CN102404419A - IP (internet protocol) address distribution method and router - Google Patents
IP (internet protocol) address distribution method and router Download PDFInfo
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- CN102404419A CN102404419A CN201110376511XA CN201110376511A CN102404419A CN 102404419 A CN102404419 A CN 102404419A CN 201110376511X A CN201110376511X A CN 201110376511XA CN 201110376511 A CN201110376511 A CN 201110376511A CN 102404419 A CN102404419 A CN 102404419A
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Abstract
The embodiment of the invention provides an IP (internet protocol) address distribution method and a router, relating to the communication field; IP address can be fully utilized and the earnings of an operator are effectively increased. The method comprises the steps of judging user type by the router, and setting available IP address and distributing the available IP address according to the user type. The router comprises a judgment unit for judging the user type; a setting unit for setting the IP address according to the user type; and a distribution unit for distributing the available IP address for the user. The scheme provided by the embodiment of the invention is applied to the IP address distribution.
Description
Technical field
The present invention relates to the communications field, relate in particular to the distribution method and the router of a kind of procotol IP (Internet Protocol) address.
Background technology
In modern times in the network; Support IPOE (IP over Ethernet; IP message on the Ethernet) or the user of PPPOE (point-to-point protocol over Ethernet, the point-to-point connection protocol on the Ethernet), need be to router device application IP address; Router device can distribute idle IP address to the user, thereby user's address acquisition can be reached the standard grade and carried out flow and transmit.
Router device is for the method for user's distributing IP address: at first on router device, create a plurality of address pool; Each address pool all disposes corresponding section (address field); User's IP address then obtains in the section scope; The section scope comprises .0 to .255, and as user during to router device application IP address, router device can obtain idle IP and distribute to the user from address pool.Owing to after supporting that the user of IPOE reaches the standard grade, need to use the IP address that obtains to carry out flow and transmit, do not comprise the network address of .0 or the broadcast address of .255 so router is distributed to user's IP address.
State in the use in the process of distribution method of IP address; The inventor finds, for the user who supports PPPOE, owing to be point-to-point communication; The user carries out the flow forwarding and does not check concrete IP address; But address distribution is consistent with the user who supports IPOE but, promptly distribute to user's addresses do not comprise yet the tail address be .0 or with the special address of .255, so just caused the waste of IP address.
Summary of the invention
Embodiments of the invention provide the distribution method and the router of a kind of IP address, can make full use of the IP address, effectively improve the income of operator.
According to an aspect of the embodiment of the invention, the distribution method of a kind of IP address comprises:
The type of judges;
Type according to said user is provided with the IP available address;
For the user distributes said IP available address.
Alternatively, said type according to said user is provided with the IP available address to the user and comprises: if said user's type is the IP address setting that is the tail address unavailable address with .0 and .255 then for supporting the user of IP message IPOE on the Ethernet; If said user's type is for supporting the user of the point-to-point connection protocol PPPOE on the Ethernet, be .0 and .255 that the IP address setting of tail address is an available address then.
Alternatively, distribute said IP available address for the user after, also comprise: record is assigned with the type of IP address user; When detecting network side to flow that the user sends, whether the type of inquiring about the corresponding user of the purpose IP of said flow is the user of PPPOE; If the user's that the purpose IP of said flow is corresponding type for supporting the user of PPPOE, is then transmitted to said flow encapsulation PPPOE head and to the user.
Alternatively, before the type of judges, also comprise:, confirm that said user is validated user with user's authentication of holding consultation.
According to an aspect of the embodiment of the invention, a kind of router comprises:
Judging unit is used for the type of judges;
The unit is set, is used for the IP available address being set according to said user's type;
Allocation units are for the user distributes said IP available address.
Alternatively, the said unit that is provided with specifically is used for: when said user's type is the user of IP message IPOE on the support Ethernet, be the IP address setting that is the tail address unavailable address with .0 and .255; When said user's type when supporting the user of the point-to-point connection protocol PPPOE on the Ethernet, be .0 and .255 that the IP address setting of tail address is an available address.
Alternatively, said router also comprises:
Record cell is used to write down the type that is assigned with the IP address user;
Query unit is used for when detecting network side to flow that the user sends, and whether the type of inquiring about the corresponding user of the purpose IP of said flow is the user of PPPOE;
The encapsulate forwarded unit, the type that is used for as the corresponding user of the purpose IP of said flow is when supporting the user of PPPOE, transmits to said flow encapsulation PPPOE head and to the user.
Alternatively, said router also comprises: the negotiation confirmation unit, be used for before the type of judges, and with user's authentication of holding consultation, confirm that said user is validated user
The embodiment of the invention provides the distribution method and the router of a kind of IP address; Type through the router judges; Type according to said user is provided with the IP available address and for the user distributes said IP available address, can makes full use of the IP address so again, effectively improves the income of operator.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the 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.
The distribution method flow chart of a kind of IP address that Fig. 1 provides for embodiment 1;
The distribution method flow chart of a kind of IP address that Fig. 2 provides for embodiment 2;
The structured flowchart of a kind of router that Fig. 3 provides for embodiment 3;
The structured flowchart of the another kind of router that Fig. 4 provides for embodiment 3.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Embodiment 1:
The embodiment of the invention provides a kind of IP the distribution method of address, and is as shown in Figure 1, and this method comprises:
11, the type of judges.
12, the type according to said user is provided with the IP available address.
13, distribute said IP available address for the user.
The network equipment, such as router, the type of elder generation's judges when giving user's distributing IP address is if said user's type is the IP address setting that is the tail address unavailable address with .0 and .255 then for supporting the user of IPOE; If said user's type is for supporting the user of PPPOE; Be the IP address setting that with .0 and .255 the tail address available address then; That is to say; Comprise in the said IP available address with .0 and .255 be IP address and other of tail address non-be the IP address of tail address with .0 and .255, then router for the user distributes said IP available address, be that the user who supports PPPOE just can be distributed in the IP address of tail address with .0 and .255 like this; Thereby having made full use of with .0 and .255 is the IP address of tail address, has avoided waste.
The embodiment of the invention provides a kind of IP the distribution method of address; Type through the router judges; Type according to said user is provided with the IP available address and for the user distributes said IP available address, can makes full use of the IP address so again, effectively improves the income of operator.
Embodiment 2:
The embodiment of the invention provides a kind of IP the distribution method of address, and is as shown in Figure 2, and this method comprises:
21, router and the user authentication of holding consultation confirms that said user is validated user.
The flow process of this step specifically can comprise:
210, the user sends a PADI (PPPoE Active Discovery Initiation) message to router, and beginning PPPOE inserts.
211, router device sends PADO (PPPoE Active Discovery Offer) message to user response.
212, the user initiates PADR (PPPoE Active Discovery Request) request according to the PADO message that receives to router.
213, router produces a Session ID, issues the user through PADS (PPPoE Active Discovery Session Confirmation) message.
214, carry out LCP (the Link Control Protocol of PPP between user and the router; LCP) consults; Beginning chap (challenge; Challenge) authentication, whether AAA (authentication (Authentication), mandate (Authorization) and charging (Accounting)) server is legal according to the user profile judges, responds authentication success message or authentification failure message then to router.If success, promptly the user is legal, then responds and gives router for the related service attribute that carries consultation parameter and user in user's the authentication success message, changes 215.If authentification failure, promptly the user is illegal, and then the return authentication failure message is given router, and flow process leaves it at that.
215, router returns to the user with authentication result, confirms that said user is validated user.
22, the type of judges.
23, the type according to said user is provided with the IP available address.
24, distribute said IP available address for the user.
Router is wanted the type of first judges when giving user's distributing IP address, if said user's type is the IP address setting that is the tail address unavailable address with .0 and .255 then for supporting the user of IP message IPOE on the Ethernet; If said user's type is for supporting the user of the point-to-point connection protocol PPPOE on the Ethernet; Be .0 and .255 that the IP address setting of tail address is an available address then; That is to say; Comprise in the said IP available address with .0 and .255 be IP address and other of tail address non-be the IP address of tail address with .0 and .255, then router for the user distributes said IP available address, be that the user who supports PPPOE just can be distributed in the IP address of tail address with .0 and .255 like this.
25, note institute's IP address allocated and corresponding user type thereof.
Router is after giving user's distributing IP address, with the corresponding user type in the said IP of record address.
The user can carry out two-way flow with network side and transmit after reaching the standard grade in acquisition IP address, all is according to purpose IP address because flow is transmitted, as long as there is purpose IP address promptly to know the destination of transmitted traffic.So can not be affected from the flow forwarding of user-to-network side; And the flow from the network side to user is transmitted, when being sent to router, and the user type of the order ground IP that the said flow of query router is transmitted; If support the user of IPOE then directly flow to be forwarded to the user; If support the user of PPPOE, router sends to the user with regard to directly carrying out the forwarding of point-to-point to the corresponding PPPOE head of flow encapsulation with flow.Even can know that in sum it is the IP address of tail address that the user who supports PPPOE is assigned to .0 and .255, the bidirectional traffics of user and network side are transmitted and can be affected.
To specifically illustrate the application of said method below.
Suppose that the router in the said method is BRAS (Broadband Remote Access Server; Broadband Remote Access Server) disposes local pool on the equipment; Its default gateway is 110.1.1.1, and subnet mask is 255.255.255.0, more said local pool is divided into two section; Wherein the scope of section0 is 110.1.1.0～110.1.1.124, and the scope of section1 is 110.1.1.125～110.1.1.255.
Suppose to support that the user of PPPOE will apply for inserting local network, then the user sends a PADI message to BRAS equipment, and beginning PPPOE inserts.BRAS equipment is then to user response PADO message.The user initiates the PADR request according to the PADO message that receives to BRAS equipment.BRAS equipment produces a Session ID, issues the user through the PADS message.The LCP that carries out PPP between user and the BRAS equipment consults, beginning chap authentication, and aaa server is legal according to the user profile judges, responds the authentication success message then to BRAS equipment.BRAS equipment then carries consultation parameter and user's related service attribute and gives subscriber authorisation, confirms that this user is validated user.
After BRAS equipment confirmed that this user is validated user, BRAS equipment and user began to carry out NCP (Network Core Protocol, Network Core Protocol) (like IPCP; IP Control Protocol; IP control protocol) consult, in this negotiations process, BRAS equipment can be judged user's type for supporting the user of PPPOE; So 110.1.1.0 and 110.1.1.255 are set to available address, these two addresses as the user's addresses that can distribute to this support PPPOE.At this, BRAS equipment is distributed to the user with IP address 110.1.1.0, and notes the corresponding user type of said IP address 110.1.1.0 for supporting the user of PPPOE.
The user uses IP address 110.1.1.0 to reach the standard grade; When carrying out the flow forwarding,, all sends flow according to IP address, order ground because transmitting with network side, can be not influenced so transmit from the flow of user-to-network side; And the flow from the network side to user is transmitted; Though destination address is network address 110.1.1.0, when flow was forwarded to BRAS equipment, on BRAS equipment, can find IP address 110.1.1.0 was the user's IP address of supporting PPPOE; This moment, BRAS equipment directly gave said flow encapsulation corresponding PPPOE head, sent it to the user of said support PPPOE.
Can know that by above-mentioned object lesson when supporting that the user of PPPOE uses the tail address as the special address of .0 and .255, the bidirectional traffics forwarding between user and the network side can not be affected.
The embodiment of the invention provides a kind of IP address assignment method; Type through the router judges; Type according to said user is provided with the IP available address and for the user distributes said IP available address, can makes full use of the IP address so again, effectively improves the income of operator.
In addition, router records is assigned with the type of IP address user, and when detecting network side to flow that the user sends, and whether the type of inquiring about the corresponding user of the purpose IP of said flow is the user of PPPOE; If, then transmit to said flow encapsulation PPPOE head and to the user, make that like this bidirectional traffics forwarding between user and the network side can not be affected, and implementation is simple.
Embodiment 3:
The embodiment of the invention also provides a kind of router, and is as shown in Figure 3, and said router comprises: judging unit 42 is provided with unit 43, allocation units 44.
Judging unit 42 is used for the type of judges.
Router is wanted the type of first judges when giving user's distributing IP address, if said user's type is the IP address setting that is the tail address unavailable address with .0 and .255 then for supporting the user of IP message IPOE on the Ethernet; If said user's type is for supporting the user of the point-to-point connection protocol PPPOE on the Ethernet; Be .0 and .255 that the IP address setting of tail address is an available address then; That is to say; Comprise in the said IP available address with .0 and .255 be IP address and other of tail address non-be the IP address of tail address with .0 and .255, then router for the user distributes said IP available address, be that the user who supports PPPOE just can be distributed in the IP address of tail address with .0 and .255 like this.
Alternatively, shown in 4, said router also comprises negotiation confirmation unit 41, record cell 45, query unit 46, encapsulate forwarded unit 47.
Before the type of said judging unit 42 judges, also need negotiation confirmation unit 41 and the user said user of authenticate-acknowledge that holds consultation to be validated user, its concrete steps have detailed description in step 210～215, repeat no more at this.
Router is after giving user's distributing IP address according to said user's type, with the corresponding user type in the said IP of record address.
Encapsulate forwarded unit 47, the type that is used for as the corresponding user of the purpose IP of said flow is when supporting the user of PPPOE, transmits to the PPPOE head of said flow encapsulation correspondence and to the user.
The user can carry out two-way flow with network side and transmit after reaching the standard grade in acquisition IP address, all is according to purpose IP address because flow is transmitted, as long as there is purpose IP address promptly to know the destination of transmitted traffic.So can not be affected from the flow forwarding of user-to-network side; And the flow from the network side to user is transmitted, and when being sent to router, router can be found the user type of the order ground IP of said flow forwarding; If support the user of IPOE then directly flow to be forwarded to the user; If support the user of PPPOE, router sends to the user with regard to directly carrying out the forwarding of point-to-point to the corresponding PPPOE head of flow encapsulation with flow.Even can know that in sum it is the IP address of tail address that the user who supports PPPOE is assigned to .0 and .255, the bidirectional traffics of user and network side are transmitted and can be affected.
The embodiment of the invention provides a kind of router, and through the type of judges, the type according to said user is provided with the IP available address and for the user distributes said IP available address, can makes full use of the IP address so again, effectively improves the income of operator.
In addition, router records is assigned with the type of IP address user, and when detecting network side to flow that the user sends, and whether the type of inquiring about the corresponding user of the purpose IP of said flow is the user of PPPOE; If, then transmit to said flow encapsulation PPPOE head and to the user, make that like this bidirectional traffics forwarding between user and the network side can not be affected, and implementation is simple.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be accomplished through the relevant hardware of program command; Aforesaid program can be stored in the computer read/write memory medium; This program the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
The above; Be merely embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technical staff who is familiar with the present technique field is in the technical scope that the present invention discloses; The variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of said claim.
Claims (8)
1. the distribution method of a procotol IP address is characterized in that, comprising:
The type of judges;
Type according to said user is provided with the IP available address;
For the user distributes said IP available address.
2. method according to claim 1 is characterized in that, said type according to said user is provided with the IP available address to the user and comprises:
If said user's type is the IP address setting that is the tail address unavailable address with .0 and .255 then for supporting the user of IP message IPOE on the Ethernet;
If said user's type is for supporting the user of the point-to-point connection protocol PPPOE on the Ethernet, be .0 and .255 that the IP address setting of tail address is an available address then.
3. method according to claim 1 and 2 is characterized in that, distribute said IP available address for the user after, also comprises:
Record is assigned with the type of IP address user;
When detecting network side to flow that the user sends, whether the type of inquiring about the corresponding user of the purpose IP of said flow is the user of PPPOE;
If the user's that the purpose IP of said flow is corresponding type for supporting the user of PPPOE, is then transmitted to said flow encapsulation PPPOE head and to the user.
4. according to claim 1 or 2 or 3 described methods, it is characterized in that, before the type of judges, also comprise:
With user's authentication of holding consultation, confirm that said user is validated user.
5. a router is characterized in that, comprising:
Judging unit is used for the type of judges;
The unit is set, is used for the IP available address being set according to said user's type;
Allocation units are used to the user and distribute said IP available address.
6. router according to claim 5 is characterized in that, the said unit that is provided with specifically is used for: when said user's type is the user of IP message IPOE on the support Ethernet, be the IP address setting that is the tail address unavailable address with .0 and .255;
When said user's type when supporting the user of the point-to-point connection protocol PPPOE on the Ethernet, be .0 and .255 that the IP address setting of tail address is an available address.
7. according to claim 5 or 6 described routers, it is characterized in that said router also comprises:
Record cell is used to write down the type that is assigned with the IP address user;
Query unit is used for when detecting network side to flow that the user sends, and whether the type of inquiring about the corresponding user of the purpose IP of said flow is the user of PPPOE;
The encapsulate forwarded unit, the type that is used for as the corresponding user of the purpose IP of said flow is when supporting the user of PPPOE, transmits to said flow encapsulation PPPOE head and to the user.
8. according to claim 5 or 6 or 7 described routers, it is characterized in that said router also comprises:
The negotiation confirmation unit was used for before the type of judges, with user's authentication of holding consultation, confirmed that said user is validated user.
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| CN201110376511XA CN102404419A (en) | 2011-11-23 | 2011-11-23 | IP (internet protocol) address distribution method and router |
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| CN201110376511XA CN102404419A (en) | 2011-11-23 | 2011-11-23 | IP (internet protocol) address distribution method and router |
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Application publication date: 20120404 |