CN105939316A - Message forwarding method and device - Google Patents
Message forwarding method and device Download PDFInfo
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- CN105939316A CN105939316A CN201510702954.1A CN201510702954A CN105939316A CN 105939316 A CN105939316 A CN 105939316A CN 201510702954 A CN201510702954 A CN 201510702954A CN 105939316 A CN105939316 A CN 105939316A
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- message
- address
- ipv6
- ipv4
- tunnel head
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
- H04L69/167—Adaptation for transition between two IP versions, e.g. between IPv4 and IPv6
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/74—Address processing for routing
- H04L45/741—Routing in networks with a plurality of addressing schemes, e.g. with both IPv4 and IPv6
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2101/00—Indexing scheme associated with group H04L61/00
- H04L2101/60—Types of network addresses
- H04L2101/686—Types of network addresses using dual-stack hosts, e.g. in Internet protocol version 4 [IPv4]/Internet protocol version 6 [IPv6] networks
Abstract
The invention provides a message forwarding method and a message forwarding device. The method comprises the steps of if determining that a message sent to a server is an IPv4 message, adding a tunnel head which comprises information using the IPv6 address of a virtual network adapter as the source address of the message, and the IPv6 address of a pre-stored AFTR device as the target address of the message into the message; and sending the message added with the tunnel head to the server via the virtual network adapter of the client, thus achieving the purpose that a double-stack user is accessed to an IPv6 single-stack network to visit an IPv4 server.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of message forwarding method and device.
Background technology
At present, due to IPv4 (Internet protocol fourth edition), address is the most exhausted, and next generation network address
Protocol IP v6 (Internet protocol sixth version) then reaches its maturity, and correspondingly, IPv6 network accesses IPv4 network
Demand the strongest, to this end, NAT64 agreement is arisen at the historic moment.
NAT64(Network Address and Protocol Translation from IPv6 Client to IPv4
Sever, address and protocol conversion, from IPv6 client to IPv4 server) most IPv6 can be tackled
Network accesses IPv4 network demand, but server address can be included in inside message, such as by some application
ALG (Application Layer in NAT (Network Address Translation, network address translation) technology
Gateway Service, ALG service) agreement.Owing to agreement is numerous and wherein most is non-public affairs
Protocols having, causes NAT64 technology cannot well solve problems, thus amplifies out multiple technologies and solves
Problems, but the technology solving problems at present is required for entering the network equipment or client protocol stack
Row transformation, needs manufacturer terminal and equipment vendors' exploitation, implements difficulty bigger.Therefore, double stack users how
Accessing the mono-stack network of IPv6 and accessing IPv4 server is current problem demanding prompt solution.
Summary of the invention
For the defect of prior art, the invention provides a kind of message forwarding method and device.
The present invention provides a kind of message forwarding method, is applied to client, and wherein the method includes:
If it is determined that the message to server transmission is IPv4 message, by described message interpolation tunnel head, wherein,
Described tunnel head includes the IPv6 address of described Microsoft Loopback Adapter as the source address of described message, by prestore
The IPv6 address of AFTR equipment is as the information of the destination address of described message；
By the Microsoft Loopback Adapter of described client, the message that with the addition of tunnel head is sent to server.
The present invention also provides for a kind of apparatus for forwarding message, is applied to client, and wherein, this device includes:
Adding device, for determine to server send message be IPv4 message time, described message is added
Adding tunnel head, wherein, described tunnel head includes the IPv6 address of described Microsoft Loopback Adapter as described message
Source address, using the IPv6 address of AFTR equipment that prestores as the information of the destination address of described message；
Transmitting element, for being sent the message that with the addition of tunnel head to clothes by the Microsoft Loopback Adapter of described client
Business device.
The message forwarding method of present invention offer and device, be IPv4 determining the message sent to server
During message, using IPv4 message add tunnel head so that this IPv4 message as IPv6 message by the void of client
Intend network interface card to send to server, and then reach double stack user and access the mono-stack network of IPv6 and access IPv4 server
Purpose.
Accompanying drawing explanation
Fig. 1 is a kind of message forwarding method application scenarios schematic diagram in the embodiment of the present invention；
Fig. 2 is a kind of message forwarding method schematic flow sheet in the embodiment of the present invention；
Fig. 3 is the logical structure schematic diagram of a kind of apparatus for forwarding message in the embodiment of the present invention；
Fig. 4 is the hardware structure schematic diagram of apparatus for forwarding message place client in the embodiment of the present invention.
Detailed description of the invention
For making the purpose of the application, technical scheme and advantage clearer, referring to the drawings to this Shen
Please scheme be described in further detail.
In order to solve problems of the prior art, the invention provides a kind of message forwarding method and dress
Put.
Fig. 1 shows the network environment schematic diagram that the inventive method is applied, including client, AFTR
(DS-Lite Address Family Transition Router element, DS-Lite address protocol conversion route
Device) equipment (DS-lite gateway device), user access IPv4 be server and DNS (Domain Name
System, domain name system) server.
Refer to Fig. 2, for the handling process schematic diagram of the message forwarding method that the present invention provides, this message forwards
Method is applied to client.Wherein, this message forwarding method comprises the following steps:
Step 201, however, it is determined that the message sent to server is IPv4 message, adds tunnel by described message
Head, wherein, described tunnel head include using the IPv6 address of described Microsoft Loopback Adapter as described message source address,
Using the IPv6 address of AFTR equipment that prestores as the information of the destination address of described message；
In actual application, for client, one Microsoft Loopback Adapter can be installed in advance, it is generally the case that virtual net
MTU (Maximum Transmission Unit, the MTU) value of card is defaulted as 1500, this
The MTU of this Microsoft Loopback Adapter can be set to by bright embodiment 1460 to ensure that the follow-up head to message is believed
Breath is normally revised.
Afterwards, enable double stack functions of Microsoft Loopback Adapter, and be this Microsoft Loopback Adapter configuration of IP v4 address, as entering
IPv4 address during row DS-lite internal layer DS-lite encapsulation uses, and such as, this IPv4 address can be
192.168.X.X。
Further, DHCP (Dynamic Host Configuration is passed through by this Microsoft Loopback Adapter with user network
Protocol, DHCP) v6, pppoe (PPP over Ethernet, point-to-point on Ethernet
Agreement) agreements such as 6 obtain IPv6 address after holding consultation, and the IPv6 address that will obtain after consulting is as this
The IPv6 address of Microsoft Loopback Adapter.
The outgoing interface of all IPv6 default routes is set to this Microsoft Loopback Adapter, so that what subsequent client sent
All flows are all forwarded by this Microsoft Loopback Adapter, complete flow drain work with this.
The embodiment of the present invention need to be based on there is AFTR equipment (the DS-lite net that can do address conversion in network
Close) complete, therefore, the embodiment of the present invention also needs to the IPv6 address of the transmission described AFTR equipment of acquisition
Request message, to obtain the IPv6 address of described AFTR equipment, and preserves the IPv6 of the AFTR equipment of acquisition
Address.Afterwards, using the IPv6 of the AFTR equipment obtained as DS-lite encapsulate time purpose IPv6 of tunnel head
Address, to process the access request that IPv4 client is initiated.
Specifically, this request message can be the DNS request message that client sends to dns server,
When by the IPv6 address of DNS request Receive message AFTR, can be by by this DNS request message
DHCPv6 Option Field in carry the mode of AFTR domain name and obtain；Manual configuration territory can also be passed through
Name or the various ways such as aftr.ds-lite of acquiescence is set to obtain the IPv6 address of this AFTR equipment.
After the IPv6 address acquisition success of AFTR equipment, the IPv6 address of this AFTR equipment can be protected
Exist in the DS-lite encapsulating sheet that Microsoft Loopback Adapter is specified, in case follow-up use.
After above-mentioned configuration, client i.e. can send message to access via the Microsoft Loopback Adapter installed
IPv4 server.Before this, the embodiment of the present invention can also first determine whether to access via this Microsoft Loopback Adapter
The message that IPv4 server is sent is IPv4 message or IPv6 message.
If it is determined that this message is IPv4 message, the embodiment of the present invention is in order to ensure that this IPv4 message can normally connect
Enter the mono-stack network of IPv6 and access IPv4 server, need the IPv4 message sent by client is modified,
So that this IPv4 message is sent as IPv6 message.
This is specifically revised mode and may is that the IPv4 message sent by client is carried out DS-lite encapsulation,
So that this IPv4 message is added tunnel head.Wherein, the tunnel head added includes the IPv6 of described Microsoft Loopback Adapter
Address is as the source address of described message, the AFTR equipment that will prestore to Microsoft Loopback Adapter in the encapsulating sheet specified
IPv6 address as the information of the destination address of described message.Further, described tunnel head can also wrap
Include that to characterize this message actual be the protocol number of IPv4 message, such as " 4 ".This tunnel head form can be such as table 1
Shown in:
Table 1
Table 1 shows the tunnel head form that message is added, and is only the example for being further appreciated by the present invention,
It is not limited to the particular content in tunnel head form in the embodiment of the present invention.
It is assumed that after being consulted with user network by this Microsoft Loopback Adapter, the IPv6 ground of the Microsoft Loopback Adapter obtained
Location is 192.168.X.X, and the IPv6 address of the AFTR equipment of acquisition is 192.168.Y.Y, then client
When end accesses IPv4 server, the tunnel head that the IPv4 message for sending via Microsoft Loopback Adapter adds then includes institute
State source address 192.168.X.X of message, the destination address 192.168.Y.Y of described message, and characterize this report
Literary composition reality is the protocol number " 4 " of IPv4 message.
Further, the embodiment of the present invention may also listen for all transmissions to dns server DNS please
Ask message and the DNS back message replied by dns server.When described client sends DNS request
During message, record the requested number of times of entrained domain name in described DNS request message；Quilt when domain name
Request number of times arrives preset times, determines that described DNS request message is IPv6 message, please by described DNS
Ask that to be revised as characterizing described message for the first mark characterizing that described message is IPv6 message in message be IPv4
Second mark of message, and amended DNS request message is sent；Receiving according to described
After the DNS back message that DNS request message is replied, obtain the address carried in described DNS back message
Information, adds described address information after presetting labelling, preserves to the address information storehouse preset.
For example, it is possible to the default requested number of times of domain name (preset times) is set to 3, when listening to phase
When arriving 3 times with the requested number of times of domain name, illustrate that the domain name that this client is asked is not deposited in IPv6 network
, and cause client cannot obtain the DNS back message of IP address corresponding with the domain name asked.That
, after this DNS request message can being replicated, the DNS request message of this duplication will be used for table
Levy the first mark that described message is IPv6 message to be revised as characterizing the second mark that this message is IPv4 message.
: message as described in characterizing in this DNS request message is the AAAA record (the first mark) of IPv6 message
It is revised as characterizing the A record (the second mark) that described message is IPv4 message, then, by amended DNS
Request message sends to dns server.
Receive, in client, the DNS that dns server replys according to this amended DNS request message to return
After answering message, obtaining the address information carried in this DNS back message, this address information is asked by client
IPv4 address corresponding to the domain name asked.
In order to avoid IPv4 address and DNS cannot be re-used after upgrading to IPv6 version due to certain applications
Server proper communication, behind the IPv4 address that the embodiment of the present invention is carried in getting DNS back message,
Can by IPv4 address add preset labelling, with by this IPv4 address mark for Ipv6 address.Such as, should
Default labelling can be " FF9B:: ", if this IPv4 address is X.X.X.X, then this with the addition of default labelling
Address then may is that " FF9B::X.X.X.X " (Ipv6 address).
Afterwards, preserve adding markd address (Ipv6 address) to the address information storehouse preset.Its
In, the caching that this address information storehouse preset may be located at Microsoft Loopback Adapter is medium.
Understand according to above-mentioned, due in order to avoid part IPv4 message is because of cannot normal open positive with dns server
Believe and part IPv4 address can be revised as IPv6 address (the most above-mentioned IPv4 address that with the addition of default labelling),
Therefore, follow-up when client sends message via Microsoft Loopback Adapter to IPv4 server, however, it is determined that client warp
It is IPv6 message by Microsoft Loopback Adapter to the message that IPv4 server sends, then to determine the mesh of this IPv6 message
Address whether be added with default labelling, to judge whether this IPv6 message is the IPv4 being modified as IPv6 message
Message；If the destination address of this IPv6 message is added with default labelling, illustrate that this IPv6 message is to be revised as
The IPv4 message of IPv6 message, it may be assumed that this IPv6 message is actual is IPv4 message, can be by this IPv6 message
Source IP address be revised as the IPv4 address of described Microsoft Loopback Adapter, by the purpose IP address of described IPv6 message
In described default labelling delete.
Such as, if the message that destination address is FF9B:: beginning, then this message is rewritten.Assume mesh
Address be FF9B::X.X.X.X, the source IP address in amended IPv6 heading be Microsoft Loopback Adapter distribution
IPv4 address (192.168.X.X), default flag F F9B: in destination address: delete (i.e. X.X.X.X)
After the IPv4 heading of minimum 32, concrete form is shown in Table 2:
Table 2
Table 2 show the heading to the IPv6 message with default labelling modify after heading form,
It is only the example for being further appreciated by the present invention, is not limited in the embodiment of the present invention having pre-bidding
The heading of IPv6 message of note modify after heading form in particular content.
Afterwards, can incite somebody to action according to the handling process of the above-mentioned IPv4 message interpolation tunnel head to being sent by client
This IPv4 message being revised as IPv6 message adds tunnel head, does not repeats them here.
Step 202, is sent the message that with the addition of tunnel head to server by the Microsoft Loopback Adapter of described client.
The IPv4 message (including being revised as the IPv4 message of IPv6 message) that need to be sent by client is being added
After having added tunnel head, then this message that with the addition of tunnel head can be passed through by the Microsoft Loopback Adapter of described client
The mono-stack network of IPv6 sends to IPv4 server, and then reaches IPv4 message by the access of IPv6 mono-stack network
The purpose of server.
Further, after client receives the response message that described server is replied, if this response message
Tunnel head in the protocol number that carries of Next Header field be not 4, illustrate that this message is non-IPv4 message,
This non-IPv4 message then can be transmitted to system protocol stack process；
If the protocol number carried in the tunnel head according to described response message determines that described response message is IPv4 report
Literary composition, mates the source IP address of described response message with the address information prestored in described address information storehouse,
If the match is successful, described response message is carried out DS-lite decapsulation process, and by after DS-lite decapsulation
The source IP address of response message adds described default labelling, and purpose IP address is revised as described Microsoft Loopback Adapter
IPv6 address.
Specifically, backhaul IPv6 message (response message) the arrival void to client is sent when IPv4 server
When intending network interface card, whether first check for protocol number that in the tunnel head of this response message, Next Header field is carried
For for characterizing the protocol number 4 that this message is IPv4 message, if so, determining that this response message is IPv4 message,
First by the source IP address (IPv4 address) in message and the DNS cache address of record in virtual network
Comparing, if the match is successful, then this response message carries out message amendment, specifically amendment mode is:
IPv4 address, source (such as X.X.X.X) interpolation without presetting labelling after being decapsulated by DS-lite is in advance
Bidding is remembered, the IPv6 address of Microsoft Loopback Adapter is revised as in purpose IP address by (such as FF9B::X.X.X.X),
If message is TCP message, then also need to according to method of the prior art adjust serial number and verification and.
But, if the source IP address in message (IPv4 address) delays with the DNS of record in virtual network
Depositing after address compares, the match is successful, illustrates that this message carries IPv4 address, generally has
Application software resolves voluntarily, for this situation then can by send system protocol stack to process.
In sum, the message forwarding method that the present invention provides, is IPv4 determining the message sent to server
During message, using IPv4 message add tunnel head so that this IPv4 message as IPv6 message by the void of client
Intend network interface card to send to server, and then reach double stack user and access the mono-stack network of IPv6 and access IPv4 server
Purpose.
The present invention also provides for a kind of apparatus for forwarding message, and Fig. 3 is the structural representation of this apparatus for forwarding message,
This device can apply to client, and this apparatus for forwarding message can include adding device 301 and send single
Unit 302, wherein:
Adding device 301, for determine to server send message be IPv4 message time, by described report
Literary composition adds tunnel head, and wherein, described tunnel head includes the IPv6 address of described Microsoft Loopback Adapter as described report
The source address of literary composition, using the IPv6 address of AFTR equipment that prestores as the information of the destination address of described message；
Transmitting element 302, for being sent the message that with the addition of tunnel head extremely by the Microsoft Loopback Adapter of described client
Server.
Further, described transmitting element 302 can be also used for sending the IPv6 obtaining described AFTR equipment
The request message of address, to obtain the IPv6 address of described AFTR equipment；Preserve the described AFTR obtained
The IPv6 address of equipment.
Further, described device can also include recording unit 303, amendment unit 304 and indexing unit
305, wherein, record unit 303 is for when described client sends DNS request message, and record is described
The requested number of times of entrained domain name in DNS request message；Amendment unit 304, for when domain name
Requested number of times arrives preset times, determines that described DNS request message is IPv6 message, by described DNS
Request message is used for characterize the first mark that described message is IPv6 message and be revised as characterizing described message and is
Second mark of IPv4 message, and amended DNS request message is sent；Indexing unit 305,
For, after receiving the DNS back message replied according to described DNS request message, obtaining described DNS
The address information carried in back message, adds described address information after presetting labelling, and preservation is extremely preset
In address information storehouse.
Further, described device can also include determining unit 306 and deleting unit 307, wherein, really
Cell 306 is for before adding tunnel head by described message, when described user end to server sends
When message is IPv6 message, determine whether the destination address of described IPv6 message is added with default labelling；Delete
Unit 307, for when the destination address determining described IPv6 message is added with default labelling, by described IPv6
The source IP address of message is revised as the IPv4 address of described Microsoft Loopback Adapter, by purpose IP of described IPv6 message
Described default labelling in address is deleted.
Further, described tunnel head also includes that protocol number, described device can also include matching unit 308,
For after receiving the response message that described server is replied, if according in the tunnel head of described response message
The protocol number carried determines that described response message is IPv4 message, by source IP address and the institute of described response message
State the address information prestored in address information storehouse to mate, if the match is successful, described response message is carried out
DS-lite decapsulation processes, and adds described by the source IP address of the described response message after DS-lite decapsulation
Preset labelling, purpose IP address is revised as the IPv6 address of described Microsoft Loopback Adapter.
The present invention is applied to the apparatus for forwarding message of the network equipment can be with above-mentioned in concrete handling process
The handling process of message forwarding method is consistent, does not repeats them here.
Said apparatus can be realized by software, it is also possible to is realized by hardware, apparatus for forwarding message of the present invention
The hardware structure schematic diagram of the place network equipment all refers to shown in Fig. 4, and its basic hardware environment includes central authorities
Processor CPU, forwarding chip, memorizer and other hardware, wherein memory device includes machine readable
Instruction, CPU reads and performs machine readable instructions and performs the function of each unit in Fig. 3.
From the embodiment of any of the above method and apparatus it can be seen that the embodiment of the present invention provide message
Retransmission method and device, determine to server send message be IPv4 message time, IPv4 message is added
Add tunnel head so that this IPv4 message is sent to server by the Microsoft Loopback Adapter of client as IPv6 message, enter
And reach double stack user and access the purpose of IPv6 mono-stack network access IPv4 server.Due to the embodiment of the present invention
The custom driver that whole message interaction process fully relies on Microsoft Loopback Adapter completes, it is not necessary to change protocol stack,
Also without by auxiliary access device, therefore, the present invention also has higher ease for use.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all at this
Within the spirit of invention and principle, any modification, equivalent substitution and improvement etc. done, should be included in
Within the scope of protection of the invention.
Claims (10)
1. a message forwarding method, is applied to client, it is characterised in that described method includes:
If it is determined that the message to server transmission is IPv4 message, by described message interpolation tunnel head, wherein,
Described tunnel head includes the IPv6 address of described Microsoft Loopback Adapter as the source address of described message, by prestore
The IPv6 address of AFTR equipment is as the information of the destination address of described message；
By the Microsoft Loopback Adapter of described client, the message that with the addition of tunnel head is sent to server.
2. the method for claim 1, it is characterised in that described method also includes:
Send the request message of the IPv6 address obtaining described AFTR equipment, to obtain described AFTR equipment
IPv6 address；
Preserve the IPv6 address of the described AFTR equipment obtained.
3. the method for claim 1, it is characterised in that described method also includes:
When described client sends DNS request message, record entrained territory in described DNS request message
The requested number of times of name；
When the requested number of times of domain name arrives preset times, determine that described DNS request message is IPv6
Message, is revised as being used for characterizing the first mark that described message is IPv6 message in described DNS request message
Characterize the second mark that described message is IPv4 message, and amended DNS request message is sent；
After receiving the DNS back message replied according to described DNS request message, obtain described DNS
The address information carried in back message, adds described address information after presetting labelling, and preservation is extremely preset
In address information storehouse.
4. the method for claim 1, it is characterised in that before described message is added tunnel head,
Described method also includes:
When the message that described user end to server sends is IPv6 message, determine the mesh of described IPv6 message
Address whether be added with default labelling；
If having, the source IP address of described IPv6 message is revised as the IPv4 address of described Microsoft Loopback Adapter, will
Described default labelling in the purpose IP address of described IPv6 message is deleted.
5. the method as described in claim 1 or 4, it is characterised in that described tunnel head also includes protocol number；
After receiving the response message that described server is replied, if taking according in the tunnel head of described response message
The protocol number of band determines that described response message is IPv4 message, by the source IP address of described response message with described
The address information prestored in address information storehouse is mated, if the match is successful, carries out described response message
DS-lite decapsulation processes, and adds described by the source IP address of the described response message after DS-lite decapsulation
Preset labelling, purpose IP address is revised as the IPv6 address of described Microsoft Loopback Adapter.
6. an apparatus for forwarding message, is applied to client, it is characterised in that described device includes:
Adding device, for determine to server send message be IPv4 message time, described message is added
Adding tunnel head, wherein, described tunnel head includes the IPv6 address of described Microsoft Loopback Adapter as described message
Source address, using the IPv6 address of AFTR equipment that prestores as the information of the destination address of described message；
Transmitting element, for being sent the message that with the addition of tunnel head to clothes by the Microsoft Loopback Adapter of described client
Business device.
7. device as claimed in claim 6, it is characterised in that described transmitting element is additionally operable to:
Send the request message of the IPv6 address obtaining described AFTR equipment, to obtain described AFTR equipment
IPv6 address；
Preserve the IPv6 address of the described AFTR equipment obtained.
8. device as claimed in claim 6, it is characterised in that described device also includes:
Record unit, for when described client sends DNS request message, recording described DNS request
The requested number of times of entrained domain name in message；
Amendment unit, arrives preset times for the requested number of times when domain name, determines that described DNS please
Seeking message is IPv6 message, is IPv6 message by being used in described DNS request message characterizing described message
First mark is revised as characterizing the second mark that described message is IPv4 message, and by amended DNS request
Message sends；
Indexing unit, is used for after receiving the DNS back message replied according to described DNS request message,
Obtain the address information carried in described DNS back message, described address information added after presetting labelling,
Preserve to the address information storehouse preset.
9. device as claimed in claim 6, it is characterised in that described device also includes:
Determine unit, for before described message is added tunnel head, when described user end to server is sent out
When the message sent is IPv6 message, determine whether the destination address of described IPv6 message is added with default labelling；
Delete unit, for when the destination address determining described IPv6 message is added with default labelling, by institute
The source IP address stating IPv6 message is revised as the IPv4 address of described Microsoft Loopback Adapter, by described IPv6 message
Described default labelling in purpose IP address is deleted.
10. the device as described in claim 6 or 9, it is characterised in that described tunnel head also includes protocol number,
Described device also includes:
Matching unit, for after receiving the response message that described server is replied, if according to described response
The protocol number carried in the tunnel head of message determines that described response message is IPv4 message, by described response message
Source IP address mate with the address information prestored in described address information storehouse, if the match is successful, to institute
State response message and carry out DS-lite decapsulation process, and by the source of the described response message after DS-lite decapsulation
Described default labelling is added in IP address, and purpose IP address is revised as the IPv6 address of described Microsoft Loopback Adapter.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109951493A (en) * | 2019-03-29 | 2019-06-28 | 深圳市信锐网科技术有限公司 | A kind of network intercommunication method, device, equipment and storage medium |
| CN111614596A (en) * | 2019-02-22 | 2020-09-01 | 北京大学 | Remote equipment control method and system based on IPv6 tunnel technology |
| CN112887444A (en) * | 2021-01-19 | 2021-06-01 | 网宿科技股份有限公司 | VPN (virtual private network) request processing method, client device and system |
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| CN112887444A (en) * | 2021-01-19 | 2021-06-01 | 网宿科技股份有限公司 | VPN (virtual private network) request processing method, client device and system |
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