CN104486457A - Address allocation method, address acquisition method, address allocation device, address acquisition device - Google Patents

Address allocation method, address acquisition method, address allocation device, address acquisition device Download PDF

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Publication number
CN104486457A
CN104486457A CN201410766245.5A CN201410766245A CN104486457A CN 104486457 A CN104486457 A CN 104486457A CN 201410766245 A CN201410766245 A CN 201410766245A CN 104486457 A CN104486457 A CN 104486457A
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China
Prior art keywords
mark
node
host
address
host machine
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Granted
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CN201410766245.5A
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Chinese (zh)
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CN104486457B (en
Inventor
陈山枝
胡博
李宁
王欢
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China Academy of Telecommunications Technology CATT
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China Academy of Telecommunications Technology CATT
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Priority to CN201410766245.5A priority Critical patent/CN104486457B/en
Publication of CN104486457A publication Critical patent/CN104486457A/en
Priority to PCT/CN2015/092106 priority patent/WO2016091009A1/en
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Publication of CN104486457B publication Critical patent/CN104486457B/en
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/40—Network security protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/45—Network directories; Name-to-address mapping
    • H04L61/4505—Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols
    • H04L61/4511—Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols using domain name system [DNS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/50—Address allocation
    • H04L61/5007—Internet protocol [IP] addresses
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/50—Address allocation
    • H04L61/5046—Resolving address allocation conflicts; Testing of addresses
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/26—Resource reservation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/11—Allocation or use of connection identifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/08—Mobility data transfer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2101/00—Indexing scheme associated with group H04L61/00
    • H04L2101/60—Types of network addresses
    • H04L2101/618—Details of network addresses
    • H04L2101/659—Internet protocol version 6 [IPv6] addresses

Abstract

The invention discloses an address allocation method, an address acquisition method, an address allocation device and an address acquisition device. The address allocation method comprises the following steps: receiving a network access request; allocating a host computer identity label or a host computer position label to a node requested to be accessed according to the network access request, wherein each of the host computer identity label and the host computer position label adopts an IPv6 address, a first address type label is contained in the IPv6 address as the host computer identity label, a second address type label is contained in the IPv6 address as the host computer position label, and the first address type label and the second address type label have different evaluation spaces; sending the host computer identity label or the host computer position label allocated for the node to an attribution domain mapping server of the node, so that the attribution domain mapping server of the node maintains the corresponding relation between the host computer identity label and the host computer position label of the node.

Description

A kind of address assignment, acquisition methods and device
Technical field
The present invention relates to network communication technology field, relate to a kind of address assignment, acquisition methods and device more specifically.
Background technology
Along with the development of mobile Internet, the characteristic of conventional internet is still there is in the communication process of existing mobile network, i.e. IP (Internet Protocol, procotol) address both as terminal identity mark with high-rise binding session, carry out again route and the forwarding of packet as terminal location mark, there is dual semanteme.This dual semanteme has very large limitation to support Host Mobility.
For mobility problem, IETF (Internet Engineering Task Force, Internet engineering duty group) proposes mobile IP protocol (MIP, Mobile IP Protocol) and improves one's methods.But, no matter mobile IPv 4 agreement, or mobile IPv 6 protocol, does not all change the intrinsic propesties of the dual semanteme in IP address, this means mobile IP protocol and improve one's methods thoroughly to solve the problem that in the mobile management of the Internet, identify label and station location marker define.
At present, global ip v4 address is about to exhaust, and IPv6 address will be the core address resource of Future Internet.Therefore, need the technology that a kind of identity attribute that can realize IPv6 address is separated with position attribution badly, solve IPv6 address to the problem of mobility support.
Summary of the invention
The embodiment of the present invention provides a kind of address assignment, acquisition methods and device, by arranging address style flag bit in IPv6 address, in order to distinguish this IPv6 address be host identities mark, or position of host machine mark, thus realize being separated of identify label and station location marker, support the continuity of main-machine communication in moving process.
The embodiment of the present invention provides a kind of address distribution method, comprising:
Receive network insertion request;
According to peer distribution host identities mark or position of host machine mark that described network insertion request is request access; Wherein, described host identities mark and described position of host machine mark are IPv6 address, and comprise the first address style mark in IPv6 address as host identities mark, comprise the second address style mark as in the IPv6 address that position of host machine identifies;
Send to the home domain mapping server of described node by for the host identities mark of described peer distribution or position of host machine mark, safeguard corresponding relation between the host identities mark of described node with position of host machine mark to make the home domain mapping server of described node.
Further, described reception network insertion request, comprising:
The host identities mark that mobile anchor point receiving node sends distributes request, and described node-home is in described mobile anchor point;
Described is described peer distribution host identities mark according to described network insertion request, comprising:
Described mobile anchor point distributes request for described peer distribution host identities mark according to described identify label, the host identities of described node mark is carried on response message and sends to described node, and the host identities of described node mark is used as the position of host machine mark of described node simultaneously;
The described home domain mapping server host identities mark for described peer distribution being sent to described node, comprising:
Host identities mark for described peer distribution is sent to the home domain mapping server of described node by described mobile anchor point, and indicate the home domain mapping server of described node to store host identities mark and the position of host machine mark of described node, wherein, the position of host machine mark of described node identifies identical with the host identities of described node.
Further, described reception network insertion request, comprising:
The access request that mobile anchor point receiving node sends, described node does not belong to described mobile anchor point;
Described is described peer distribution position of host machine mark according to described network insertion request, comprising:
Described mobile anchor point is described peer distribution position of host machine mark according to described access request;
The described home domain mapping server position of host machine mark for described peer distribution being sent to described node, comprising:
Position of host machine mark for described peer distribution is sent to the home domain mapping server of described node by described mobile anchor point, and indicates the home domain mapping server of described node to be current distributed position of host machine mark by the position of host machine identification renewal corresponding to the host identities of described node mark.
Further, described by for described peer distribution host identities mark or position of host machine mark send to the home domain mapping server of described node before, also comprise:
Resolve DNS system to global domain name and send inquiry request, in described inquiry request, carry the global host name of described node;
Receive the inquiry response that described overall DNS system returns, in described inquiry response, carry the Internet protocol IP address of the home domain mapping server of the described node that described overall DNS system inquires according to the management domain domain name part in the global host name of described node.
Further, described is described peer distribution host identities mark according to described network insertion request, comprising:
According to described network insertion request, be described node selection host identities mark from the address pool of host identities mark;
Described is described peer distribution position of host machine mark according to described network insertion request, comprising:
According to described network insertion request, be described node selection position of host machine mark from the address pool of position of host machine mark;
Wherein, the quantity of preallocated second address style mark in the address pool that in the address pool of host identities mark, quantity and the position of host machine of preallocated first address style mark identify, according to setting ratio setting.
Further, also be provided with reserved address pool, described reserved address pool comprises host identities mark and position of host machine mark, wherein, the quantity of preallocated first address style mark and the quantity of the second address style mark in reserved address pool, according to described setting ratio setting;
The method also comprises:
The first address style mark reserved in reserved address pool is added in the address pool of host identities mark, and/or, the second address style mark reserved in reserved address pool is added in the address pool of position of host machine mark.
Further, comprise address style territory in the prefix addresses block of IPv6 address, described address style territory is for carrying described first address style mark or described second address style mark.
A kind of address acquiring method of the embodiment of the present invention, the method comprises:
Obtain the global host name of node;
Host identities mark and the position of host machine mark of described node is obtained according to the global host name of described node; Described host identities mark and described position of host machine mark are IPv6 address, and as host identities mark IPv6 address in comprise the first address style mark, comprise the second address style mark in IPv6 address as position of host machine mark, described first address style mark and the second address style mark have different valued space.
Further, the described global host name according to described node obtains host identities mark and the position of host machine mark of described node, comprising:
Resolve DNS system to global domain name and send the first inquiry request, in described first inquiry request, carry the global host name of described node;
Receive the first inquiry response that described overall DNS system returns, in described first inquiry response, carry the Internet protocol IP address of the domain mapping server that described overall DNS system inquires according to the management domain domain name part in the global host name of described node;
According to the domain mapping server inquired IP address, the home domain mapping server to described node sends the second inquiry request, carries the global host name of described node in described second inquiry request;
The second inquiry response that the home domain mapping server receiving described node returns, the home domain mapping server carrying described node in described second inquiry response identifies and position of host machine mark according to the host identities that the local host name partial query in the global host name of described node arrives.
Further, the global host name of described acquisition node, comprising:
Receive the connection setup request that calling node sends, obtain the global host name of the called node carried in described connection setup request;
Obtain after the host identities mark of described called node and position of host machine identify according to the global host name of described called node, described method also comprises:
The host identities of described calling node mark is sent to described called node, the host identities of described called node mark is sent to described calling node, to make to establish a communications link between described called node and described calling node.
The embodiment of the present invention provides a kind of address distributing device, comprising:
Receiving element, for receiving network insertion request;
Allocation units, for according to described network insertion request being peer distribution host identities mark or the position of host machine mark of request access; Wherein, described host identities mark and described position of host machine mark are IPv6 address, and comprise the first address style mark in IPv6 address as host identities mark, comprise the second address style mark as in the IPv6 address that position of host machine identifies;
Maintenance unit, for sending to the home domain mapping server of described node by for the host identities mark of described peer distribution or position of host machine mark, safeguard corresponding relation between the host identities mark of described node with position of host machine mark to make the home domain mapping server of described node.
Further, the host identities mark that described receiving element sends specifically for: receiving node distributes request, and described node-home is in described mobile anchor point;
Described allocation units specifically for: distribute request for described peer distribution host identities mark according to described identify label, and the host identities of described node mark used as the position of host machine mark of described node simultaneously; The host identities of described node mark is carried on response message and sends to described node;
Described maintenance unit specifically for: the host identities mark for described peer distribution is sent to the home domain mapping server of described node, and indicate the home domain mapping server of described node to store host identities mark and the position of host machine mark of described node, wherein, the position of host machine mark of described node identifies identical with the host identities of described node.
Further, the access request that described receiving element sends specifically for: receiving node, described node does not belong to described mobile anchor point;
Described allocation units specifically for: according to described access request be described peer distribution position of host machine mark;
Described maintenance unit specifically for: the position of host machine mark for described peer distribution is sent to the home domain mapping server of described node, and indicate the home domain mapping server of described node the host identities of described node is identified corresponding to position of host machine identification renewal be current distributed position of host machine mark.
Further, described maintenance unit also for: resolve DNS system to global domain name and send inquiry request, in described inquiry request, carry the global host name of described node;
Receive the inquiry response that described overall DNS system returns, in described inquiry response, carry the Internet protocol IP address of the home domain mapping server of the described node that described overall DNS system inquires according to the management domain domain name part in the global host name of described node.
Further, described allocation units specifically for: according to described network insertion request, from host identities mark address pool be described node selection host identities identify; Or, according to described network insertion request, be described node selection position of host machine mark from the address pool of position of host machine mark;
Wherein, the quantity of preallocated second address style mark in the address pool that in the address pool of host identities mark, quantity and the position of host machine of preallocated first address style mark identify, according to setting ratio setting.
Further, also be provided with reserved address pool, described reserved address pool comprises host identities mark and position of host machine mark, wherein, the quantity of preallocated first address style mark and the quantity of the second address style mark in reserved address pool, according to described setting ratio setting;
Also comprise adjustment unit, described adjustment unit is used for: added to by the first address style mark reserved in reserved address pool in the address pool of host identities mark, and/or, the second address style mark reserved in reserved address pool is added in the address pool of position of host machine mark.
Further, comprise address style territory in the prefix addresses block of IPv6 address, described address style territory is for carrying described first address style mark or described second address style mark.
The embodiment of the present invention provides a kind of address acquisition unit, and this device comprises:
First acquiring unit, for obtaining the global host name of node;
Second acquisition unit, for obtaining host identities mark and the position of host machine mark of described node according to the global host name of described node; Described host identities mark and described position of host machine mark are IPv6 address, and as host identities mark IPv6 address in comprise the first address style mark, comprise the second address style mark in IPv6 address as position of host machine mark, described first address style mark and the second address style mark have different valued space.
Further, described second acquisition unit have for:
Resolve DNS system to global domain name and send the first inquiry request, in described first inquiry request, carry the global host name of described node;
Receive the first inquiry response that described overall DNS system returns, in described first inquiry response, carry the Internet protocol IP address of the domain mapping server that described overall DNS system inquires according to the management domain domain name part in the global host name of described node;
According to the domain mapping server inquired IP address, to described node home domain mapping server send inquiry request, carry the global host name of described node in described inquiry request;
The second inquiry response that the home domain mapping server receiving described node returns, the home domain mapping server carrying described node in described second inquiry response identifies and position of host machine mark according to the host identities that the local host name partial query in the global host name of described node arrives.
Further, described first acquiring unit specifically for: receive calling node send connection setup request, obtain the global host name of the called node carried in described connection setup request;
Also comprise:
Transmitting element, for after described second acquisition unit is according to the host identities mark of the described called node of global host name acquisition of described called node and position of host machine mark, the host identities of described calling node mark is sent to described called node, the host identities of described called node mark is sent to described calling node, to make to establish a communications link between described called node and described calling node.
In the embodiment of the present invention, host identities mark and the position of host machine mark of node are IPv6 address, and as host identities mark IPv6 address in comprise the first address style mark, the second address style mark is comprised in IPv6 address as position of host machine mark, thus IPv6 address is divided grammatically the while of supporting ambulant from self, also solve the problem of the dual semanteme in IP address.
Accompanying drawing explanation
Fig. 1 is global unicast address form schematic diagram in prior art;
Fig. 2 is the IPv6 address distribution method schematic diagram in the embodiment of the present invention;
A kind of address distribution method schematic diagram that Fig. 3 provides for the embodiment of the present invention;
Mapping Resolution method flow diagram in a kind of address distribution method that Fig. 4 provides for the embodiment of the present invention;
Fig. 5 provides the method flow schematic diagram of a kind of node access belonging territory mobile anchor point for the embodiment of the present invention;
Fig. 6 provides a kind of node to access the method flow schematic diagram of visit territory mobile anchor point for the embodiment of the present invention;
Fig. 7 is twice Mapping Resolution method schematic diagram in the embodiment of the present invention;
Fig. 8 is twice Mapping Resolution method flow schematic diagram in the embodiment of the present invention;
The method flow schematic diagram that Fig. 9 provides a kind of node 1 to establish a communications link with node 2 for the embodiment of the present invention;
Figure 10 provides a kind of node 1 to the method flow schematic diagram of node 2 initiating communication for the embodiment of the present invention;
Figure 11 provides a kind of node 1 with node 2 communication process for the embodiment of the present invention, and the position of host machine of node 1 identifies the method flow schematic diagram changed;
A kind of address distributing device schematic diagram that Figure 12 provides for the embodiment of the present invention;
A kind of address acquisition unit schematic diagram that Figure 13 provides for the embodiment of the present invention.
Embodiment
Operator is from higher level RIR/ISP (Regional Internet Register/Internet Service Provider, regional Internet registration management mechanism/ISP) obtain the IPv6 prefix addresses block of N/ after, planning, load state etc. can be disposed according to self, before IPv6 address assignment, prefix addresses block is reasonably encoded, wherein, N represents prefix length.
Fig. 1 shows RFC 4291 pairs of IPv6 addresses and divides obtained global unicast address general format, and wherein, Global routing selects prefix to take n bit; Interior subnet of standing takies 64-n, and (namely 64 subtract n) individual bit; Interface identifier takies 64 bits.Wherein, global routing prefix refers to the prefix value distributing to certain website, and described website is the cluster of subnet or link; In standing, subnet refers to the identifier of a certain subnet or link in this website of mark.
Just mobility is supported beginning from division for making IPv6 address, in the embodiment of the present invention, from IPv6 address, take out T bit, address style mark be set with this T bit, for identify this IPv6 address as host identities mark carry out distributions still as position of host machine identify distribute.Preferably, a continuous T bit can be taken out to arrange address style mark from the prefix addresses block IPv6 address.
Wherein, host identities mark is used for unique identification main frame, forms the accessing points of Host Transfer layer together with port numbers; Distributed by Master Home territory couple in router, the overall situation is unique, constant at main frame life cycle internal fixtion; In the home network, host identities mark can overall route.Position of host machine mark, as the foundation determining certain main frame place link, is also the foundation that router determines to divide into groups whither to forward simultaneously; By visited network couple in router dynamic assignment, change with the change of main frame place Network Access Point; Position of host machine mark can overall route.
Fig. 2 shows the concrete division form of a kind of embodiment of the present invention for IPv6 address.IPv6 address be divided into n-bit " global routing prefix " territory, (64 subtract " in the standing subnet " territory of n) bit and " interface identifier " territory of 64 bits.Wherein, " in standing subnet " territory is used for the identifier of a certain subnet or link in this website of bearing identification, takies C bit; " interface identifier " territory is used for bearing interface identifier, and interface identifier is the form of interface identifier in retention criteria global unicast address still, takies 64 bits." global routing prefix " territory is divided into " access address " territory, " address style " territory and " station code " territory three part.
Carry access address in " access address " territory, the length in this territory is the length N of the prefix addresses block that RIR/ISP distributes.Access address refer to subject of operation from higher level RIR/ISP divide and the N/ prefix addresses block put on record, such as: the address blocks put on record such as three large operators, education network, science and technology net.
Carry station code in " station code " territory, the length in this territory is S bit, S >=1.Station code is each website level coding, namely for the identifier of each website under identifying certain subject of operation.
Address style mark is carried in " address style " territory, the length in this territory is T bit, the value of T and access address, station code, stand in the length of subnet and interface identifier relevant, can be determined according to own load situation by operator, the value of T is minimum is 1, N+S+T+C=64 bit.
Address style mark comprises the first address style mark, the second address style mark, wherein, when identifying for peer distribution host identities, comprises the first address style mark in the host identities mark of distributing; When identifying for peer distribution position of host machine, in the position of host machine mark of distributing, comprise the second address style mark; Described first address style mark and the second address style mark have different values, thus can realize the vertical partial decoupling of IPv6 address space.Such as, the first address style mark can value be the 1000, second address style mark can value be 1100.
Further, consider the difference that different website load (such as number of nodes) and mobility require, the embodiment of the present invention can come quantity for this site configuration first address style mark or span according to the quantitative proportion of the mobile node comprised in website and stationary nodes, and the configuration quantity of the second address style mark or span, thus set the ratio of the quantity that the quantity of assignable host identities mark and assignable position of host machine identify.
Such as, certain subject of operation has the IPv6 prefix block of 32/, and it has two websites: site A and site B.The preset negative carrying capacity of site A is 1.5 times of site B.If site A stationary nodes relative movement node is more, and is non-hot spot region; If mobile node is more relative to stationary nodes in site B, and mobile node influx and discharge relative equality.
Based on the form of the IPv6 address shown in Fig. 2, " access address " length is the length of the prefix block that subject of operation gets, therefore is 32 bits, and its occurrence N represents; After " address style mark " is located at " access address ", be set to 4 bits (namely 32bit ~ the 35bit of IPv6 address is set to address style mark), wherein, the address style mark of 4 bits has 16 values." station code " length is S bit, and " in standing subnet " length is C bit, S+C=28; Behind IPv6 address, 64 is " interface identifier ", represents with LID.
The span configuring the first address style mark is: 0000 ~ 0111 (0000,0001,0010,0011,0100,0101,0110,0111), has 8 values.
The span configuring the second address style mark is: 1000 ~ 1011 (1000,1001,1010,1011), have 4 values.
Like this, in this operator, the ratio of the quantity of preallocated first address style mark and the quantity of preallocated second address style mark is 2:1.Can draw thus: the ratio of the quantity that the quantity of assignable host identities mark and assignable position of host machine identify is 2:1.
In order to adjust the ratio of assignable host identities mark and/or position of host machine mark according to the change tread of the node in website, reserved address pool is provided with in the embodiment of the present invention, address in this reserved address pool both can identify as host identities, also can identify as position of host machine.When needs adjust assignable host identities mark, the first address style mark reserved in reserved address pool is added in the address pool of host identities mark; When needs adjust assignable position of host machine mark, the second address style reserved in reserved address pool is added in the address pool of position of host machine mark.
Such as, reserved address pool can be set.Wherein, in reserved address pool, the first address style mark use can be worked as in reserved part IPv6 address, and reserved other a part of IPv6 address can be worked as the second address style mark and be used.When needs adjust assignable host identities mark, the first reserved address style mark in reserved address pool can be added in the address pool of host identities mark, when needs adjust assignable position of host machine mark, the second reserved address style mark in reserved address pool can be added in the address pool of position of host machine mark.When needing the allocation proportion adjusting host identities mark and position of host machine mark, namely can adjust in the address pool of host identities mark can the quantity of distributing IP v6 address, or in the address pool of adjustment position of host machine mark can the quantity of distributing IP v6 address, also adjustable reserves the ratio of the quantity of the corresponding IPv6 address of the first address style mark in address pool and the quantity of the corresponding IPv6 address of the second address style mark.
Preferably, if the quantity that in the address pool that in the address pool of host identities mark, preallocated host identities mark and position of host machine identify, preallocated position of host machine identifies, proportionally m:1 is arranged, then the quantity of the corresponding IPv6 address of the first address style mark and the quantity of the corresponding IPv6 address of the second address style mark in reserved address pool, also can be arranged according to m:1.Like this, website can be made to expand got new host identities mark identify with position of host machine and be polymerized as far as possible in the future.
Further, in order to improve extensibility, also can using some values in the span of address style mark as retention in the embodiment of the present invention, these retentions be both not used as the first address style mark or its reserved value, also do not obtain reserved value as the second address style mark, but retain as later Function Extension use.
According to load capacity and the mobility requirement of above site A and site B, table 1 shows address-type identification into site A and site B configures and pond, host identities home address and pond, position of host machine home address.
Show 1.site A and pond, site B host identities home address and pond, position of host machine home address and distribute details
Because in site A, stationary nodes is relatively many, identify more so the host identities consumed identifies relative position of host machine, therefore identify three times of total amount for the total amount of host identities mark in the host identities mark pond of site A distribution is about position of host machine in position of host machine mark pond.Wherein, the first address style mark distributed for site A comprises: 0000,0001,0010; In the address pool of host identities mark, assignable address is expressed as: N 0000S C LID, N 0001S C LID, N 0010S C LID.The the second address style mark distributed for site A comprises: 1000; In the address pool of position of host machine mark, assignable address is expressed as: N 1000S C LID.
To identify with position of host machine be polymerized as far as possible to expand got new host identities mark siteA day afterwards, be the ratio that website A preallocated host identities mark identify with preallocated position of host machine in reserved address pool, identify with host identities preallocated in the address pool that host identities identifies identical with ratio that in address pool that position of host machine identifies, preallocated position of host machine identifies.Such as, for the address style that site A is reserved comprises: 0011,0100,0101,1001; Wherein, in reserve pool, the corresponding IPv6 address of the first address style mark comprises N 0011S C LID, N 0100S C LID, N 0101S C LID; In reserve pool, the corresponding IPv6 address of the second address style mark is: N 1001S C LID.
Because in site B, mobile node is relatively many, and the influx of mobile node is relative with discharge fair, need be thought of as the much more reserved interim position of host machine marks of visit mobile node.Therefore can be site B and distribute host identities mark by 1:1 and identify with position of host machine.Wherein, the first address style mark distributed for site B comprises: 0110; In the address pool of host identities mark, assignable address is expressed as: N 0110S C LID.The the second address style mark distributed for site B comprises: 1010; In the address pool of position of host machine mark, assignable address is expressed as: N 1010S C LID.
To identify with position of host machine be polymerized as far as possible to expand got new host identities mark siteB day afterwards, be the ratio that website B preallocated host identities mark identify with preallocated position of host machine in reserved address pool, identify with host identities preallocated in the address pool that host identities identifies identical with ratio that in address pool that position of host machine identifies, preallocated position of host machine identifies.Such as, for the address style that siteB is reserved comprises: 0111,1011; Wherein, in reserve pool, the corresponding IPv6 address of the first address style mark is: N 0111S C LID; In reserve pool, the corresponding IPv6 address of the second address style mark is: N 1011S C LID.
In the embodiment of the present invention, operator also retains a part of address type code, do not do the setting that concrete host identities mark identifies with position of host machine, later according to the actual demand of deployment scenario, this retention can be used as the conditional extensions coding of host identities or position of host machine, and the host identities mark of carrying out operator's entirety and position of host machine identify the adjustment of ratio or carry out expansion and distribute.Such as, in " address style " territory in IPv6 address, 1100 ~ 1111 is retention, wherein, namely N 1100S C LID, N1101S C LID, N 1110SC LID, N 1111S C LID may be used for position of host machine mark and distribute, and also may be used for host identities mark and distribute.
By describing above and can finding out, in the scope that the embodiment of the present invention allows based on the IPv6 criteria for classifying, arrange IPv6 address style mark, wherein, address style mark comprises the first address style mark, the second address style mark; First address style mark instruction IPv6 address can be used as host identities mark and distributes, and the second address style mark instruction IPv6 address can be used as position of host machine mark and distributes.The determination of described first address style mark and the second address style mark valued space, and first ratio of address style mark and the second address style mark, all can arrange flexibly and dynamic conditioning according to website situation, and first the ratio of address style mark and the second address style mark also can adjust flexibly according to the ratio of mobile node and stationary nodes, thus IPv6 address is divided grammatically the while of supporting ambulant from self, also solve the problem of the dual semanteme in IP address.
Based on above-mentioned IP v6 address programming method, the embodiment of the present invention additionally provides a kind of address distribution method.
See Fig. 3, for the embodiment of the present invention provides a kind of schematic flow sheet of address distribution method.This flow process can be performed by mobile anchor point.Described mobile anchor point disposes edge router level within the access network.
As shown in the figure, this flow process can comprise:
Step 101, receives network insertion request.
Step 102 is peer distribution host identities mark or the position of host machine mark of request access according to described network insertion request.Wherein, can draw according to above-mentioned IP v6 address programming method: described host identities mark and described position of host machine mark are IPv6 address, and as host identities mark IPv6 address in comprise the first address style mark, as position of host machine mark IPv6 address in comprise the second address style mark.
Step 103, send to the home domain mapping server of described node by for the host identities mark of described peer distribution or position of host machine mark, safeguard corresponding relation between the host identities mark of described node with position of host machine mark to make the home domain mapping server of described node.
Node in above-mentioned flow process can be mobile node, also can be stationary nodes.
Preferably, can the IP address of the first domain mapping server of the home domain of query node in step 102.Namely, by DNS system for GH (Global-Hostname, global host name) in management domain domain name part carry out parsing inquiry, to obtain the IP address of the DMS (Domain Mapping Server, domain mapping server) in node-home territory.
Specifically, the implementation of step 102 as shown in Figure 4, can comprise:
Step 1021: to overall DNS (Domian Name System, domain name system) send inquiry request, wherein, in inquiry request, carry the management domain domain name of described node, further, described management domain domain name and local host name composition global host name.
Wherein, global host name is used for unique identification user (individual or entity), applied for obtaining to authoritative institution by user, can bind with the true identity information of user, its form meets the definition of Fully QualifiedDomain Name (FQDN), is abbreviated as the form (i.e. LH@DN) of management domain domain name DN (DomainName)@local host name LH (Local Hostname) in the present invention.Wherein, LH can react user real identification information, and GH is the domain name of main frame place home domain.
Step 1022: receive the inquiry response that described overall DNS system returns, carries the IP address of the home domain mapping server of the described node that described overall DNS system inquires according to the management domain domain name part in the GH of described node in described inquiry response.
In the embodiment of the present invention by DNS system (but being not only confined to DNS system) for different management domains carries out parsing inquiry service, realize the Mapping Resolution of the internet IP address of DMS.
In order to the existing domain name analysis system of compatibility, only need by map entry < management domain domain name in each management domain, DMS IP> is registered in DNS system, and no longer in units of main frame, < domain name is registered, the map entry of host ip > in DNS system.Resolve according to the management domain domain-name information in GH, the IP address of the main service DMS in this management domain can be obtained and returned.
Because the IP address of DMS is almost constant, this just maintains the static result of original DNS systematic conservation and carries out static characteristic of resolving.Simultaneously, due in same management domain, the quantity of DMS, far less than the quantity of node, adopts DNS system storage < domain name for most at present, the scheme of host identities mark >, the embodiment of the present invention can reduce the scale of DNS system map entry greatly.
In step 101, position residing for node is different, so the type of network insertion request that node sends also can be different.That is, the network insertion request received by mobile anchor point may be the network insertion request that the node of home domain sends, and also may be the network insertion request that the node in visit territory sends.
Below in conjunction with Fig. 5 and Fig. 6, the address assignment flow process in the network insertion process under different situations is described in detail.
See Fig. 5, when the first access belonging territory of node, this flow process can comprise:
Step 201: node sends request to its home domain mobile anchor point and distributes host identities mark.Because node is linked into home domain mobile anchor point for the first time, so need first to send request to its home domain mobile anchor point to distribute host identities mark.
Further, a pond, host identities home address and pond, position of host machine home address is provided with in each home domain.In the embodiment of the present invention, address pool can be arranged on the mobile anchor point in home domain, and also can be arranged on the server of responsible address pool in home domain, the setting that the embodiment of the present invention is concrete in home domain to address pool does not limit.
Step 202: home domain mobile anchor point is peer distribution host identities mark.
In this step, after angelica territory mobile anchor point receives the request of node transmission distribution host identities mark, home domain mobile anchor point is node request host identities mark from pond, host identities home address, and by for node request to host identities mark return to node, because node is in home domain network, can be that the host identities mark of peer distribution carries out overall route by home domain mobile anchor point, can be simultaneously that the host identities mark of peer distribution identifies as the position of host machine of node using home domain mobile anchor point.Now, node host identities mark and position of host machine identify be identical.
Step 203: home domain mobile anchor point first sends inquiry request to overall DNS system.Wherein, in inquiry request, carry the management domain domain name of described node, further, described management domain domain name and local host name composition global host name.
Step 204: the inquiry response that overall DNS system returns.Wherein, after the inquiry request that overall situation DNS system acceptance sends to the home domain mobile anchor point of node, owing to storing < management domain domain name in overall DNS system, mapping between home domain mapping server IP address >, so overall DNS can inquire the IP address of the home domain mapping server of node according to the management domain domain name of described node, the IP address of the home domain mapping server inquiring node is returned to the home domain mobile anchor point of node.
Step 205: the host identities of node mark and position of host machine mark are determined binding relationship by the home domain mobile anchor point of node, are stored into the home domain mapping server of node.
In embodiments of the present invention, the synchronous of data between mapping server and the home domain mapping server of node is backed up in order to keep the home domain of node, when data change in the main mapping server of home domain of node, changing content synchronization message can be sent to the home domain backup mapping server of node.
Further, mobile anchor point is after the peer distribution host identities mark of described network insertion request, to the node return address assignment response of described network insertion request, wherein, the host identities mark of the peer distribution of promising described network insertion request in described address assignment response, can be carried.
Wherein, mobile anchor point is to the node return address assignment response of described network insertion request, with mobile anchor point, the host identities for described peer distribution is identified the home domain mapping server sending to described node, and indicate the home domain mapping server of described node to store host identities mark and the position of host machine mark of described node, can complete simultaneously; Also can be that mobile anchor point is first to the node return address assignment response of described network insertion request, then the host identities mark for described peer distribution is sent to the home domain mapping server of described node, and indicate the home domain mapping server of described node to store host identities mark and the position of host machine mark of described node; It can also be the home domain mapping server that the host identities mark for described peer distribution is first sent to described node by mobile anchor point, and indicate the home domain mapping server of described node to store host identities mark and the position of host machine mark of described node, then to the node return address assignment response of described network insertion request; The embodiment of the present invention does not limit the sequencing that this performs these two steps.
In embodiments of the present invention, pond, host identities home address and pond, position of host machine home address is provided with in home domain, reserved address pool is also provided with at place of operator, address wherein in reserved address pool both can identify as host identities, also can identify as position of host machine, wherein, the ratio of the quantity of preallocated first address style mark and the quantity of the second address style mark in reserved address pool, equal with the quantitative proportion of the second address style mark preallocated in the address pool that position of host machine identifies with the quantity of the first address style mark preallocated in the address pool that host identities identifies.Further, when needs adjustment host identities mark, can the first reserved address style mark in reserved for place of operator address pool be added in the address pool of host identities mark; When needs adjustment position of host machine mark, the second reserved address style mark in reserved for place of operator address pool can be added in the address pool of position of host machine mark.
See Fig. 6, when node accesses visit territory for the first time, this flow process can comprise:
Step 301, node sends access request to visit territory mobile anchor point.
Because node motion is to visit territory mobile anchor point, so the host identities mark that node-home territory mobile anchor point is peer distribution loses the ability of route, when after node motion to visit territory mobile anchor point, need to send access request to visit territory mobile anchor point.
Step 302, visit territory mobile anchor point is peer distribution position of host machine mark.
After visit territory mobile anchor point receives the access request that node sends, visit territory mobile anchor point be node request position of host machine mark from pond, position of host machine home address, and by for node request to position of host machine identify and return to node.Because node has moved to visit territory mobile anchor point, and the host identities mark that node-home territory mobile anchor point is peer distribution loses the ability of route, so the position of host machine mark that visit territory mobile anchor point is peer distribution can carry out route.Now, the host identities mark of node is not identical with position of host machine mark.
In embodiments of the present invention, visit is provided with pond, host identities home address and pond, position of host machine home address in territory, reserved address pool is also provided with at place of operator, address wherein in reserved address pool both can identify as host identities, also can identify as position of host machine, wherein, the ratio of the quantity of preallocated first address style mark and the quantity of the second address style mark in reserved address pool, equal with the quantitative proportion of the second address style mark preallocated in the address pool that position of host machine identifies with the quantity of the first address style mark preallocated in the address pool that host identities identifies.Further, when needs adjustment host identities mark, can the first reserved address style mark in reserved for place of operator address pool be added in the address pool of host identities mark; When needs adjustment position of host machine mark, the second reserved address style mark in reserved for place of operator address pool can be added in the address pool of position of host machine mark.
In embodiments of the present invention, the position of host machine of peer distribution mark is sent to the home domain mapping server of described node by visit territory mobile anchor point, and indicates the home domain mapping server of described node to be current distributed position of host machine mark by the position of host machine identification renewal corresponding to the host identities of described node mark.
Further, before node host station location marker is sent to node-home domain mapping server, need the IP address first obtaining node-home domain mapping server.
Step 303, the visit territory mobile anchor point of node first sends inquiry request to overall DNS system.Wherein, in inquiry request, carry the management domain domain name of node, further, described management domain domain name and local host name composition global host name.
Step 304, the inquiry response that overall DNS system returns.Wherein, after overall situation DNS system acceptance to the inquiry request of the visit territory mobile anchor point transmission of node, owing to storing < management domain domain name in overall DNS system, mapping between DMS IP>, so overall DNS can inquire the IP address of the home domain mapping server of node according to the management domain domain name of described node, the IP address of the home domain mapping server inquiring node is returned to the visit territory mobile anchor point of node.
Step 305, the position of host machine of node mark is sent to the home domain mapping server of described node by the visit territory mobile anchor point of node.The position of host machine mark received is substituted the position of host machine mark of the host identities mark correspondence of described node by the home domain mapping server of described node.
In embodiments of the present invention, the synchronous of data between mapping server and the main mapping server of home domain of node is backed up in order to keep the home domain of node, when data change in the main mapping server of home domain of node, changing content synchronization message can be sent to the home domain backup mapping server of node.
In the embodiment of the present invention, in order to increase reliability or realize load balancing, in a management domain, multiple DMS can be set.After the data in the DMS of in management domain change, data syn-chronization can be given other DMS in this management domain, keep synchronous to make the data of all DMS in a management domain.Based on above-mentioned IP v6 address programming method, the embodiment of the present invention additionally provides a kind of address acquiring method.
See Fig. 7, it is the address acquisition schematic flow sheet that the embodiment of the present invention provides.This flow process can be performed by mobile anchor point.Described mobile anchor point is deployed in the edge router level of access network.This flow process can comprise:
Step 401, obtains the global host name of node;
Step 402, obtains host identities mark and the position of host machine mark of described node according to the global host name of described node; Described host identities mark and described position of host machine mark are IPv6 address, and comprise the first address style mark in IPv6 address as host identities mark, comprise the second address style mark as in the IPv6 address that position of host machine identifies.
Wherein, step 402 realizes by twice resolving, as shown in Figure 8 concrete, and this twice resolving can comprise:
Step 4021, sends the first inquiry request to overall DNS, carries the management domain domain name of described node in described first inquiry request, wherein, and described management domain domain name and local host name composition global host name.
Step 4022, receives the first inquiry response that described overall DNS system returns, and carries the IP address of the DMS that described overall DNS system inquires according to the management domain domain name part of described node in described first inquiry response.
In the embodiment of the present invention by DNS system (but being not only confined to DNS system) for different management domains carries out parsing inquiry service, realize the Mapping Resolution of the internet IP address of DMS.
In order to the existing domain name analysis system of compatibility, only need by map entry < management domain domain name in each management domain, DMS IP> is registered in DNS system, and no longer in units of main frame, < domain name is registered, the map entry of host ip > in DNS system.Resolve according to the management domain domain-name information in GH, the IP address of the main service DMS in this management domain can be obtained and returned.
Because the IP address of DMS is almost constant, this just maintains the static result of original DNS systematic conservation and carries out static characteristic of resolving.Simultaneously, due in same management domain, the quantity of DMS, far less than the quantity of node, adopts DNS system storage < domain name for most at present, the scheme of host identities mark >, the embodiment of the present invention can reduce the scale of DNS system map entry greatly.
Step 4023, according to the IP address of the DMS inquired, the home domain DMS to described node sends the second inquiry request, carries the global host name of described node in described second inquiry request.
After mobile anchor point receives the IP address of the DMS that overall DNS system returns, in order to obtain host identities mark and the position of host machine mark of node further, this mobile anchor point is according to the home domain DMS initiation second time inquiry request of this DMS IP address to node.DMS is according to the local host name in the Node World host name of carrying in query messages, the local host name of node is inquired about as keyword, because DMS safeguards the host identities mark of this node and the mapping relations of position of host machine mark, therefore DMS can get host identities mark and the position of host machine mark of this node.
In embodiments of the present invention, the map entry < local host name that host identities mark identifies with position of host machine is stored in DMS, host identities identifies, position of host machine mark >, be mainly used in carrying out host identities and identify the registration storage and Mapping Resolution that identify with position of host machine, the Binding Update etc. of processing host station location marker and host identities mark.
Step 4024, the second inquiry response that the home domain DMS receiving described node returns, the home domain DMS carrying described node in described second inquiry response identifies and position of host machine mark according to the host identities that the local host name partial query in the global host name of described node arrives.
After the host identities mark that mobile anchor point receives this node that DMS returns and position of host machine mark, the mapping relations that the host identities of this node of buffer memory mark and position of host machine identify.
Due to features such as the mobility of node or many ownership, its position of host machine identifies and may often change.In order to maintain the continuity of network layer communication between node, the home domain DMS of node needs to maintain the map entry < host identities mark in its administration territory, position of host machine mark >, so home domain DMS realization is dynamic analysis.The resolving of home domain DMS by means of the thought of overall DNS, utilizes the IP address that domain name Mapping Resolution changes, and is applicable to dynamically updating fast.And map entry is relevant to geographical position to the mapping storage of overall DMS, the local identify label of < of certain node is decided relative to mapping algorithm, local position mark > is stored into the scheme of which domain mapping server, the embodiment of the present invention is convenient to directly inquire about, and can reduce inquiry time delay.
Address above mentioned acquisition process usually occurs in communication connection process of establishing.Below in conjunction with Fig. 9 to Figure 11, communication connection process of establishing is described in detail.
See Fig. 9, when node 1 is to node 2 initiating communication connection establishment process, this flow process can comprise:
Step 501: node 1 sends communication connection foundation request to the home domain mobile anchor point of this node.Wherein, carry the global host name of node 2 in this request, node 2 is peer nodes that node 1 asks communication.
Step 502: the home domain mobile anchor point of node 1 sends inquiry request to overall DNS system, wherein, carries the management domain domain name of node 2 in described inquiry request.Further, described management domain domain name and local host name composition global host name.
Step 503: the inquiry response that overall DNS system returns, wherein, overall situation DNS system obtains the IP address of the DMS of the home domain of node 2 according to the management domain inquiry of the domain name of node 2, and this DMS IP address is carried on query response message returns to home domain mobile anchor point.The specific implementation process of this step can see previous embodiment.
Step 504: the DMS IP address of carrying in the inquiry response that the home domain mobile anchor point of node 1 returns according to overall DNS system, the home domain mobile anchor point to node 2 initiates inquiry request, carries the global host name of node 2 in inquiry request.
Step 505: the inquiry response that the home domain mapping server of node 2 returns.Wherein, the home domain mobile anchor point of node 2 identifies and position of host machine mark according to the host identities of the local host partial query in the global host name of node 2 to node 2, and the host identities of the node 2 inquired mark and position of host machine mark are carried the home domain mobile anchor point returning to node 1 with inquiry response.The specific implementation process of this step can see previous embodiment.
Step 506: the host identities of node 2 mark identifies with position of host machine and carries out buffer memory by the home domain mobile anchor point of node 1, and the host identities of node 2 mark is returned to node 1.
Step 507: the home domain mobile anchor point of node 1 is to the home domain mobile anchor point initiating communication connection establishment request of node 2, and the host identities mark wherein carrying node 1 identifies with position of host machine.
Step 508: after the host identities mark of the node 1 that the home domain mobile anchor point that the home domain mobile anchor point of node 2 receives node 1 sends identifies with position of host machine, the host identities of node 1 mark is identified with position of host machine and carries out buffer memory, and the host identities of node 1 mark is sent to node 2.
Step 509: the host identities of node 1 mark is carried out buffer memory by node 2, establishes a communications link between node 2 and node 1.
After establishing a communications link between node 1 and node 2, can communicate between node 1 and node 2.Figure 10 shows two internodal communication processs.
As shown in Figure 10, this flow process can comprise:
Step 601: the first communication information of home domain mobile anchor point receiving node 1 transmission of node 1.The host identities mark of node 1 and the host identities mark of node 2 is carried in the first communication information that node 1 sends.
Step 602: the home domain mobile anchor point of node 1 identifies according to the host identities of the node 1 of local cache and node 2 mapping relations identified with position of host machine, if desired by the position of host machine mark of the host identities of the first communication information interior joint 1 mark switching node 1, by the position of host machine mark of the host identities of the first communication information interior joint 2 mark switching node 2, then the first message after carrying out address transition is sent to the home domain mobile anchor point of node 2.
Step 603: the home domain mobile anchor point of node 2 identifies according to the host identities of the node 1 of local cache and node 2 mapping relations identified with position of host machine, if desired by the host identities mark of the position of host machine of the first communication information interior joint 1 mark switching node 1, by the host identities mark of the position of host machine of the first communication information interior joint 2 mark switching node 2, then the first message after carrying out address transition is sent to node 2.
Switches if be moved in node 1 and node 2 communication process, the position of host machine of node 1 identifies and then can change.For maintaining node 1 and the continuity of the original communication of node 2, need to carry out corresponding map updating operation and switching controls process, make node 2 or other be about to can find node 1 latest position to the node of node 1 initiating communication.Concrete scene and signalling interactive process be as shown in figure 11:
Step 701: in the process of communication between node 1 and node 2, node 1 moves to visit territory mobile anchor point from home domain mobile anchor point, the host identities mark of node 1 loses route effect, node 1 needs to send access request to visit territory mobile anchor point, accesses the method for visit territory mobile anchor point with reference to figure 6 and embodiment node 1.
When the visit territory mobile anchor point of node 1 is after node 1 distributes position of host machine mark, and after the position of host machine of node 1 mark is stored into the home domain mapping server of node 1, further comprising the steps of:
In a step 702, the visit territory mobile anchor point of node 1 receives the communication information that node 1 sends to node 2, wherein, the host identities mark of node 1 and node 2 is carried in communication information, the visit territory mobile anchor point of node 1, according to the mapping relations that the node 1 of local cache and the host identities mark of node 2 identify with position of host machine, by the position of host machine mark of the host identities of node 1 mark switching node 1, if desired the host identities of node 2 mark is converted to the position of host machine mark of node 2, then the communication information after carrying out address transition is sent to the home domain mobile anchor point of node 2.
Communication information after the conversion that the visit territory mobile anchor point receiving node 1 when the home domain mobile anchor point of node 2 sends, the host identities of node 1 mark and new position of host machine are identified again, then the home domain mobile anchor point of node 2 identifies according to the host identities of the node 1 of local cache and node 2 mapping relations identified with position of host machine, by the host identities mark of the position of host machine of communication information interior joint 1 mark switching node 1, if desired by the host identities mark of the position of host machine of communication information interior joint 2 mark switching node 2, then the communication information after carrying out address transition is sent to node 2.
In step 703, it is mutual to carry out communication signaling between the visit territory mobile anchor point of node 1 and the home domain mobile anchor point of node 1.Ensure that the node 2 of the home domain mobile anchor point forwarding of the node 2 that the home domain mobile anchor point that the visit territory mobile anchor point of node 1 can receive node 1 forwards sends to the communication information of node 1.
Set up after communicating between the visit territory mobile anchor point and the home domain mobile anchor point of node 2 of node 1, then carry out communication signaling cancellation by between the visit territory mobile anchor point of node 1 and the home domain mobile anchor point of node 1, and discharge the home domain mobile anchor point of node 1.
In the embodiment of the present invention, step 702 and step 703 do not have sequencing, first can perform step 702, then perform step 703; Also first can perform step 703, then perform step 702; The sequencing of the present invention to step does not limit.
In the embodiment of the present invention, described host identities mark and described position of host machine mark are IPv6 address, and as host identities mark IPv6 address in comprise the first address style mark, comprise the second address style mark in IPv6 address as position of host machine mark, described first address style mark and the second address style mark have different valued space; The determination of described first address style mark and the second address style mark valued space and the ratio of the first address style mark and the second address style mark all can set and dynamic conditioning according to operator's main body self load condition flexibly, and first the ratio of address style mark and the second address style mark also can adjust flexibly according to the ratio of mobile node and stationary nodes, thus IPv6 address is divided grammatically the while of supporting ambulant from self, also solve the problem of the dual semanteme in IP address.Send to the home domain mapping server of described node by for the host identities mark of described peer distribution or position of host machine mark, safeguard corresponding relation between the host identities mark of described node with position of host machine mark to make the home domain mapping server of described node.Reduce inquiry times, improve search efficiency.
For said method flow process, the embodiment of the present invention also provides a kind of address distributing device and a kind of communicator, and the particular content of these equipment can be implemented with reference to said method, does not repeat them here.
As shown in figure 12, the embodiment of the present invention provides a kind of address distributing device, comprising: receiving element 21 allocation units 22, maintenance unit 23 and adjustment unit 24.
Receiving element 21, for receiving network insertion request;
Allocation units 22, for according to described network insertion request being peer distribution host identities mark or the position of host machine mark of request access; Wherein, described host identities mark and described position of host machine mark are IPv6 address, and comprise the first address style mark in IPv6 address as host identities mark, comprise the second address style mark as in the IPv6 address that position of host machine identifies;
Maintenance unit 23, for sending to the home domain mapping server of described node by for the host identities mark of described peer distribution or position of host machine mark, safeguard corresponding relation between the host identities mark of described node with position of host machine mark to make the home domain mapping server of described node.
Further, the host identities mark that described receiving element 21 sends specifically for: receiving node distributes request, and described node-home is in described mobile anchor point;
Described allocation units 22 specifically for: distribute request for described peer distribution host identities mark according to described identify label, and the host identities of described node mark used as the position of host machine mark of described node simultaneously; The host identities of described node mark is carried on response message and sends to described node;
Described maintenance unit 23 specifically for: the host identities mark for described peer distribution is sent to the home domain mapping server of described node, and indicate the home domain mapping server of described node to store host identities mark and the position of host machine mark of described node, wherein, the position of host machine mark of described node identifies identical with the host identities of described node.
Further, the access request that described receiving element 21 sends specifically for: receiving node, described node does not belong to described mobile anchor point;
Described allocation units 22 specifically for: according to described access request be described peer distribution position of host machine mark;
Described maintenance unit 23 specifically for: the position of host machine mark for described peer distribution is sent to the home domain mapping server of described node, and indicate the home domain mapping server of described node the host identities of described node is identified corresponding to position of host machine identification renewal be current distributed position of host machine mark.
Further, described maintenance unit 23 also for: resolve DNS system to global domain name and send inquiry request, in described inquiry request, carry the global host name of described node;
Receive the inquiry response that described overall DNS system returns, in described inquiry response, carry the Internet protocol IP address of the home domain mapping server of the described node that described overall DNS system inquires according to the management domain domain name part in the global host name of described node.
Further, described allocation units 22 specifically for: according to described network insertion request, from host identities mark address pool be described node selection host identities identify; Or, according to described network insertion request, be described node selection position of host machine mark from the address pool of position of host machine mark;
Wherein, the quantity of preallocated second address style mark in the address pool that in the address pool of host identities mark, quantity and the position of host machine of preallocated first address style mark identify, according to setting ratio setting.
Further, also be provided with reserved address pool, described reserved address pool comprises host identities mark and position of host machine mark, wherein, the quantity of preallocated first address style mark and the quantity of the second address style mark in reserved address pool, according to described setting ratio setting;
Also comprise adjustment unit 24, described adjustment unit 24 for: the first address style mark reserved in reserved address pool is added in the address pool of host identities mark, and/or, the second address style mark reserved in reserved address pool is added in the address pool of position of host machine mark.
Further, comprise address style territory in the prefix addresses block of IPv6 address, described address style territory is for carrying described first address style mark or described second address style mark.
As shown in figure 13, the embodiment of the present invention provides a kind of address acquisition unit, and this device comprises: the first acquiring unit 31, second acquisition unit 32 and transmitting element 33.
First acquiring unit 31, for obtaining the global host name of node;
Second acquisition unit 32, for obtaining host identities mark and the position of host machine mark of described node according to the global host name of described node; Described host identities mark and described position of host machine mark are IPv6 address, and as host identities mark IPv6 address in comprise the first address style mark, comprise the second address style mark in IPv6 address as position of host machine mark, described first address style mark and the second address style mark have different valued space.
Further, described second acquisition unit 32 have for:
Resolve DNS system to global domain name and send the first inquiry request, in described first inquiry request, carry the global host name of described node;
Receive the first inquiry response that described overall DNS system returns, in described first inquiry response, carry the Internet protocol IP address of the domain mapping server that described overall DNS system inquires according to the management domain domain name part in the global host name of described node;
According to the domain mapping server inquired IP address, to described node home domain mapping server send inquiry request, carry the global host name of described node in described inquiry request;
The second inquiry response that the home domain mapping server receiving described node returns, the home domain mapping server carrying described node in described second inquiry response identifies and position of host machine mark according to the host identities that the local host name partial query in the global host name of described node arrives.
Further, described first acquiring unit 31 specifically for: receive calling node send connection setup request, obtain the global host name of the called node carried in described connection setup request;
Also comprise:
Transmitting element 33, for after described second acquisition unit is according to the host identities mark of the described called node of global host name acquisition of described called node and position of host machine mark, the host identities of described calling node mark is sent to described called node, the host identities of described called node mark is sent to described calling node, to make to establish a communications link between described called node and described calling node.
For a kind of address distributing device of the present embodiment, the receiving communication unit comprised, transmission communication unit and connection setup unit.Wherein, said units can be arranged in same entity apparatus, and can be multiple independent entity devices arranged, the embodiment of the present invention do concrete restriction yet.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the application and not depart from the spirit and scope of the application.Like this, if these amendments of the application and modification belong within the scope of the application's claim and equivalent technologies thereof, then the application is also intended to comprise these change and modification.

Claims (20)

1. an address distribution method, is characterized in that, comprising:
Receive network insertion request;
According to peer distribution host identities mark or position of host machine mark that described network insertion request is request access; Wherein, described host identities mark and described position of host machine mark are IPv6 address, and comprise the first address style mark in IPv6 address as host identities mark, comprise the second address style mark as in the IPv6 address that position of host machine identifies;
Send to the home domain mapping server of described node by for the host identities mark of described peer distribution or position of host machine mark, safeguard corresponding relation between the host identities mark of described node with position of host machine mark to make the home domain mapping server of described node.
2. the method for claim 1, is characterized in that, described reception network insertion request, comprising:
The host identities mark that mobile anchor point receiving node sends distributes request, and described node-home is in described mobile anchor point;
Described is described peer distribution host identities mark according to described network insertion request, comprising:
Described mobile anchor point distributes request for described peer distribution host identities mark according to described identify label, the host identities of described node mark is carried on response message and sends to described node, and the host identities of described node mark is used as the position of host machine mark of described node simultaneously;
The described home domain mapping server host identities mark for described peer distribution being sent to described node, comprising:
Host identities mark for described peer distribution is sent to the home domain mapping server of described node by described mobile anchor point, and indicate the home domain mapping server of described node to store host identities mark and the position of host machine mark of described node, wherein, the position of host machine mark of described node identifies identical with the host identities of described node.
3. the method for claim 1, is characterized in that, described reception network insertion request, comprising:
The access request that mobile anchor point receiving node sends, described node does not belong to described mobile anchor point;
Described is described peer distribution position of host machine mark according to described network insertion request, comprising:
Described mobile anchor point is described peer distribution position of host machine mark according to described access request;
The described home domain mapping server position of host machine mark for described peer distribution being sent to described node, comprising:
Position of host machine mark for described peer distribution is sent to the home domain mapping server of described node by described mobile anchor point, and indicates the home domain mapping server of described node to be current distributed position of host machine mark by the position of host machine identification renewal corresponding to the host identities of described node mark.
4. as claimed any one in claims 1 to 3 method, is characterized in that, described by before identifying for the host identities mark of described peer distribution or position of host machine and sending to the home domain mapping server of described node, also comprises:
Resolve DNS system to global domain name and send inquiry request, in described inquiry request, carry the global host name of described node;
Receive the inquiry response that described overall DNS system returns, in described inquiry response, carry the Internet protocol IP address of the home domain mapping server of the described node that described overall DNS system inquires according to the management domain domain name part in the global host name of described node.
5. method as claimed any one in claims 1 to 3, is characterized in that, described is described peer distribution host identities mark according to described network insertion request, comprising:
According to described network insertion request, be described node selection host identities mark from the address pool of host identities mark;
Described is described peer distribution position of host machine mark according to described network insertion request, comprising:
According to described network insertion request, be described node selection position of host machine mark from the address pool of position of host machine mark;
Wherein, preallocated second address style mark quantity in the address pool that in the address pool of host identities mark, preallocated first address style mark quantity and position of host machine identify, according to setting ratio setting.
6. method as claimed in claim 5, it is characterized in that, also be provided with reserved address pool, described reserved address pool comprises host identities mark and position of host machine mark, wherein, the quantity of preallocated first address style mark and the quantity of the second address style mark in reserved address pool, according to described setting ratio setting;
The method also comprises:
The first address style mark reserved in reserved address pool is added in the address pool of host identities mark, and/or, the second address style mark reserved in reserved address pool is added in the address pool of position of host machine mark.
7. the method for claim 1, is characterized in that, comprises address style territory in the prefix addresses block of IPv6 address, and described address style territory is for carrying described first address style mark or described second address style mark.
8. an address acquiring method, is characterized in that, the method comprises:
Obtain the global host name of node;
Host identities mark and the position of host machine mark of described node is obtained according to the global host name of described node; Described host identities mark and described position of host machine mark are IPv6 address, and as host identities mark IPv6 address in comprise the first address style mark, comprise the second address style mark in IPv6 address as position of host machine mark, described first address style mark and the second address style mark have different valued space.
9. method as claimed in claim 8, is characterized in that, the described global host name according to described node obtains host identities mark and the position of host machine mark of described node, comprising:
Resolve DNS system to global domain name and send the first inquiry request, in described first inquiry request, carry the global host name of described node;
Receive the first inquiry response that described overall DNS system returns, in described first inquiry response, carry the Internet protocol IP address of the domain mapping server that described overall DNS system inquires according to the management domain domain name part in the global host name of described node;
According to the domain mapping server inquired IP address, the home domain mapping server to described node sends the second inquiry request, carries the global host name of described node in described second inquiry request;
The second inquiry response that the home domain mapping server receiving described node returns, the home domain mapping server carrying described node in described second inquiry response identifies and position of host machine mark according to the host identities that the local host name partial query in the global host name of described node arrives.
10. method as claimed in claim 8 or 9, it is characterized in that, the global host name of described acquisition node, comprising:
Receive the connection setup request that calling node sends, obtain the global host name of the called node carried in described connection setup request;
Obtain after the host identities mark of described called node and position of host machine identify according to the global host name of described called node, described method also comprises:
The host identities of described calling node mark is sent to described called node, the host identities of described called node mark is sent to described calling node, to make to establish a communications link between described called node and described calling node.
11. 1 kinds of address distributing devices, is characterized in that, comprising:
Receiving element, for receiving network insertion request;
Allocation units, for according to described network insertion request being peer distribution host identities mark or the position of host machine mark of request access; Wherein, described host identities mark and described position of host machine mark are IPv6 address, and comprise the first address style mark in IPv6 address as host identities mark, comprise the second address style mark as in the IPv6 address that position of host machine identifies;
Maintenance unit, for sending to the home domain mapping server of described node by for the host identities mark of described peer distribution or position of host machine mark, safeguard corresponding relation between the host identities mark of described node with position of host machine mark to make the home domain mapping server of described node.
12. devices as claimed in claim 11, is characterized in that, the host identities mark that described receiving element sends specifically for: receiving node distributes request, and described node-home is in described mobile anchor point;
Described allocation units specifically for: distribute request for described peer distribution host identities mark according to described identify label, and the host identities of described node mark used as the position of host machine mark of described node simultaneously; The host identities of described node mark is carried on response message and sends to described node;
Described maintenance unit specifically for: the host identities mark for described peer distribution is sent to the home domain mapping server of described node, and indicate the home domain mapping server of described node to store host identities mark and the position of host machine mark of described node, wherein, the position of host machine mark of described node identifies identical with the host identities of described node.
13. devices as claimed in claim 11, is characterized in that, the access request that described receiving element sends specifically for: receiving node, and described node does not belong to described mobile anchor point;
Described allocation units specifically for: according to described access request be described peer distribution position of host machine mark;
Described maintenance unit specifically for: the position of host machine mark for described peer distribution is sent to the home domain mapping server of described node, and indicate the home domain mapping server of described node the host identities of described node is identified corresponding to position of host machine identification renewal be current distributed position of host machine mark.
14. devices according to any one of claim 11 to 13, is characterized in that, described maintenance unit also for: resolve DNS system to global domain name and send inquiry request, in described inquiry request, carry the global host name of described node;
Receive the inquiry response that described overall DNS system returns, in described inquiry response, carry the Internet protocol IP address of the home domain mapping server of the described node that described overall DNS system inquires according to the management domain domain name part in the global host name of described node.
15. devices according to any one of claim 11 to 13, is characterized in that, described allocation units specifically for: according to described network insertion request, be that described node selection host identities identifies from the address pool of host identities mark; Or, according to described network insertion request, be described node selection position of host machine mark from the address pool of position of host machine mark;
Wherein, the quantity of preallocated second address style mark in the address pool that in the address pool of host identities mark, quantity and the position of host machine of preallocated first address style mark identify, according to setting ratio setting.
16. devices as claimed in claim 15, it is characterized in that, also be provided with reserved address pool, described reserved address pool comprises host identities mark and position of host machine mark, wherein, the quantity of preallocated first address style mark and the quantity of the second address style mark in reserved address pool, according to described setting ratio setting;
Also comprise adjustment unit, described adjustment unit is used for: added to by the first address style mark reserved in reserved address pool in the address pool of host identities mark, and/or, the second address style mark reserved in reserved address pool is added in the address pool of position of host machine mark.
17. devices as claimed in claim 11, is characterized in that, comprise address style territory in the prefix addresses block of IPv6 address, and described address style territory is for carrying described first address style mark or described second address style mark.
18. 1 kinds of address acquisition unit, is characterized in that, this device comprises:
First acquiring unit, for obtaining the global host name of node;
Second acquisition unit, for obtaining host identities mark and the position of host machine mark of described node according to the global host name of described node; Described host identities mark and described position of host machine mark are IPv6 address, and as host identities mark IPv6 address in comprise the first address style mark, comprise the second address style mark in IPv6 address as position of host machine mark, described first address style mark and the second address style mark have different valued space.
19. devices as claimed in claim 18, is characterized in that, described second acquisition unit have for:
Resolve DNS system to global domain name and send the first inquiry request, in described first inquiry request, carry the global host name of described node;
Receive the first inquiry response that described overall DNS system returns, in described first inquiry response, carry the Internet protocol IP address of the domain mapping server that described overall DNS system inquires according to the management domain domain name part in the global host name of described node;
According to the IP address of the domain mapping server inquired, the home domain mapping server to described node sends the second inquiry request, carries the global host name of described node in described inquiry request;
The second inquiry response that the home domain mapping server receiving described node returns, the home domain mapping server carrying described node in described second inquiry response identifies and position of host machine mark according to the host identities that the local host name partial query in the global host name of described node arrives.
20. devices as described in claim 18 or 19, is characterized in that, described first acquiring unit specifically for: receive the connection setup request that calling node sends, obtain the global host name of the called node carried in described connection setup request;
Also comprise:
Transmitting element, for after described second acquisition unit is according to the host identities mark of the described called node of global host name acquisition of described called node and position of host machine mark, the host identities of described calling node mark is sent to described called node, the host identities of described called node mark is sent to described calling node, to make to establish a communications link between described called node and described calling node.
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