CN102231764A - Method and device for distributing network addresses - Google Patents
Method and device for distributing network addresses Download PDFInfo
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- CN102231764A CN102231764A CN201110169179XA CN201110169179A CN102231764A CN 102231764 A CN102231764 A CN 102231764A CN 201110169179X A CN201110169179X A CN 201110169179XA CN 201110169179 A CN201110169179 A CN 201110169179A CN 102231764 A CN102231764 A CN 102231764A
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Abstract
The invention discloses a method and device for distributing network addresses and belongs to the field of internet. The method disclosed by the invention comprises the following steps: receiving the address distribution request of user equipment; obtaining the spare network address from an address pool according to the address distribution request and the address pool mapping relation which is locally stored, wherein the address pool mapping relation comprises the address pool and at least one subaddress pool contained in the address pool; and distributing the spare network address to the user equipment. The device disclosed by the invention comprises a receiving module, an acquisition module and a distribution module. In the invention, the network addresses is distributed for the user equipment according to the address pool mapping relation which is locally stored by virtue of changing the existing address distribution procedure when the address distribution request is received, thereby achieving the purpose of distributing the address for the user equipment with pertinency, improving the distribution efficiency and meeting the requirements in the actual application of a client better.
Description
Technical field
The present invention relates to internet arena, the method and apparatus that particularly a kind of network address is distributed.
Background technology
BRAS (Broadband Remote Access Server, Broadband Remote Access Server) be that Virtual network operator is used for equipment that the data broadband user is managed and charges, the critical function of BRAS is exactly that the various address pool types that rely on the configuration of this machine are given user's distributing IP address, it is that address pool name and address field are bound that current address pool realizes, can dispose one or a plurality of IP section below the address pool.BRAS finds corresponding IP address field and therefrom gets an available IP address assignment to subscriber equipment according to the address pool name when giving user equipment allocation IP address.
In realizing process of the present invention, the inventor finds that there is following problem at least in prior art:
In the prior art, the IP network hop count amount below address pool is limited, and autgmentability is poor, and existing network address assignment method specific aim is poor, can not adapt to operator to the diversified demand of network application.
Summary of the invention
In order to improve autgmentability, adapt to operator to the diversified demand of network application, the method and apparatus that the embodiment of the invention provides a kind of network address to distribute.Described technical scheme is as follows:
The method that a kind of network address is distributed, described method comprises:
Receive the address assignment request of subscriber equipment;
According to described address assignment request and local address pool mapping relations of preserving, from address pool, obtain the idle network address; Described address pool mapping relations comprise at least one pond, subaddressing that address pool and described address pool comprise;
Described subscriber equipment is distributed in the network address of described free time.
A kind of network address assigned unit, described device comprises:
Receiver module is used to receive the address assignment request of subscriber equipment;
Acquisition module is used for obtaining the idle network address according to described address assignment request and local address pool mapping relations of preserving from address pool; Described address pool mapping relations comprise the mapping relations between at least one pond, subaddressing that address pool and described address pool comprise;
Distribution module is used for described subscriber equipment is distributed in the network address of described free time.
The beneficial effect that the technical scheme that the embodiment of the invention provides is brought is:
The present invention has changed existing address assignment flow process, by when receiving address assignment request, the address pool mapping relations of preserving according to this locality are that subscriber equipment carries out network address distribution, reached and be the address of distribution targetedly of subscriber equipment, improve autgmentability, better met the demand in client's practical application.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the configuration diagram of the communication system of embodiment of the invention application scenarios;
Fig. 2 is the flow chart of the method for a kind of network address distribution provided by the invention;
Fig. 3 is the flow chart of the method for a kind of network address distribution provided by the invention;
Fig. 4 is the flow chart of the method for a kind of network address distribution provided by the invention;
Fig. 5 is the structural representation of a kind of network address assigned unit of providing of the embodiment of the invention;
Fig. 6 is the structural representation of a kind of network address assigned unit of providing of the embodiment of the invention;
Fig. 7 is the structural representation of a kind of network address assigned unit of providing of the embodiment of the invention;
Fig. 8 is the structural representation of a kind of network address assigned unit of providing of the embodiment of the invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, embodiment of the present invention is described further in detail below in conjunction with accompanying drawing.
Fig. 1 is the configuration diagram of the communication system of embodiment of the invention application scenarios.Referring to Fig. 1, comprise at least one subscriber equipment, IP address assignment entity and Access Network in this communication system, subscriber equipment is connected to Access Network, and Access Network comprises or is connected to the IP address assignment entity.Access Network can directly or by other networks be connected to the Internet.Can also comprise unshowned various other entities among Fig. 1, as fire compartment wall and diverse network access unit.
Fig. 2 is the flow chart of the method for a kind of network address distribution provided by the invention.The executive agent of this embodiment is the IP address assignment entity, and preferably, this IP address assignment entity is BRAS, and referring to Fig. 2, this embodiment specifically comprises:
201, receive the address assignment request of subscriber equipment;
In embodiments of the present invention, subscriber equipment is to the IP address assignment entity requests network address, this subscriber equipment can connect by point-to-point link or tunnel and is connected to this IP address assignment entity, need to prove that this subscriber equipment can also provide access for one or more other equipment thereafter.
Further, this address assignment request is carried in packet data protocol message, internet protocol control protocol configuring request, mobile IP registration or the binding update messages.Those skilled in the art can know that subscriber equipment can send address assignment request to the IP address assignment entity under multiple situation, and as the situation that subscriber equipment networks, the embodiment of the invention is not done and given unnecessary details.
202, according to this address assignment request and local address pool mapping relations of preserving, from address pool, obtain the idle network address; These address pool mapping relations comprise at least one pond, subaddressing that address pool and this address pool comprise;
Those skilled in the art can be known, in the local address pool mapping relations of preserving, it generally is pond, the corresponding a plurality of subaddressing of an address pool, when receiving address assignment request, it is this address pool that the address of acquiescence obtains scope, in the present embodiment, and again by this address pool and these address pool mapping relations, obtain the pond, subaddressing, from the pond, subaddressing, obtain the idle network address again.Wherein, the pond, subaddressing can be common address pool, also can be introduced respectively in follow-up embodiment for certain address field in the address pool.
Preferably, the concrete manifestation form of address pool mapping relations can be mapping table, and this mapping table can be man-to-man mapping, can also be the mapping of one-to-many, and the embodiment of the invention is not done concrete qualification.
203, this subscriber equipment is distributed in the network address that should the free time.
Those skilled in the art can know that the network address that comprises in the address pool comprises the network address and the idle network address of having distributed, is carrying out the branch timing, and only picked at random from the network address of free time is distributed.
The method that the embodiment of the invention provides, changed existing address assignment flow process, by when receiving address assignment request, the address pool mapping relations of preserving according to this locality are that subscriber equipment carries out network address distribution, reached and be the address of distribution targetedly of subscriber equipment, improve autgmentability, better met the demand in client's practical application.
Fig. 3 is the flow chart of the method for a kind of network address distribution provided by the invention.The mutual both sides of this embodiment are IP address assignment entity and subscriber equipment, and referring to Fig. 3, this embodiment specifically comprises:
301, subscriber equipment sends address assignment request;
302, the IP address assignment entity receives this address assignment request;
In the present embodiment, described local address pool mapping relations of preserving comprise: address pool and at least one pond, subaddressing, specifically be expressed as mapping table, can comprise in the mapping table address pool title and subaddressing Pool name with and mapping relations, these mapping relations are specifically as follows the mapping table shown in the following table 1.
Table 1
| Address pool | The pond, subaddressing |
| Home | Home1，Home2----- |
| Backup | Backup1，Backup2----- |
In table 1, the local address pool Home that preserves corresponding subaddressing pond Home1, Home2, and those skilled in the art can be known, all corresponding IP address field in each pond, subaddressing.
Further, the IP address assignment entity also may be preserved a plurality of address pool, can select an address pool at random, obtains the subaddressing pond corresponding with selected address pool again from the address pool mapping relations.
303, the IP address assignment entity obtains address pool from this locality;
Those skilled in the art can be known, when receiving address assignment request, if this locality has only an address pool, then obtain this address pool, when there is a plurality of address pool this locality, obtain an address pool at random from these a plurality of address pool.
304, the local address pool mapping relations of preserving of IP address assignment entity inquiry, at least one pond, subaddressing that obtains the address pool correspondence;
In embodiments of the present invention, this pond, subaddressing is common address pool, and common address pool is meant the address pool that comprises the IP address field, and its IP address field was just fixing after configuration was finished.When the extended address pond, only need to be provided with the mapping relations of address pool in this locality, particularly, the mapping relations that address pool is set comprise: address pool and at least one pond, subaddressing are associated, and preserve this association, in the present embodiment, do not need the configuration of IP address section, by other common address pool are added in the mapping relations, increased local distributable IP address field.In addition, can also comprise in the address pool: whether sign IP address field is the identifier of spare field, the priority flag of sign pond, subaddressing priority etc., and the embodiment of the invention is not done concrete qualification.
As shown in table 1, by address pool Home and this address pool mapping relations, obtained pond, subaddressing Home1, the Home1 of Home correspondence ...
305, from least one pond, subaddressing that obtains, obtain any one pond, subaddressing;
In the present embodiment, each address pool can pond, corresponding a plurality of subaddressing, and this pond, a plurality of subaddressing can be an equality, also can be that the priority setting is arranged.
306, from this any one pond, subaddressing, obtain the idle network address.
Those skilled in the art can know that address pool promptly is the IP address field, comprise a plurality of network addresss.
In the present embodiment, each pond, subaddressing can be an equality, chooser address pool at random, those skilled in the art can be known, each pond, subaddressing also can be according to prioritization, when there is priority in the group address pool, from the high pond, subaddressing of priority, obtain the idle network address.
307, subscriber equipment is distributed in the network address of free time of gained.
In embodiments of the present invention, subscriber equipment is distributed in the network address of free time, preserve the network address of this subscriber equipment and distribution thereof in this locality, so that in the follow-up network address is distributed, this network address is designated distributes, can not cause the situation of duplicate allocation address.
In the method for the foregoing description, can also comprise extended method to address pool, be specially: receiver address pond extended instruction; This address pool extended instruction comprises: the IP address field; This IP address field is as the pond, subaddressing, and related with address pool with this pond, subaddressing, incidence relation is added into the address pool mapping relations that preserve this this locality.This process is the process of the local address pool mapping relations of preserving of design, is associated as tree-like or the relation of other serials by the address pool IP address field and the existing address pool that will get access to from the address pool extended instruction, has expanded address pool greatly.
The method that the embodiment of the invention provides, changed existing address assignment flow process, by when receiving address assignment request, the address pool mapping relations of preserving according to this locality are that subscriber equipment carries out network address distribution, reached and be the address of distribution targetedly of subscriber equipment, improve autgmentability, better met the demand in client's practical application.Further, local address pool mapping relations of preserving are the mapping relations in address pool and at least one pond, subaddressing, and the address pool by use has been expanded makes the assignable network address of IP address assignment entity increase greatly.
Fig. 4 is the flow chart of the method for a kind of network address distribution provided by the invention.The mutual both sides of this embodiment are IP address assignment entity and subscriber equipment, and referring to Fig. 4, this embodiment specifically comprises:
401, subscriber equipment sends address assignment request;
In the present embodiment, this address assignment request is carried the port numbers of subscriber equipment, and this port numbers can be used for the attribute of geographical position, local area network (LAN) or this subscriber equipment at identifying user equipment place.
402, the IP address assignment entity receives this address assignment request;
In the present embodiment, described local address pool mapping relations of preserving also comprise: the pond, subaddressing of port numbers and described port numbers correspondence, and this pond, subaddressing can be the IP address field in the address pool, these mapping relations are specifically as follows the mapping table shown in the following table 2.
Table 2
| Port numbers | The IP address field |
| 1001 | 10.0.0.2-10.0.0.255 |
| 1002 | 100.0.0.2-100.0.0.255 |
In table 2, local address pool of preserving comprises IP address field 10.0.0.2-10.0.0.255 and IP address field 100.0.0.2-100.0.0.255, when the IP address assignment entity is provided with, with port numbers is that 1001 the selectable IP address field of subscriber equipment sets in advance and is 10.0.0.2-10.0.0.255, is that 1002 the selectable IP address field of subscriber equipment sets in advance and is 100.0.0.2-100.0.0.255 with port numbers.
403, according to the described local address pool mapping relations of preserving of the port numbers inquiry of subscriber equipment entrained in the address assignment request, obtain pond, subaddressing corresponding in the address pool with port numbers;
In the present embodiment, this pond, subaddressing is a part of IP address field in the common address pool, can also be common address pool, under different ports, can be configured to comprise different common address pool, then can be reached for the different common address pool of user device configuration of different ports.
As shown in table 2, when port numbers was 1001, can distribute to the user device IP address section was 10.0.0.2-10.0.0.255.
404, from the subaddressing pond corresponding, obtain the idle network address with port numbers;
In the present embodiment, in this pond, subaddressing, do not had the idle network address can divide timing, be considered as the address assignment request failure.
405, described subscriber equipment is distributed in the network address of free time of gained.
The method that the embodiment of the invention provides, changed existing address assignment flow process, by when receiving address assignment request, the address pool mapping relations of preserving according to this locality are that subscriber equipment carries out network address distribution, reached and be the address of distribution targetedly of subscriber equipment, improve autgmentability, better met the demand in client's practical application.Further, local address pool mapping relations of preserving are the port numbers that sets in advance and the mapping relations of address pool, distinguish by access interface subscriber equipment, reached and be the purpose of the user equipment allocation network address targetedly, more can adapt to operator the diversified demand of network application.
Fig. 5 is the structural representation of a kind of network address assigned unit of providing of the embodiment of the invention.Referring to Fig. 5, described device comprises:
Receiver module 501 is used to receive the address assignment request of subscriber equipment;
Acquisition module 502 is used for obtaining the idle network address according to described address assignment request and local address pool mapping relations of preserving from address pool; Described address pool mapping relations comprise the mapping relations between at least one pond, subaddressing that address pool and described address pool comprise;
Distribution module 503 is used for described subscriber equipment is distributed in the network address of described free time.
Referring to Fig. 6, described acquisition module 502 comprises:
The first query unit 502a is used for according to described address assignment request, inquires about described local address pool mapping relations of preserving, at least one pond, subaddressing that obtains described address pool correspondence;
The first acquiring unit 502b is used for obtaining any one pond, subaddressing from described at least one pond, subaddressing; And from described any one pond, subaddressing, obtain the idle network address.
Described address assignment request is carried the port numbers of described subscriber equipment, and described local address pool mapping relations of preserving also comprise: the pond, subaddressing of port numbers and described port numbers correspondence, and correspondingly, referring to Fig. 7, described acquisition module 502 comprises:
The second query unit 502c is used for obtaining the subaddressing pond corresponding with described port numbers according to the described local address pool mapping relations of preserving of the port numbers inquiry of described subscriber equipment from described address pool;
Second acquisition unit 502d is used for obtaining from the pond, subaddressing corresponding with described port numbers the idle network address.
Referring to Fig. 8, described device also comprises:
Expansion module 504 is used for receiver address pond extended instruction; Described address pool extended instruction comprises: the IP address field;
Described IP address field is as the pond, subaddressing, and related with address pool with pond, described subaddressing, incidence relation is added into described local address pool mapping relations of preserving.
Described address assignment request is carried in packet data protocol message, internet protocol control protocol configuring request, mobile IP registration or the binding update messages.
The all or part of step that one of ordinary skill in the art will appreciate that realization the foregoing description can be finished by hardware, also can instruct relevant hardware to finish by program, described program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium of mentioning can be a read-only memory, disk or CD etc.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the network address method of distributing is characterized in that described method comprises:
Receive the address assignment request of subscriber equipment;
According to described address assignment request and local address pool mapping relations of preserving, from address pool, obtain the idle network address; Described address pool mapping relations comprise at least one pond, subaddressing that address pool and described address pool comprise;
Described subscriber equipment is distributed in the network address of described free time.
2. method according to claim 1 is characterized in that, according to described address assignment request and local address pool mapping relations of preserving, obtains the idle network address from address pool, specifically comprises:
According to described address assignment request, inquire about described local address pool mapping relations of preserving, at least one pond, subaddressing that obtains described address pool correspondence;
From described at least one pond, subaddressing, obtain any one pond, subaddressing;
From described any one pond, subaddressing, obtain the idle network address.
3. method according to claim 1, it is characterized in that, described address assignment request is carried the port numbers of described subscriber equipment, described local address pool mapping relations of preserving also comprise: the pond, subaddressing of port numbers and described port numbers correspondence, correspondingly, according to described address assignment request and local address pool mapping relations of preserving, from the pond, subaddressing of correspondence, obtain the idle network address, specifically comprise:
According to the described local address pool mapping relations of preserving of the port numbers inquiry of described subscriber equipment, from described address pool, obtain the subaddressing pond corresponding with described port numbers;
From the subaddressing pond corresponding, obtain the idle network address with described port numbers.
4. method according to claim 1 is characterized in that, described method also comprises:
Receiver address pond extended instruction; Described address pool extended instruction comprises: the IP address field;
Described IP address field is as the pond, subaddressing, and related with address pool with pond, described subaddressing, incidence relation is added into described local address pool mapping relations of preserving.
5. according to each described method of claim 1-4, it is characterized in that described address assignment request is carried in packet data protocol message, internet protocol control protocol configuring request, mobile IP registration or the binding update messages.
6. a network address assigned unit is characterized in that, described device comprises:
Receiver module is used to receive the address assignment request of subscriber equipment;
Acquisition module is used for obtaining the idle network address according to described address assignment request and local address pool mapping relations of preserving from address pool; Described address pool mapping relations comprise the mapping relations between at least one pond, subaddressing that address pool and described address pool comprise;
Distribution module is used for described subscriber equipment is distributed in the network address of described free time.
7. device according to claim 6 is characterized in that, described acquisition module comprises:
First query unit is used for according to described address assignment request, inquires about described local address pool mapping relations of preserving, at least one pond, subaddressing that obtains described address pool correspondence;
First acquiring unit is used for obtaining any one pond, subaddressing from described at least one pond, subaddressing; And from described any one pond, subaddressing, obtain the idle network address.
8. device according to claim 6, it is characterized in that described address assignment request is carried the port numbers of described subscriber equipment, described local address pool mapping relations of preserving also comprise: the pond, subaddressing of port numbers and described port numbers correspondence, correspondingly, described acquisition module comprises:
Second query unit is used for obtaining the subaddressing pond corresponding with described port numbers according to the described local address pool mapping relations of preserving of the port numbers inquiry of described subscriber equipment from described address pool;
Second acquisition unit is used for obtaining from the pond, subaddressing corresponding with described port numbers the idle network address.
9. device according to claim 6 is characterized in that, described device also comprises:
Expansion module is used for receiver address pond extended instruction; Described address pool extended instruction comprises: the IP address field;
Described IP address field is as the pond, subaddressing, and related with address pool with pond, described subaddressing, incidence relation is added into described local address pool mapping relations of preserving.
10. according to each described device of claim 6-9, it is characterized in that described address assignment request is carried in packet data protocol message, internet protocol control protocol configuring request, mobile IP registration or the binding update messages.
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Application publication date: 20111102 |