CN1516415A - Decimal number gateway - Google Patents
Decimal number gateway Download PDFInfo
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- CN1516415A CN1516415A CNA031148158A CN03114815A CN1516415A CN 1516415 A CN1516415 A CN 1516415A CN A031148158 A CNA031148158 A CN A031148158A CN 03114815 A CN03114815 A CN 03114815A CN 1516415 A CN1516415 A CN 1516415A
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Abstract
The invention provides a decimal gateway, which is a device for realizing interconnection of network. It is made up of decimal internet root realm name DDNS1which can realize IP address conversion, subnet inner self-definition, allocating network address freely, and communication between inner and outer part, and DDNS2 which has decimal internet realm name and the one of memory and IP address, and static NAT1, dynamic NAT2 which have address conversion and at least a inner port, a outer address. It is constructed on base of digital realm system device and current TCP/IP protocol IPV4 version, and it is based on IP address length between 1-1024 bits.
Description
Technical field
Decimal number gateway (DDG) is the internetworking equipment that a kind of and existing Internet realizes interconnection and interflow, make up based on digital domain system device (DDNS) and existing ICP/IP protocol IPV4 version especially, be based upon the IP address size at 1～1024, realize the internetworking equipment that interconnects as the separate network on IPV6, the IPV9 agreement basis and existing Internet.
Background technology
Existing Internet procotol is the ICP/IP protocol (being IPV4) that proposes in the seventies later stage in 20th century, and the subject matter that has come out through the practices in more than 20 years has:
1.IP address anxiety.Existing internet-ip address is by U.S.'s control, distribution, management.Given this reason adopts the IPV4 private net address in present most local area network (LAN)s.
2. there is not service quality (QOS).This causes the multimedia of many current popular, and voice can not real-time Transmission.
3. safety inadequately.Existing IPV4 lacks IPSec mechanism etc. to transfer of data.
For solving the nervous problem in IPV4 address, aspect Internet technology, the technical scheme of multiple solution has appearred.Wherein, many employings is a kind of static address conversion method now, and promptly local area network (LAN) only accounts for the method for a public network address, and its inner network address adopts private net address, as: 10.0.0.0.Another kind is an IP public network address dynamic assignment.These methods all adopt NAT (network address translation) technology, are about to the local area network (LAN) client address and convert private net address to.As everyone knows, private net address has only 1,700 ten thousand, does not still satisfy the demand of numerous netizens' personalization of rapid growth.
And at present, based on each university, the Internet of new generation that domestic research is followed the tracks of, its procotol (TCP/IP) adopts the IPV6 version, though its IP address assignment is out of question, but especially to need be with hardware physical address (abbreviation MAC Address) binding, fields such as the mobile communication of fast development, then still sense is not enough.So far IPV6 does not reach the practical stage yet, and IPV6 network and IPV4 network can't interconnect, and promptly the client of IPV4 client and IPV6 can not intercommunication, and these have all seriously restricted further developing of internet.
Summary of the invention
As previously mentioned, decimal number gateway (DDG) is exactly for solving the serious nervous problem in IP address in the existing Internet net, and then make up one and be different from existing with the IPV4 protocol network, employing is with a kind of new ICP/IP protocol of decimal number algorithm and decimal number text representation, its IP address size is at 1～1024---sets up as the IPV9 agreement, independent, controlled, safe, the internet of independent intellectual property right, autonomous distributing IP address and the internetworking equipment that existing Internet realizes interconnection and interflow are arranged.
To IPV6 a problem that seamlessly transits is arranged as IPV4, IPV9 also has a transitional problem promptly progressively to set up a compatible transitional period at itself and existing IPV4 network.
The present invention adopts the conversion of the incompatible IP of finishing of the set of systems address of digital domain resolution system (DDNS) and NAT technology (NAT), thereby realizes the basic technique principle of mutual visit between network.In transitional period, realize the interconnection and interflow of IPV9 protocol network and existing IPV4 protocol network at IPV9 by the said system combination especially.
The present invention is intended to the IP address size more than 32, and in the transitional period, home address can be distributed according to global address as IPV9 (the IP address size is at 1～1024), realizes that internal host can communicate exchanging visit with external host.When internal host requires the visit external address,, visit thereby realization is mutual by the incompatible conversion of finishing the address of set of systems that DDNS cooperates with NAT; Otherwise, when external host requires the visit home address, by self-defining---decimal number gateway protocol 5 is finished map addresses through the DDNS and the NAT of outside, realizes the purpose of two-way visit.
The operation principle of decimal number gateway system of the present invention can be passed through " address resolution, flow path switch figure "---accompanying drawing 1, in conjunction with following table---and " domain name mapping, translation function tabulation " learnt.
Domain name mapping, translation function tabulation
DDNS
1, DDNS
2And NAT
1, NAT
2Function declaration:
From being not difficult to find out DDNS
1, DDNS
2NAT
1, NAT
2Function is different with the notion of general DNS, NAT, is to become organic combination by decimal number gateway protocol 5 between them.
It passes through a realization IP address transition, self-defined, free distribution network address, subnet inside, realizes the rhizosphere name DDNS of the decimal number network (DDInternet) of inner and PERCOM peripheral communication exchanging visit
11, have domain name and address and the domain name of memory (buffer memory) outer net and the DDNS of IP address in the DDInternet of the reservation net
22 and have equally address translation feature, have an internal port, the static NAT of an external address at least
13, pooled NAT
24 and the system in combination of software systems and decimal number gateway protocol 5, with make up based on digital domain system device (DDNS) and existing ICP/IP protocol IPV4 version, the IP address size is at 1～1024, IP adopts the address domain name of decimal numeral digital composition to carry out corresponding one by one parse addresses, and the IP address size is at 1～1024; Also can adopt IPV4 address and IPV6 address.Separate network is realized interconnection and interflow.
The rhizosphere name DDNS of decimal number network (DDInternet) wherein
11 and client all only packed into the domain name of equipment and the decimal number IP address corresponding in the territory, place with one.Its hardware is resolved the software systems of software and NAT software by at least one basic configuration and a shared designated lane and the dedicated platform that comprises based on programming of carrying out decimal number gateway protocol 5.
DDNS
11:DDNS
11 is exactly the rhizosphere name of DDInternet (decimal number network), its only pack into domain name of equipment and the IP address corresponding with it in the territory, place, the corresponding decimal numeral IP of each domain name address; Do not have online domain name of Internet and IP address, and do not allow overseas domain name and the IP address of client storage in the territory, place.Equally, client also only pack into the domain name of equipment and the IP address corresponding in the territory, place, the corresponding decimal numeral IP of each domain name address with it.
DDNS
22: be in the online DDNS of Internet, its father DDNS should have a sensing; Domain name and the address, also have the domain name and the IP address of memory (buffer memory) outer net, but see DNS on Internet in keeping the DDInternet net, the digital domain of all Intranets has only the common IP address of minority, and this point is and DDNS
11 different place.
NAT: network address translation (Network Address Translation) technology, be a kind of mechanism of the legitimate ip address that can't become on the Internet network, to use in the reservation IP address translation used on the Internet network, promptly a network internal, need not pass through application, as required can random self-defining IP address.In network internal, each intercomputer communicates by the IP address of inside.And when inner computer will communicate with the Internet network of outside, the equipment with nat feature was responsible for its implicit IP address conversion legal IP address (promptly passing through the IP address of formal application).
Traditional NAT has three types: static NAT.Each main frame all forever is mapped to some legal addresses in the external network in the internal network.Pooled NAT.Then be address transition, it is that each implicit IP address distributes an interim outside ip address.Address multiplex (PAT) it can make a plurality of home addresses be mapped to same global address, also can be described as " many-one " NAT.
NAT of the present invention is the combination of static NAT and pooled NAT, has both utilized the other side's unique address, utilizes the port numbers of NAT again.Think all that from two networks the other side is an independently network, the network address can reach 2
32More than.
As then be sent to the other side's network by DDNS in the source address situation identical with destination address, then two NAT conversion back source addresses will imply, thereby information is not can misoperation when the other side transmits.It is emphasized that: under intranet and extranet identical ip addresses situation, finish by DDNS difference digital domain and nonnumeric domain name, NAT finishes the mapping of address and implies.
NAT
13: net address and NAT in setting up
1The mapping table of 3 address ports, and in kernel, bag is monitored, the bag of needs processing to be used processing embed again in the kernel, the general modification of only making head does not change packet.
NAT
24: principle requires same NAT
13.
Decimal number gateway of the present invention adopts the distributed parallel processing mode.
Description of drawings
The address resolution of Fig. 1 a kind of decimal number gateway of the present invention, flow path switch figure
Composition and the structured flowchart of Fig. 2 a kind of decimal number gateway DDG of the present invention
Fig. 3 a kind of decimal number gateway system connection diagram of the present invention
Embodiment
Be described further below in conjunction with accompanying drawing
Embodiment:
Decimal number gateway (DDG) system basic configuration comprises:
Hardware is formed by being total to mainboard two-shipper rack industrial computer, and software is made up of two cover DDNS, NAT.
Hardware configuration: homemade 2U cabinet PIII/800 * 2, common power source/homemade 4U cabinet, the 750CPU of Celeron plate; 10M/100M Ethernet card (other two network interface cards are on mainboard); 256 MB of memory; 10G～20G IDE small harddisk.
Article one, the designated lane of shared execution decimal number gateway protocol 5.
Software arrangements: systems soft ware: based on the dedicated platform of Linux; Each two cover of DDNS software and NAT software.
Main outstanding effect of the present invention:
1, can realize that by technical solution of the present invention one has autonomous distribution and can reach 2
256(theoretical value) IP address, both be independent of the existing Internet net, again can with existing Internet network interconnection intercommunication.
2, fail safe, controllability, the independence of network have been guaranteed from network DDNS and NAT system in combination structure.
3, adopt the homemade hardware and the software of independent development, both guaranteed the fail safe of network, reduced system cost simultaneously.
Claims (4)
1, a kind of internetworking equipment that can realize interconnection and interflow with existing Internet of decimal number gateway (DDG), it is characterized in that realizing IP address transition, self-defined, free distribution network address, subnet inside, realize the rhizosphere name DDNS of the decimal number network (DDInternet) that inner and PERCOM peripheral communication are exchanged visits by one
1(1), has domain name and address and the domain name of memory (buffer memory) outer net and the DDNS of IP address in the DDInternet of the reservation net
2(2) and equally have address translation feature, have an internal port, the static NAT of an external address at least
1(3), pooled NAT
2(4) and the system in combination of software systems and decimal number gateway protocol (5), with make up based on digital domain system device (DDNS) and existing ICP/IP protocol IPV4 version, the IP address size realizes interconnecting at 1～1024 separate network.
2, decimal number gateway as claimed in claim 1 is characterized in that the rhizosphere name DDNS of decimal number network (DDInternet)
1(1) and client all only packed into equipment in the territory, place domain name and with its decimal number IP address one to one.
3, decimal number gateway as claimed in claim 1 or 2 is characterized in that the IP address of separate network adopts the domain name of decimal numeral digital composition to carry out corresponding one by one parse addresses, and the IP address size is at 1～1024; Also can adopt IPV4 address and IPV6 address.
4, as claim 1 or 2 or 3 described decimal number gateways, it is characterized in that hardware is by at least one basic configuration and a shared designated lane and the dedicated platform that comprises based on programming of carrying out decimal number gateway protocol (5), the software systems of parsing software and NAT software.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031148158A CN1516415A (en) | 2003-01-10 | 2003-01-10 | Decimal number gateway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031148158A CN1516415A (en) | 2003-01-10 | 2003-01-10 | Decimal number gateway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1516415A true CN1516415A (en) | 2004-07-28 |
Family
ID=34239415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA031148158A Pending CN1516415A (en) | 2003-01-10 | 2003-01-10 | Decimal number gateway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1516415A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101019381B (en) * | 2004-11-02 | 2010-09-08 | 思科技术公司 | Maintaining secrecy of assigned unique local addresses for IPv6 nodes within a prescribed site during access of a wide area network |
| CN102148882A (en) * | 2011-04-25 | 2011-08-10 | 中国联合网络通信集团有限公司 | Dynamic domain name analytic method and system after deployment of NAT |
-
2003
- 2003-01-10 CN CNA031148158A patent/CN1516415A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101019381B (en) * | 2004-11-02 | 2010-09-08 | 思科技术公司 | Maintaining secrecy of assigned unique local addresses for IPv6 nodes within a prescribed site during access of a wide area network |
| CN102148882A (en) * | 2011-04-25 | 2011-08-10 | 中国联合网络通信集团有限公司 | Dynamic domain name analytic method and system after deployment of NAT |
| CN102148882B (en) * | 2011-04-25 | 2013-10-09 | 中国联合网络通信集团有限公司 | Dynamic domain name analytic method and system after deployment of NAT |
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