CN102137170A - Method and device for distributing IPv6 (Internet Protocol version 6) addresses - Google Patents
Method and device for distributing IPv6 (Internet Protocol version 6) addresses Download PDFInfo
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Abstract
A method of initiating a PPP (Point-to-Point Protocol) on an RG to obtain address information has very wide application demands in practice, and as the existing IPv6 (Internet Protocol version 6) address consultation collocation method can not allocate complete IPv6 addresses through allocation option consultation, the invention provides a simple and vigorous IPv6 address consultation allocation scheme. According to the scheme, the consultation allocation of IPv6 address information is conducted by expanding allocation options of a IPv6 CP (content provider), thereby obtaining the complete IPv6 addresses and corresponding information or prefixed information on a DNS (Domain Name Server) and the like, so that the implementation method is simple and consistent with a related implementation method of an original IPv4, thereby reducing the cost of equipment and leading the running of the equipment to be more stable.
Description
Technical field
The present invention relates to network communication field, particularly, is a kind of for the method and apparatus of user's distributing IP v6 (internetprotocol version 6) address.
Background technology
The rapid expansion of the high speed development of Internet and scale makes existing IPv4 face a lot of problems on autgmentability, and for example address space deficiency etc. needs to be resolved hurrily.So evolution at present goes out some short-term projects that delay address consumption to solve the exhausted problem of IPv4 address space, simultaneously, long-term solution such as IPv6 technology are also being developed fast.
PPP is as a kind of link layer protocol, because it is simple efficient and have good autgmentability, is widely used in " number link (DSL) " dialing, authentication, and the encapsulation of router high-speed link waits each field." network layer control protocol (NCP, network-layer controlprotocol) " among the PPP makes and can carry multiple network layer protocol, for example IPv4, IPv6 etc. simultaneously on PPP connects.
During PPP carrying IPv4, can obtain information such as 32 complete bit address of IPv4 and corresponding D NS by IPCP, yet when utilizing PPP carrying IPv6, existing mode 1 is to consult to generate interface-id information by " interface identifier (interface-id) config option (configuration-option) " in " IPv6 control protocol (IPv6CP) " earlier in the negotiations process of PPP, and then obtain " prefix (prefix) " information by stateless address configuration mechanism, finally be combined into complete IPv6 address, mode 2 consults to generate interface-id information by " interface identifier (interface-id) config option (configuration-option) " in " IPv6 control protocol (IPv6CP) ", and generate Link Local address, obtain the IPv6 address by DHCPv6.
Above-mentioned two kinds of existing address negotiation collocation methods all can not directly be consulted to obtain complete IPv6 address by configuration-option in the IPv6CP negotiations process, and are inconsistent with the implementation method of IPv4 address negotiation among the original PPP.These two kinds of methods need extra treatment mechanism, have increased the expense that equipment is realized and moved, and can cause losing consistency and continuity by IPv4 in the process of IPv6 migration; And, weakened its control dynamics to address assignment and planning for operator.
On the other hand, now the general built-in PPP software of route type home gateway (RG) is used for the acquisition of address, and under the IPv6 environment, how RG also needs to solve by the address problem that PPP software obtains IPv6.Existing scheme as shown in Figure 1, RG can obtain address and the relevant information of IPv4 by PPP from broadband gateway (BNG), and obtain the interface identifier of IPv6 by the NCP process, use DHCPv6 to obtain IPv6 address, I28 position or use DHCPv6-PD acquisition prefix after generating local address, or stateless address distributes (SLAAC, Stateless address auto-configuration) to obtain 128 IPv6 addresses of prefix generation.The host address that the prefix that RG uses DHCPv6-PD to obtain is used for the distributing user side specifically can use the DHCP or the stateless address method of salary distribution.But this address distribution method more complicated, the not enough simplification.
Summary of the invention
The technical problem to be solved in the present invention is the negotiation configuration more complicated of IPv6 address among the PPP, the not enough simplification.In order to address the above problem, the invention provides a kind of device of user's distributing IP v6 address that is, this device comprises:
The ppp protocol module is used to initiate PPP request and agreement exchange;
Address assignment module links to each other with described ppp protocol module, is used for RG user side interface main frame is initiated address assignment.
Further, described ppp protocol module is initiated the PPP request, and upper strata PPP server responds described PPP request, and is PPP user side configuration corresponding configuration information.
Further, described user side is initiated a plurality of NCP processes by behind the PPP server authentication of described upper strata; In the IPv4 system, obtain IPv4 address and corresponding D NS information by described NCP process; In the IPv6 system, obtain IPv6 address and corresponding D NS information by the config option of expanding NCP, and obtain to be used to distribute the prefix information of described user side address.
Further, described prefix information is by described PPP server-assignment.
Further, behind the config option that described address assignment module reception opposite end server sends, dispose the IP address of described RG itself or the address that a prefix information that obtains is used to distribute described user side.Wherein the method for salary distribution is the DHCPv6 or the stateless address method of salary distribution.
Further, described device is the part of route type home gateway system.
To achieve these goals, according to another aspect of the present invention, provide a kind of method of user's distributing IP v6 address that is, described method comprises:
RG initiates the ppp negotiation request, behind LCP, initiates the NCP process;
IPv4 address and corresponding address information obtain by the NCP process of IPv4;
IPv6 address and appropriate address information obtain by the NCP process of IPv6;
The prefix information of described RG acquisition IPv6 is used for the IPv6 address of distributing user side.
Further, described appropriate address information comprises the prefix information of first dns server, second dns server, gateway address, described IPv6.
Further, after described method comprises that also described RG obtains the prefix information of IPv6, the IPv6 address of using DHCP or stateless address method of salary distribution distributing user.
Further,, described method also comprises: described RG does not obtain the prefix information of IPv6, then uses network address translation NAT to realize the distribution of IP address.
By the present invention, the IPv6-address config option carries out the negotiation configuration of IPv6 address among the employing IPv6CP, thereby obtain complete IPv6 address, implementation method is simple, and the implementation relevant with former IPv4 is consistent, thereby reduced the expense of equipment, makes operation stable and healthy and strong more, the IPv6 address prefix that obtains can be used for distributing to the client use that user side interface links to each other, and has the ability of distributing client address.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1: the method that obtains the IPv4/IPv6 address for RG in the prior art by PPP mode and DHCP;
Fig. 2: the device schematic diagram of realizing address assignment for RG of the present invention;
Fig. 3: the method that obtains the IPv4/IPv6 address for use PPP mode of the present invention;
Fig. 4: the mutual schematic diagram that obtains the IPv4/IPv6 address for use ppp mode of the present invention.
Embodiment
Functional overview
The last initiation of RG PPP process comes address acquisition information that application demand is very widely arranged in practice, consider that existing IPv6 address negotiation collocation method can't directly be consulted the complete IPv6 address of configuration by config option among the PPP, it is a kind of simple that the embodiment of the invention provides, healthy and strong IPv6 address negotiation allocation plan, adopt the config option of expansion IPv6CP to carry out the negotiation configuration of IPv6 address information, thereby obtain information or prefix informations such as complete IPv6 address and corresponding D NS, simple and the implementation relevant with former IPv4 of implementation method is consistent, thereby reduced the expense of equipment, made that operation is more stable.
Shown in 2, in the home gateway RG of the embodiment of the invention, comprise with reference to the accompanying drawings:
The ppp protocol module is used to initiate PPP request and relevant agreement exchange;
Address assignment module is initiated address assignment to the user side interface main frame of RG.
Wherein, the ppp protocol module of RG is initiated a PPP request, and ppp link can be carried IPv4 and I Pv6 data simultaneously, the PPP request that the PPP server response RG of opposite end initiates.After passing through LCP, RG can initiate a plurality of NCP processes, comprises the process of an IPCPv4 and an IPCPv6 at least; Corresponding address informations such as IPv4 address can be obtained by IPCPv4, information such as IPv6 address can be obtained by IPCPv6.RG asks 128 IPv6 addresses by the config option of IPCPv6.The standard of existing IETF need be expanded corresponding config option, and the config option of increase can comprise: information such as IPv6128 bit address, DNS, address prefix after the opposite end server is received association requests, send corresponding config option to RG.
After RG has received corresponding config option, address assignment module can configuration itself I P address (WAN side), also can be used for the prefix information that obtains the address (LAN side) of distributing user side, the mode of distribution comprises the DHCPv6 or the stateless address method of salary distribution.
By ppp protocol module and address assignment module, user side (Client) just can obtain corresponding address and corresponding address configuration information.
With reference to the accompanying drawings 3 and Fig. 4, the method according to this invention embodiment comprises:
Step S302, RG initiates the ppp negotiation process, behind LCP, initiates the NCP process;
Step S304, the address of IPv4/IPv6 and corresponding address information obtain by the NCP process of IPv4/IPv6
Step S306, RG obtains the IPv6 address that prefix information is used for the distributing user side.
In the process of initiating NCP, can initiate the NCP process of IPv4 and IPv6 respectively, the data of IPv4 and IPv6 can be carried in same PPP.
Appropriate address information comprises: first dns server, and second dns server, information such as gateway address also can comprise the prefix information of IPv6.
RG after obtaining the prefix information of IPv6, the IPv6 address that can use DHCP or stateless address method of salary distribution distributing user.Prefix such as one 56 of RG acquisitions, can distribute to 128 bit address of client that are connected user-side port based on this prefix, also can distribute one 64 prefix information to give client, client and RG are by the Neighbor Discovery Protocol exchange message, and client is produced back 64 bit address based on MAC Address.
If RG does not obtain the prefix information of IPv6, can use NAT technology (NAT) to realize the distribution of IP address, operate according to the standard of existing IETF.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (13)
1. the distributor of an IPv6 address is characterized in that, described device comprises:
The ppp protocol module is used to initiate PPP request and agreement exchange;
Address assignment module links to each other with described ppp protocol module, is used for RG user side interface main frame is initiated address assignment.
2. device as claimed in claim 1 is characterized in that, described ppp protocol module is initiated the PPP request, and upper strata PPP server responds described PPP request, and is PPP user side configuration corresponding configuration information.
3. device as claimed in claim 2 is characterized in that, described user side is initiated a plurality of NCP processes by behind the PPP server authentication of described upper strata.
4. device as claimed in claim 3 is characterized in that, in the IPv4 system, obtains IPv4 address and corresponding D NS information by described NCP process.
5. device as claimed in claim 3 is characterized in that, in the IPv6 system, obtains IPv6 address and corresponding D NS information by the config option of expanding NCP, and obtains to be used to distribute the prefix information of described user side address.
6. device as claimed in claim 5 is characterized in that, described prefix information is by described PPP server-assignment.
7. device as claimed in claim 1 is characterized in that, behind the config option that described address assignment module reception opposite end server sends, disposes the IP address of described RG itself or the address that a prefix information that obtains is used to distribute described user side.
8. device as claimed in claim 7 is characterized in that, the method for salary distribution is the DHCPv6 or the stateless address method of salary distribution.
9. device as claimed in claim 1 is characterized in that, described device is the part of route type home gateway system.
10. the distribution method of a User IP v6 address is characterized in that, described method comprises:
RG initiates the ppp negotiation request, behind LCP, initiates the NCP process;
IPv4 address and corresponding address information obtain by the NCP process of IPv4;
IPv6 address and appropriate address information obtain by the NCP process of IPv6;
The prefix information of described RG acquisition IPv6 is used for the IPv6 address of distributing user side.
11. method as claimed in claim 10 is characterized in that, described appropriate address information comprises: the prefix information of first dns server, second dns server, gateway address, described IPv6.
12., it is characterized in that described method also comprises: after described RG obtains the prefix information of IPv6, use the IPv6 address of DHCP or stateless address method of salary distribution distributing user as claim 10 or 11 described methods.
13. as claim 10 or 11 described methods, it is characterized in that described method also comprises: described RG does not obtain the prefix information of IPv6, then uses network address translation NAT to realize the distribution of IP address.
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| CN201010103412XA CN102137170A (en) | 2010-01-26 | 2010-01-26 | Method and device for distributing IPv6 (Internet Protocol version 6) addresses |
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| CN201010103412XA CN102137170A (en) | 2010-01-26 | 2010-01-26 | Method and device for distributing IPv6 (Internet Protocol version 6) addresses |
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| CN102624707A (en) * | 2012-02-22 | 2012-08-01 | 中兴通讯股份有限公司 | Method and system for negotiating internet protocol version 6 (IPv6) information |
| WO2012155562A1 (en) * | 2011-10-14 | 2012-11-22 | 中兴通讯股份有限公司 | Method for route transmission based on single ipv6 address prefix, and wireless device |
| WO2013123763A1 (en) * | 2012-02-20 | 2013-08-29 | 烽火通信科技股份有限公司 | Dynamic ipv6 configuration method for home gateway |
| WO2013178164A1 (en) * | 2012-12-07 | 2013-12-05 | 中兴通讯股份有限公司 | Ipv6 domain name server (dns) address allocation and obtaining method and device |
| WO2014015775A1 (en) * | 2012-07-25 | 2014-01-30 | 中兴通讯股份有限公司 | Ipv6 address stateless auto-configuration system, data card, and implementation method thereof |
| CN104010048A (en) * | 2014-03-18 | 2014-08-27 | 秦超 | Device and method used for management of IP addresses |
| CN104869177A (en) * | 2014-02-21 | 2015-08-26 | 中兴通讯股份有限公司 | Local area network information issuing method and device |
| CN105681481A (en) * | 2014-11-18 | 2016-06-15 | 中兴通讯股份有限公司 | Method and device for realizing network translation to IPv6 (Internet Protocol Version 6) based on PNAT (Prefix Network Address Translation) and terminal device |
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| CN114500258A (en) * | 2021-12-14 | 2022-05-13 | 四川天邑康和通信股份有限公司 | Automatic internet surfing configuration method for ipv6 under wifi6 router under home intelligent gateway |
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| US9258699B2 (en) | 2011-10-14 | 2016-02-09 | Zte Corporation | Method for route transmission based on single IPv6 address prefix, and wireless device |
| WO2012155562A1 (en) * | 2011-10-14 | 2012-11-22 | 中兴通讯股份有限公司 | Method for route transmission based on single ipv6 address prefix, and wireless device |
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| CN104869177A (en) * | 2014-02-21 | 2015-08-26 | 中兴通讯股份有限公司 | Local area network information issuing method and device |
| WO2015123947A1 (en) * | 2014-02-21 | 2015-08-27 | 中兴通讯股份有限公司 | Method and apparatus for delivering local area network information |
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| CN105681481A (en) * | 2014-11-18 | 2016-06-15 | 中兴通讯股份有限公司 | Method and device for realizing network translation to IPv6 (Internet Protocol Version 6) based on PNAT (Prefix Network Address Translation) and terminal device |
| CN105704043A (en) * | 2014-11-25 | 2016-06-22 | 中兴通讯股份有限公司 | Renegotiation processing method and apparatus |
| WO2017161844A1 (en) * | 2016-03-25 | 2017-09-28 | 中兴通讯股份有限公司 | Link establishment method, device and system |
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| US11863515B2 (en) * | 2021-12-10 | 2024-01-02 | Cisco Technology, Inc. | Systems and methods for translating IPV6 packets for DIA in an SD-WAN environment |
| CN114500258A (en) * | 2021-12-14 | 2022-05-13 | 四川天邑康和通信股份有限公司 | Automatic internet surfing configuration method for ipv6 under wifi6 router under home intelligent gateway |
| CN114500258B (en) * | 2021-12-14 | 2023-08-15 | 四川天邑康和通信股份有限公司 | Automatic internet configuration method for ipv6 under wifi6 router under home intelligent gateway |
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