WO2013026306A1 - Method and system for allocating identifier and gateway address - Google Patents

Method and system for allocating identifier and gateway address Download PDF

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Publication number
WO2013026306A1
WO2013026306A1 PCT/CN2012/076698 CN2012076698W WO2013026306A1 WO 2013026306 A1 WO2013026306 A1 WO 2013026306A1 CN 2012076698 W CN2012076698 W CN 2012076698W WO 2013026306 A1 WO2013026306 A1 WO 2013026306A1
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WO
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Prior art keywords
dhcp
user
address
relay
server
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PCT/CN2012/076698
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French (fr)
Chinese (zh)
Inventor
姚成亮
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中兴通讯股份有限公司
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00Network arrangements or network protocols for addressing or naming
    • H04L61/20Address allocation
    • H04L61/2061Address allocation involving aspects of pools of addresses, e.g. assignment of different pools of addresses to different dynamic host configuration protocol [DHCP] servers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00Network arrangements or network protocols for addressing or naming
    • H04L61/20Address allocation
    • H04L61/2007Address allocation internet protocol [IP] addresses
    • H04L61/2015Address allocation internet protocol [IP] addresses using the dynamic host configuration protocol [DHCP] or variants

Abstract

A method and a system for allocating an identifier and a gateway address. The method comprises: deploying a dynamic host configuration protocol (DHCP) relay component on an access router or an edge router; when a user accesses an identifier/locator separation network, initiating a DHCP request packet, the DHCP request packet carrying a media access control (MAC) address of the user; an access router or an edge router that the user accesses relaying the DHCP request packet of the user to a DHCP server in the identifier/locator separation network, to request user address allocation; the DHCP server allocating a unique identifier in the entire network to the user through binding the MAC address of the user to an identifier. This application ensures uniqueness of user address allocation.

Description

A method for allocating identity and address of the gateway and systems

FIELD

The present invention relates to mobile communications and Internet technologies, and more particularly, to a method and system for dispensing identity and address of the gateway.

Background technique

In the traditional Internet, the user identity information and location information are uniform. IP address of the network both as a location identifier of communication and as a user's identity. In the TCP (Transmission Control Protocol, Transmission Control Protocol) / IP network, the IP address of the system by the user's query routing packets to the destination, and the application to establish a connection to build complete application functionality through a session IP address. Therefore, IP addresses will have a double role, both as an application on the user's identity, and location information as the next communication node. In this case, when the user moves the position, along with the identity of the changes, which led to the upper layer service to be interrupted, and therefore can not achieve mobility user services and severely hampered the development of mobile Internet applications .

Based on the above issue, the introduction of the current identity and location identifier separation network technology. An identity locator separation network shown in Figure 1, Host host is configured as identity AID; as the ASR access router, with a location identifier RID; mapping relationship between the ILR as a server, save the mapping relationship between the AID and RID information. Host Host all registered and certified by ASR and into the network. Host access to the ASR, ASR and leave act, ASR are required to report to the ILR. ILR save Host identity identification and location mapping relationship between the AID RID's <AID, RID>. ILR while providing a response to the query mappings. In the packet forwarding process, ASR need to initiate a mapping relational query to the ILR.

Also other identity similar identifier and location identifier separation network architecture as well as LISP (Locator / ID Separation Protocol, separate identifier and location identifier) ​​and the PMIP (Proxy Mobile IP, Proxy Mobile IP) network, etc., or the like in LISP PMIP identifier and location identifier separation network architecture, the ASR device corresponding to an edge router, realized ASR similar functions, for example in LISP network edge router corresponding to the entrance to the tunnel router (Ingress tunnel router, abbreviated as ITR) or outlet tunnel router (Egress tunnel router, referred to as ETR) and so on. The identifier and location identifier separation network, the user is always assigned a unique identity, identity (AID) i.e. regardless of which user equipment access from ASR, which is obtained by the same fixed. At present, the identity and location identifier separation network usually preclude the use of IP address as the user's identity.

The identifier and location identifier separation network, the user of each user access server ASR inlet addresses are generally not the same, and therefore, users in different ASR access identifier and location identifier separation network, the system gateway address assigned to the user should be does not correspond to the same, and should be located with its access traffic is good ASR monthly subscriber access port address.

Existing IP network address assignment method essentially preclude the use of DHCP (Dynamic Host Configuration Protocol, Dynamic Host Configuration Protocol) technology, but only for the same techniques typically DHCP address pool is configured to determine one or more gateway address as the protocol and the ACK (Acknowledgment, acknowledgment) packet option (option) 3 assigned to the user, as shown in FIG. SUMMARY

In summary, the prior art has the following technical problems: the current IP network addressing scheme, remain unique user address assignment method is ambiguous; for the same address pool, generally can not automatically identify and assign the position of the user depending on the access correspondingly gateway address.

The present invention solves the technical problem is to provide an identity and a gateway address assignment method and system, in order to achieve a unique user address assignment and automatic assignment of user access depending on the position of gateway address corresponding thereto.

To solve the above problems, the present invention provides a method for allocating identity,

Deployment relay (Relay) component Dynamic Host Configuration Protocol (DHCP) in the identifier and location identifier separation network edge router or the access router;

To access the user identifier and location identifier is separated from the network, it initiates a DHCP request packet, the DHCP request message carries the user's media access control (MAC) address;

The user access to the edge router or the access router to pass through only DHCP Relay component Burgundy deployed DHCP server relay the DHCP request the user identifier and the location identifier separation network, user address allocation request; said DHCP Bian manner server MAC address bound with the user identity identification, the whole network assigned a unique identity for the user.

Preferably, the addition of a user identifier and location identifier separation network, and saves the user configuration binding between the MAC address of its identity on the DHCP server.

Preferably, the binding relationship between the MAC address and the identity of one to one correspondence relationship. The present invention further provides a gateway address assignment method,

Deployment relay (Relay) component Dynamic Host Configuration Protocol (DHCP) in the identifier and location identifier separation network edge router or the access router;

To access the user identifier and location identifier is separated from the network, it initiates a DHCP request packet, the DHCP request message carries the user's media access control (MAC) address;

The user access to an access router DHCP server or an edge router isolated network DHCP relay user request "¾, requesting the user gateway address assigned by DHCP Relay assembly deployed to the identifier and location identifier;

The DHCP server automatically assigns the user with the user access router or an access gateway corresponding to the edge router address.

Preferably, when initiated after the user access an access router or edge router receiving the user to access the network DHCP request message to the DHCP server relay, gateway address request to the DHCP server distribution;

The DHCP server according to the DHCP request unicast packets DHCP Relay Agent IP address and gateway address assigned to the user.

Preferably, the DHCP server configuration unified user address pool and configured with the MAC address binding relationship between the user and the identity.

Preferably, the edge router or the access router receives the broadcast DHCP request user only when the text Burgundy, which DHCP Relay Agent IP address included in the DHCP request packets giaddr field Gen 4, the relay transmits to the the DHCP server;

The DHCP server receives the DHCP request packet, obtaining the value of the giaddr field, and package the user to respond to the DHCP acknowledgment (ACK) message option 3 option, as allocated to the user gateway address. Preferably, the edge router or the access router receives the broadcast DHCP request user packet, after the DHCP request unicast message sent encapsulated to the DHCP server relay, wherein the encapsulated DHCP request packets the encapsulated IP source address for DHCP Relay Agent IP address;

The DHCP server receives the DHCP request message Gen obtain the IP source address of the encapsulated packet to the DHCP request, and package the user to respond to the DHCP ACK message option 3 option, as an allocation gateway address to the user.

The present invention further provides an address allocation system, applied identifier and location identifier separation network, said system comprising a DHCP server or an edge router and an access router DHCP Relay module, wherein:

The DHCP Relay module is configured to: when the user accesses the identifier and location identifier separation network request packet to the DHCP server, DHCP relay user, user address allocation request; wherein the DHCP request packet the user media access control (MAC) address; the DHCP server is set to: mode using the MAC address preclude binding of the user identity identification, the whole network assigned a unique identity for the user.

Preferably, the DHCP server is configured to: automatically configured with the gateway address assignment mode, the user starts automatically assigned to the access router or edge router of the access gateway corresponding to the user address feature.

Preferably, the DHCP Relay module is configured to: initiate upon receiving the user to access the network DHCP request packet, the unicast to the DHCP server, an address request to the gateway DHCP server;

The DHCP server is configured to: according to the unicast DHCP request message DHCP Relay Agent IP address and gateway address assigned to the user.

Preferably, the DHCP Relay module is configured to: receive a user to broadcast a DHCP request packet, which is DHCP Relay Agent IP address contained in the DHCP request message giaddr field, the relay transmits to the DHCP server, ;

The DHCP server is configured to: when receiving the DHCP request packet, obtaining the value of the giaddr field, option 3 option and package the user to respond to the DHCP ACK message, as the user assigned to the gateway address.

Preferably, the DHCP Relay module is configured to: upon receiving a user's broadcast the DHCP request packet, the DHCP request packet encapsulated unicast transmission to relay the DHCP server, wherein the DHCP request packets encapsulated the encapsulated IP source address for DHCP Relay Agent IP address;

The DHCP server is configured to: when receiving the DHCP request packet, the source address of the encapsulated IP obtain DHCP request packets Gen 4, and package the user to respond to the DHCP ACK message option 3 option , as the user assigned to the gateway address.

Preferably, the DHCP server is configured to: configure a unified user address pool, and when the user is added to the network, configuration of the user and stores the binding relationship between the MAC address of its identity on the DHCP server.

One kind of DHCP relay (Relay) module, used identifier and location identifier separation network, wherein, the DHCP Relay module is configured to:

The access router or edge router, when the user accesses the identifier and location identifier separation network, the DHCP request message to the DHCP server relay the user, user address allocation request; wherein the DHCP request message carries the user media access control (MAC) address;

The user identification, by the DHCP server with the MAC address mode preclude binding of the user identity identification is allocated to the user, and the entire network.

Preferably, the DHCP Relay module is configured to: initiate upon receiving the user to access the network DHCP request packet, the unicast to the DHCP server, an address request to the gateway DHCP server;

Wherein, by the DHCP server according to the request packet of the unicast DHCP message of DHCP Relay Agent IP address and gateway address assigned to the user.

Preferably, the DHCP Relay module is configured to: receive a user to broadcast a DHCP request packet, which is DHCP Relay Agent IP address contained in the DHCP request message giaddr field, the relay transmits to the DHCP server, ;

The DHCP ACK message option 3 option which is received by the DHCP server when the DHCP request packet, obtaining the value of the giaddr field, and to package in response to the user as a gateway address assigned to the user .

Preferably, the DHCP Relay module is configured to: upon receiving a user's broadcast the DHCP request packet, the DHCP request packet encapsulated unicast transmission to relay the DHCP server, wherein the DHCP request packets encapsulated the encapsulated IP source address DHCP Relay Agent IP address;

The DHCP ACK message option 3 option wherein, by the DHCP server receives the DHCP request packet, obtain the IP source address of the encapsulated Gen 4 DHCP request packets, and to pack in response to the user , assigned to the user as the gateway address.

When the gateway address and preclude the use of the above-described addressing scheme identifier and location identifier separation network, the address can be implemented separate identity and location identifier of the network is assigned a unique and different ASR enabling user access to the other or from the ASR, which gateway automatically assigned address corresponds to the ASR access it. Since the gateway address is automatically adapt and distribution system is simplified DHCP configuration; the same time, since there is no modify DHCP client interface protocols, so that the user can maintain compatibility with existing equipment is implemented, no impact to the user equipment. Brief Description

The drawings described herein to provide a further understanding of the present invention, constitute a part of this application, exemplary embodiments of the present invention are used to explain the present invention without unduly limiting the present invention. In the drawings:

FIG 1 is a schematic diagram of a conventional network identity and location of separation;

FIG 2 is a conventional IP network DHCP and DHCP Relay address and gateway address assigned; Figure 3 a schematic diagram of the architecture identifier and location identifier separation network user address assignment embodiment of the present invention;

FIG user address 4 of the present invention and an embodiment of a process flowchart corresponding allocated gateway address automatically assigned different user access location;

FIG 5 is a schematic diagram of an embodiment of the present invention;

6 is a schematic of a second embodiment of the present invention. Preferred embodiment of the present invention.

To identity and location identifier separation network architecture shown in FIG. 2 as an example, the specific implementation and the user address allocation gateway address distribution architecture according to the present embodiment is as follows:

In the present embodiment, the position identifier and the network identifier separation preclude the use of the same IP network like a conventional DHCP Server (DHCP server) + combination of DHCP Relay (DHCP Relay) assigned to access user identity; and concentrated in the whole network deploy DHCP server component on the server, deploy DHCP Relay components on the ASR.

It is assumed that the user through WIFI (Wireless Fidelity, WiFi technology) access to the ASR, the DHCP procedure initiated, the ASR received DHCP messages to the user, according to the configured DHCP Server IP address (DHCP Server is disposed on each ASR IP address), the user unicast DHCP packets to the remote centralized deployment of DHCP Server components, unified distribution network-wide user identity by the DHCP Server component.

Wherein, DHCP Server preclude tied with the user's MAC (Media Access Control, media access control) address and the identity (i.e. IP address) or assigned a unique user identity other fixed like. Specifically, when the user identifier and location identifier added to separate the network, the network administrator configures and stores the binding relationship between the user identity and its MAC address in the DHCP server. The binding relationship between MAC address and IP address can be a simple one to one correspondence.

Since MAC- like factory equipment has been designed with the user and will not be changed, so that the user equipment for fixed terms, and, DHCP protocol is supported carries a MAC address to the DHCP server, so that, according to the MAC DHCP server fields corresponding to the assigned address. Net uniqueness. Ranking the above description that the address allocation method may be implemented in the entire network is assigned a unique address, and further, the embodiment according to the present embodiment, depending on the position of the user access, automatically preclude the following manner corresponding address assigned to the gateway:

First, consider the DHCP Server needs to reach the respective user access inlet ASR server route, it needs to be configured for each different ASR gateway address, as shown in FIG. 3, referred to as the gateway address ASR1 gwIPl, ASR2 gateway address denoted gwIP2 . Since the user space identifier and locator separation network is unified, that is, regardless of which user access in ASR, its address allocation is the same. Thus, the user needs to configure the unified address pool DHCP Server, which should be the gateway address according to an adaptive user allocation ASR was accessed, i.e. when the user when dispensing gwIPl ASR1 access, or when the user moves to the access ASR2 when assigning gwIP2, other ASR access, empathy and so on.

Second, when considering the use of DHCP Relay function, the user can configure the access port - Agent DHCP Relay function, shown in Figure 3, gwIPl / gwIP2 configuration initiates a DHCP request packet is a DHCP Relay Agent IP, the client, via a first hop DHCP relay, DHCP relay Agent will be the DHCP RelayAgent IP address (i.e. illustration gwIPl or gwIP2) completed in accordance with protocol to relay DHCP messages giaddr field, so that the present embodiment by using the characteristics, by modification or DHCP Server complementary method to automatically assign the gateway address: when the DHCP Server receives a DHCP relay relay to the DHCP Request packet automatically obtain its giaddr field values, and packaged in their response to the client DHCP ACK packet option 3 option (i.e. allocated gateway address field of the client), and then in response to the client; client receives the ACK packet, such as the commonly used DHCP protocol processing, which will be configured as a gateway address of the client.

Further, considering the substantial DHCP Relay function initiated by the client to the DHCP broadcast packets encapsulated and sent unicast DHCP Server, the encapsulated unicast IP packet source address is DHCP RelayAgent IP address (i.e., illustrated gwIPl or gwIP2, ASR inlet user IP address). Therefore, the present embodiment may also be implemented automatically allocated gateway address by another method: the source IP address acquired DHCP Request messages in IP encapsulation where DHCP Server end, and package it to respond to the client's DHCP ACK message option3 option, then the response to the client; client receives the ACK packet, as usual some DHCP protocol processing, which will be configured as a gateway address of the client.

Preclude the use of the above two methods may be implemented depending on the user access location, automatically assign object corresponding gateway address.

Specifically, based on the allocation and assignment of user addresses architecture gateway address, the gateway address allocation processing flow of the method according to the present embodiment is shown in Figure 4, including the steps of:

Step S100, the user access network identity and location identifier separation, which first sends a DHCP client DHCP DISCOVER (found) Burgundy DHCP discovery packet Server; step SI 10, ASR DHCP Relay Agent received DHCP DISCOVER (DHCP client sends a DHCP discovery ) packets, then unicast to the distal end of the DHCP Server;

Step SI 20, DHCP Server DHCP OFFER response (DHCP offer) message; step SI 30, ASR DHCP Relay Agent DHCP OFFER message is received and forwarded to the DHCP client;

Step S140, the user initiates the DHCP client DHCP the Request (DHCP Request) message, the address assignment request to the DHCP Server;

Step S150, ASR DHCP Relay Agent receives the DHCP Request messages sent from the DHCP client, and Relay Agent IP (i.e. inlet user IP) addresses on the DHCP Request message giaddr field; ASR DHCP Relay Agent to Relay - Agent as IP unicast DHCP Request message encapsulated IP header source address of DHCP Request unicast IP packet encapsulated;

Step S160, ASR DHCP Relay Agent relay encapsulated IP unicast DHCP Request messages to the DHCP Server;

Step S 170, DHCP Server receives the DHCP Request messages, remove it giaddr field and fill to respond to a user DHCP client DHCP ACK messages as option 3 option content; step S171, DHCP Server receives the DHCP Request messages, obtain its IP encapsulation the source IP address, and fill to respond to user DHCP client DHCP ACK 4 Gen text options as option3 content;

Step S 180, DHCP Server DHCP ACK packet response to the user;

Step S 190, ASR DHCP Relay Agent receives the DHCP ACK message to the user and forwards the DHCP client;

Step S200, the DHCP client according to the user DHCP ACK packet configuration user address, the gateway address.

Above, step S170, the step S171 correspond to the above two methods, and a second election two steps, i.e., two methods can choose one.

Specifically, particular embodiments of the present embodiment mainly includes the following two parts: A, setting the user address (identity), and gateway address assigned distribution architecture;

B, enhanced DHCP protocol component, to support different gateway address is automatically assigned corresponding thereto according to a user access position. Inheritance and considering the compatibility with the existing standard protocol DHCP, the DHCP server function by automatically increasing the gateway address assignment mode, or other similar configuration to achieve the switching function. For example, when a user to configure the switch supports the feature; is not configured, the process according to the prior mechanism.

To make the objectives, technical solutions, and advantages of the present invention will become apparent, the embodiments Hereinafter the present invention will be described in detail in conjunction with the accompanying drawings. Incidentally, in the case of no conflict, embodiments and features of the embodiments of the present application may be arbitrarily combined with each other.

Example a

In this embodiment, in order identifier and location identifier separation network, the user moves two ASR obtain access gateway address and identity by way of example, will be described.

5, assume that the user equipment UE MAC address: 00-21-86-f -2c-cc; the identity and location identifier separation network user address pool: [192.168.1.6 ~ 192.168.1.255]; users to be dispensed AID is 192.168.1.8; ASR1 gateway address is 192.168.1.1; ASR2 gateway address is 192.168.1.2. While 4 Jia set, DHCP Server address 172.20.1.1, DHCP Server with ASR reachable.

Configuring the user addresses on the DHCP Server [192.168.1.6 ~ 192.168.1.255], and configure the MAC address assigned address binding relationship: 00-21-86-f -2c-cc-- 192.168.1.8, the user starts connection in position corresponding gateway address automatically assigned functions.

Started on ASR1 DHCP Relay Agent, configure the DHCP Relay Agent IP is 192.168.1.1, configure the DHCP Server address 172.20.1.1; start DHCP Relay Agent feature on ASR2, configure the DHCP Relay Agent IP is 192.168.1.2, configure the DHCP Server address 172.20.1.1.

User access to the identity and location identifier separation ASR1 network, obtain AID (IP) by DHCP: 192.168.1.8, gateway address: 192.168.1.1; when the user moves to a handover or nomadic access ASR2 obtain AID (IP) via DHCP : 192.168.1.8, the gateway address: 192.168.1.2. Two different positions of the user access network identity and location identifier separation, obtaining identity obtained

The same IP, is 192.168.1.8, assigned to the gateway address are 192.168.1.1 and 192.168.1.2, and with ASR1 corresponding ASR2.

Second Embodiment

In this embodiment, an example in LISP network, the gateway address allocation process of the present invention will be described. 6, in the deployed DHCP Relay ITR, LISP IP backbone network deployment centralized DHCP Server, Similarly, assume that the user equipment UE MAC address: 00-21-86-f -2c-cc; LISP network user address pool It is: [6 ~ 192.168 192.168 Shang Shang 255]; for the user to be assigned EID 192.168.1.8; ITR1 gateway address is 192.168.1.1; ITR2 gateway address is 192.168.1.2. It is also assumed, DHCP Server address 172.20.1.1, DHCP Server with ITR reachable.

Configuring the user addresses on the DHCP Server [192.168.1.6 ~ 192.168.1.255], and configure the MAC address assigned address binding relationship: 00-21-86-f -2c-cc-- 192.168.1.8, the user starts connection in position corresponding gateway address automatically assigned functions.

Start DHCP Relay Agent feature on ITR1, configure the DHCP Relay Agent IP is

192.168.1.1, configure the DHCP Server address 172.20.1.1; start DHCP Relay Agent feature on ITR2, configure the DHCP Relay Agent IP is 192.168.1.2, configure the DHCP Server address 172.20.1.1.

In ITR1 LISP user access network, the DHCP acquired EID (endpoint identifier, such as IP): 192.168.1.8, gateway address: 192.168.1.1; when the user moves to a handover or nomadic access ITR2 obtain EID (the IP) via DHCP : 192.168.1.8, the gateway address: 192.168.1.2.

Two different positions of the user access network LISP, acquiring the terminal identification to obtain the same IP as 192.168.1.8, assigned to the gateway address 192.168.1.1 and 192.168.1.2 are, respectively ITR1 and ITR2 correspond.

Further, the present invention provides a further embodiment addressing system applied identifier and location identifier separation network which includes a DHCP server or an edge router and an access router DHCP Relay module, wherein: said DHCP relay means for, when access to the user identifier and location identifier separation network request packet to the DHCP server, DHCP relay user, user address allocation request; wherein the DHCP request message carries the user medium access Control (MAC) address;

The DHCP server for the MAC address Bian manner bound identity of the user identity is assigned a unique network-wide identity for the user.

Preferably, the gateway automatically assigned address pattern arranged on the server DHCP, for initiating the access to the user are automatically assigned to the user access router or edge router gateway address corresponding to the function.

Preferably, the DHCP Relay module is configured, after initiating upon receiving the user to access the network DHCP request packet, the unicast to the DHCP server, a request to the DHCP server gateway address assignment;

The DHCP server is used, according to the unicast DHCP request message DHCP Relay Agent IP address and gateway address assigned to the user.

Preferably, the DHCP Relay module for receiving a user's broadcast the DHCP request packet, which is DHCP Relay Agent IP address contained in the DHCP request message giaddr field, the relay transmits to the DHCP server, ;

The DHCP server is configured to, when receiving the DHCP request packet, obtaining the value of the giaddr field, option 3 option and package the user to respond to the DHCP ACK message, as the user assigned to the gateway address.

Preferably, the means for DHCP Relay, the user receives the broadcast DHCP request packet, the unicast packet encapsulated relaying the DHCP server to send the DHCP request, the DHCP request packets encapsulated the encapsulated IP source address for DHCP Relay Agent IP address;

The DHCP server is configured to, when receiving the DHCP request packet, the source address of the encapsulated IP obtain DHCP request message, and package the user to respond to the DHCP ACK message option 3 option , assigned to the user as the gateway address.

Preferably, the single user address pool configured on the DHCP server, and when a user is added to the network, the DHCP server is configured on the user and stores the binding relationship between the MAC address of its identity. Above description is only the preferred embodiments of the present invention, but not intended to limit the present invention, the present invention can have a variety of other embodiments, without departing from the spirit and essence of the present invention, those skilled in the art according to the present invention make various corresponding modifications and variations, these corresponding modifications and variations shall fall within the scope of the appended claims.

Obviously, those skilled in the art will appreciate that the present invention each module or each step may be a general-purpose computing device, they can be integrated in a single computing device or distributed in a network composed of multiple computing devices on, alternatively, they may be implemented by program codes executable by a computing device, so that, to be performed by a computing device stored in a storage means, and in some cases, may be different from the order here performing the steps shown or described, or they are made into integrated circuit modules, or by making them of a plurality of modules or steps in a single integrated circuit module. Thus, the present invention is not limited to any particular hardware and software combination.

Industrial Applicability preclude the use of the gateway address and the address allocation of the above identifier and location identifier separation network, the address can be implemented separate identity and location identifier of the network is assigned a unique, and may implement other ASR user moves from a different ASR to access or , the corresponding ASR gateway address automatically assigned to access it. Since the gateway address is automatically adapt and distribution system is simplified DHCP configuration; the same time, since there is no modify DHCP client interface protocols, so that the user can maintain compatibility with existing equipment is implemented, no impact to the user equipment.

Claims

1, an identity identifier assignment method, comprising:
Deployment relay (Relay) component Dynamic Host Configuration Protocol (DHCP) in the identifier and location identifier separation network edge router or the access router;
To access the user identifier and location identifier is separated from the network, it initiates a DHCP request packet, the DHCP request message carries the user's media access control (MAC) address;
The user access edge router or an access router DHCP Relay component separated by deployed to identify the identity and location of the DHCP server relay DHCP request user only Gen network, requesting user address allocation;
The DHCP server preclude manner MAC address bound with the user identity identification, the whole network assigned a unique identity for the user.
2. The method as claimed in claim 1, wherein,
When a user is added to the identifier and location identifier separation network, and saves the user configuration binding between the MAC address and the identity of the DHCP server.
3. The method as claimed in claim 1, wherein the binding relationship between the MAC address and the identity of one to one correspondence relationship.
4. A gateway address allocation method, wherein
Deployment relay (Relay) component Dynamic Host Configuration Protocol (DHCP) in the identifier and location identifier separation network edge router or the access router;
To access the user identifier and location identifier is separated from the network, it initiates a DHCP request packet, the DHCP request message carries the user's media access control (MAC) address;
The user access to an access router DHCP server or an edge router isolated network DHCP relay user request "¾, requesting the user gateway address assigned by DHCP Relay assembly deployed to the identifier and location identifier;
The DHCP server automatically assigns the user with the user access router or an access gateway corresponding to the edge router address.
After 5, The method as claimed in claim 4, wherein the user access to the access router or edge router receives initiated when the user accesses the network DHCP request message to the DHCP relay server, a request to the DHCP server gateway address assignment;
The DHCP server according to the DHCP request unicast packets DHCP Relay Agent IP address and gateway address assigned to the user.
6. The method as claimed in claim 4 or 5, wherein,
Unified user configuration server address pool on the DHCP, and configure the binding between the MAC address and the identity of their users.
7. The method as claimed in claim 5, wherein,
The access router or edge router receives the user broadcast DHCP request packet, which is DHCP Relay Agent IP address contained in the DHCP request message giaddr field, the relay transmits to the DHCP server;
The DHCP server receives the DHCP request packet, obtaining the value of the giaddr field, and package the user to respond to the DHCP acknowledgment (ACK) message option 3 option, as allocated to the user gateway address.
8. A method as claimed in claim 5, wherein,
When the edge router or the access router receives the broadcast DHCP request to the user packet, the unicast packet encapsulation relay the DHCP request sent to the DHCP server, wherein the DHCP request packets encapsulated IP encapsulation the DHCP ACK DHCP server receives the DHCP request message Gen obtain the IP source address of the encapsulated packet to the DHCP request, and package to respond to the user; source address for DHCP Relay Agent IP address message option 3 option, a user assigned to the gateway address.
9. A dispensing system address applied identifier and location identifier separation network, said system comprising a DHCP server or an edge router and an access router DHCP Relay module, wherein:
The DHCP Relay module is configured to: when the user accesses the identifier and location identifier separation network request packet to the DHCP server, DHCP relay user, user address allocation request; wherein the DHCP request packet the user media access control (MAC) address; the DHCP server is set to: mode using the MAC address preclude binding of the user identity identification, the whole network assigned a unique identity for the user.
10. The system as claimed in claim 9, wherein,
The DHCP server is configured to: automatically configured with the gateway address assignment mode, the user starts with the user are automatically assigned the access router or edge router of the access gateway corresponding to the address power
• 6 dagger
dagger.
11. The system of claim 9 or claim 10, wherein,
The DHCP Relay module is configured to: after initiated upon receiving the user to access the network DHCP request packet, the unicast to the DHCP server, a request to the DHCP server gateway address assignment;
The DHCP server is configured to: according to the unicast DHCP request message DHCP Relay Agent IP address and gateway address assigned to the user.
12. The system as claimed in claim 11, wherein,
The DHCP Relay module is configured to: upon receiving a user's broadcast the DHCP request packet, which is DHCP Relay Agent IP address contained in the DHCP request message giaddr field, the relay transmits to the DHCP server;
The DHCP server is configured to: when receiving the DHCP request packet, obtaining the value of the giaddr field, and packaged to respond to the user of the DHCP ACK message option 3 option, a user assigned to the gateway address .
13. The system as claimed in claim 11, wherein,
The DHCP Relay module is configured to: upon receiving a user's broadcast the DHCP request packet, the DHCP request packet encapsulated unicast transmission to relay the DHCP server, DHCP request packets encapsulated IP encapsulation wherein source address is DHCP Relay Agent IP address; the DHCP server is configured to: when receiving the DHCP request packet, obtain the IP source address of the encapsulated Gen 4 DHCP request packets and packed into the DHCP response to the user ACK message option 3 option, a user assigned to the gateway address.
14. The system as claimed in claim 9 or 10, wherein,
The DHCP server is configured to: configure a unified user address pool, and when the user is added to the network, configuration of the user and stores the binding relationship between the MAC address of its identity on the DHCP server.
15 A DHCP relay (Relay) module, used identifier and location identifier separation network, wherein, the DHCP Relay module is configured to:
The access router or edge router, when the user accesses the identifier and location identifier separation network, the DHCP request message to the DHCP server relay the user, user address allocation request; wherein the DHCP request message carries the user media access control (MAC) address;
The user identification, by the DHCP server with the MAC address mode preclude binding of the user identity identification is allocated to the user, and the entire network.
16, DHCP Relay module as claimed in claim 15, wherein,
The DHCP Relay module is configured to: after initiated upon receiving the user to access the network DHCP request packet, the unicast to the DHCP server, a request to the DHCP server gateway address assignment;
Wherein, by the DHCP server according to the request packet of the unicast DHCP message of DHCP Relay Agent IP address and gateway address assigned to the user.
17, DHCP Relay module as claimed in claim 16, wherein,
The DHCP Relay module is configured to: upon receiving a user's broadcast the DHCP request packet, which is DHCP Relay Agent IP address contained in the DHCP request message giaddr field, the relay transmits to the DHCP server;
The DHCP ACK message option 3 option which is received by the DHCP server when the DHCP request packet, obtaining the value of the giaddr field, and to package in response to the user as a gateway address assigned to the user .
18, DHCP Relay module as claimed in claim 16, wherein,
The DHCP Relay module is configured to: upon receiving a user's broadcast the DHCP request packet, the DHCP request packet encapsulated unicast transmission to relay the DHCP server, DHCP request packets encapsulated IP encapsulation wherein source address is DHCP Relay Agent IP address; wherein, by the DHCP server when receiving the DHCP request packet, the DHCP request acquiring package 4 IP address of the source text Burgundy, and packaged to respond to the user the DHCP ACK message option 3 option, a user assigned to the gateway address.
PCT/CN2012/076698 2011-08-19 2012-06-11 Method and system for allocating identifier and gateway address WO2013026306A1 (en)

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