CN104158918B - IPv4 and IPv6 interoperability methods and system - Google Patents
IPv4 and IPv6 interoperability methods and system Download PDFInfo
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Abstract
The invention discloses a kind of IPv4 and IPv6 interoperability methods and system, methods described includes step：Data message to be converted is obtained, data message to be converted is converted into two-dimensional array forms preprocessed data bag, and the preprocessed data bag is write in shared drive to be converted；Preprocessed data bag is read from shared drive to be converted, and is that target data form forms change data bag by preprocessed data bag Parallel transformation by GPU, the change data bag is write in transformation result shared drive；Change data bag is read from transformation result shared drive, and the change data bag is converted into network data frame format and forms target data message.GPU processing is transferred into IPv4/IPv6 conversion calculating, conversion efficiency can be accelerated and reduce network congestion, lifts network service quality, and can be shared system resource, reduce the performance requirement to high speed network processor, reduce the deployment cost of system.
Description
【Technical field】
The present invention relates to network transmission technology, more particularly to a kind of IPv4 and IPv6 interoperability methods and system.
【Background technology】
With the further development and popularization of internet, the especially application such as mobile Internet, Internet of Things is fast-developing,
The problem of IPv4 (Internet Protocol version4, Internet protocol fourth edition) address space deficiency, increasingly highlights,
The problem of address resource exhaustion, seriously constrains the application and development of China and other countries internet.IPv6(Internet
Protocol version6, Internet protocol sixth version) obtained as the basic of next generation network with its distinct technical advantage
Extensive accreditation, at present many countries all actively pushing forward Next Generation Internet technology including IPv6 networks including and answering
With.Due to the IPv4 equipment of substantial amounts and user in current Internet, existing IPv4 networks can not possibly be complete in a short time
Portion upgrades to IPv6 networks, IPv4 and IPv6 networks are by long-term co-existence.IPv4 and IPv6 Interworking gateway is as IPv4/IPv6 transition
One of important application of technology, efficiently solve the problems, such as the IPv4/IPv6 interconnection and interflows of transitional environment lower network.
Current IPv4 and IPv6 Interworking gateway is formed hard using high speed network processor and high performance universal calculating platform
Part platform, the transmitting-receiving of the IPv4 and IPv6 network datas of big handling capacity is realized on high speed network processor, in high performance universal
The software of the functions such as IPv4 and IPv6 interworking protocol and application gateway, network management is run in calculating platform, so as to form
IPv4 and IPv6 Interworking gateway.
Because the interworking protocol has substantial amounts of calculating process, so needing to expend substantial amounts of computing resource, and work as
The big flow business such as modern internet access facility numerous and a large amount of voice, videos so that network traffic data drastically increases
It is long, cause IPv4 and IPv6 Interworking gateway needs to carry out substantial amounts of conversion calculating, and universal high speed network processing unit using
Serial computing mode, disposal ability are limited so that while the session number of link is restricted, and is easily caused network congestion, is caused
Network service quality reduces.Meanwhile in order to support more IPv4 and IPv6 intercommunications conversion connection numbers as far as possible and improve Service Quality
Amount, high performance CPU (Central Processing Unit, central processing unit) need to be typically used, and increase more calculate
Hardware board resource, IPv4 and IPv6 intercommunicating system deployment costs are caused to increase.
【The content of the invention】
Based on this, it is necessary to easily there is the problem of network congestion for IPv4 and IPv6 Interworking gateway in the prior art,
A kind of IPv4 and IPv6 interoperability methods and system are provided, GPU (Graphic Processing Unit, graphics process can be passed through
Device) IPv4 and IPv6 data rapid translatings quickly are realized, avoid network congestion.
A kind of IPv4 and IPv6 interoperability methods, including step：
Data message to be converted is obtained, data message to be converted is converted into two-dimensional array forms preprocessed data bag, and
The preprocessed data bag is write in shared drive to be converted；
Preprocessed data bag is read from shared drive to be converted, and is by preprocessed data bag Parallel transformation by GPU
Target data form forms change data bag, and the change data bag is write in transformation result shared drive；
Change data bag is read from transformation result shared drive, and the change data bag is converted into network data frame
Form forms target data message.
Correspondingly, the present invention also provides a kind of IPv4 and IPv6 intercommunicating systems, including：
Pretreatment module, for obtaining data message to be converted, data message to be converted is converted into two-dimensional array and formed
Preprocessed data bag, and the preprocessed data bag is write in shared drive to be converted；
First modular converter, for reading preprocessed data bag from shared drive to be converted, and it will be pre-processed by GPU
Packet Parallel transformation is that target data form forms change data bag, and the change data bag is write into transformation result shared drive
In；
Second modular converter, for reading change data bag from transformation result shared drive, and by the change data
Bag is converted to network data frame format and forms target data message.
The present invention by by data message to be converted enter row format be converted to two-dimensional array with formed GPU can handle it is pre-
Processing data bag, it is then that target data form forms change data bag by preprocessed data bag Parallel transformation by GPU, and will
In change data bag write-in GPU transformation result shared drives, finally change data is read from GPU transformation result shared drives
Bag, and the change data bag is converted into network data frame format and forms target data message.Because GPU has powerful meter
Calculation ability, therefore by the way that IPv4/IPv6 conversion calculating is transferred into GPU processing, conversion efficiency can be accelerated, reduce network congestion,
Network service quality is lifted, and IPv4/IPv6 conversions can be reduced and calculate shared system resource so that is reduced at a high speed
The performance requirement of network processing unit, reduce the deployment cost of system.
【Brief description of the drawings】
Fig. 1 is a kind of a kind of flow chart of embodiment of IPv4 and IPv6 interoperability methods of the present invention；
Fig. 2 is a kind of a kind of structured flowchart of embodiment of IPv4 and IPv6 intercommunicating systems of the present invention.
【Embodiment】
In order that the object, technical solutions and advantages of the present invention are clearer, the present invention is made below in conjunction with accompanying drawing into
One step it is described in detail.
Referring to Fig. 1, it is a kind of a kind of flow chart of embodiment of IPv4 and IPv6 interoperability methods of the present invention.
A kind of IPv4 and IPv6 interoperability methods, including step：
S101：Data message to be converted is obtained, data message to be converted is converted into two-dimensional array forms preprocessed data
Bag, and the preprocessed data bag is write in shared drive to be converted；
Because data message to be converted is one-dimensional data message format, and the treatable data format of GPU institutes is fixed length
Two-dimensional array, so, it is necessary to which data message to be converted is converted into two-dimensional array after data message to be converted is obtained
Form is to form the preprocessed data bag that GPU can be handled.To enable GPU to read preprocessed data bag, it is necessary to will be described pre-
Processing data bag writes shared drive to be converted.
S102：Preprocessed data bag is read from shared drive to be converted, and is turned preprocessed data bag parallel by GPU
It is changed to target data form and forms change data bag, the change data bag is write in transformation result shared drive；
Preprocessed data bag is read from shared drive to be converted by GPU, because GPU has parallel processing capability, because
One or at least one preprocessed data bag once can be read by GPU for this.
By the preprocessed data bag Parallel transformation it is target data form shape by GPU after reading preprocessed data bag
Into change data bag.After GUP reads preprocessed data bag, the network address of the preprocessed data bag is identified first, if net
Network address is IPv6 addresses, then its object format is the two-dimensional array form corresponding to IPv4 addresses, i.e., by preprocessed data bag
Be converted to the two-dimensional array form corresponding to IPv4 addresses.If network address is IPv4 addresses, its object format is IPv6
Two dimensional data layout corresponding to address, i.e., preprocessed data bag is converted into the two dimensional data layout corresponding to IPv6 addresses.
After GPU completes the conversion of target data form, the change data bag is write into transformation result shared drive so that
CPU can read the change data bag.
S103：Change data bag is read from transformation result shared drive, and the change data bag is converted into network
Data frame format forms target data message.
Data message due to being sent to network is one-dimensional frame format, and the change data passed through GPU to change and formed
Bag is the data format of two-dimensional array, therefore, it is necessary to by described in after reading change data bag from transformation result shared drive
Change data bag is converted to network data frame format and forms target data message.
The present invention by by data message to be converted enter row format be converted to two-dimensional array with formed GPU can handle it is pre-
Processing data bag, it is then that target data form forms change data bag by preprocessed data bag Parallel transformation by GPU, and will
In change data bag write-in GPU transformation result shared drives, finally change data is read from GPU transformation result shared drives
Bag, and the change data bag is converted into network data frame format and forms target data message.Because GPU has powerful meter
Calculation ability, therefore by the way that IPv4/IPv6 conversion calculating is transferred into GPU processing, conversion efficiency can be accelerated, reduce network congestion,
Network service quality is lifted, and IPv4/IPv6 conversions can be reduced and calculate shared system resource so that is reduced at a high speed
The performance requirement of network processing unit, reduce the deployment cost of system.
In one embodiment, by preprocessed data bag Parallel transformation it is target data by GPU in above-mentioned steps S102
Form forms the step of change data bag, may particularly include following steps：
S201：If the network address of preprocessed data bag is IPv4 addresses, IPv4 addresses are set as by private by GPU
There are IPv4 addresses, IPv6 addresses corresponding with private ip v4 addresses are obtained from default private ip v4 address pools, and will be pre-
IPv4 headings are converted into IPv6 headings corresponding with the IPv6 addresses in processing data bag；
Wherein, the private ip v4 address pools comprise at least the mapping relations of a private ip v4 address and IPv6 addresses.
If the network address of preprocessed data bag is IPv4 addresses, illustrate to wait to turn corresponding to the preprocessed data bag
It is to be sent to IPv6 networks by IPv4 networks to change data message.Now, first the network address of preprocessed data bag is set as
Private ip v4 addresses, then searched from private ip v4 address pools and obtain the IPv6 addresses corresponding to private ip v4 addresses,
IPv4 headings in preprocessed data bag are finally converted into IPv6 headings corresponding with the IPv6 addresses.
S202：If the network address of preprocessed data bag is IPv6 addresses, by GPU from private ip v4 address pools
Private ip v4 addresses corresponding with the IPv6 addresses are obtained, and IPv6 headings in preprocessed data bag are converted into and the private
There are IPv4 headings corresponding to IPv4.
If the network address of preprocessed data bag is IPv6 addresses, illustrate to wait to turn corresponding to the preprocessed data bag
It is to be sent to IPv4 networks by IPv6 networks to change data message.Now, searched from private ip v4 address pools and obtain this
Private ip v4 addresses corresponding to IPv6 addresses, then by IPv6 headings in preprocessed data bag be converted into it is described privately owned
IPv4 headings corresponding to IPv4 addresses.Wherein, the source address in the IPv4 headings is converted into private corresponding to the IPv6 addresses
There are IPv4 addresses.
Private ip v4 addresses and IPv6 addresses in private ip v4 address pools are obtained according to the network address of preprocessed data bag
Mapping relations, then IPv4 heading is converted into by IPv6 headings by GPU or is converted into IPv6 heading
IPv4 headings so that public IP v4 addresses need not be taken among IPv4 and IPv6 transfer processes, with reducing public IP v4
The use of location.
In one embodiment, data message step to be converted is obtained described in above-mentioned steps S101, specifically may include with
Lower step.
S301：Incoming data message to be converted is received, and data message to be converted is saved in receiving queue；
Incoming data message to be converted is received by physical network card or net distribution engine, then will be described to be converted
Data message is saved in receiving queue.
S302：Data message to be converted is read from receiving queue.
Need to expend the regular hour due to performing IPv4/IPv6 intercommunication transfer processes, it is big when having in the short time in network
When the data message to be converted of amount needs conversion, because GPU has little time to change, so as to packet loss phenomenon occur so that Network Packet Loss
Rate raises so that network transmission quality reduces.By the way that data message to be converted is saved in receiving queue, then again from reception
Data message to be converted is read in queue, packet loss phenomenon can be reduced, ensures network transmission quality.
In one embodiment, data message to be converted is converted into two-dimensional array in above-mentioned steps S101 and forms pretreatment
Packet step, may particularly include following steps：
S401：Data message to be converted is split according to default byte length；
By GPU treatable data format be fixed length two-dimensional array, so the byte length is the two dimension
The line width of array, for example, the treatable data format of a certain GPU institutes is that line width is 16 bytes, arrange the two of a height of 100 bytes
Dimension group, then default byte length is then 16 bytes.After the byte length is determined, it will be treated according to the byte length
Change data message is divided into some sections, for example, a certain data message length to be converted is 158 bytes, according to 16 bytes
It is split, then the data message to be converted can be divided into 10 sections.
S402：Data message to be converted after segmentation is spliced into composition two-dimensional array in order, forms preprocessed data bag.
By each section of the data message to be converted after segmentation, as the row of two-dimensional array, splicing composition is two-dimentional in order
Array is to form preprocessed data bag.For example, using the first paragraph of the data message to be converted after segmentation as the of two-dimensional array
A line, second row of the second segment as two-dimensional array, the like.
By the way that pending data message is split according to default byte length, and splicing composition two-dimensional array in sequence
Form preprocessed data bag so that GPU can directly carry out IPv4/IPv6 conversions to preprocessed data bag and calculate, and mitigate GPU
Work load.
Referring to Fig. 2, it is a kind of a kind of structured flowchart of embodiment of IPv4 and IPv6 intercommunicating systems of the present invention.
A kind of Pv4 and IPv6 intercommunication gateway systems, including：
Pretreatment module 201, for obtaining data message to be converted, data message to be converted is converted into two-dimensional array shape
Write into preprocessed data bag, and by the preprocessed data bag in shared drive to be converted；
Because data message to be converted is one-dimensional data message format, and the treatable data format of GPU institutes is fixed length
Two-dimensional array, so pretreatment module 201 after data message to be converted is obtained, it is necessary to which data message to be converted is changed
Into the form of two-dimensional array to form the preprocessed data bag that GPU can be handled.To enable GPU to read preprocessed data bag,
Pretreatment module 201 needs the preprocessed data bag writing shared drive to be converted.
First modular converter 202, for reading preprocessed data bag from shared drive to be converted, and will be pre- by GPU
Processing data bag Parallel transformation is that target data form forms change data bag, and change data bag write-in transformation result is shared
In internal memory；
Preprocessed data bag is read from shared drive to be converted by GPU, because GPU has parallel processing capability, because
One or at least one preprocessed data bag once can be read by GPU for this.
After reading preprocessed data bag, the preprocessed data bag Parallel transformation is by the first modular converter 202 by GPU
Target data form forms change data bag.After first modular converter 202 reads preprocessed data bag by GUP, identify first
The network address of the preprocessed data bag, if network address is IPv6 addresses, its object format is right for IPv4 addresses
The two-dimensional array form answered, i.e. the first modular converter 202 are converted to preprocessed data bag corresponding to IPv4 addresses by GPU
Two-dimensional array form.If network address is IPv4 addresses, its object format is the 2-D data lattice corresponding to IPv6 addresses
Formula, i.e. the first modular converter 202 are converted to preprocessed data bag by GPU the two dimensional data layout corresponding to IPv6 addresses.
After GPU completes the conversion of target data form, the change data bag is write transformation result by the first modular converter 202
Shared drive so that CPU can read the change data bag.
Second modular converter 203, for reading change data bag from transformation result shared drive, and by the conversion number
Network data frame format, which is converted to, according to bag forms target data message.
Data message due to being sent to network is one-dimensional frame format, and the change data passed through GPU to change and formed
Bag is the data format of two-dimensional array, therefore, it is necessary to second turn after reading change data bag from transformation result shared drive
The change data bag is converted to network data frame format and forms target data message by mold changing block 203.
Data message to be converted is entered row format by pretreatment module 201 and is converted to two-dimensional array to be formed by the present invention
The preprocessed data bag that GPU can be handled, then the first modular converter 202 be by preprocessed data bag Parallel transformation by GPU
Target data form forms change data bag, and the change data bag is write in GPU transformation result shared drives, the second last
Modular converter 203 reads change data bag from GPU transformation result shared drives, and the change data bag is converted into network
Data frame format forms target data message.Because GPU has powerful computing capability, therefore the first modular converter 202 passes through
GPU processing is transferred into IPv4/IPv6 conversion calculating, conversion efficiency can be accelerated, reduce network congestion, lift network service matter
Amount, and IPv4/IPv6 conversions can be reduced and calculate shared system resource so that reduce the property to high speed network processor
It can require, reduce the deployment cost of system.
In one embodiment, above-mentioned first modular converter 202, may particularly include following submodule：
First address conversion module, will by GPU if the network address for preprocessed data bag is IPv4 addresses
IPv4 addresses are set as private ip v4 addresses, are obtained from default private ip v4 address pools corresponding with private ip v4 addresses
IPv6 addresses, and IPv4 headings in preprocessed data bag are converted into IPv6 headings corresponding with the IPv6 addresses；
Wherein, the private ip v4 address pools comprise at least the mapping relations of a private ip v4 address and IPv6 addresses.
If the network address of preprocessed data bag is IPv4 addresses, illustrate to wait to turn corresponding to the preprocessed data bag
It is to be sent to IPv6 networks by IPv4 networks to change data message.Now, the first address conversion module is first by preprocessed data bag
Network address be set as private ip v4 addresses, then the first address conversion module is searched and obtained from private ip v4 address pools
IPv6 addresses corresponding to private ip v4 addresses, last first address conversion module is by IPv4 headings in preprocessed data bag
It is converted into IPv6 headings corresponding with the IPv6 addresses.
Second address conversion module, if the network address for preprocessed data bag is IPv6 addresses, by GPU from
Private ip v4 addresses corresponding with the IPv6 addresses are obtained in default private ip v4 address pools, and by preprocessed data bag
IPv6 headings are converted into IPv4 headings corresponding with the private ip v4.
If the network address of preprocessed data bag is IPv6 addresses, illustrate to wait to turn corresponding to the preprocessed data bag
It is to be sent to IPv4 networks by IPv6 networks to change data message.Now, the second address conversion module is from private ip v4 address pools
Middle search simultaneously obtains the private ip v4 addresses corresponding to the IPv6 addresses, and then the second address conversion module is by preprocessed data bag
Middle IPv6 headings are converted into IPv4 headings corresponding with the private ip v4 addresses.Wherein, the source in the IPv4 headings
Private ip v4 addresses corresponding to address conversion into the IPv6 addresses.
Private ip v4 addresses and IPv6 addresses in private ip v4 address pools are obtained according to the network address of preprocessed data bag
Mapping relations, IPv4 heading is converted into by the first address conversion module or the second address conversion module by GPU again
IPv6 heading is converted into IPv4 headings by IPv6 headings so that need not among IPv4 and IPv6 transfer processes
Public IP v4 addresses are taken, reduce the use of public IP v4 addresses.
In one embodiment, above-mentioned pretreatment module 201 specifically may include following submodule.
Receiving module, for receiving incoming data message to be converted, and data message to be converted is saved in and receives team
In row；
Receiving module receives incoming data message to be converted by physical network card or net distribution engine, then receives
The data message to be converted is saved in receiving queue by module.
Read module, for reading data message to be converted from receiving queue.
Need to expend the regular hour due to performing IPv4/IPv6 intercommunication transfer processes, it is big when having in the short time in network
When the data message to be converted of amount needs conversion, because GPU has little time to change, so as to packet loss phenomenon occur so that Network Packet Loss
Rate raises so that network transmission quality reduces.Data message to be converted is saved in receiving queue by receiving module, then
Read data message to be converted from receiving queue by read module again, packet loss phenomenon can be reduced, ensure network transmission matter
Amount.
In one embodiment, above-mentioned pretreatment module 201 may include following submodule：
Split module, for being split data message to be converted according to default byte length；
By GPU treatable data format be fixed length two-dimensional array, so the byte length is the two dimension
The line width of array, for example, the treatable data format of a certain GPU institutes is that line width is 16 bytes, arrange the two of a height of 100 bytes
Dimension group, default byte length are then 16 bytes.After the byte length is determined, segmentation module is according to the byte long
Data message to be converted is divided into some sections by degree, for example, a certain data message length to be converted is 158 bytes, splits mould
Block is split according to 16 bytes to it, then the data message to be converted can be divided into 10 sections.
Concatenation module, for the data message to be converted after segmentation to be spliced into composition two-dimensional array in order, form pre- place
Manage packet.
Concatenation module as the row of two-dimensional array, splices each section of the data message to be converted after segmentation in order
Two-dimensional array is formed to form preprocessed data bag.For example, concatenation module is by the first paragraph of the data message to be converted after segmentation
As the first row of two-dimensional array, second row of the second segment as two-dimensional array, the like.
Pending data message is split according to default byte length by splitting module, concatenation module is spelled in sequence
Connect composition two-dimensional array and form preprocessed data bag so that GPU can directly carry out IPv4/IPv6 to preprocessed data bag and turn
Calculating is changed, mitigates GPU work load.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (6)
1. a kind of IPv4 and IPv6 interoperability methods, it is characterised in that including step：
Data message to be converted is obtained, data message to be converted is converted into two-dimensional array forms preprocessed data bag, and by institute
Preprocessed data bag is stated to write in shared drive to be converted；Data message to be converted is one-dimensional data message format；
Preprocessed data bag is read from shared drive to be converted, and is target by preprocessed data bag Parallel transformation by GPU
Data format forms change data bag, and the change data bag is write in transformation result shared drive；It is described to be shared to be converted
Preprocessed data bag is read in internal memory, including：At least two pretreatment numbers are once read from shared drive to be converted by GPU
According to bag；
Change data bag is read from transformation result shared drive, and the change data bag is converted into network data frame format
Form target data message；
It is described that preprocessed data bag Parallel transformation is formed by change data bag step, specific bag for target data form by GPU
Include：
If the network address of preprocessed data bag is IPv4 addresses, by GPU by IPv4 addresses with being set as private ip v4
Location, obtains corresponding with private ip v4 addresses IPv6 addresses from default private ip v4 address pools, and by preprocessed data
IPv4 headings are converted into IPv6 headings corresponding with the IPv6 addresses in bag；Wherein, the private ip v4 address pools are extremely
Include the mapping relations of a private ip v4 address and IPv6 addresses less；
If the network address of preprocessed data bag is IPv6 addresses, obtained by GPU from default private ip v4 address pools
Take private ip v4 addresses corresponding with the IPv6 addresses, by IPv6 headings in preprocessed data bag be converted into it is described privately owned
IPv4 headings corresponding to IPv4.
2. IPv4 and IPv6 interoperability methods according to claim 1, it is characterised in that described to obtain data message to be converted
Step, specifically include：
Incoming data message to be converted is received, and data message to be converted is saved in receiving queue；
Data message to be converted is read from receiving queue.
3. IPv4 and IPv6 interoperability methods according to claim 1, it is characterised in that described to turn data message to be converted
Change two-dimensional array into and form preprocessed data bag step, specifically include：
Data message to be converted is split according to default byte length；
Data message to be converted after segmentation is spliced into composition two-dimensional array in order, forms preprocessed data bag.
A kind of 4. IPv4 and IPv6 intercommunicating systems, it is characterised in that including：
Pretreatment module, for obtaining data message to be converted, data message to be converted is converted into two-dimensional array and forms pre- place
Packet is managed, and the preprocessed data bag is write in shared drive to be converted；Data message to be converted is one-dimensional data
Message format；
First modular converter, for reading preprocessed data bag from shared drive to be converted, and by GPU by preprocessed data
Bag Parallel transformation is that target data form forms change data bag, and the change data bag is write in transformation result shared drive；
The reading preprocessed data bag from shared drive to be converted, including：Once read from shared drive to be converted by GPU
At least two preprocessed data bags；
Second modular converter, turn for reading change data bag from transformation result shared drive, and by the change data bag
It is changed to network data frame format and forms target data message；
First modular converter specifically includes：
First address conversion module, if the network address for preprocessed data bag is IPv4 addresses, by GPU by IPv4
Address is set as private ip v4 addresses, and IPv6 corresponding with private ip v4 addresses is obtained from default private ip v4 address pools
Address, and IPv4 headings in preprocessed data bag are converted into IPv6 headings corresponding with the IPv6 addresses；Wherein, institute
State mapping relations of the private ip v4 address pools including at least a private ip v4 address and IPv6 addresses；
Second address conversion module, if the network address for preprocessed data bag is IPv6 addresses, by GPU from default
Private ip v4 address pools in obtain corresponding with IPv6 addresses private ip v4 addresses, and IPv6 in preprocessed data bag is reported
Literary head is converted into IPv4 headings corresponding with the private ip v4.
5. IPv4 and IPv6 intercommunicating systems according to claim 4, it is characterised in that the pretreatment module includes：
Receiving module, it is saved in for receiving incoming data message to be converted, and by data message to be converted in receiving queue；
Read module, for reading data message to be converted from receiving queue.
6. IPv4 and IPv6 intercommunicating systems according to claim 4, it is characterised in that the pretreatment module also includes：
Split module, for being split data message to be converted according to default byte length；
Concatenation module, for the data message to be converted after segmentation to be spliced into composition two-dimensional array in order, form pretreatment number
According to bag.
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