CN107454210A - Communication means and system - Google Patents
Communication means and system Download PDFInfo
- Publication number
- CN107454210A CN107454210A CN201710830904.0A CN201710830904A CN107454210A CN 107454210 A CN107454210 A CN 107454210A CN 201710830904 A CN201710830904 A CN 201710830904A CN 107454210 A CN107454210 A CN 107454210A
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- Prior art keywords
- message
- server
- public network
- client
- data
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/09—Mapping addresses
- H04L61/25—Mapping addresses of the same type
- H04L61/2503—Translation of Internet protocol [IP] addresses
- H04L61/2514—Translation of Internet protocol [IP] addresses between local and global IP addresses
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/09—Mapping addresses
- H04L61/25—Mapping addresses of the same type
- H04L61/2503—Translation of Internet protocol [IP] addresses
- H04L61/256—NAT traversal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/55—Push-based network services
Abstract
The present invention provides a kind of communication means and system.The system includes interior net system, public network subsystem and NAT device, and interior net system is connected by NAT device with public network subsystem communication.Wherein, public network subsystem includes at least one public network client, and interior net system includes at least one server.Methods described includes：Invitation message is pushed at least one public network client by server by NAT device；Public network client receives invitation message, and sends the first log-on message to server by NAT device according to invitation message, is communicated with being established with server.Thus, when being located at Intranet in server, and not possessing public network address, public network client is established with server according to the invitation message of server and communicated, and situation about can not be connected so as to avoid public network client with server occurs.
Description
Technical field
The present invention relates to communication technical field, in particular to a kind of communication means and system.
Background technology
Message queue mechanism is widely used in internet works software at present, supports large-scale distributed message distribution machine
System.Distributed message distribution mechanisms need information client side to be connectable to message server.Information client side connection message takes
The mode of business device has：IP address and port are announced by message server, it is desirable to which message server possesses public network address；Or
It is located at same Intranet with information client side.But network topology and network environment are limited to, when message server is located at Intranet,
When also not possessing public network address, the information client side positioned at distal end just cannot connect to message server, no normal direction messenger service
Device is registered.Thus, also allowing for the information client side of distal end can not communicate with message server.
The content of the invention
In order to overcome above-mentioned deficiency of the prior art, the technical problems to be solved by the invention are to provide a kind of communication party
Method and system, it can make way for the outer net client of outer net and be connected to positioned at Intranet and do not possess the server of public network address.
The embodiment of the present invention provides a kind of communication means, and applied to communication system, the system includes interior net system, public affairs
Net system and NAT device, the interior net system are connected by the NAT device with the public network subsystem communication, wherein,
The public network subsystem includes at least one public network client, and the interior net system includes at least one server, the side
Method includes：
Invitation message is pushed at least one public network client by the server by NAT device；
The public network client receives the invitation message, and according to the invitation message by the NAT device to institute
State server and send the first log-on message, communicated with being established with the server.
The embodiment of the present invention also provides a kind of communication system, and the system includes interior net system, public network subsystem and NAT
Equipment, the interior net system are connected by the NAT device with the public network subsystem communication, wherein, the public network subsystem
System includes at least one public network client, and the interior net system includes at least one server,
The server is used to invitation message is pushed at least one public network client by NAT device；
The public network client is used to receive the invitation message, and passes through the NAT device according to the invitation message
The first log-on message is sent to the server, is communicated with being established with the server.
In terms of existing technologies, the invention has the advantages that：
The embodiment of the present invention provides a kind of communication means and system.Methods described is applied to the system.The system bag
Interior net system, public network subsystem and NAT device are included, the interior net system passes through the NAT device and the public network subsystem
System communication connection.Wherein, the public network subsystem includes at least one public network client, and the interior net system includes at least one
Individual server.Invitation message is pushed at least one public network client by the server by NAT device.The public network client
End sends the first note by the NAT device after the invitation message is received, according to the invitation message to the server
Volume information, to complete to register, communicated so as to be established with the server.Thus, it is located at Intranet in server, and does not possess public network
During address, public network client is established with server according to the invitation message of server and communicated, so as to avoid public network client not
Situation about can be connected with server occurs.
To enable the above-mentioned purpose of invention, feature and advantage to become apparent, present pre-ferred embodiments cited below particularly, and
Accompanying drawing appended by cooperation, is described in detail below.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by embodiment it is required use it is attached
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore be not construed as pair
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other related accompanying drawings.
Fig. 1 is the block diagram for the communication system that present pre-ferred embodiments provide.
Fig. 2 is the block diagram of server in Fig. 1.
Fig. 3 is one of schematic flow sheet of communication means that present pre-ferred embodiments provide.
Fig. 4 is the two of the schematic flow sheet for the communication means that present pre-ferred embodiments provide.
Fig. 5 is the three of the schematic flow sheet for the communication means that present pre-ferred embodiments provide.
Icon：10- communication systems；100- servers；110- memories；120- storage controls；130- processors；200-
NAT device；300- public network clients；400- Intranet clients.
Embodiment
Below in conjunction with accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Ground describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Generally exist
The component of the embodiment of the present invention described and illustrated in accompanying drawing can be configured to arrange and design with a variety of herein.Cause
This, the detailed description of the embodiments of the invention to providing in the accompanying drawings is not intended to limit claimed invention below
Scope, but it is merely representative of the selected embodiment of the present invention.Based on embodiments of the invention, those skilled in the art are not doing
The every other embodiment obtained on the premise of going out creative work, belongs to the scope of protection of the invention.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent accompanying drawing in individual accompanying drawing.Meanwhile the present invention's
In description, term " first ", " second " etc. are only used for distinguishing description, and it is not intended that instruction or hint relative importance.
Below in conjunction with the accompanying drawings, some embodiments of the present invention are elaborated.It is following in the case where not conflicting
Feature in embodiment and embodiment can be mutually combined.
Fig. 1 is refer to, Fig. 1 is the block diagram for the communication system 10 that present pre-ferred embodiments provide.The communication
System 10 can include interior net system, public network subsystem and NAT device 200.The interior net system passes through the NAT device
200 are connected with the public network subsystem communication, so as to realize the data interaction of interior net system and public network subsystem.
Wherein, the public network subsystem includes at least one public network client 300, and the interior net system includes at least one
Individual server 100 (server 100 is only shown in Fig. 1).Public network client 300, server 100 pass through the NAT device
200 are communicated.The quantity of server 100 after the public network client 300, NAT device 200 respectively can be according to actual feelings
Condition is set.
Fig. 2 is refer to, Fig. 2 is the block diagram of server 100 in Fig. 1.The service 100 can be stand-alone service
Device or the integrating server being made up of multiple separate servers.The server 100 can include memory 110, deposit
Store up controller 120 and processor 130.
Directly or indirectly it is electrically connected between 130 each element of the memory 110, storage control 120 and processor,
To realize the transmission of data or interaction.For example, these elements can pass through one or more communication bus or signal wire between each other
Realize and be electrically connected with.Be stored with memory 110 at least one can be stored in institute in the form of software or firmware (firmware)
State the software function module in memory 110.The processor 130 is stored in the software program in memory 110 by operation
And module, so as to perform various function application and data processing.
Wherein, the memory 110 may be, but not limited to, random access memory (Random Access
Memory, RAM), read-only storage (Read Only Memory, ROM), programmable read only memory (Programmable
Read-Only Memory, PROM), erasable read-only memory (Erasable Programmable Read-Only
Memory, EPROM), electricallyerasable ROM (EEROM) (Electric Erasable Programmable Read-Only
Memory, EEPROM) etc..Wherein, memory 110 is used for storage program, the processor 130 after execute instruction is received,
Perform described program.The processor 130 and other access of possible component to memory 110 can be in the storage controls
Carried out under the control of device 120.
The processor 130 is probably a kind of IC chip, has the disposal ability of signal.Above-mentioned processor
130 can be general processor, including central processing unit (Central Processing Unit, CPU), network processing unit
(Network Processor, NP) etc..It can also be digital signal processor (DSP), application specific integrated circuit (ASIC), scene
Programmable gate array (FPGA) either other PLDs, discrete gate or transistor logic, discrete hardware group
Part.It can realize or perform disclosed each method, step and the logic diagram in the embodiment of the present invention.General processor can be with
It is microprocessor or the processor can also be any conventional processor etc..
It is appreciated that structure shown in Fig. 1 is only to illustrate, server 100 may also include than shown in Fig. 1 more or more
Few component, or there is the configuration different from shown in Fig. 1.Each component shown in Fig. 1 can use hardware, software or its group
Close and realize.
NAT (Network Address Translation, the network address translation) equipment 200 can include exchanging
Machine, router etc..NAT is an IETF (Internet Engineering Task Force, Internet engineering task force)
Standard, it is allowed to which an integrated model occurs on internet with a public IP (Internet Protocol) address.Also
It is to say, NAT is a kind of technology for internal private network address (IP address) being translated into legitimate network IP address.
The public network client 300 may be, but not limited to, server, tablet personal computer, desktop computer etc..
Fig. 3 is refer to, Fig. 3 is one of schematic flow sheet of communication means that present pre-ferred embodiments provide.The side
Method is applied to the communication system 10.The communication system 10 includes interior net system, public network subsystem and NAT device 200, institute
Interior net system is stated to be connected with the public network subsystem communication by the NAT device 200.Wherein, the public network subsystem bag
At least one public network client 300 is included, the interior net system includes at least one server 100.Below to communication means
Idiographic flow is described in detail.
Invitation message is pushed at least one public network client by step S110, the server 100 by NAT device 200
End 300.
In the present embodiment, after being located at the NAT device 200 due to the server 100, that is, in Intranet,
And do not have public network address, therefore, the public network client 300 actively can not send log-on message to server 100.This
In the case of, the active of server 100 pushes invitation to the public network client 300 on public network by the NAT device 200 and disappeared
Breath.
Specifically, the invitation message is sent to the NAT device 200 by the server 100.Wherein, the service
The invitation message that device 100 is sent to the NAT device 200 includes source IP address, destination address and destination interface, IP now
Address is internal address, and destination address is the address that public network client 300 is externally announced, and destination interface is public network client 300
The port externally announced.The internal address is substituted for public address by the NAT device 200, further according to destination address and purpose
Invitation message Jing Guo address conversion is sent at least one public network client 300 by port.
Step S120, the public network client 300 receive the invitation message, and are passed through according to the invitation message described
NAT device 200 sends the first log-on message to the server 100, is communicated with being established with the server 100.
In this embodiment, the invitation message includes IP address and port numbers.The public network client 300 receives described
After invitation message, the invitation message is parsed, obtains source IP address and source port number.The public network client 300 can be with
Log-on message is sent to the server 100 by the NAT device 200 according to the source IP address and source port number, with complete
Into registration, so as to establish the communication of the public network client 300 and server 100.
Wherein, after the NAT device 200 receives the first log-on message that the public network client 300 is sent, this is registered
Public network address in information is substituted for internal address, then first log-on message is sent into the server 100.
Fig. 4 is refer to, Fig. 4 is the two of the schematic flow sheet for the communication means that present pre-ferred embodiments provide.The side
Method can also include step S130.
Step S130, the timing of server 100 sends keep-alive message to public network client 300, to refresh the public network
Client 300 arrives the path status of the server 100.
In the present embodiment, because intermediate firewall can delete silent path, therefore, the timing of server 100 passes through
The NAT device 200 sends keep-alive message to public network client 300, and the service is arrived so as to refresh the public network client 300
The path status of device 100, path is avoided to be deleted.
Refer to Fig. 1 and Fig. 5, Fig. 5 be the communication means that present pre-ferred embodiments provide schematic flow sheet three.Institute
Stating interior net system also includes at least one Intranet client 400.The public network client 300 may be, but not limited to, service
Device, tablet personal computer, desktop computer etc..Methods described can also include step S101.
Step S101, the Intranet client 400 sends the second log-on message to the server 100, with the service
Device 100 establishes communication.
In the present embodiment, because Intranet client 400 and server 100 are respectively positioned on Intranet, therefore the Intranet client
End 400 can directly receive the invitation message of the push of server 100.The Intranet client 400 then can be according to the invitation
Second log-on message is sent to the server 100 by message, to complete to register, is communicated so as to be realized with the server 100.
Thus, the public network client 300 can be communicated with Intranet client 400 by server 100 and NAT device 200.
Referring once again to Fig. 5, after step S120, methods described can also include step S140 and step S150.
Step S140, the public network client 300 send data to the server 100 through the NAT device 200 and disappeared
Breath.
Step S150, the server 100 receives the data-message sent, and analyzes the type of the data-message of reception,
And the data-message of reception is sent to according to the type of data-message and each Intranet client 400 type of message interested
Corresponding Intranet client 400.
In the present embodiment, second log-on message includes the Intranet client 400 type of message interested.It is described
After server 100 receives the data-message that public network client 300 is sent by NAT device 200, the data-message is divided
Analysis, obtains the type of data-message.The server 100 by the type of the data-message with preserve registered Intranet client
Hold 400 type of messages interested to be compared, obtain corresponding with data-message Intranet client 400, and by the data
Message is sent to the Intranet client 400.
Referring once again to Fig. 5, after step S120, methods described can also include step S160.
Step S160, the server 100 receives the data-message that Intranet client 400 is sent, and the data are disappeared
Breath is sent to public network client 300 corresponding with the type of the data-message by the NAT device 200.
In the present embodiment, first log-on message includes the public network client 300 type of message interested.Inside
When net client 400 needs to send messages to public network client 300, Intranet client 400 sends out the data-message for needing to send
The server 100 is delivered to, the server 100 analyzes the type for the data-message that each Intranet client 400 is sent, and root
It is compared according to the type of the data-message and the registered public network client 300 of preservation type of message interested, so as to
Data-message is sent to corresponding public network client 300 through NAT device 200.
The server 100 can be deployed on user side convergence device, to multiple reported datas of public network client 300,
And receive configuration message and the management instruction of the transmission of public network client 300.If after NAT device 200 the network equipment (such as
Intranet client 400) server 100 is connectable to, register message interested, the network equipment after NAT device 200 is just
The data reported can be sent to server 100, by the unification of server 100 by data distribution to the public network to feedback
Client 300, and the network equipment for uploading data need not obtain the quantity for the public network client 300 for being related to the data.In addition,
Control command can be sent to convergence device by high in the clouds centralized management equipment, and the multiple managed devices of lower floor are distributed to by convergence device
(such as Intranet client 400).In this way, the design of whole system can be greatly simplified.
Referring once again to Fig. 1, the present embodiment also provides a kind of communication system 10.The communication system 10 includes Intranet subsystem
System, public network subsystem and NAT device 200, the interior net system are led to by the NAT device 200 and the public network subsystem
Letter connection.Wherein, the public network subsystem includes at least one public network client 300, and the interior net system includes at least one
Individual server 100.
The server 100 is used to invitation message is pushed at least one public network client 300 by NAT device 200.
The public network client 300 is used to receive the invitation message, and is set according to the invitation message by the NAT
Standby 200 send the first log-on message to the server 100, are communicated with being established with the server 100.
In the present embodiment, the server 100 is additionally operable to timing and sends keep-alive message to public network client 300, with brush
The new public network client 300 arrives the path status of the server 100.
In the present embodiment, the interior net system also includes at least one Intranet client 400,
The public network client 300 is additionally operable to send data-message to the server 100 through the NAT device 200；
The server 100 is additionally operable to receive the data-message sent, and analyzes the type of the data-message of reception, and root
The data-message of reception is sent to correspondingly according to the type of data-message and each Intranet client 400 type of message interested
Intranet client 400.
In the present embodiment, first log-on message includes the public network client 300 type of message interested,
The server 100 is additionally operable to receive the data-message that Intranet client 400 is sent, and the data-message is led to
Cross the NAT device 200 and be sent to public network client 300 corresponding with the type of the data-message.
In summary, the present invention provides a kind of communication means and system.Methods described is applied to the system.The system
Including interior net system, public network subsystem and NAT device, the interior net system passes through the NAT device and public network
System communicates to connect.Wherein, the public network subsystem includes at least one public network client, and the interior net system is included at least
One server.Invitation message is pushed at least one public network client by the server by NAT device.The public network visitor
Family end sends first by the NAT device after the invitation message is received, according to the invitation message to the server
Log-on message, to complete to register, communicated so as to be established with the server.Thus, it is located at Intranet in server, and does not possess public affairs
During net address, public network client is established with server according to the invitation message of server and communicated, so as to avoid public network client
Situation about can not be connected with server occurs.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (10)
1. a kind of communication means, it is characterised in that applied to communication system, the system includes interior net system, public network subsystem
System and NAT device, the interior net system are connected by the NAT device with the public network subsystem communication, wherein, the public affairs
Net system includes at least one public network client, and the interior net system includes at least one server, and methods described includes：
Invitation message is pushed at least one public network client by the server by NAT device；
The public network client receives the invitation message, and according to the invitation message by the NAT device to the clothes
Business device sends the first log-on message, is communicated with being established with the server.
2. according to the method for claim 1, it is characterised in that the invitation message includes IP address and port numbers, described
Included according to the invitation message by way of the NAT device sends log-on message to the server：
Log-on message is sent to the server by the NAT device according to the IP address and port numbers.
3. according to the method for claim 1, it is characterised in that the invitation message is received in the public network client, and
First log-on message is sent to the server by the NAT device according to the invitation message, to be built with the server
After the step of vertical communication, methods described also includes：
The server timing sends keep-alive message to public network client, to refresh the public network client to the server
Path status.
4. according to the method for claim 1, it is characterised in that the interior net system also includes at least one Intranet client
End, methods described also include：
The Intranet client sends the second log-on message to the server, establishes and communicates with the server.
5. according to the method for claim 4, it is characterised in that it is emerging that second log-on message includes the Intranet client sense
The type of message of interest, the invitation message is received in the public network client, and set according to the invitation message by the NAT
Standby to send the first log-on message to the server, after establishing the step of communicating with the server, methods described is also wrapped
Include：
The public network client sends data-message through the NAT device to the server；
The server receives the data-message sent, and analyzes the type of the data-message of reception, and according to data-message
Type and each Intranet client type of message interested by the data-message of reception be sent to corresponding to Intranet client.
6. according to the method for claim 5, it is characterised in that it is emerging that first log-on message includes the public network client sense
The type of message of interest, methods described also include：
The server receives the data-message that Intranet client is sent, and the data-message is sent out by the NAT device
Give public network client corresponding with the type of the data-message.
7. a kind of communication system, it is characterised in that the system includes interior net system, public network subsystem and NAT device, described
Interior net system is connected by the NAT device with the public network subsystem communication, wherein, the public network subsystem is included at least
One public network client, the interior net system include at least one server,
The server is used to invitation message is pushed at least one public network client by NAT device；
The public network client is used to receive the invitation message, and according to the invitation message by the NAT device to institute
State server and send the first log-on message, communicated with being established with the server.
8. system according to claim 7, it is characterised in that
The server is additionally operable to timing and sends keep-alive message to public network client, to refresh the public network client to the clothes
The path status of business device.
9. system according to claim 7, it is characterised in that the interior net system also includes at least one Intranet client
End,
The public network client is additionally operable to send data-message to the server through the NAT device；
The server is additionally operable to receive the data-message sent, and analyzes the type of the data-message of reception, and according to data
The type of message and each Intranet client type of message interested by the data-message of reception be sent to corresponding in netter
Family end.
10. system according to claim 9, it is characterised in that first log-on message includes the public network client sense
The type of message of interest,
The server is additionally operable to receive the data-message that Intranet client is sent, and the data-message is passed through into the NAT
Equipment is sent to public network client corresponding with the type of the data-message.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710830904.0A CN107454210B (en) | 2017-09-15 | 2017-09-15 | Communication method and system |
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|---|---|---|---|
| CN201710830904.0A CN107454210B (en) | 2017-09-15 | 2017-09-15 | Communication method and system |
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| CN107454210B CN107454210B (en) | 2020-12-01 |
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| CN201710830904.0A Active CN107454210B (en) | 2017-09-15 | 2017-09-15 | Communication method and system |
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| CN107454210B (en) | 2020-12-01 |
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