CN102333131B - Method for providing domain name service, system and agent DNS - Google Patents
Method for providing domain name service, system and agent DNS Download PDFInfo
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- CN102333131B CN102333131B CN201010225025.3A CN201010225025A CN102333131B CN 102333131 B CN102333131 B CN 102333131B CN 201010225025 A CN201010225025 A CN 201010225025A CN 102333131 B CN102333131 B CN 102333131B
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Abstract
The invention discloses a method for providing domain name service in an IPv6 network, a system and an agent DNS (domain name system), wherein the method comprises the steps that a below-hung device of a router is accessed to acquire the IP address of the belonging agent DNS, a domain name is applied through the agent DNS, the former-level domain name of the domain name is determined by the domain name corresponding to the IPv6 address prefix accessed into a router agent; and when the domain name is successfully applied for by the below-hung device, the agent DNS informs a DNS server of the applied domain name and the address information of the below-hung device so as to register domain name addresses. According to the invention, the application of domain names and the registration of domain name addresses are carried out through the agent DNS, so all the below-hung devices do not need to directly apply for domain names to a domain name registration institution, the domain name application process is simplified, waste of domain name resources is avoided, and simultaneously, the domain names of all the below-hung devices accessed to the same router can be uniformly managed.
Description
Technical field
The present invention relates to internet domain name service, more specifically, relate to a kind ofly provides the method for domain name service, system and acts on behalf of domain name analysis system (DNS, Domain NameSystem) in IPv6 network.
Background technology
For the present situation that IPv4 address resource is in short supply, under the effort of numerous equipment suppliers and operator, IPv6 agreement has moved towards the application stage from laboratory.In terms of overall, the technology of IPv6 is ripe, and standard is also substantially perfect, and some network infrastructures and nucleus equipment start to support that it uses all successively.
Compared with IPv4, the main change of IPv6 is exactly that address size becomes 128, the address of IPv4 represents one without symbol decimal integer by a byte, four bytes are write as four decimal numbers separated by 3 points, such as, 10.1.123.56, for the IPv6 address of 128, consider that the length of IPv6 address is four times of IPv4, the suggestion of RFC1884 specified standard grammer 128 of IPv6 address (namely, 16 bytes) write as the signless integer of 8 16, each integer four hexadecimal bit representations, separate with colon (:) between these numbers, such as, 3ffe:3201:1401:1:280:c8ff:fe4d:db39.Although have larger address space in IPv6 address, IPv6 address becomes complicated and difficult note, and user is difficult to by IP address accessing network equipment as IPv4, and configuration and managing I Pv6 address also become very difficult.
Due to the complicated and difficult note in IPv6 address, result in user and directly become very difficult by IPv6 address accessing network equipment.In order to solve the problem, IPv6 address and domain name in domain name registration service mechanism application domain name, and can be bound by user, and user just directly can pass through the domain name access IPv6 network equipment.
Domain name can be divided into different stage, comprises TLD, second level domain etc.
TLD can be divided into two classes again: one is national TLD, and current more than 200 countries are all assigned with TLD according to ISO3166 country code, and such as, China is cn, and the U.S. is us, and Japan is jp etc.; Two is international TLDs, such as, represents the .com of industrial and commercial enterprises, represents the .net of network provider, represent the .org etc. of non-profit organization.Under current most of dispute of domain name all occurs in the TLD of .com, because the object of most company online is all to gain.For strengthening domain name supervising, solve the anxiety of domain name resources, Internet association, the international organizations such as Internet Fen Zhi mechanism and World Intellectual Property Organization are through extensively consulting, the basis of original three international TLDs has newly increased 7 international TLD: firm (incorporated business), store (sales company or enterprise), Web (unit of outstanding WWW activity), arts (outstanding culture, the unit of recreation), rec (outstanding pastime, the unit of recreation), info (unit of information service is provided), nom (individual), and worldwide select new registration body to accept domain name registration application.
Second level domain refers to the domain name under TLD, and under international TLD, it refers to the online title of domain name registration people, such as, and ibm, yahoo, microsoft etc.; Under national TLD, it is the symbol representing registered enterprise's classification, such as, and com, edu, gov, net etc.
The standby schematic diagram obtaining domain name service from domain name registration organ is hung under couple in router in Fig. 1 prior art.
As shown in Figure 1, IPv6 couple in router is by peer-peer protocol (PPP, Point-to-PointProtocol) dial mode or DHCP (DHCP, Dynamical HostConfiguration Protocol) Procedure Acquisition is to IPv6 address prefix, then by shaftless driving mode, IPv6 address assignment is standby to hanging under couple in router.Hang standby after getting IPv6 address under couple in router, bind by IPv6 address and from the domain name that domain name registration organ obtains, and initiate update request to dns server.Hang under such IPv6 couple in router for just being have accessed mutually by domain name.
But, there is following defect in such scheme: hangs for all needing to domain name registration organ's application domain name under (1) all couple in routers, cause the significant wastage of domain name resources, simultaneously couple in router under hang standby domain name and cannot effectively manage; (2) be transitioned into unique available means that IPv6 converse domain star becomes service access, a large amount of domain name service access can not complete in this locality, and DNSv6 server will face the situation of large Concurrency Access; (3) when couple in router address prefix changes, hang standby IPv6 address under they are all and all will change, all will initiate address update request to dns server, and cause dns server heavy burden; (4) hang standby needs under couple in router and obtain domain name service by installation client or pre-configured parameter.
Summary of the invention
The technical problem that the present invention will solve is to provide a kind of method providing domain name service in IPv6 network, hang under can making couple in router and standby obtain domain name service by comparatively low-cost, and hang standby domain name under same couple in router can by unified management.
The invention provides a kind of method that domain name service is provided in IPv6 network, the IP address acting on behalf of DNS belonging to standby acquisition is hung under comprising couple in router, and apply for domain name by acting on behalf of DNS, the domain name that the IPv6 address prefix acted on behalf of by couple in router of the upper level domain name of domain name is corresponding determines; Under hang standby successfully application is to domain name time, act on behalf of DNS by application to domain name and under hang standby address information and inform that dns server is to carry out the registration of domain name addresses.
According to an embodiment of the inventive method, the method also comprise act on behalf of DNS store the IPv6 address prefix of couple in router agency, couple in router IPv6 local address, under hang the binding relationship of the domain name that standby IPv6 address and application are arrived.
According to another embodiment of the inventive method, the method also comprises when the IPv6 address prefix of couple in router agency changes, and couple in router is by the IPv6 address prefix notification agent DNS of the couple in router agency after the IPv6 address prefix of the couple in router agency before the IPv6 local address of couple in router, change and change; Act on behalf of and hang standby under DNS searches couple in router according to the IPv6 address prefix of the couple in router agency before change, and under agency, hang the standby renewal carrying out domain name addresses to dns server.
The invention provides the method for domain name service, standby after the IP address of DNS is acted on behalf of in acquisition owing to hanging under couple in router, all carry out the application of domain name and the registration of domain name addresses by acting on behalf of DNS, thus make all under hang standby without the need to directly to domain name registration organ's application domain name, simplify the flow process of application for domain names, and avoid the waste of domain name resources, simultaneously also can to same couple in router all under hang standby domain name and carry out unified management.
Another technical problem that the present invention will solve is to provide one and acts on behalf of DNS, hangs standby to obtain domain name service by comparatively low-cost under can making couple in router, and hang standby domain name under same couple in router can by unified management.
Present invention also offers one and act on behalf of DNS, comprise application for domain names module, after hanging under couple in router and acting on behalf of the IP address of DNS belonging to standby obtaining, for under hang standby application domain name, wherein, the domain name that the IPv6 address prefix acted on behalf of by couple in router of the upper level domain name of domain name is corresponding determines; Domain name addresses Registering modules, is connected with application for domain names module, under hang standby successfully application is to domain name time, by application to domain name and under hang standby address information and inform that dns server is to carry out the registration of domain name addresses.
An embodiment of DNS is acted on behalf of according to the present invention, act on behalf of DNS and also comprise address information memory module, be connected with application for domain names module, for store the IPv6 address prefix of couple in router agency, couple in router IPv6 local address, under hang the binding relationship of the domain name that standby IPv6 address and application are arrived.
Another embodiment of DNS is acted on behalf of according to the present invention, act on behalf of DNS and also comprise information receiving module, be connected with address information memory module, for when the IPv6 address prefix that couple in router is acted on behalf of changes, receive the IPv6 address prefix of the IPv6 address prefix of the couple in router agency before the IPv6 local address of the couple in router that couple in router sends, change and the couple in router agency after changing; Domain name addresses update module, be connected with address information memory module with information receiving module respectively, hang standby under IPv6 address prefix for acting on behalf of according to the couple in router before change searches couple in router in address information memory module, and under agency, hang the standby renewal carrying out domain name addresses to dns server.
In the present invention, standby after the IP address of DNS is acted on behalf of in acquisition owing to hanging under couple in router, all carry out the application of domain name and the registration of domain name addresses by acting on behalf of DNS, thus make all under hang standby without the need to directly to domain name registration organ's application domain name, simplify the flow process of application for domain names, and avoid the waste of domain name resources, simultaneously also can to same couple in router all under hang standby domain name and carry out unified management.
The another technical problem that the present invention will solve is to provide a kind of system providing domain name service in IPv6 network, hang under can making couple in router and standby obtain domain name service by comparatively low-cost, and hang standby domain name under same couple in router can by unified management.
Invention further provides a kind of system that domain name service is provided in IPv6 network, comprise couple in router, for hanging the IP address acting on behalf of DNS belonging to standby providing under couple in router; Hanging standby under couple in router, be connected with couple in router, for receiving the IP address acting on behalf of DNS that couple in router provides, and applying for domain name to acting on behalf of DNS; Dns server, for for couple in router and under hang and standby provide domain name resolution service, and accept the domain name addresses registration request acting on behalf of DNS; Act on behalf of DNS, respectively with couple in router, under hang standby and dns server and be connected, for under hang back-up and join domain name, and hang the registration for carrying out domain name addresses under agency.
An embodiment of system according to the invention, acts on behalf of DNS and comprises application for domain names module, for under hang standby application domain name, wherein, the domain name that the IPv6 address prefix acted on behalf of by couple in router of the upper level domain name of domain name is corresponding determines; Domain name addresses Registering modules, is connected with application for domain names module, for by application to domain name and under hang standby address information and inform that dns server is to carry out the registration of domain name addresses.
Another embodiment of system according to the invention, couple in router, when IPv6 address prefix also for acting on behalf of at couple in router changes, by the IPv6 address prefix notification agent DNS of the couple in router agency after the IPv6 address prefix of the couple in router agency before the IPv6 local address of couple in router, change and change; Acting on behalf of DNS, also hanging the standby renewal carrying out domain name addresses for acting on behalf of down; Dns server, also for accepting the domain name addresses update request acting on behalf of DNS.
The another embodiment of system according to the invention, act on behalf of DNS and also comprise address information memory module, be connected with application for domain names module, for store the IPv6 address prefix of couple in router agency, couple in router IPv6 local address, under hang the binding relationship of the domain name that standby IPv6 address and application are arrived; Domain name addresses update module, be connected with address information memory module, hang standby under IPv6 address prefix for acting on behalf of according to the couple in router before change searches couple in router in address information memory module, and under agency, hang the standby renewal carrying out domain name addresses to dns server.
The invention provides the system of domain name service, standby after the IP address of DNS is acted on behalf of in acquisition owing to hanging under couple in router, all carry out the application of domain name and the registration of domain name addresses by acting on behalf of DNS, thus make all under hang standby without the need to directly to domain name registration organ's application domain name, simplify the flow process of application for domain names, and avoid the waste of domain name resources, simultaneously also can to same couple in router all under hang standby domain name and carry out unified management.
Description of the invention provides in order to example with for the purpose of describing, and is not exhaustively or limit the invention to disclosed form.Many modifications and variations are apparent for the ordinary skill in the art.Selecting and describing embodiment is in order to principle of the present invention and practical application are better described, and enables those of ordinary skill in the art understand the present invention thus design the various embodiments with various amendment being suitable for special-purpose.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms a application's part.In the accompanying drawings:
The standby schematic diagram obtaining domain name service from domain name registration organ is hung under couple in router in Fig. 1 prior art.
Fig. 2 is the schematic flow sheet of first embodiment of the inventive method.
Fig. 3 is the schematic flow sheet of the instantiation hanging standby application domain name under couple in router of the present invention.
Fig. 4 is the schematic flow sheet of the 3rd embodiment of the inventive method.
Fig. 5 the present invention hangs the standby schematic flow sheet carrying out an instantiation of domain name addresses renewal under acting on behalf of DNS proxy couple in router.
Fig. 6 is the structural representation that the present invention acts on behalf of first embodiment of DNS.
Fig. 7 is the structural representation that the present invention acts on behalf of the 3rd embodiment of DNS.
Fig. 8 is the structural representation of the first embodiment of present system.
Fig. 9 is the structural representation of an instantiation of the system that the invention provides domain name service.
Figure 10 is the structural representation of the second embodiment of present system.
Figure 11 is the structural representation of the 4th embodiment of present system.
Embodiment
With reference to the accompanying drawings the present invention is described more fully, exemplary embodiment of the present invention is wherein described.Exemplary embodiment of the present invention and explanation thereof for explaining the present invention, but do not form inappropriate limitation of the present invention.
Each IPv6 equipment on the Internet can be assigned with a local address and the unique address (for accessing internet) of an overall situation.This global address is made up of address prefix and local address.Couple in router is as an IPv6 equipment, and it can be assigned with a local address and global address, and are correlated with in local address and medium education (MAC, Medium Access Control) address under normal circumstances, can not change.
The IPv6 equipment that couple in router is hung for it is lower provides access service, standby prefix proxy is hung under serving as, it gets IPv6 address prefix by PPP dialing procedure or dhcp process, and hang standby under being handed down to it by Router Advertisement message, under hang standby after getting address prefix, in conjunction with the local address of oneself, generate an overall IPv6 address.
Fig. 2 is the schematic flow sheet of first embodiment of the inventive method.
As shown in Figure 2, this embodiment comprises the following steps:
S102, hang under couple in router standby obtain while obtaining IPv6 address under hang standby belonging to act on behalf of the IP address of DNS, standby access agent DNS is hung to apply for domain name under user passes through, when applying for domain name, user can be newly-built or select a domain name of not conflicting, but domain name corresponding to the IPv6 address prefix acted on behalf of by couple in router of the upper level domain name of domain name of application determines;
S104, under hang standby successfully application is to domain name time, act on behalf of DNS by application to domain name and under hang standby address information and inform that dns server is to carry out the registration of domain name addresses.
Fig. 3 is the schematic flow sheet of the instantiation hanging standby application domain name under couple in router of the present invention.
As shown in Figure 3, this example comprises the following steps:
S202, hangs standby to couple in router transmission router solicitation (RouterSolicitation) message under couple in router;
S204, couple in router (is called for short RA message by Router Advertisement message initiatively, unsolicited Router Advertisement) to its lower its address prefix of extension device broadcasts, and increase an IPv6 Router Advertisement Option---Addresses ofIPv6DNS proxy in a ra message, hang standby its IPv6 address of acquisition under couple in router while, obtain the address acting on behalf of DNS;
S206, hangs under couple in router and standby act on behalf of DNS apply for domain name by logging in, and domain name corresponding to the IPv6 prefix acted on behalf of by couple in router of its upper level domain name determines.
This embodiment is by expanding Addresses of IPv6DNSProxy field in the IPv6Router Advertisement option option in the Router Advertisement message of IPv6 neighbor discovery mechanisms, IPv6 equipment is while acquisition IPv6 address, directly obtain the address acting on behalf of DNS, hang so down for obtaining corresponding domain name by acting on behalf of DNS, the domain name that the IPv6 address prefix acted on behalf of by couple in router of its upper level domain name is corresponding determines, thus hang standby domain name under the router that not only can achieve a butt joint and carry out unified management, and hang under couple in router standby between a large amount of domain name service access can carry out in this locality.
In second embodiment of the inventive method, the method also comprises: act on behalf of DNS store the IPv6 address prefix of couple in router agency, couple in router IPv6 local address, under hang the binding relationship of the domain name that standby IPv6 address and application are arrived.
The DNS that acts on behalf of in this embodiment passes through to store above-mentioned binding relationship to hanging for carrying out unified management under couple in router, make, when the IPv6 address prefix of couple in router agency changes, can unify for hanging the standby renewal carrying out IPv6 domain name addresses under it.
Fig. 4 is the schematic flow sheet of the 3rd embodiment of the inventive method.
As shown in Figure 4, this embodiment comprises the following steps:
S302, hangs the IP address acting on behalf of DNS belonging to standby acquisition under couple in router, and applies for domain name by acting on behalf of DNS, and the domain name that the IPv6 address prefix acted on behalf of by couple in router of the upper level domain name of domain name is corresponding determines;
S304, under hang standby successfully application is to domain name time, act on behalf of DNS by application to domain name and under hang standby address information and inform that dns server is to carry out the registration of domain name addresses;
S306, act on behalf of DNS store the IPv6 address prefix of couple in router agency, couple in router IPv6 local address, under hang the binding relationship of the domain name that standby IPv6 address and application are arrived;
S308, when the IPv6 address prefix of couple in router agency changes, couple in router is by the IPv6 address prefix notification agent DNS of the couple in router agency after the IPv6 address prefix of the couple in router agency before the IPv6 local address of couple in router, change and change;
S310, acts on behalf of DNS standby according to hanging under affected couple in router in the IPv6 address prefix of the couple in router agency before change and aforesaid binding relationship seeking system, and hangs the standby renewal carrying out domain name addresses to dns server under acting on behalf of these.
Fig. 5 the present invention hangs the standby schematic flow sheet carrying out an instantiation of domain name addresses renewal under acting on behalf of DNS proxy couple in router.
As shown in Figure 5, this example comprises the following steps:
S402, when the IPv6 address prefix of couple in router agency changes, it can have been changed by the IPv6 device address prefix of hanging under Router Advertisement message informing, the IPv6 equipment of lower extension will scheduler prefix, cause its IPv6 address to change, at this moment the address prefix before and after its IPv6 local address, change informs to and acts on behalf of DNS by couple in router;
S404, act on behalf of dns lookup go out hang under affected couple in router in its system standby, and act on behalf of these equipment carry out renewal (the domain name addresses renewal IPv6 address that only renewal domain name is corresponding from domain name addresses to dns server, domain name itself is constant), and do not need single registration or the renewal carrying out address of these equipment.
This embodiment is when the address prefix of couple in router changes, notification agent DNS, be responsible for carrying out alternately between dns server by acting on behalf of DNS, and hang for not needing directly to dns server initiation address update request under couple in router, acted on behalf of down to hang by Unified Device like this and access can solve in this locality for making down to hang standby domain name service alternately with affiliated territory dns server, thus decrease the problem that DNSv6 server faces large Concurrency Access.
Fig. 6 is the structural representation that the present invention acts on behalf of first embodiment of DNS.
As shown in Figure 6, the DNS that acts on behalf of of this embodiment comprises:
Application for domain names module 11, after hanging under couple in router and acting on behalf of the IP address of DNS belonging to standby obtaining, under hang standby application domain name, wherein, the domain name that the IPv6 address prefix acted on behalf of by couple in router of the upper level domain name of domain name is corresponding determines;
Domain name addresses Registering modules 12, is connected with application for domain names module 11, under hang standby successfully application is to domain name time, by application to domain name and under hang standby address information and inform that dns server is to carry out the registration of domain name addresses.
Hang under couple in router in this embodiment standby directly get while obtaining IPv6 address belonging to act on behalf of the address of DNS, do not need client or the pre-configured address acting on behalf of DNS are installed.And, this embodiment all carries out the application of domain name and the registration of domain name addresses by acting on behalf of DNS, thus make all under hang standby without the need to directly to domain name registration organ's application domain name, simplify the flow process of application for domain names, and avoid the waste of domain name resources, simultaneously also can to same couple in router all under hang standby domain name and carry out unified management.
Act on behalf of in second embodiment of DNS in the present invention, the DNS that acts on behalf of of this embodiment also comprises:
Address information memory module, is connected with application for domain names module, for store the IPv6 address prefix of couple in router agency, couple in router IPv6 local address, under hang the binding relationship of the domain name that standby IPv6 address and application are arrived.
The DNS that acts on behalf of in this embodiment passes through to store above-mentioned binding relationship to hanging for carrying out unified management under couple in router, make, when the IPv6 address prefix of couple in router agency changes, can unify for hanging the standby renewal carrying out IPv6 domain name addresses under it.
Fig. 7 is the structural representation that the present invention acts on behalf of the 3rd embodiment of DNS.
As shown in Figure 7, compared with the embodiment in Fig. 6, the DNS that acts on behalf of of this embodiment also comprises:
Address information memory module 21, is connected with application for domain names module, for store the IPv6 address prefix of couple in router agency, couple in router IPv6 local address, under hang the binding relationship of the domain name that standby IPv6 address and application are arrived;
Information receiving module 22, be connected with address information memory module 21, for when the IPv6 address prefix that couple in router is acted on behalf of changes, receive the IPv6 address prefix of the IPv6 address prefix of the couple in router agency before the IPv6 local address of the couple in router that couple in router sends, change and the couple in router agency after changing;
Domain name addresses update module 23, be connected with address information memory module 21 with information receiving module 22 respectively, hang standby under IPv6 address prefix for acting on behalf of according to the couple in router before change searches couple in router in address information memory module, and under agency, hang the standby renewal carrying out domain name addresses to dns server.
This embodiment is when the address prefix of couple in router changes, notification agent DNS, be responsible for carrying out alternately between dns server by acting on behalf of DNS, and hang for not needing directly to dns server initiation address update request under couple in router, acted on behalf of down by Unified Device like this and hang for carrying out alternately, decreasing the problem that DNSv6 server faces large Concurrency Access with affiliated territory dns server.
Fig. 8 is the structural representation of the first embodiment of present system.
As shown in Figure 8, the system of this embodiment comprises:
Couple in router 31, for hanging the IP address acting on behalf of DNS belonging to standby providing under couple in router, such as, it supports IETF RFC4861, RFC4862, the couple in router of RFC3315 agreement, need to increase Addresses of IPv6DNS Proxy field in the IPv6RouterAdvertisement option option in Router Advertisement message, couple in router by the address that IPv6 to be acted on behalf of DNS by this field give down hang standby, need its local address when couple in router powers on or restart, address prefix informs IPv6 and acts on behalf of DNS,
Standby 32 are hung under couple in router, be connected with couple in router 31, for receiving the IP address acting on behalf of DNS that couple in router provides, and apply for domain name to acting on behalf of DNS, such as, it supports IETF RFC4861, RFC4862 agreement, and can identify the Addresses of IPv6DNS Proxy field in Router Advertisement message in IPv6Router Advertisement option option;
Dns server 33, for for couple in router and under hang and standby provide domain name resolution service, and accept the domain name addresses registration request acting on behalf of DNS;
Act on behalf of DNS 34, respectively with couple in router 31, under hang standby 32 and dns server 33 be connected, for under hang back-up and join domain name, and hang the registration for carrying out domain name addresses under agency.
Fig. 9 is the structural representation of an instantiation of the system that the invention provides domain name service.
As shown in Figure 9, compared with the prior art of Fig. 1, this example adds one and acts on behalf of DNS between couple in router and dns server, for under hang back-up and join domain name, and under agency, hang the standby registration carrying out domain name addresses.Particularly, hang standby while acquisition IPv6 address under couple in router, act on behalf of the IPv6 address of DNS belonging to getting, under hang and standby apply for domain name service by acting on behalf of DNS, the upper level domain name of the domain name of applying for is determined by the domain name that the IPv6 address prefix of couple in router is corresponding.
This embodiment acts on behalf of DNS by introducing, and belonging to agency, IPv6 equipment carries out address registration to local dns server, for affiliated IPv6 equipment provides domain name service, and completes a large amount of domain name service access services in this locality.
Figure 10 is the structural representation of the second embodiment of present system.
As shown in Figure 10, compared with the embodiment in Fig. 8, the DNS 41 that acts on behalf of in this embodiment comprises:
Application for domain names module 411, for under hang standby application domain name, wherein, the domain name that the IPv6 address prefix acted on behalf of by couple in router of the upper level domain name of domain name is corresponding determines;
Domain name addresses Registering modules 412, is connected with application for domain names module, for by application to domain name and under hang standby address information and inform that dns server is to carry out the registration of domain name addresses.
In the 3rd embodiment of present system, couple in router, when IPv6 address prefix also for acting on behalf of at couple in router changes, by the IPv6 address prefix notification agent DNS of the couple in router agency after the IPv6 address prefix of the couple in router agency before the IPv6 local address of couple in router, change and change; Acting on behalf of DNS, also hanging the standby renewal carrying out domain name addresses for acting on behalf of down; Dns server, also for accepting the domain name addresses update request acting on behalf of DNS.
This embodiment is when the change of couple in router IPv6 address prefix causes IPv6 device address to change, couple in router acts on behalf of DNS belonging to local ip address, address prefix being informed to, act on behalf of DNS check out affected under hang standby, initiate update request by acting on behalf of DNS to local dns server, IPv6 equipment does not need initiatively to initiate address update request.
Figure 11 is the structural representation of the 4th embodiment of present system.
As shown in figure 11, compared with the embodiment in Figure 10, the DNS 51 that acts on behalf of in this embodiment also comprises:
Address information memory module 511, is connected with application for domain names module, for store the IPv6 address prefix of couple in router agency, couple in router IPv6 local address, under hang the binding relationship of the domain name that standby IPv6 address and application are arrived;
Domain name addresses update module 512, be connected with address information memory module, hang standby under IPv6 address prefix for acting on behalf of according to the couple in router before change searches couple in router in address information memory module, and under agency, hang the standby renewal carrying out domain name addresses to dns server.
This embodiment to carry out the renewal of domain name addresses to local dns server by acting on behalf of IPv6 equipment belonging to DNS proxy, for affiliated IPv6 equipment provides domain name service, and a large amount of domain name service restrict access completed in this locality.
Claims (5)
1. in IPv6 network, provide a method for domain name service, it is characterized in that, described method comprises:
Hang the IP address acting on behalf of DNS belonging to standby acquisition under couple in router, and apply for domain name by the described DNS that acts on behalf of, the domain name that the IPv6 address prefix acted on behalf of by couple in router of the upper level domain name of domain name is corresponding determines;
Hang under described standby when successfully application is to domain name, the described DNS of agency by application to domain name and described under hang standby address information and inform that dns server is to carry out the registration of domain name addresses;
Wherein, when the address prefix of couple in router changes, notification agent DNS, being responsible for carrying out alternately between dns server by acting on behalf of DNS, hanging and initiating address update request for not needing directly to dns server under couple in router;
When the IPv6 address prefix that described couple in router is acted on behalf of changes, the IPv6 address prefix of the couple in router agency after the IPv6 address prefix of the couple in router agency before the IPv6 local address of described couple in router, change and change notifies describedly to act on behalf of DNS by described couple in router;
The described DNS of agency hangs standby under searching described couple in router according to the IPv6 address prefix of the couple in router agency before change, and act on behalf of described under hang the standby renewal carrying out domain name addresses to described dns server.
2. method according to claim 1, is characterized in that, described method also comprises:
The described DNS of agency store the IPv6 address prefix of described couple in router agency, described couple in router IPv6 local address, described under hang the binding relationship of the domain name that standby IPv6 address and described application are arrived.
3. act on behalf of a DNS, it is characterized in that, the described DNS of agency comprises:
Application for domain names module, after hanging under couple in router and acting on behalf of the IP address of DNS belonging to standby obtaining, for hanging standby application domain name under described, wherein, the domain name that the IPv6 address prefix acted on behalf of by couple in router of the upper level domain name of domain name is corresponding determines;
Domain name addresses Registering modules, is connected with domain name application module, for hang under described standby successfully application is to domain name time, by application to domain name and described under hang standby address information and inform that dns server is to carry out the registration of domain name addresses;
Wherein, when the address prefix of couple in router changes, notification agent DNS, being responsible for carrying out alternately between dns server by acting on behalf of DNS, hanging and initiating address update request for not needing directly to dns server under couple in router;
Information receiving module, for when the IPv6 address prefix of described couple in router agency changes, receive the IPv6 address prefix of the IPv6 address prefix of the couple in router agency before the IPv6 local address of the described couple in router that described couple in router sends, change and the couple in router agency after changing;
Domain name addresses update module, standby for hanging under searching described couple in router according to the IPv6 address prefix of the couple in router agency before change in described address information memory module, and act on behalf of described under hang the standby renewal carrying out domain name addresses to described dns server.
4. according to claim 3ly act on behalf of DNS, it is characterized in that, the described DNS of agency also comprises:
Address information memory module, be connected with domain name application module, for store the IPv6 address prefix of described couple in router agency, described couple in router IPv6 local address, described under hang the binding relationship of the domain name that standby IPv6 address and described application are arrived.
5. in IPv6 network, provide a system for domain name service, it is characterized in that, described system hangs under comprising couple in router, couple in router acts on behalf of DNS according to any one of standby, dns server and claim 3-4, wherein,
Described couple in router, for hanging the IP address acting on behalf of DNS belonging to standby providing under described couple in router; When IPv6 address prefix also for acting on behalf of at described couple in router changes, the IPv6 address prefix of the couple in router agency after the IPv6 address prefix of the couple in router agency before the IPv6 local address of described couple in router, change and change is notified describedly to act on behalf of DNS;
Hanging standby under described couple in router, be connected with described couple in router, for receiving the described IP address acting on behalf of DNS that described couple in router provides, and applying for domain name to the described DNS that acts on behalf of;
Described dns server, for for described couple in router and described under hang and standby provide domain name resolution service, and accept the described domain name addresses registration request acting on behalf of DNS;
Describedly act on behalf of DNS, respectively with described couple in router, described under hang standby and described dns server and be connected, for joining domain name for hanging back-up under described, and act on behalf of described under hang registration for carrying out domain name addresses;
Wherein, the described DNS of agency comprises:
Application for domain names module, for for hanging standby application domain name under described, wherein, the domain name that the IPv6 address prefix acted on behalf of by couple in router of the upper level domain name of domain name is corresponding determines;
Domain name addresses Registering modules, is connected with domain name application module, for by application to domain name and described under hang standby address information and inform that described dns server is to carry out the registration of domain name addresses;
Address information memory module, be connected with domain name application module, for store the IPv6 address prefix of described couple in router agency, described couple in router IPv6 local address, described under hang the binding relationship of the domain name that standby IPv6 address and described application are arrived;
Domain name addresses update module, be connected with described address information memory module, standby for hanging under searching described couple in router according to the IPv6 address prefix of the couple in router agency before change in described address information memory module, and act on behalf of described under hang the standby renewal carrying out domain name addresses to described dns server.
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| CN103581353B (en) * | 2012-08-02 | 2018-06-19 | 上海斐讯数据通信技术有限公司 | The method of automatic configuration and system of gateway device |
| CN103873372B (en) * | 2012-12-14 | 2016-12-28 | 华耀(中国)科技有限公司 | Policy-routing system based on domain name and method to set up |
| CN109819059B (en) * | 2017-11-21 | 2020-07-28 | 华为技术有限公司 | Method, device, equipment and storage medium for managing network equipment |
| CN109462667B (en) * | 2018-10-23 | 2021-07-06 | 新华三技术有限公司合肥分公司 | Domain name list acquisition method and related device |
| CN113630480B (en) * | 2021-08-05 | 2024-02-09 | 芯河半导体科技(无锡)有限公司 | Method for realizing DNS data isolation of multiple internet surfing channels |
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| CN1984155A (en) * | 2005-12-15 | 2007-06-20 | 上海贝尔阿尔卡特股份有限公司 | Method for configuring domain name in IPv6 access network and its network equipment |
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