.NAT64
The process that gateway encrypts the URL of Target IP v4 exterior chain can be with are as follows: encryption key of the NAT64 gateway based on generation, to mesh
The URL for marking the initial IPv4 exterior chain in the URL of IPv4 exterior chain is encrypted, and the URL of encrypted Target IP v4 exterior chain is obtained.Tool
Body, encryption key can be the encryption key that NAT64 gateway generates at random, such as when each NAT64 gateways and starting, NAT64
Gateway just automatically generates encryption key etc..
Specifically, NAT64 gateway can be in Target IP v4 exterior chain in order to further ensure the safety of Target IP v4 exterior chain
URL in add timestamp, the URL for the Target IP v4 exterior chain for being added to timestamp is encrypted later, for example, based on generate
Encryption key, the URL of timestamp and initial IPv4 exterior chain is encrypted, the URL of encrypted Target IP v4 exterior chain is obtained,
Then the URL of encrypted Target IP v4 exterior chain is sent to IPv6 client again by NAT64 gateway.Specifically, timestamp can be with
It adds in the URL of Target IP v4 exterior chain behind the URL of initial IPv4 exterior chain, such as Target IP v4 exterior chain are as follows:
Https: //www.abc.com/https/www.def.com/a.html, then add the Target IP v4 after timestamp
Exterior chain can be with are as follows:
Https: //www.abc.com/https/www.sohu.com/a.html#20181031123506, when to addition
Between stab after Target IP v4 exterior chain be encrypted after result can be with are as follows:
https://www.abc.com/aebeedeb85de9be97fb85b7d7b6e9v7ev。
In concrete application scene, if generating Target IP v4 exterior chain by NAT64 gateway, it will increase the clothes of NAT64 gateway
Business pressure, and the URL of some initial IPv4 exterior chains is possibly comprised in browser script, NAT64 gateway passes through static rule
The mode matched possibly can not find the URL of the initial IPv4 exterior chain in browser script, so that the target that NAT64 gateway generates
The number of IPv4 exterior chain is not thorough, and in order to reduce the service pressure of NAT64 gateway, and guarantees to traverse each target
IPv4 exterior chain, NAT64 gateway can rewrite browser script, and browser script is sent to IPv6 client, so that IPv6
Client traverses all Target IP v4 exterior chains based on browser script, then is the website IPv4 in NAT64 gateway flow-guiding identification
When DNS domain name or the IP address of NAT64 gateway, the URL of Target IP v4 exterior chain can be generated by IPv6 client, then obtain target
The process of the URL of IPv4 exterior chain can be with specifically: receives the webpage that NAT64 gateway is sent, webpage carries initial IPv4 exterior chain
URL and browser script；The URL of the initial IPv4 exterior chain carried in webpage is traversed out based on browser script；It will be initial
URL the and NAT64 gateway flow-guiding identification of IPv4 exterior chain is combined into the URL of Target IP v4 exterior chain.In practical application, browser script
It can be javascript, VBscript etc..
Specifically, there are the feelings for repeatedly accessing initial IPv4 exterior chain in the IPv6 client short time in practical application scene
Condition if IPv6 client reacquires Target IP v4 exterior chain when accessing initial IPv4 exterior chain every time, can make in such cases
The process of obtaining is cumbersome and meaningless, in order to avoid such situation, Target IP v4 exterior chain can be stored using caching technology, then is existed
When NAT64 gateway flow-guiding identification is the DNS domain name of the website IPv4, the process for receiving the webpage that NAT64 gateway is sent can be specific
Are as follows: receive the webpage for the caching that NAT64 gateway is sent；Wherein, it includes: that caching is last that NAT64 gateway, which sends the process of webpage,
It is sent to the URL for carrying initial IPv4 exterior chain of IPv6 client and the webpage of browser script；Receive IPv6 client hair
The request of the website data information of the request IPv4 main web site sent；Judge whether webpage matches with request, if so, sending webpage
To IPv6 client.Namely when the Target IP v4 exterior chain that IPv6 client repeatedly accesses is constant, IPv6 client can be direct
Receive the URL of the Target IP v4 exterior chain of NAT64 gateway caches.In addition, NAT64 gateway can also delay in the case where conditions permit
The exterior chain data information obtained from the URL of initial IPv4 exterior chain is deposited, when IPv6 client is guided to the target of NAT64 gateway
When the URL of IPv4 exterior chain is constant, the exterior chain data information of caching is directly sent to IPv6 client etc. by NAT64 gateway.
Specifically, guaranteeing IPv6 in order to avoid the external world cracks the browser script that NAT64 gateway is sent to IPv6 client
The safety of client and NAT64 gateway, receives the webpage that NAT64 gateway is sent, and webpage carries the URL of initial IPv4 exterior chain
And the process of browser script can be with specifically: receives the webpage that NAT64 webpage is sent, webpage carries initial IPv4 exterior chain
URL and the browser script for passing through Code obfuscation.
In concrete application scene, IPv4 main web site and Target IP v4 exterior chain are told for the ease of NAT64 gateway, is improved
NAT64 gateway tells the efficiency of IPv4 main web site and Target IP v4 exterior chain, and exterior chain mark can be added in Target IP v4 exterior chain
Know, be Target IP v4 exterior chain to inform containing the address IPv4 that the exterior chain identifies, is then IPv4 in NAT64 gateway flow-guiding identification
It, can between NAT64 gateway flow-guiding identification and the URL of initial IPv4 exterior chain when the DNS domain name of website or the IP address of NAT64 gateway
To be identified added with preset exterior chain.Specifically, exterior chain mark can add the NAT64 gateway water conservancy diversion in Target IP v4 exterior chain
Between mark and the URL of initial IPv4 exterior chain, for example NAT64 gateway flow-guiding identification is the DNS domain name of the website IPv4, initial IPv4
Exterior chain are as follows:
<a href=" http://www.sohu.com/a.html ">, the DNS domain of the website IPv4 are entitled
Www.abc.com, exterior chain are identified as SPECIALSTR, then Target IP v4 exterior chain can be with are as follows:
<a href=" http://www.abc.com/SPECIALSTR/http/www.sohu.com/a.html ">.
In concrete application scene, IPv6 client may first access IPv4 main web site, then when accessing initial IPv4 exterior chain
In concrete application scene, IPv6 client can also send parsing IPv4 main web site before the URL for obtaining Target IP v4 exterior chain
DNS domain name request to IPv6 client DNS, receive IPv6 client DNS return NAT64 gateway address, build
Vertical communication connection, such as HTTP connection etc. NAT64 gateway between, and send and access the request of IPv4 main web site to NAT64 net
It closes；Correspondingly, NAT64 gateway establish and IPv4 main web site between communication connection, obtain IPv4 main web site on data information simultaneously
It is back to IPv6 client.The type of NAT64 gateway involved in the application can be Web gateway, WAF, AD
(Application Delivery, application delivery) etc..
Step S102: the URL of Target IP v4 exterior chain is guided to by NAT64 gateway based on NAT64 gateway flow-guiding identification.
In practical application, after IPv6 client obtains the URL of Target IP v4 exterior chain, in the URL for obtaining initial IPv4 exterior chain
Exterior chain data information when, due to the presence of NAT64 gateway flow-guiding identification, IPv6 client can be by the URL of Target IP v4 exterior chain
It is guided to NAT64 gateway.It in the process, can be directly by target if IPv6 client establishes connection with NAT64 gateway
The URL of IPv4 exterior chain is guided to NAT64 gateway, if IPv6 client does not establish connection, IPv6 client meeting with NAT64 gateway
Think that the exterior chain is located on main web site, the IPv6 address resolution for being directed to main web site DNS can be initiated first, to obtain NAT64 net
The address IPv6 of pass is realized the flow of the URL of access target IPv4 exterior chain being guided to NAT64 gateway.
Step S103: the data information sent after the URL of the initial IPv4 exterior chain of NAT64 gateway access is received.
In practical application, after the URL of Target IP v4 exterior chain is guided to NAT64 gateway by IPv6 client；NAT64 gateway connects
After the URL for receiving Target IP v4 exterior chain, the URL of initial IPv4 exterior chain can be parsed from the URL of Target IP v4 exterior chain, accessed
The URL of initial IPv4 exterior chain simultaneously obtains the data information in the URL of initial IPv4 exterior chain, the number that NAT64 gateway will acquire later
It is believed that breath is transmitted to IPv6 client；Correspondingly, IPv6 client just receives the data information of NAT64 gateway transmission.
In concrete application scene, in order to guarantee the communications security between IPv6 client and NAT64 gateway, in NAT64 net
It closes in the case where supporting SSL (Secure Sockets Layer Secure Socket Layer) unloading, between IPv6 client and NAT64 gateway
Communication connection can be protected by SSL, then the URL of Target IP v4 exterior chain is guided to based on NAT64 gateway flow-guiding identification
The process of NAT64 gateway can be with specifically: by ssl protocol, based on NAT64 gateway flow-guiding identification by Target IP v4 exterior chain
URL is guided to NAT64 gateway；Correspondingly, the exterior chain data sent after the URL of the reception initial IPv4 exterior chain of NAT64 gateway access
The process of information can be with specifically: by ssl protocol, receive send after the URL of the initial IPv4 exterior chain of NAT64 gateway access it is outer
Chain data information.It, can also be with specifically, the safety in order to guarantee the communication connection of interchain outside NAT64 gateway and initial IPv4
The communication connection of interchain outside NAT64 gateway and initial IPv4 is protected by ssl protocol, then receives NAT64 gateway access
The process of the data information sent after the URL of initial IPv4 exterior chain can be with specifically: receives NAT64 gateway and passes through ssl protocol visit
Ask the data information sent after the URL of initial IPv4 exterior chain.
A kind of access IPv4 exterior chain method provided by the present application is applied to IPv6 client, obtains Target IP v4 exterior chain
The URL of URL, Target IP v4 exterior chain are made of the URL of NAT64 gateway flow-guiding identification and initial IPv4 exterior chain；Based on NAT64 gateway
The URL of Target IP v4 exterior chain is guided to NAT64 gateway by flow-guiding identification；Receive the URL of the initial IPv4 exterior chain of NAT64 gateway access
The data information sent afterwards.A kind of access IPv4 exterior chain method provided by the present application, only need to by NAT64 gateway flow-guiding identification,
It may make IPv6 client that the URL of Target IP v4 exterior chain is guided to NAT64 gateway, obtained by NAT64 gateway initial
Exterior chain data information in the URL of IPv4 exterior chain, so that IPv6 client is not required to directly access the URL of initial IPv4 exterior chain, from
And exterior chain data information can not be obtained and skylight occur by avoiding when IPv6 client directly accesses the URL of initial IPv4 exterior chain
Situation need to only be can be realized compared with prior art by NAT64 gateway flow-guiding identification, and process is easy, and applicability is high.
Referring to Fig. 2, Fig. 2 is a kind of second flow chart for accessing IPv4 exterior chain method provided by the embodiments of the present application.
A kind of access IPv4 exterior chain method provided by the embodiments of the present application, be applied to NAT64 gateway, method may include with
Lower step:
Step S201: the request of the URL of IPv6 client access target IPv4 exterior chain, the URL of Target IP v4 exterior chain are received
It is made of the URL of NAT64 gateway flow-guiding identification and initial IPv4 exterior chain.
Step S202: accessing to the URL of initial IPv4 exterior chain, and will access the result of the URL of initial IPv4 exterior chain
It is sent to IPv6 client.
Can be refering to the corresponding description in above-described embodiment about the associated description in this embodiment, details are not described herein.
In the embodiment depicted in figure 2, NAT64 gateway flow-guiding identification is the DNS domain name of the website IPv4 or the IP of NAT64 gateway
When address, before NAT64 gateway receives the request of the URL of IPv6 client access target IPv4 exterior chain, target can also be generated
The URL of IPv4 exterior chain, and the URL of Target IP v4 exterior chain is sent to IPv6 client.Namely the URL of Target IP v4 exterior chain by
NAT64 gateway generates, correspondingly, IPv6 client receives the URL for the Target IP v4 exterior chain that NAT64 gateway is sent.
In the embodiment depicted in figure 2, when NAT64 gateway flow-guiding identification is the DNS domain name of the website IPv4, NAT64 gateway is raw
At the URL of Target IP v4 exterior chain, and can be with by the URL of the Target IP v4 exterior chain process for being sent to IPv6 client specifically: it is raw
It is encrypted at the URL of Target IP v4 exterior chain, and to the URL of Target IP v4 exterior chain；By the URL of encrypted Target IP v4 exterior chain
It is sent to IPv6 client.
In the embodiment depicted in figure 2, when NAT64 gateway flow-guiding identification is the DNS domain name of the website IPv4, NAT64 gateway is raw
At the URL of Target IP v4 exterior chain, and can be with by the URL of the Target IP v4 exterior chain process for being sent to IPv6 client specifically: it is raw
At the URL of Target IP v4 exterior chain；Timestamp is added in the URL of Target IP v4 exterior chain；URL and time to initial IPv4 exterior chain
Stamp is encrypted；The URL of encrypted Target IP v4 exterior chain is sent to IPv6 client.
In the embodiment depicted in figure 2, NAT64 gateway flow-guiding identification is the DNS domain name of the website IPv4 or the IP of NAT64 gateway
When address, NAT64 gateway, can also be to IPv6 before receiving the request of URL of IPv6 client access target IPv4 exterior chain
Client sends the webpage for carrying the URL of browser script and initial IPv4 exterior chain, so that IPv6 client generates target
The URL of IPv4 exterior chain.
In the embodiment depicted in figure 2, NAT64 gateway flow-guiding identification is the DNS domain name of the website IPv4 or the IP of NAT64 gateway
When address, the process that NAT64 gateway receives the request of the URL of IPv6 client access target IPv4 exterior chain can be with specifically: connects
The request of the URL for the access target IPv4 exterior chain that receipts IPv6 client is sent by ssl protocol.
In the embodiment depicted in figure 2, NAT64 gateway flow-guiding identification is the DNS domain name of the website IPv4 or the IP of NAT64 gateway
When address, process that NAT64 gateway accesses to the URL of initial IPv4 exterior chain can be with specifically: based on ssl protocol to initial
The URL of IPv4 exterior chain accesses.
In the embodiment depicted in figure 2, NAT64 gateway flow-guiding identification is the DNS domain name of the website IPv4 or the IP of NAT64 gateway
When address, NAT64 gateway flow-guiding identification can be before the URL of initial IPv4 exterior chain.
Referring to Fig. 3, Fig. 3 is a kind of third flow chart for accessing IPv4 exterior chain method provided by the embodiments of the present application.
In practical application, a kind of access IPv4 exterior chain method provided by the embodiments of the present application be may comprise steps of:
Step S301:IPv6 client sends the request of the DNS domain name of parsing IPv4 main web site to IPv6 client
DNS。
The DNS of step S302:IPv6 client returns to the address of NAT64 gateway to IPv6 client.
Step S303:IPv6 client establishes the communication connection between NAT64 gateway, and sends access IPv4 main web site
It requests to NAT64 gateway.
Step S304:NAT64 gateway establishes the communication connection between IPv4 main web site.
Step S305:NAT64 gateway access IPv4 main web site obtains the initial IPv4 exterior chain carried in IPv4 main web site
URL。
Step S306:NAT64 gateway adds the DNS domain name of the website IPv4 before the URL of initial IPv4 exterior chain, obtains mesh
The URL of IPv4 exterior chain is marked, URL to the IPv6 client of Target IP v4 exterior chain is returned.
Step S307:IPv6 client renders IPv4 main web site web page contents, and obtains the data letter of Target IP v4 exterior chain
Breath.
Step S308:IPv6 client sends the request of the URL of access target IPv4 exterior chain to NAT64 gateway.
Step S309:NAT64 gateway determines that Target IP v4 exterior chain is exterior chain network address based on the DNS domain name of the website IPv4, solution
The URL of the initial IPv4 exterior chain in the URL of Target IP v4 exterior chain is precipitated.
Step S310:NAT64 gateway obtains the DNS domain name of initial IPv4 exterior chain to the dns resolution of IPv4 main web site, is based on
The DNS domain name of initial IPv4 exterior chain obtains data information.
Step S311:NAT64 gateway returned data information is to IPv6 client.
Step S312:IPv6 client combines the web page contents and data information of IPv4 main web site, shows final webpage.
Present invention also provides chain apparatus outside a kind of access IPv4, with a kind of access provided by the embodiments of the present application
The correspondence effect that IPv4 exterior chain method has.Referring to Fig. 4, Fig. 4 is a kind of access IPv4 exterior chain provided by the embodiments of the present application
The first structure diagram of device.
A kind of outer chain apparatus of access IPv4 provided by the embodiments of the present application, is applied to IPv6 client, may include:
First obtains module 101, and for obtaining the URL of Target IP v4 exterior chain, the URL of Target IP v4 exterior chain is by NAT64 net
Close the URL composition of flow-guiding identification and initial IPv4 exterior chain；
First water conservancy diversion module 102, for being guided to the URL of Target IP v4 exterior chain based on NAT64 gateway flow-guiding identification
NAT64 gateway；
First receiving module 103, the data letter sent after the URL for receiving the initial IPv4 exterior chain of NAT64 gateway access
Breath.
A kind of outer chain apparatus of access IPv4 provided by the embodiments of the present application, is applied to IPv6 client, Target IP v4 exterior chain
URL generated by NAT64 gateway, first acquisition module may include:
First receiving unit, the URL of the Target IP v4 exterior chain for receiving the transmission of NAT64 gateway.
A kind of outer chain apparatus of access IPv4 provided by the embodiments of the present application, is applied to IPv6 client, Target IP v4 exterior chain
URL generated by IPv6 client, first acquisition module may include:
Second receiving unit, for receiving the webpage of NAT64 gateway transmission, webpage carries the URL of initial IPv4 exterior chain
And browser script；
First Traversal Unit, for traversing out the URL of the initial IPv4 exterior chain carried in webpage based on browser script；
First assembled unit, for URL the and NAT64 gateway flow-guiding identification of initial IPv4 exterior chain to be combined into Target IP v4
The URL of exterior chain.
A kind of outer chain apparatus of access IPv4 provided by the embodiments of the present application, is applied to IPv6 client, the second receiving unit
May include:
First receiving subelement, the webpage of the caching for receiving the transmission of NAT64 gateway；
Wherein, the process of NAT64 gateway transmission webpage includes:
The caching last time is sent to the URL for carrying initial IPv4 exterior chain of IPv6 client and the net of browser script
Page；
Receive the request of the website data information for the request IPv4 main web site that IPv6 client is sent；
Judge whether webpage matches with request, if so, sending webpage to IPv6 client.
A kind of outer chain apparatus of access IPv4 provided by the embodiments of the present application, is applied to IPv6 client, NAT64 gateway water conservancy diversion
It is identified between mark and the URL of initial IPv4 exterior chain added with preset exterior chain.
A kind of outer chain apparatus of access IPv4 provided by the embodiments of the present application, is applied to IPv6 client, the first water conservancy diversion module
May include:
First flow guiding unit, for by ssl protocol, based on NAT64 gateway flow-guiding identification by the URL of Target IP v4 exterior chain
It is guided to NAT64 gateway.
A kind of outer chain apparatus of access IPv4 provided by the embodiments of the present application, is applied to IPv6 client, the first receiving module
May include:
Third receiving unit is sent after accessing the URL of initial IPv4 exterior chain for receiving NAT64 gateway by ssl protocol
Data information.
A kind of outer chain apparatus of access IPv4 provided by the embodiments of the present application, is applied to IPv6 client, NAT64 gateway water conservancy diversion
Mark is before the URL of initial IPv4 exterior chain.
A kind of outer chain apparatus of access IPv4 provided by the embodiments of the present application, is applied to IPv6 client, NAT64 gateway water conservancy diversion
Mark includes the DNS domain name of the website IPv4.
A kind of outer chain apparatus of access IPv4 provided by the embodiments of the present application, is applied to IPv6 client, NAT64 gateway water conservancy diversion
Mark includes the IP address of NAT64 gateway.
A kind of outer chain apparatus of access IPv4 provided by the embodiments of the present application, is applied to NAT64 gateway, may include:
Second receiving module, the request of the URL for receiving IPv6 client access target IPv4 exterior chain, outside Target IP v4
The URL of chain is made of the URL of NAT64 gateway flow-guiding identification and initial IPv4 exterior chain；
First access modules access for the URL to initial IPv4 exterior chain, and will access initial IPv4 exterior chain
The result of URL is sent to IPv6 client.
A kind of outer chain apparatus of access IPv4 provided by the embodiments of the present application, is applied to NAT64 gateway, can also include:
First generation module receives asking for the URL of IPv6 client access target IPv4 exterior chain for the second receiving module
Before asking, the URL of Target IP v4 exterior chain is generated, and the URL of Target IP v4 exterior chain is sent to IPv6 client.
A kind of outer chain apparatus of access IPv4 provided by the embodiments of the present application, is applied to NAT64 gateway, the first generation module can
To include:
First generation unit is encrypted for generating the URL of Target IP v4 exterior chain, and to the URL of Target IP v4 exterior chain；
First transmission unit, for the URL of encrypted Target IP v4 exterior chain to be sent to IPv6 client.
A kind of outer chain apparatus of access IPv4 provided by the embodiments of the present application, is applied to NAT64 gateway, the first generation module can
To include:
Second generation unit, for generating the URL of Target IP v4 exterior chain；
First adding unit, for adding timestamp in the URL of Target IP v4 exterior chain；
First encryption unit, for initial IPv4 exterior chain URL and timestamp encrypt；
Second transmission unit, for the URL of encrypted Target IP v4 exterior chain to be sent to IPv6 client.
A kind of outer chain apparatus of access IPv4 provided by the embodiments of the present application, is applied to NAT64 gateway, can also include:
First sending module receives asking for the URL of IPv6 client access target IPv4 exterior chain for the second receiving module
Before asking, the webpage for carrying the URL of browser script and initial IPv4 exterior chain is sent to IPv6 client, so that IPv6 is objective
The URL of family end generation Target IP v4 exterior chain.
A kind of outer chain apparatus of access IPv4 provided by the embodiments of the present application, is applied to NAT64 gateway, the second receiving module can
To include:
4th receiving unit, for receiving the URL for the access target IPv4 exterior chain that IPv6 client is sent by ssl protocol
Request.
A kind of outer chain apparatus of access IPv4 provided by the embodiments of the present application, is applied in NAT64 gateway, the first access modules
May include:
First access unit, for being accessed based on URL of the ssl protocol to initial IPv4 exterior chain.
A kind of outer chain apparatus of access IPv4 provided by the embodiments of the present application, is applied in NAT64 gateway, NAT64 gateway is led
Traffic identifier can be before the URL of initial IPv4 exterior chain.
A kind of outer chain apparatus of access IPv4 provided by the embodiments of the present application, is applied in NAT64 gateway, NAT64 gateway is led
Traffic identifier may include the DNS domain name of the website IPv4.
A kind of outer chain apparatus of access IPv4 provided by the embodiments of the present application, is applied in NAT64 gateway, NAT64 gateway is led
Traffic identifier may include the IP address of NAT64 gateway.
Present invention also provides a kind of access IPv4 exterior chain equipment and computer readable storage mediums, all have the application
The correspondence effect that a kind of access IPv4 exterior chain method applied to IPv6 client that embodiment provides has.Referring to Fig. 5, figure
5 be a kind of structural schematic diagram for accessing IPv4 exterior chain equipment provided by the embodiments of the present application.
A kind of access IPv4 exterior chain equipment provided by the embodiments of the present application is applied in IPv6 client, may include:
Memory 201, for storing computer program；
Processor 202 is realized when for executing computer program and is applied to IPv6 visitor described in any embodiment as above
The step of access IPv4 exterior chain method at family end.
Referring to Fig. 6, can also include: in another access IPv4 exterior chain equipment provided by the embodiments of the present application and handle
The input port 203 that device 202 connects is used for transmission the extraneous order inputted to processor 202；What is connect with processor 202 is aobvious
Show unit 204, the processing result for video-stream processor 202 is to the external world；The communication module 205 connecting with processor 202, is used for
Realize access IPv4 exterior chain equipment and extraneous communication.Display unit 204 can make display for display panel, laser scanning
Deng；Communication mode used by communication module 205 includes but is not limited to that mobile high definition chained technology (HML), general serial are total
Line (USB), is wirelessly connected high-definition media interface (HDMI): adopting wireless fidelity technology (WiFi), Bluetooth Communication Technology, low-power consumption
Bluetooth Communication Technology, the communication technology based on IEEE802.11s.
A kind of computer readable storage medium provided by the embodiments of the present application is applied in IPV6 client, and computer can
It reads to be stored with computer program in storage medium, be realized when computer program is executed by processor described by any embodiment as above
The access IPv4 exterior chain method applied to IPv6 client the step of.
Computer readable storage medium involved in the application includes random access memory (RAM), memory, read-only memory
(ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technical field
Any other form of storage medium well known to interior.
It is related in a kind of access IPv4 provided by the embodiments of the present application outer chain apparatus, equipment and computer readable storage medium
Partial explanation refers to the detailed description of corresponding part in a kind of access IPv4 exterior chain method provided by the embodiments of the present application,
This is repeated no more.In addition, in above-mentioned technical proposal provided by the embodiments of the present application with correspond in the prior art technical solution realize
The consistent part of principle is simultaneously unspecified, in order to avoid excessively repeat.
It should also be noted that, herein, relational terms such as first and second and the like are used merely to one
Entity or operation are distinguished with another entity or operation, without necessarily requiring or implying between these entities or operation
There are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to contain
Lid non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
The foregoing description of the disclosed embodiments makes those skilled in the art can be realized or use the application.To this
A variety of modifications of a little embodiments will be apparent for a person skilled in the art, and the general principles defined herein can
Without departing from the spirit or scope of the application, to realize in other embodiments.Therefore, the application will not be limited
It is formed on the embodiments shown herein, and is to fit to consistent with the principles and novel features disclosed in this article widest
Range.
Claims (23)
1. a kind of access IPv4 exterior chain method, which is characterized in that be applied to IPv6 client, which comprises
The URL of Target IP v4 exterior chain is obtained, the URL of the Target IP v4 exterior chain is by NAT64 gateway flow-guiding identification and initial IPv4
The URL of exterior chain is formed；
The URL of the Target IP v4 exterior chain is guided to NAT64 gateway based on the NAT64 gateway flow-guiding identification；
Receive the data information sent after the URL of initial IPv4 exterior chain described in the NAT64 gateway access.
2. the method according to claim 1, wherein the URL of the Target IP v4 exterior chain is by the NAT64 gateway
It generates, the URL for obtaining Target IP v4 exterior chain, comprising:
Receive the URL for the Target IP v4 exterior chain that the NAT64 gateway is sent.
3. the method according to claim 1, wherein the URL of the Target IP v4 exterior chain is by the IPv6 client
End generates, the URL for obtaining Target IP v4 exterior chain, comprising:
The webpage that the NAT64 gateway is sent is received, the webpage carries the URL and browser foot of the initial IPv4 exterior chain
This；
The URL of the initial IPv4 exterior chain carried in the webpage is traversed out based on the browser script；
The URL of the initial IPv4 exterior chain and the NAT64 gateway flow-guiding identification are combined into the Target IP v4 exterior chain
URL。
4. according to the method described in claim 3, it is characterized in that, the webpage for receiving the NAT64 gateway and sending, packet
It includes:
Receive the webpage for the caching that the NAT64 gateway is sent；
Wherein, the process that the NAT64 gateway sends the webpage includes:
The caching last time is sent to the URL that carries the initial IPv4 exterior chain and browser script of the IPv6 client
Webpage；
Receive the request of the website data information for the request IPv4 main web site that the IPv6 client is sent；
Judge whether the webpage matches with the request, if so, sending the webpage to the IPv6 client.
5. the method according to claim 1, wherein the NAT64 gateway flow-guiding identification and the initial IPv4
It is identified between the URL of exterior chain added with preset exterior chain.
6. according to the method described in claim 5, it is characterized in that, described will be described based on the NAT64 gateway flow-guiding identification
The URL of Target IP v4 exterior chain is guided to NAT64 gateway, comprising:
By ssl protocol, the URL of the Target IP v4 exterior chain is guided to by NAT64 net based on the NAT64 gateway flow-guiding identification
It closes.
7. according to the method described in claim 6, it is characterized in that, described receive described in the NAT64 gateway access initially
The data information sent after the URL of IPv4 exterior chain, comprising:
It receives the NAT64 gateway and accesses the data letter sent after the URL of the initial IPv4 exterior chain by the ssl protocol
Breath.
8. method according to any one of claim 1 to 7, which is characterized in that the NAT64 gateway flow-guiding identification is in institute
Before the URL for stating initial IPv4 exterior chain.
9. according to the method described in claim 8, it is characterized in that, the NAT64 gateway flow-guiding identification includes the website IPv4
DNS domain name.
10. according to the method in claim 2 or 3, which is characterized in that the NAT64 gateway flow-guiding identification includes described
The IP address of NAT64 gateway.
11. a kind of access IPv4 exterior chain method, which is characterized in that be applied to NAT64 gateway, which comprises
The request of the URL of IPv6 client access target IPv4 exterior chain is received, the URL of the Target IP v4 exterior chain is by NAT64 net
Close the URL composition of flow-guiding identification and initial IPv4 exterior chain；
It accesses to the URL of the initial IPv4 exterior chain, and the result for accessing the URL of the initial IPv4 exterior chain is sent to
The IPv6 client.
12. according to the method for claim 11, which is characterized in that the reception IPv6 client access target IPv4 exterior chain
URL request before, further includes:
The URL of the Target IP v4 exterior chain is generated, and the URL of the Target IP v4 exterior chain is sent to the IPv6 client.
13. according to the method for claim 12, which is characterized in that the URL for generating the Target IP v4 exterior chain, and will
The URL of the Target IP v4 exterior chain is sent to the IPv6 client
The URL of the Target IP v4 exterior chain is generated, and the URL of the Target IP v4 exterior chain is encrypted；
The URL of the encrypted Target IP v4 exterior chain is sent to the IPv6 client.
14. according to the method for claim 12, which is characterized in that the URL for generating the Target IP v4 exterior chain, and will
The URL of the Target IP v4 exterior chain is sent to the IPv6 client
Generate the URL of the Target IP v4 exterior chain；
Timestamp is added in the URL of the Target IP v4 exterior chain；
The URL and the timestamp of the initial IPv4 exterior chain are encrypted；
The URL of the encrypted Target IP v4 exterior chain is sent to the IPv6 client.
15. according to the method for claim 11, which is characterized in that receiving outside the IPv6 client access target IPv4
Before the request of the URL of chain, further includes:
The webpage for carrying the URL of browser script and the initial IPv4 exterior chain is sent to the IPv6 client, so that
The IPv6 client generates the URL of the Target IP v4 exterior chain.
16. according to the method for claim 11, which is characterized in that described to receive the IPv6 client access target IPv4
The request of the URL of exterior chain, comprising:
Receive the request of the URL for the access target IPv4 exterior chain that the IPv6 client is sent by ssl protocol.
17. according to the method for claim 11, which is characterized in that the URL to the initial IPv4 exterior chain is visited
It asks and includes:
It is accessed based on URL of the ssl protocol to the initial IPv4 exterior chain.
18. method described in any one of 1 to 17 according to claim 1, which is characterized in that the NAT64 gateway flow-guiding identification
Before the URL of the initial IPv4 exterior chain.
19. according to the method for claim 18, which is characterized in that the NAT64 gateway flow-guiding identification includes the website IPv4
DNS domain name.
20. method described in 2 or 15 according to claim 1, which is characterized in that the NAT64 gateway flow-guiding identification includes described
The IP address of NAT64 gateway.
21. a kind of outer chain apparatus of access IPv4, which is characterized in that be applied to IPv6 client, comprising:
First obtains module, and for obtaining the URL of Target IP v4 exterior chain, the URL of the Target IP v4 exterior chain is led by NAT64 gateway
Traffic identifier and the URL of initial IPv4 exterior chain composition；
First water conservancy diversion module, for being guided to the URL of the Target IP v4 exterior chain based on the NAT64 gateway flow-guiding identification
NAT64 gateway；
First receiving module, for receiving the data sent after the URL of initial IPv4 exterior chain described in the NAT64 gateway access letter
Breath.
22. a kind of access IPv4 exterior chain equipment, which is characterized in that be applied in IPv6 client, comprising:
Memory, for storing computer program；
Processor is realized when for executing the computer program outside access IPv4 as described in any one of claim 1 to 10
The step of chain method.
23. a kind of computer readable storage medium, which is characterized in that it is applied in IPv6 client, it is described computer-readable to deposit
It is stored with computer program in storage media, is realized when the computer program is executed by processor as claims 1 to 10 is any
The step of access IPv4 exterior chain method described in item.
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