CN101674288B - Method, device and system for managing address prefix distribution - Google Patents
Method, device and system for managing address prefix distribution Download PDFInfo
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Abstract
The embodiment of the invention provides a method, a device, and a system for managing address prefix distribution. The method mainly comprises the following steps: acquiring a prefix extension management strategy from a strategy manager through a strategy control protocol, wherein the prefix extension management strategy comprises relationships between strategy identification and address prefix extension parameters; acquiring the strategy identification; searching the prefix extension management strategy according to the strategy identification to acquire corresponding address prefix extension parameters; extending the address prefix according to the address prefix extension parameters; distributing an address or redesignating the prefix by using the extended address prefix. The method, the device and the system effectively solve the problem of disorder when prefix extension distribution equipment distributes addresses for subordinate network equipment, enable the prefix extension distribution equipment to distribute IP addresses for the subordinate network equipment according to the preset prefix extension management strategy, and ensure that prefix secondary distribution of the prefix extension distribution equipment becomes controllable and orderable.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of management method, device and system of address prefix distribution.
Background technology
IPv6 (Internet Protocol Version6, internet protocol version 6) is a kind of new IP agreement that develops out from IPv4 (internet protocol version 4) agreement.The IPv6 address size extends to 128 bits by the 32Bit (bit) of IPv4.An IPV6 address comprises: prefix and interface identifier, a kind of form of classical ip v6 unicast address as described in Table 1:
Table 1:IPv6 address format
| Prefix (Prefix) | Interface flag (Interface ID) |
| N bit (Bit) | The 128-n bit |
Prefix in the above-mentioned table 1 is to distribute to an example hierarchy structured value of website (a group subnet or link).Interface flag is generated according to interface message by the networking node, such as ethernet mac (Medium Access Control, the media access control) address generation according to node interface.
The IPv6 address configuration can be divided into static address configuration and dynamic address configuration dual mode.The dynamic address configuration mode also comprises: stateless address automatically configures and has state address automatically to configure dual mode.State address is wherein arranged, and configuration is similar with the automatic configuration in the address among the IPv4 automatically, is to be configured by DHCP (Dynamic Host Configuration Protocol, DHCP) agreement.
A kind of request router (is residence gateway (RG in this example, Residential Gateway)) schematic diagram of giving undernet devices allocation IP address or specified prefix as shown in Figure 1, general RG is integrated Dynamic Host Configuration Protocol server or the automatic configuration router functional unit of stateless address, RG by the DHCP prefix delegation from appointing router (this example for Dynamic Host Configuration Protocol server) applied address prefix, the address prefix of above-mentioned application is 56 address prefix (2002:db8:200:100: :/56) in this example, RG is the undernet devices allocation IP addresses such as different network host or assigned address prefix again, such as: RG/64) and address prefix 2 (2002:db8:200:110: :/64) and address prefix 3 (2002 ∷ db8:200:118: :/64) etc. with 56 prefix (2002:db8:200:100: :/56) be extended to 64 address prefix 1 (2002:db8:200:108::, RG gives main frame 1 appointment above-mentioned 64 bit address prefixes 1 to main frame 1 configuration according to the IP address of 128 of above-mentioned 64 bit address prefixes, 1 generations or by SLAA (as: RA carries 64 above-mentioned bit address prefixes 1) by the automatic configuration of dhcp address, or specifies 64 above-mentioned bit address prefixes 1 by DHCPPD to main frame 1; RG gives main frame 2 distributing IP addresses or assigned address prefix etc. according to 64 above-mentioned bit address prefixes 2.
In realizing process of the present invention, the inventor finds that there are the following problems at least in the prior art: have no idea at present the address extension of request router is carried out control and management, by random address prefix to undernet devices allocation IP address or again during the assigned address prefix, also has very large randomness, the address that easily causes various undernet equipment is chaotic, is unfavorable for simultaneously higher level's network control and management.
Summary of the invention
Embodiments of the invention provide a kind of management method, device and system of address prefix distribution, the randomness problem when solving prior art to undernet devices allocation address.
The purpose of the embodiment of the invention is achieved through the following technical solutions:
A kind of management method of address prefix distribution comprises:
Acquisition strategy sign and address prefix, the Prefix Expansion management strategy that inquiry obtains in advance according to the strategy sign is obtained corresponding address prefix spreading parameter, comprises the corresponding relation between strategy sign and the address prefix spreading parameter in the described Prefix Expansion management strategy;
According to described address prefix spreading parameter described address prefix is expanded;
Utilize address prefix after the expansion to distribute address or specified prefix again.
A kind of management devices of address prefix expansion distribution comprises:
The acquisition of information module is used for obtaining address prefix and Prefix Expansion management strategy, comprises the corresponding relation between strategy sign and the address prefix spreading parameter in the described Prefix Expansion management strategy;
The address administration module, be used for the acquisition strategy sign, obtain corresponding address prefix spreading parameter according to the described Prefix Expansion management strategy of strategy sign inquiry, according to described address prefix spreading parameter described address prefix is expanded, utilized address prefix after the expansion to distribute address or assigned address prefix again.
A kind of management system of address prefix distribution comprises:
Policy manager: be used for issuing the Prefix Expansion management strategy to address prefix expansion dispensing device, comprise the corresponding relation between strategy sign and the address prefix spreading parameter in the described Prefix Expansion management strategy;
Address manager: be used for to address prefix expansion dispensing device delegate address prefixes;
Address prefix expansion dispensing device, be used for the acquisition strategy sign, obtain corresponding address prefix spreading parameter according to the described Prefix Expansion management strategy of strategy sign inquiry, according to described address prefix spreading parameter described address prefix is expanded, utilized address prefix after the expansion to distribute address or specified prefix again.
Can be found out by the technical scheme that the embodiment of the invention described above provides, the embodiment of the invention has solved the unordered problem of Prefix Expansion discharge device to undernet devices allocation address the time effectively, can make the predetermined PEMP of Prefix Expansion discharge device basis to undernet devices allocation IP address, so that secondary the appointing of the prefix of Prefix Expansion discharge device becomes controlled and orderly.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention, the accompanying drawing of required use was done to introduce simply during the below will describe embodiment, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is that a kind of router of asking of the prior art is to undernet devices allocation IP address or the schematic diagram of specified prefix again;
The structural representation of the management system of a kind of address prefix distribution that Fig. 2 provides for the embodiment of the invention one;
The address structure schematic diagram that the PEMP that arranges according to service identification that Fig. 3 provides for the embodiment of the invention one distributes;
The structural representation of a kind of Prefix Expansion discharge device that Fig. 4 provides for the embodiment of the invention two;
Fig. 5 realizes PEMP management processing flow chart for pass through Dynamic Host Configuration Protocol server and aaa server that the embodiment of the invention three provides;
The process chart that passes through SLAA realization PEMP management that Fig. 6 provides for the embodiment of the invention four;
The handling process of passing through CWMP realization PEMP management that Fig. 7 provides for the embodiment of the invention five.
Embodiment
In embodiments of the present invention, higher level's network equipment distribution address prefix and Prefix Expansion management strategy (PEMP, Prefix Extend Management Policy), comprise corresponding relation between strategy sign and the address prefix spreading parameter in the described Prefix Expansion management strategy.The Prefix Expansion discharge device is collected described address prefix and Prefix Expansion management strategy, and the acquisition strategy sign, obtains corresponding address prefix spreading parameter according to the described Prefix Expansion management strategy of strategy sign inquiry.Then, utilize address prefix after the expansion to described undernet devices allocation address or assigned address prefix again.
Further, the policy manager of higher level's network equipment is by policy control agreement distribution Prefix Expansion management strategy.
Further, described PEMP comprises: strategy sign and address prefix spreading parameter corresponding to described strategy sign, the strategy sign comprises service identification or interface identifier etc.
Further, described PEMP comprises that also identifying corresponding address prefix spreading parameter according to strategy expands described address prefix, for example: the continuous binary numeral that adds preseting length in the back of address prefix.
Further, the Prefix Expansion discharge device obtains respectively address prefix and PEMP from different higher level's network equipments; Perhaps, from same higher level's network equipment, obtain address prefix and PEMP.
Further, the Prefix Expansion discharge device can also utilize address prefix after the expansion to the local interface configuration address.
The embodiment of the invention can make the Prefix Expansion discharge device to undernet devices allocation address or the prefix of appointment become controlled and orderly, greatly improved network management capabilities.
For ease of the understanding to the embodiment of the invention, be further explained explanation below in conjunction with accompanying drawing as an example of several specific embodiments example, and each embodiment does not consist of the restriction to the embodiment of the invention.
Embodiment one
The management system of a kind of address prefix distribution that this embodiment provides, as shown in Figure 2, this system comprises: Prefix Expansion discharge device and higher level's network equipment further can comprise undernet equipment.
The Prefix Expansion discharge device is positioned at the border of higher level's network equipment and undernet equipment, and the Prefix Expansion discharge device is by link connection undernet equipment and higher level's network equipment.The Prefix Expansion discharge device comprises: RG, customer premises equipment, CPE (CPE, Customer Premise Equipment), radio access point (AP, Access Point,), wireless base station (BS, Base station) etc., undernet equipment comprises the PC main frame, set-top box (STB, Set Top Box), integrated access equipment (IAD, Integrated Access Device), portable terminal etc., higher level's network equipment comprises policy manager, address manager etc., this policy manager comprises: Automatic Configuration Server (ACS, AutomaticConfiguration Server) or network access server (NAS, Network Access Server) or wideband network gateway (BNG, Broadband Network Gateway) or Dynamic Host Configuration Protocol server or IP edge router etc., this address manager comprises DHCP server, IP edge router etc.
The Prefix Expansion discharge device obtains address prefix as the prefix request router from the address manager as the prefix delegation router, obtains PEMP from policy manager, and this PEMP is used for instructing or control Prefix Expansion discharge device carries out Prefix Expansion.Above-mentioned policy manager and address manager can be arranged in same equipment, and then the Prefix Expansion discharge device obtains PEMP and address prefix from same higher level's network equipment.
Then, the Prefix Expansion discharge device is further expanded the address prefix that obtains according to the PEMP that obtains, utilizes the address prefix after the expansion to be undernet devices allocation address or assigned address prefix again.For example: RG obtains PEMP from policy manager, obtain n bit addresses prefix (Prefix/n) from address manager, RG is k bit addresses prefix (Prefix/k) or 64 bit addresses prefixes (Prefix/64) according to PEMP expansion n bit addresses prefix, then RG is undernet devices allocation IP address or assigned address prefix according to k bit addresses prefix (Prefix/k), and RG can also be RG local interface configuration of IP address according to k bit addresses prefix (Prefix/k) or 64 bit addresses prefixes (Prefix/64) further.
The management of policy manager usage policy control protocol is distributed to the PEMP of Prefix Expansion discharge device, specifically comprise: policy manager from this locality or strategic server or aaa server etc. obtain PEMP, then described PEMP is added in the policy control protocol message as policy control protocol message parameter, sending strategy control protocol message is to the Prefix Expansion discharge device.This policy control agreement comprises DHCP agreement or Neighbor Discovery Protocol (ND:Neighbor Discovery) or terminal management agreement TR-069 (CWMP, CPE WAN Management Protocol) agreement or CAPWAP (Configuration andProvisioning for Wireless Access Points, radio access point configuration deployment agreement) or OMCI (ONT Management and Control Interface, Optical Network Terminal control and management interface protocol) or Simple Network Management Protocol (SNMP, Simple Network ManagementProtocol) or Access Node Control Protocol (ANCP, Access Node Control Protocol) or peer-peer protocol (PPP, Point-to-Point Protocol) or PANA (Protocol forCarrying Authentication for Network Access, network access authentication bearing protocol) etc.On specific implementation, can be at dhcp message (Solicit, the Advertise of DHCP agreement, RepIy) increase Option (option) in, or in the route requests of ND agreement/broadcasting (RouterSolicitation/Advertisement) message, increase Option, or at the IP control protocol (IPCP of ppp protocol, IP Control Protocol) increase option in the message, described Option is used for the PEMP management.
Above-mentioned PEMP can be by the policy manager flexible customization, and is kept in higher level's network equipments such as strategic server or aaa server.For example: template (Profile) subitem that PEMP can be used as the subscriber is kept on the aaa server, and when the user was attached to network, policy manager obtained PEMP from the booking reader's of aaa server template, then was handed down to the user.
The form of above-mentioned PEMP generally comprises strategy sign and spreading parameter etc., and the strategy sign generally comprises service identification or interface identifier etc., and concrete form is decided on specific implementation.
For example, the form of a kind of PEMP that arranges according to service identification as described in Table 2,
Table 2: according to the PEMP of service identification setting
| Service identification | Spreading parameter (expanding value/extension length or binary value) |
| High speed Internet access (HSI) | X/m or b1 (as: 1/5 or 00001) |
| Internet television (IPTV) | Y/m or b2 (as: 2/5 or 00010) |
| IP phone (VoIP) | Z/m or b3 (as: 3/5 or 00011) |
X in the above-mentioned table 2, y and Z represent that different business identifies corresponding expanding value, and m represents the length expanded, and b1, b2 and b3 represent that different business identifies corresponding continuous binary sequence value.For example: main frame sends service identification to RG by Option60 or the User Class Option (user type option) of dhcp message, then RG obtains corresponding PEMP spreading parameter (as: x/m or b1) according to the strategies such as service identification sign, (as: prefix of RG application is 2002:db8:200:100: :/56 according to PEMP spreading parameter extended address prefix, x/m be 1/5 or b1 be 00001, then with prefix 2002:db8:200:100: :/56 are converted into Binary Zero 0100000000000100000110110111000000000100000000000000001, prefix after the expansion is 0,010,000,000,000,010 0,000,110,110,111,000 00000010000000000000000100001, be 2002:db8:200:108: :/61), utilize address prefix after the expansion to host assignment address or specified prefix again.
A kind of address structure schematic diagram that distributes according to the above-mentioned PEMP that arranges according to service identification as shown in Figure 3.RG expands this prefix addresses after obtaining the prefix addresses of n (as: 56) bit, adds the m Bit data at the back of this prefix addresses Right Aligns.Then, be the IPV6 address of undernet devices allocation 128 bits or assigned address prefix again according to the prefix addresses of n+m bit, the interface flag that is used for expression undernet equipment in the IPV6 address of 128 bits except the bit after the prefix addresses of said n+m bit, this interface flag is generated according to interface message by undernet equipment, such as ethernet mac (Medium Access Control, the media access control) address generation according to the undernet equipment interface.The m bit of above-mentioned expansion can identify by identification service, and the business in higher level's network equipment presents point (POP, Point Of Presence) router can be according to the identification of the m bit business domains in the IP address and service control.
The form of a kind of PEMP that arranges according to interface identifier as described in Table 3.
Table 3: the PEMP that arranges according to the interface identifier of Prefix Expansion discharge device
| Interface identifier | Spreading parameter (expanding value/extension length or binary value) |
| LAN0 | A/m or b1 (as: 00001000) |
| LAN1 | B/m or b2 (as: 00010000) |
| LAN2 | C/m or b3 (as: 00011000) |
| WAN | D/m or b4 (for example: 2002:db8:200:100 ∷/64 are expressed as the global I PV6 address that wan interface distributes a prefix 2002:db8:200:100) |
A in the above-mentioned table 3, b and c represent that distinct interface identifies corresponding expanding value, and m represents the length expanded, and b1, b2 and b3 represent that distinct interface identifies corresponding binary sequence value.Such as: RG obtains corresponding PEMP spreading parameter (as: a/m or b1) according to the strategies such as interface identifier sign, (as: prefix of RG application is 2002:db8:200:100: :/56 according to PEMP spreading parameter extended address prefix, a/m be 1/8 or b1 be 00001, then with prefix 2002:db8:200:100: :/56 are converted into Binary Zero 0,100,000,000,000,100,000,110,110,111,000 0,000,001,000,000,000 00000001, prefix after the expansion is 0,010,000,000,000,010 0,000,110,110,111,000 00000010000000000000000100001000, be 2002:db8:200:108: :/64), RG can be kept at the address prefix of expansion in the address pool.Then RG receives the dhcp message of main frame transmission or the RS message of SLAA, RG is according to the interface identifier of receiving dhcp message or RS message, obtain address prefix after the corresponding expansion according to interface identifier, then according to the address prefix after the expansion of correspondence to host assignment address or specified prefix again.RG can also obtain the local interface sign, according to the PEMP spreading parameter that interface identifier is corresponding address prefix is expanded, and the address prefix after the utilization expansion is to local interface (WAN or LAN) configuration of IP V6 address
After above-mentioned PEMP extended address prefix, the Prefix Expansion discharge device can distribute address or assigned address prefix again to undernet according to business or interface etc., higher level's network equipment can distribute the undernet below business or the distinct interface by address prefix to be distinguished or identifies, the address prefix that different business is corresponding different, the same business has identical business domains.Higher level's network equipment can carry out unified control and management to the flow of undernet equipment according to address prefix, such as disposing QoS (service quality) strategy or data flow gate etc. being set.
The Prefix Expansion discharge device of this embodiment provides a kind of management devices as address prefix distribution as shown in Figure 4, comprises such as lower module:
Acquisition of information module 41 is used for obtaining address prefix and PEMP, comprises the corresponding relation between strategy sign and the address prefix spreading parameter among the described PEMP;
Address administration module 42, be used for the acquisition strategy sign, obtain corresponding address prefix spreading parameter according to the described Prefix Expansion management strategy of strategy sign inquiry, according to described address prefix spreading parameter described address prefix is expanded, utilized address prefix after the expansion to described undernet devices allocation address or assigned address prefix again.Described undernet equipment comprises: PC main frame, STB or IAD etc.
This device can also comprise:
Information storage module 43 is used for storing address prefix and the PEMP that described acquisition of information module is obtained.
Described acquisition of information module 41 specifically comprises:
Address prefix acquisition module 411 is used for obtaining address prefix from the higher level's network equipment as address manager, and described higher level's network equipment as address manager comprises: Dynamic Host Configuration Protocol server, IP edge router etc.;
Prefix Expansion management strategy acquisition module 412 is used for obtaining PEMP from the higher level's network equipment as policy manager, and described higher level's network equipment as policy manager comprises: ACS, NAS, BNG, Dynamic Host Configuration Protocol server or IP edge router etc.
Described address administration module concrete 43 comprises:
Address prefix expansion module 431 is used for the acquisition request strategy sign according to undernet equipment, and described strategy sign comprises the service identification of undernet equipment or connects the interface identifier of undernet equipment; Perhaps, according to the interface identifier acquisition strategy sign of local device, obtain corresponding address prefix spreading parameter according to the described Prefix Expansion management strategy of strategy sign inquiry, according to described address prefix spreading parameter the described address prefix that obtains is expanded;
Allocation manager module 432 be used for to utilize address prefix after the expansion to the interface assignment address of described undernet equipment or local device or assigned address prefix again.
Described device comprises: RG, CPE, AP or wireless base station BS etc.
Embodiment two
The handling process of passing through Dynamic Host Configuration Protocol server and aaa server realization PEMP management that this embodiment provides, as shown in Figure 5, wherein Host is main frame, RG is the Prefix Expansion discharge device; NAS is policy manager; Dynamic Host Configuration Protocol server is address manager; Aaa server can be responsible for providing PEMP, and described PEMP can be that aaa server obtains from other equipment, also can generate at aaa server; Main frame (Host) is the undernet equipment of Prefix Expansion discharge device, and concrete processing procedure comprises following treatment step:
The RG of step 51, integrated dhcp client sends DHCP Solicit message to NAS, can carry the indication informations such as PEMP management indication parameter (such as the interface identifier tabulation of RG or the tabulation of RG service identification) and/or prefix assignment indication option (IA-PD Option) in the DHCP Solicit message, this indication information can carry by the DHCP option in the expansion DHCP Solicit message.Above-mentioned prefix assignment indication option is used for the request address prefix, and PEMP management indication parameter is used for request PEMP.
After the NAS of step 52, integrated DHCP relay receives the DHCP Solicit message that RG sends, this DHCP Solicit message of buffer memory, access to RG authenticates according to DHCP Solicit message, as: NAS sends Access Request message to aaa server, and the request aaa server authenticates the access of this RG.NAS can add PEMP management indication parameter and/or the prefix assignment indication option from DHCP Solicit message extraction the Access Request message to, PEMP management indication parameter and/or prefix assignment indication option can be mapped to the TLV (TypeLength Value, type lengths values) of the Access Request message of expansion.
After step 53, aaa server are received the Access Request message of NAS transmission, after authentication is passed through to RG, from booking reader's template, obtain the PEMP of RG according to above-mentioned indication information.Then, PEMP is carried in the Access Accept message, sends this Access Accept message to NAS.PEMP can be mapped among the TLV of Access Accept message of expansion.
Step 54, NAS receive above-mentioned Access Accept message, obtain and this AccessAccept message of buffer memory in the PEMP that carries, then to the above-mentioned DHCPSolicit message of Dynamic Host Configuration Protocol server forwarding cache.
After step 55, Dynamic Host Configuration Protocol server are received DHCP Solicit message, send as the DHCP Advertise message that responds to NAS.
After step 57, RG receive above-mentioned DHCP Advertise message, send DHCPrequest message to NAS.
After step 58, NAS receive DHCP request message, transmit this DHCPrequest message to Dynamic Host Configuration Protocol server.
After step 59, Dynamic Host Configuration Protocol server are received DHCP request message, distribute address prefix to RG, then address prefix is carried in the DHCP Reply message, send this DHCP Reply message to NAS.
After step 510, NAS received above-mentioned DHCP Reply message of having carried address prefix, the PEMP with buffer memory added in the DHCP Reply message as option again, transmitted DHCP Reply message to RG.
NAS also can add PEMP in the above-mentioned DHCP Advertise message to as o ption, thereby first independent PEMP is sent to RG.
After step 511, RG receive above-mentioned DHCP Reply message, obtain and store the PEMP and the address prefix that carry in this DHCP Reply message.
RG is according to the acquisition request strategy sign of undernet equipment, and described strategy sign comprises the service identification of undernet equipment or connects the interface identifier of undernet equipment.Then, RG obtains corresponding address prefix spreading parameter according to the above-mentioned PEMP of strategy sign inquiry, according to described address prefix spreading parameter described address prefix is expanded.
RG can also obtain the local interface sign, according to local interface sign acquisition strategy sign.Above-mentioned PEMP obtains corresponding address prefix spreading parameter according to the inquiry of strategy sign, according to described address prefix spreading parameter described address prefix is expanded.Address prefix after the utilization expansion is to local interface (WAN or LAN) configuration of IP V6 address.
Step 512, RG utilize address prefix after the expansion by DHCP or SLAA to host assignment address or assigned address prefix again.For example: main frame sends service identification to RG by Option60 or the User ClassOption (user type option) of dhcp message, then RG obtains corresponding PEMP spreading parameter according to the strategies such as service identification sign, according to PEMP spreading parameter extended address prefix, the address prefix after the utilization expansion is to the host assignment address.The interface of the dhcp message that RG can also be by receiving main frame or the RS message of SLAA obtains corresponding PEMP spreading parameter as the strategy sign.
Embodiment three
The handling process of passing through SLAA realization PEMP management that this embodiment provides as shown in Figure 6, comprises following treatment step:
The Router Solicit message that step 61, RG send SLAA is to access node (AN), and this message can be carried PEMP management indication parameter, and this PEMP management indication parameter can carry by the option of expansion RouterSolicit message.
Step 62, AN transmit this Router Solicit message to NAS after receiving the above-mentioned Router Solicit message of RG transmission.
After step 63, NAS receive Router Solicit message, from this locality or aaa server or strategic server obtain PEMP, NAS can also manage the strategy signs such as the service identification of indication parameter or interface identifier and generate PEMP according to PEMP.NAS returns described RG and distributes address prefix.
Then, NAS adds above-mentioned PEMP and address prefix in the RA message to as option, then sends this RA message to RG.
After step 64, RG receive above-mentioned RA message, obtain and store PEMP and address prefix in this RA message.
RG is according to the acquisition request strategy sign of undernet equipment, and described strategy sign comprises the service identification of undernet equipment or connects the interface identifier of undernet equipment.Then, RG obtains corresponding address prefix spreading parameter according to the above-mentioned PEMP of strategy sign inquiry, according to described address prefix spreading parameter described address prefix is expanded.
RG can also obtain the local interface sign, according to local interface sign acquisition strategy sign.Above-mentioned PEMP obtains corresponding address prefix spreading parameter according to the inquiry of strategy sign, according to described address prefix spreading parameter described address prefix is expanded.Address prefix after the utilization expansion is to local interface (WAN or LAN) configuration of IP V6 address.
Step 65, RG utilize address prefix after the expansion to host assignment address or assigned address prefix again.RG can be by DHCP or SLAA to host assignment address or assigned address prefix again.
Embodiment four
The handling process of passing through CWMP realization PEMP management that this embodiment provides as shown in Figure 7, comprises following treatment step:
Step 71, RG obtain address prefix by DHCP PD from the Dynamic Host Configuration Protocol server as address-configuration server, and the address prefix that RG obtains is generally 56 or 48 (as: 2002:db8:200:100: :/56).
Step 72, RG obtain PEMP by CWMP (TR-069) from ACS, and this PEMP can be stored among the ACS, also can be stored in other strategic servers.In the present embodiment, if PEMP is stored in the aaa server, then ACS obtains PEMP from AAA.For example: ACS is responsible for PEMP is mapped to XML (Extensible Markup Language, the extending mark language) parameter of CWMP protocol message.
The execution sequence of above-mentioned steps 71 and step 72 does not have inevitable priority contact, can also carry out simultaneously.
PEMP or address prefix that step 73, RG storage are obtained, then, RG can also obtain the local interface sign, according to the PEMP spreading parameter that interface identifier is corresponding address prefix is expanded, and the address prefix after the utilization expansion is to local interface (WAN or LAN) configuration of IP V6 address;
Step 74, RG utilize address prefix after the expansion to host assignment address or assigned address prefix again.
Each embodiment of the invention described above is applicable to more assigning process of the IP address of highest version of IPv6, IPv9 and other.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in above-described embodiment method, to come the relevant hardware of instruction to finish by computer program, described program can be stored in the computer read/write memory medium, this program can comprise the flow process such as the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, ROM) or random store-memory body (Random Access Memory, RAM) etc.
In sum, the embodiment of the invention has solved the unordered problem of Prefix Expansion discharge device to undernet devices allocation address the time effectively, can make the Prefix Expansion discharge device according to predetermined PEMP to undernet devices allocation IP address or assigned address prefix again, so that becoming of Prefix Expansion discharge device is controlled and orderly, greatly improved network management capabilities.
The embodiment of the invention can make operator according to flexible customization PEMP such as service identification, interface identifier, for the address assignment of the undernet equipment in the networks such as home network, Service control etc. provide very large administrative convenience.
The above; only for the better embodiment of the present invention, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (7)
1. the management method of an address prefix distribution is characterized in that, comprising:
Acquisition strategy sign and address prefix, described strategy sign are according to the acquisition request of undernet equipment, and perhaps, described strategy sign is that the interface identifier according to local device obtains; Described strategy sign comprises the service identification of undernet equipment or connects the interface identifier of undernet equipment;
The Prefix Expansion management strategy that inquiry obtains in advance according to the strategy sign is obtained corresponding address prefix spreading parameter, described Prefix Expansion management strategy obtains from policy manager by the policy control agreement, comprises the corresponding relation between strategy sign and the address prefix spreading parameter in the described Prefix Expansion management strategy;
According to described address prefix spreading parameter described address prefix is expanded;
Utilize address prefix after the expansion to distribute address or specified prefix again.
2. the management method of address prefix distribution according to claim 1 is characterized in that, described policy control agreement comprises DHCP, terminal management agreement, point-to-point protocol or Neighbor Discovery Protocol.
3. the management method of address prefix distribution according to claim 1 is characterized in that, describedly according to described address prefix spreading parameter described address prefix is expanded, and comprising:
Add the numerical value of preseting length in the back of described address prefix according to described Prefix Expansion parameter.
4. the management devices of an address prefix expansion distribution is characterized in that, comprising:
The acquisition of information module is used for obtaining address prefix and Prefix Expansion management strategy, comprises the corresponding relation between strategy sign and the address prefix spreading parameter in the described Prefix Expansion management strategy;
The address administration module, be used for the acquisition strategy sign, obtain corresponding address prefix spreading parameter according to the described Prefix Expansion management strategy of strategy sign inquiry, according to described address prefix spreading parameter described address prefix is expanded, utilized address prefix after the expansion to distribute address or assigned address prefix again;
Described acquisition of information module comprises address prefix acquisition module and Prefix Expansion management strategy acquisition module:
The address prefix acquisition module is used for obtaining address prefix from the higher level's network equipment as address manager; Prefix Expansion management strategy acquisition module is used for obtaining the Prefix Expansion management strategy from the higher level's network equipment as policy manager;
Described address administration module comprises the address prefix expansion module:
The address prefix expansion module is used for the acquisition request strategy sign according to undernet equipment, and described strategy sign comprises the service identification of undernet equipment or connects the interface identifier of undernet equipment; Perhaps, according to the interface identifier acquisition strategy sign of local device, obtain corresponding address prefix spreading parameter according to the described Prefix Expansion management strategy of strategy sign inquiry, according to described address prefix spreading parameter the described address prefix that obtains is expanded.
5. the management devices of address prefix expansion distribution according to claim 4 is characterized in that, described device also comprises:
Information storage module is used for storing address prefix and the Prefix Expansion management strategy that described acquisition of information module is obtained.
6. according to claim 4 or the management devices of 5 described address prefixs expansion distribution, it is characterized in that, described address administration module also comprises:
The allocation process module is for interface assignment address or the assigned address prefix of the address prefix after the utilization expansion to described undernet equipment or local device.
7. the management system of an address prefix distribution is characterized in that, comprising:
Policy manager: be used for issuing the Prefix Expansion management strategy to address prefix expansion dispensing device, comprise the corresponding relation between strategy sign and the address prefix spreading parameter in the described Prefix Expansion management strategy;
Address manager: be used for to address prefix expansion dispensing device delegate address prefixes;
Address prefix expansion dispensing device, be used for the acquisition strategy sign, obtain corresponding address prefix spreading parameter according to the Prefix Expansion management strategy that the described policy manager of strategy sign inquiry issues, according to described address prefix spreading parameter described address prefix is expanded, utilized address prefix after the expansion to distribute address or specified prefix again; Described strategy sign is according to the acquisition request of undernet equipment, and perhaps, described strategy sign is that the interface identifier according to local device obtains; Described strategy sign comprises the service identification of undernet equipment or connects the interface identifier of undernet equipment.
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Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102238075A (en) * | 2010-05-05 | 2011-11-09 | 杭州华三通信技术有限公司 | IPv6 (Internet Protocol version 6) routing establishing method based on Ethernet Point-to-Point Protocol and access server |
| CN102377830A (en) * | 2010-08-13 | 2012-03-14 | Tcl集团股份有限公司 | IP (Internet Protocol) address configuration method |
| CN102624937B (en) * | 2011-01-28 | 2015-09-09 | 华为技术有限公司 | IP address configuration method, Apparatus and system |
| CN102694752B (en) * | 2011-03-21 | 2015-03-11 | 国基电子（上海）有限公司 | Gateway equipment |
| CN102340452B (en) * | 2011-10-14 | 2018-03-02 | 中兴通讯股份有限公司 | A kind of method and wireless device that route transmission is realized based on single IPv6 address prefixs |
| 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 |
| US9584467B2 (en) * | 2014-07-31 | 2017-02-28 | Qualcomm Incorporated | Technique to delegate prefixes to Wi-Fi clients connected to mobile access point routers |
| US9325663B2 (en) | 2014-09-15 | 2016-04-26 | Sprint Communications Company L.P. | Discovery of network address allocations and translations in wireless communication systems |
| US10200856B2 (en) | 2014-10-02 | 2019-02-05 | Sprint Communications Company L.P. | Content-delivery footprint and capabilities data transfer from wireless communication devices |
| US10015235B2 (en) | 2014-10-23 | 2018-07-03 | Sprint Communications Company L.P. | Distribution of media content to wireless communication devices |
| US9609489B2 (en) | 2014-10-24 | 2017-03-28 | Sprint Communications Company L.P. | Distribution of media content identifiers to wireless communication devices |
| US9967734B1 (en) | 2014-11-24 | 2018-05-08 | Sprint Communications Company, L.P. | Content delivery network request handling in wireless communication systems |
| CN106454500B (en) * | 2016-10-31 | 2019-09-10 | 北京小米移动软件有限公司 | The address distribution method and device of TV host |
| CN109005252A (en) * | 2018-08-24 | 2018-12-14 | 赛尔网络有限公司 | A kind of IPv6 address generating method, equipment, system and the medium of fictitious host computer |
| CN113542905B (en) * | 2020-04-22 | 2024-05-03 | 中国移动通信集团有限公司 | Address allocation method, gateway, set top box, equipment and storage medium |
| CN111586197B (en) * | 2020-04-23 | 2022-04-15 | 中国信息通信研究院 | Method and device for redistributing address prefixes |
| CN113691643A (en) * | 2020-12-11 | 2021-11-23 | 浙江十进制网络有限公司 | Data packet transmission conversion method, internet and data packet processing equipment |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101127727A (en) * | 2007-09-28 | 2008-02-20 | 电信科学技术研究院 | IP address configuration and mobile detection method for mobile IP |
-
2008
- 2008-09-12 CN CN2008101198527A patent/CN101674288B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101127727A (en) * | 2007-09-28 | 2008-02-20 | 电信科学技术研究院 | IP address configuration and mobile detection method for mobile IP |
Non-Patent Citations (1)
| Title |
|---|
| O. Troan etc."IPv6 Prefix Options for Dynamic Host Configuration Protocol (DHCP) version 6".《Network Working Group Request for Comments: 3633》.2003, |
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