WO2007143950A1

WO2007143950A1 - An apparatus and method for implementing the boot-strap of the dual-stack node in the heterogeneous network

Info

Publication number: WO2007143950A1
Application number: PCT/CN2007/070086
Authority: WO
Inventors: Hongguang Guan
Original assignee: Huawei Technologies Co., Ltd.
Priority date: 2006-06-09
Filing date: 2007-06-06
Publication date: 2007-12-21
Also published as: CN101087242A; CN101087242B

Abstract

An apparatus and method for implementing the boot-strap of the dual-stack node in the heterogeneous network. The apparatus mainly includes a HORS (handoff resource server). The method mainly includes: the MN (mobile node) retrieves the gateway information of the FHA (foreign home agent) dual-stack mobile access service provided by the DSHORS (dual-stack handoff resource server) through the NAS (network access server), and retrieves the THOA (temporary home agent address) information from the FHA. Using this invention, the boot-strap of the dual-stack mobile node in the IPv6 and IPv4 network can be implemented.

Description

Apparatus and method for implementing bootstrap of a dual stack node in a heterogeneous network

[1] Technical field

[2] The present invention relates to the field of network communications, and in particular, to an apparatus and method for implementing bootstrap dual-stack nodes in a heterogeneous network.

[3] Background of the invention

[4] At present, there is already an implementation scheme of how MIPv6 performs bootstrapping in the field of wireless communication. According to MSP (Mobi le service provider) and ASP (Access service)

The different relationships between the provider and the access service provider, and the different relationships between the service provider and the authorized certifier. The application scenarios of the implementation include two categories: BP: Integrated ASP network scenario (integrated ASP network) Scene) and Third party MSP

Scenario (third-party MSP network scenario).

[5] Integrated ASP network scenario

The scenario is for the case where MSP and ASP are integrated to provide network services. In the solution corresponding to this scenario, the mobile node can obtain HA (Home access only) with NAI (Network access identifier) and pre-shared key.

Address, home agent) Address, home address and certificate.

[6] in Integrated ASP network

In the scenario, how to perform the HA address bootstrapping process is shown in Figure 1, including the following steps.

[7] 1

The NAS in the ASP analyzes the NAI of the NAS, requests the authentication from the MAH (home AAA server), and the MAH gives the address or domain name of the HA, and returns the authentication result to the NAS.

[8] 2, Li performs DHCP (Dynamic Host Configuration

Protocol, Dynamic Host Configuration Protocol) procedure, to DHCP multicast

Address sends an Information Request message carrying the NAI of the MN.

[9] 3, NAS as DHCP Relay (transfer), forward the above Information Request message to the DHCP server, meanwhile, in the Forwarded Information

The request message carries the HA information obtained from the MAH.

[10] 4, the DHCP server receives the above information

After the Request message, the NAS returns a response message carrying the HA information, and the HA information may be the above AAA.

The HA information obtained in H can also be the local home agent configured by ASP.

[11] 5, DHCP

The relay forwards the received response message to MN, so that MN gets the address information of the HA.

[12] In the above DHCP process, Li can get the address provided by ASP and the address information of HA. Subsequently, Li takes the process of H0A (home address) and security alliance and Third party MSP.

The H0A and the security association IKEv2 SA process are the same in the scenario.

[13] Third party MSP scenario

The scenario is for ASP and MSP to provide network services independently. In the solution corresponding to this scenario, Li needs to pre-configure the domain name of HA through DNS (Domain Name

Server, domain name server) find the address of HA, then pass IKE (Internet Key

Exchange, Key Exchange) protocol, obtaining H0A from HA. The program does not provide a way to configure the domain name of HA.

[14] In the process of implementing the present invention, the inventors have found that the above prior art solution can only solve the problem of how pure MIPv6 bootstrap, and does not solve the problem that when the ΜΙΡν6 node bootstraps in the ΜΙΡν4 type of foreign network, How to get the problem of H0A, HAA (address of home agent) and authentication information. The problem of how to obtain the necessary parameters such as the FHA gateway address and the temporary home address when the MIPv6 traverses the IPV4 network is not solved. How to obtain the gateway address of the MIPV6 traversing the IPv4 network when the MIPV6 node bootstraps in the IPV6 field network. I even got the problem of the temporary home address assigned to this gateway.

[15] Summary of the invention

[16] An object of an embodiment of the present invention is to provide an apparatus and method for implementing dual-stack nodes bootstrap in a heterogeneous network

Thus, the dual-stack mobile node can be booted in the IPV6 network and the IPV4 network.

[17] The purpose of the embodiment of the present invention is achieved by the following technical solutions:

[18] A device for implementing bootstrap of a dual-stack node in a heterogeneous network, comprising:

[19] Switching resource server H0RS, used for switching management of dual-stack mobile nodes, providing dual-stack mobile nodes Signing information authentication for switching between networks.

[20] A method for implementing dual-stack node bootstrapping in a heterogeneous network, setting a dual-stack switching resource server DSHORS

The DSHORS manages subscription information of the dual-stack mobile node, where the method includes:

[21] Li

Obtain the gateway information of the FHA dual-stack mobile access service provided by DSHORS, and obtain the T H0A information assigned to it by the FHA.

[22] It can be seen from the technical solutions provided by the foregoing embodiments of the present invention that the embodiment of the present invention sets DSHORS

(Double stack switching resource server) Logical network element, so that the dual stack mobile node can boot the IPV6 network and the I PV4 network. The MIPv6 dual-stack mobile node can obtain the address and authentication information of the H0A and HA when booting on the foreign link in the IPV6 network or in the M IPv4 type foreign network, and the MIPv6 dual-stack mobile node traverses the IPV4 network. Required parameters such as FHA gateway address, THOA (temporary home address). The embodiments of the present invention can facilitate network operators to conduct and maintain services.

[23] BRIEF DESCRIPTION OF THE DRAWINGS

[24] Figure 1 shows the Integrated ASP network

In the scenario, how does Li perform the process flow of HA address bootstrapping;

2 is a schematic diagram of setting an FHA in an interface between an IPv4 network and an IPv6 network according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of deployment of a DSHORS in a network according to an embodiment of the present invention; FIG.

[27] FIG. 4 is a schematic diagram of a principle of a bootstrap mobile node performing bootstrapping in the scenario 1 of the embodiment of the present invention;

[28] FIG. 5 is a schematic diagram of a specific processing flow of a FHA address and a TH0A in a MIPv4 network in the scenario 2 of the embodiment of the present invention;

6 is a schematic diagram of a specific processing flow of a FHA address and a TH0A in a MIPv4 network in the scenario 2 of the embodiment of the present invention;

FIG. 7 is a schematic diagram of a specific processing flow of a FHA address and a TH0A in a MIPv4 network in the scenario 2 of the embodiment of the present invention.

[31] Mode for carrying out the invention

[32] An embodiment of the present invention provides an apparatus and method for implementing bootstrap of a dual-stack node in a heterogeneous network. In the embodiment, DSHORS (Dual Stack Switching Resource Server) is set in the network, and the FHA provided by DSH0RS through the NAS (Foreign Home)

Agent, the foreign home agent) The gateway information of the dual stack mobile access service, and the TH0A information is obtained from the FHA.

[33] For a better description of the embodiments of the present invention, we will first introduce FHA. FHA can manage dual-stack mobile nodes. FHA can be set in the boundary between IPv4 network and IPv6 network, as shown in Figure 2. FHA can also be set up in a hybrid network running both IPv4 and IPv6 networks. The main process for managing dual-stack mobile nodes using FHA is as follows:

[34] FHA

As a home network, MIPv6 is a foreign agent in the MIPv4 network. FHA supports both MIP4 and

MIP6 protocol. When moving from the IPv6 network to the IPv4 network, the MN obtains a temporary IPv4 address from the FHA and obtains the C0A address of the IPv6 corresponding to the TH0A. At the same time, the FHA's IPv4 address and the temporary home address TH0A are obtained.

[35] When Li moved to the FA in the IPv4 network (Foreign

Agent, field agent), will get an IPv4 COA (Care of

Address, care-of address) address. Li uses MIP6 protocol with CN (Core

Network, communication node) and HA communication, C0A used for communication is the C0A address of IPv6 obtained from FHA.

[36] Li

IPv6 packets communicating with CN and HA are carried in the MIP4 protocol on the IPv4 network. When the home agent communicates using the MIP 4 protocol, its H0A is TH0A, the COA is the IPv4 COA address obtained from the FA, and the H0A is the FHA I Pv4 address.

[37] The apparatus for implementing bootstrap of a dual-stack node in a heterogeneous network according to an embodiment of the present invention is a H0RS (Switching Resource Server). H0RS can exist independently, and AAA (Authentication Authorization

MA between Accounting, authentication, authorization, and accounting)

Protocol (MA protocol) for communication, H0RS can also be integrated in the AAA server.

[38] H0RS

Including DSHORS, DSHORS can provide for the movement of dual-stack mobile nodes between MIPv6 and MIPv4 networks. Change service, manage the subscription information of the dual-stack mobile node, and provide authentication information, FHA address, target network subnet prefix, temporary home address and HAA for the switch between MIPv6 and MIPv4. The schematic diagram of DSH0RS deployment in the network is shown in Figure 3. HOME in Figure 3

DOMAIN represents the home domain, VISIT DOMAIN represents the visited domain, and DS-SP represents the dual stack service provider.

[39] The following describes a method for implementing a dual stack node bootstrap in a heterogeneous network according to an embodiment of the present invention. The method in the embodiment of the present invention is applicable to two scenarios, SP: scenario 1 is: a dual-stack node bootstraps on a foreign link in an IPV6 network; scenario 2 is: a dual-stack node in a foreign link in an IPV4 network Booting on. The home network of the dual-stack node in scenario 1 and scenario 2 above is an IPV6 network.

[40] The specific processing flow of the method in the embodiment of the present invention in the above two application scenarios is respectively described below.

[41] The schematic diagram of the dual-stack mobile node booting in the above scenario 1 is shown in Fig. 4. In the above scenario 1, the home network of the dual-stack mobile node is an MIPv6 network. The dual-stack mobile node performs bootstrapping on the foreign link of the type MIPv6 network. In addition to the parameters that the MIPV6 starts, the dual-stack mobile node also obtains the address and related security parameters of the FHA accessing the network access MIPV4 type network. .

[42] In the above scenario 1, the specific processing process of obtaining the HA information and the gateway information of the FHA dual-stack mobile access service includes the following steps:

[43] 401. The NAS in ASP parses the NAI of Li, and requests the authentication from MAH.

[44] 402

The MAH requests the DSH0RS of the management domain to provide the gateway address or domain name information of the FHA dual-stack mobile access service for the current ASP, and the MAH gives the HA address or domain name. Then, the MA H returns the authentication result of the gateway address or the domain name information, the HA address, or the domain name information of the FHA dual-stack mobile access service to the NAS.

[45] 403, Li performs DHCP process, to DHCP multicast

The address sends an Information Request message carrying the NAI of the MN.

[46] 404, NAS as DHCP Relay, forward the above Information

Request message to the DHCP server, at the same time, the information forwarded

The Request message carries the HA information obtained from the MAH and the gateway information of the FHA dual-stack mobile access service.

[47] 405. After receiving the above Information Request message, the DHCP server sends a DHCP message to the DHCP server. The relay returns the gateway information carrying the FHA dual-stack mobile access service and the response message of the HA information, and the HA information may be the HA information obtained from the MAH or the local home agent configured by the ASP.

[48] 406, DHCP

The relay forwards the received response message to MN, so that MN obtains the address information of the HA and the gateway information of the FHA dual-stack mobile access service.

[49] 407

MN obtains TH0A from FHA through the IKE-AUTH (Internet Key Exchange Protocol - Authentication Part) procedure of IKEv2 (Internet Key Exchange Protocol Version 2).

[50] 408, Li registered the process with FHA.

[51] In the foregoing scenario 1, the specific processing process of obtaining the HA information and the gateway information of the FHA dual-stack mobile access service may further include the following steps:

[52] 501. The NAS in ASP parses the NAI of Li, and requests the authentication from MAH.

[53] 502

The MAH requests the DSHORS of the administrative domain to provide the gateway address or domain name of the FHA dual-stack mobile access service for the current ASP.

[54] 503

DSHORS provides the MAH with the gateway address or domain name of the FHA dual-stack mobile access service. DSHORS requests the allocation of TH0A from FHA, and FHA returns the assigned TH0A to DSHORS.

[55] 504

DSHORS returns the authentication result, the address or domain name of the HA, the address or domain name information of the FHA dual-stack mobile access service, and the TH0A returned by the FHA to the NAS.

[56] 505

The NAS returns the address of the HA returned by DSHORS, the address of the FHA, and TH0A, and returns the authentication result to Li.

[57] 506, Li performs DHCP process, to DHCP multicast

The address sends an Information Request message carrying the NAI of the MN.

[58] 507, NAS as DHCP Relay, forward the above Information

Request message to the DHCP server, at the same time, the information forwarded

The request message carries the above-mentioned HA information derived from DSHORS and the FHA dual-stack mobile access service network. Off information.

[59] 508. After receiving the above Information Request message, the DHCP server sends DHCP to the DHCP server.

The relay returns a response message carrying the local address assigned by the ASP to the MN, the gateway information of the FHA dual-stack mobile access service, and the HA information.

[60] 509, DHCP

The relay forwards the received response message to MN, so that the RADIUS obtains the local address assigned by the ASP, the address of the HA, and the gateway information of the FHA dual-stack mobile access service.

[61] 510, Li registered the process with FHA.

[62] In the foregoing scenario 1, the specific processing process of obtaining the HA information and the gateway information of the FHA dual-stack mobile access service may further include the following steps:

[63] 601. The NAS in ASP parses the NAI of Li, and requests the authentication from MAH.

[64] 602

The MAH requests the DSH0RS of the management domain to provide the gateway address or domain name of the FHA dual-stack mobile access service for the current ASP. At the same time, the MAH returns the given HA address or domain name, the gateway address or domain name of the FHA dual-stack mobile access service, and the authentication result to the NAS.

[65] 603, Li performs DHCP process, to DHCP multicast

The address sends an Information Request message carrying the NAI of the MN.

[66] 604, NAS as DHCP Relay, forward the above Information

Request message to the DHCP server, at the same time, the information forwarded

[67] DHCP

The server obtains the TH0A address that the MN needs to obtain according to the FHA information, and the DHCP server allocates the address from the associated configured address pool.

[68] 605

This step is another optional operation of step 604. The NAS obtains the FHA information according to the authentication message, and forwards the FHA as the next DHCP server, and the FHA to the DHCP server (this DHCP server may not be the same as the previous DHCP server) Request TH0A address assignment. [69] 606. After receiving the information Request message, the DHCP server returns, to the DHCP relay, a response that carries the local address assigned by the ASP to the MN, the gateway information of the FHA dual-stack mobile access service, the HA information, and the allocated TH0A address information. Message.

[70] 607, DHCP

The relay forwards the received response message to MN, so that MN obtains the local address assigned by the ASP, the address of the HA, and the gateway information of the FHA dual-stack mobile access service, and the TH0A information.

[71] The above process requires an extended option to carry the FHA address or domain name in the implementation. The option can be extended in MA or DHCP. The embodiment of the present invention does not limit the name and form of the option, but the option should be able to carry the address or domain name information of the FHA, and give an identification method that distinguishes whether the content of the option is an address or a domain name.

[72] In scenario 2 above, the home network is a dual-stack mobile node of the MIPv6 network that bootstraps on a foreign link of the type MIPv4 network. A specific processing flow for obtaining the FHA address and the TH0A in the MIPv4 network is as shown in FIG. 5, and includes the following steps:

[73] 701

The NAS in the ASP parses the NAI of the MN, and authenticates the MN; according to the MN's NAI, the AAA's home domain is determined, and the A SP decides to request the DSHORS for authentication and switch resource information, such as the FHA address and domain name.

[74] 702

DSHORS provides the gateway address or domain name of the FHA dual-stack mobile access service. At the same time, DSHORS gives the address or domain name of the HA, and returns the given authentication result and the gateway address or domain name information of the FHA dual-stack mobile access service to the NAS.

[75] 703, NAS returns the HAA, FHA address and authentication result given by DSHORS to Li.

[76] 704, Li performs DHCP process, to DHCP multicast

The address sends an Information Request message carrying the NAI of the MN.

[77] 705, NAS as DHCP Relay, forward the above Information

Request message to the DHCP server, at the same time, the information forwarded

The Request message carries the above-mentioned HA information from the DSHORS and the gateway information of the FHA dual-stack mobile access service.

[78] 706. After receiving the above Information Request message, the DHCP server sends a DHCP message to the DHCP server. The relay returns a response message carrying the local address assigned by the ASP to the MN, the gateway information of the FHA dual-stack mobile access service, and the HA information.

[79] 707, DHCP

The relay forwards the received response message to MN, so that MN obtains the local address assigned by the ASP, the address of the HA, and the gateway information of the FHA dual-stack mobile access service.

[80] 708, Li obtained TH0A from FHA through IKEv2's IKE-AUTH process.

[81] 709, Li registered the registration process.

[82] In the above scenario 2, another specific processing procedure for obtaining the FHA address and the TH0A in the MIPv4 network is as shown in FIG. 6, and includes the following steps:

[83] 801

The NAS in the ASP parses the NAI of the MN, and authenticates the MN; according to the MN's NAI, the AAA's home domain is requested, and the A SP decides to request the DSH0RS for authentication and switch resource information, such as the FHA address and domain name.

[84] 802

DSH0RS provides the gateway address or domain name of the FHA dual-stack mobile access service to the NAS. DSH0RS requests the allocation of TH0A to FHA, and FHA returns the assigned TH0A to DSH0RS.

[85] 803

The DSH0RS returns the given authentication result, the address or domain name of the HA, and the gateway address or domain name information of the TH0A and FHA dual-stack mobile access service returned by the FHA to the NAS.

[86] 804. The NAS returns the address of the HA, the address of the FHA, the TH0A and the authentication result given by the DSH0RS to the MN.

[87] 805, Li performs DHCP process, to DHCP multicast

The address sends an Information Request message carrying the NAI of the MN.

[88] 806, NAS as DHCP Relay, forward the above Information

Request message to the DHCP server, at the same time, the information forwarded

The Request message carries the HA information obtained from the DSH0RS and the gateway information of the FHA dual-stack mobile access service.

[89] 807. After receiving the above Information Request message, the DHCP server sends DHCP to the DHCP server.

The relay returns a response message carrying the local address assigned by the ASP to the MN, the gateway information of the FHA dual-stack mobile access service, and the HA information. [90] 808, DHCP

[91] In the above scenario 2, another specific processing procedure for obtaining the FHA address and the TH0A in the MIPv4 network is as shown in FIG. 7, and includes the following steps:

[92] 901

[93] 902

DSH0RS provides the gateway address or domain name of the FHA dual-stack mobile access service to the NAS. DSH0RS returns the given authentication result, HA address or domain name to the NAS.

[94] 903. The NAS returns the address of the HA, the address of the FHA, and the authentication result given by the DSH0RS to the MN.

[95] 904, Li performs DHCP process, to DHCP multicast

The address sends an Information Request message carrying the NAI of the MN.

[96] 905, NAS as DHCP Relay, forward the above Information

Request message to the DHCP server, at the same time, the information forwarded

[97] DHCP

The server obtains the TH0A address required by MN according to the FHA information, and the DHCP server allocates the address from the address pool of the related configuration.

[98] 906

This step is another optional operation of step 905. The NAS obtains the FHA information according to the authentication message, and forwards the FHA as the next DHCP relay, from the FHA to the DHCP server (this DHCP

The server may not be the same as the previous DHCP server) requesting TH0A address allocation.

[99] 907. After receiving the above Information Request message, the DHCP server sends DHCP to the DHCP server.

The relay returns a response message carrying the local address assigned by the ASP to the MN, the gateway information of the FHA dual-stack mobile access service, the HA information, and the allocated TH0A address information. [100] 908, DHCP

The relay forwards the received response message to MN, so that MN obtains the local address assigned by the ASP, the address of the HA, the gateway of the FHA dual-stack mobile access service, and the TH0A information.

[101] In summary, it can be seen that the foregoing technical solution provided by the embodiment of the present invention can be implemented by setting a DSH0RS (Dual Stack Switching Resource Server) logical network element, so that a dual-stack mobile node can be implemented in the I PV6. Bootstrap in the network and IPV4 networks. The MIPv6 dual-stack mobile node can obtain the address and authentication information of the H0A and the HA when booting on the foreign link in the IPV6 network or in the MIPv4 type foreign network, and the FHA when the MIPv6 dual-stack mobile node traverses the IPV4 network. Required parameters such as gateway address and TH0A. The embodiments of the present invention can facilitate network operators to conduct and maintain services.

The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of within the technical scope disclosed by the present invention. Changes or substitutions are intended to be included within the scope of the invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

Claim

[1] 1. A device for implementing bootstrapping of a dual-stack node in a heterogeneous network, comprising: a handover resource server H0RS, configured to perform handover management on a dual-stack mobile node, and provide a dual-stack mobile node in a network. Signing information authentication for switching between.

[2] The device for booting a dual-stack node in a heterogeneous network according to claim 1, wherein the H0RS specifically includes:

Dual Stack Switching Resource Server DSHORS, used for dual stack mobile nodes in Internet Protocol version 6MIPv

Mobile switching between 6 and Internet Protocol version 4MIPv4 networks provides switching services, manages subscription information of dual-stack mobile nodes, and provides a gateway for foreign home agent FHA dual-stack mobile access services for mobile node switching between MIPv6 and MIPv4 networks. information.

[3] 3. The device for implementing bootstrapping of a dual-stack node in a heterogeneous network according to claim 2, wherein the H0RS exists independently or integrated in an authentication, authorization, and accounting AAA server.

[4] 4, a method for implementing a dual-stack node bootstrap in a heterogeneous network, characterized in that: a double-stack switching resource server DSHORS is set, and the DSHORS manages subscription information of a dual-stack mobile node, the method includes:

Li

Obtain the gateway information of the FHA dual-stack mobile access service provided by DSHORS, and obtain the TH0A information assigned by FHA.

[5] 5. The method for implementing bootstrapping of a dual-stack node in a heterogeneous network according to claim 4, wherein when the home network is a dual-stack mobile node of the MIPv6 network on a foreign link in the MIPv6 network When booting, the method includes:

The NAS in the access service provider ASP resolves the network access identifier NAI, requests authentication from the home AAA server MAH, and the MAH requests the DSHORS in the local domain to obtain the FHA dual-stack mobile connection for the current A SP. Address or domain name information of the service;

AAAH

Sending the address or domain name information and the authentication result of the FHA dual-stack mobile access service provided by the DSHORS to the NAS; performing a dynamic host configuration protocol DHCP process, and transmitting an information request message carrying the NAI to the DHCP multicast address; NAS

Forwarding the information request message to the DHCP server, and carrying the address or domain name information of the FHA dual-stack mobile access service obtained from the MAH in the forwarded information request message; the DHCP server returns to the NAS to carry the FHA The address of the dual-stack mobile access service or the response message of the domain name information, and the NAS returns the response message to the MN;

The MN obtains the TH0A from the FHA through a key exchange protocol.

[6] 6. The method for implementing bootstrapping of a dual-stack node in a heterogeneous network according to claim 4, wherein when the home network is a dual-stack mobile node of the MIPv6 network on a foreign link in the MIPv6 network When booting, the method includes:

ASP

The NAS resolves the NAI of the NAS, requests authentication from the MAH of the MN, and the MAH requests the DSH0RS of the admin domain to obtain the address or domain name information of the FHA dual-stack mobile access service for the ASP where the MN is currently located;

DSH0RS

The FHA is requested to allocate the TH0A, and the FHA returns the allocated TH0A to the DSHORS. The DSH0RS returns the authentication result, the address of the FHA dual-stack mobile access service or the domain name information and the TH0A information to the NAS, and the NAS returns the THOA and the authentication result returned by the DSHORS. Give

Li

The DHCP process is performed, and the information request message carrying the NAI is sent to the DHCP multicast address; the NAS forwards the information request message to the DHCP server, and carries the FHA double received from the DSHORS in the forwarded information request message. Address or domain name information of the stack mobile access service; DHCP

The server returns a response message carrying the address or domain name information of the FHA dual-stack mobile access service to the NAS, and the NAS returns the response message to the MN.

[7] 7. The method for implementing bootstrapping of a dual-stack node in a heterogeneous network according to claim 4, wherein when the home is a dual-stack mobile node of the MIPv6 network, the foreign link in the MIPv6 network is self-existing. Whereas, the method comprises:

ASP The NAS analyzes the NAI of the NAS, requests the authentication from the MAH of the MN, and the MAH requests the DSHORS of the admin domain to obtain the address or domain name information of the FHA dual-stack mobile access service for the ASP where the MN is currently located; MAH will provide the FHA provided by the DSHORS. The address or domain name information of the dual-stack mobile access service is returned to the NAS;

Li

The DHCP process is performed, and the information request message carrying the NAI is sent to the DHCP multicast address; the NAS forwards the information request message to the DHCP server, and carries the FHA double obtained from the MAH in the forwarded information request message. The address or domain name information of the stack mobile access service;

DHCP

The server obtains the TH0A address of the MN according to the FHA information, and the DHCP server allocates the address from the related configured address pool; the DHCP server returns a response message carrying the address or domain name information of the FHA dual-stack mobile access service and the TH0A information to the NAS, and the NAS will The response message is returned to Li.

8. The method for implementing bootstrapping of a dual-stack node in a heterogeneous network according to claim 4, wherein when the home network is a dual-stack mobile node of the MIPv6 network bootstrapped on a foreign link in the MIPv4 network , the method includes:

ASP

The NAS in the analysis of the NAI, the certification of Li; according to the NAI of Li, the domain of Li, by AS

The P decision requests authentication and switching resource information from DSHORS;

DSHORS

The NAS provides the gateway address or domain name of the FHA dual-stack mobile access service, and the NAS returns the FHA address and the authentication result returned by the DSHORS to the MN; the MN performs a DHCP process, and sends an information request message carrying the NAI to the DHCP multicast address. ;

NAS

Forwarding the information request message to the DHCP server, and carrying the address or domain name information of the FHA dual-stack mobile access service obtained from the DSHORS in the forwarded information request message; the TH0A address obtained by the DHCP server according to the FHA information And assign an address from the associated configured address pool; DHCP

The server returns to the NAS the address or domain name information and the THO carrying the FHA dual-stack mobile access service. The response message of the A message, the NAS returns the response message to the MN.

[9] The method for implementing the bootstrapping of the dual-stack node in the heterogeneous network according to claim 7 or 8, wherein the NAS forwards the information request message to the DHCP server, and Including

NAS

According to the authentication message, the FHA information is obtained, and the FHA is forwarded as the next DHCP server, and the FHA requests the TH0A address allocation from the DHCP server.

[10] The method for implementing bootstrapping of a dual-stack node in a heterogeneous network according to claim 4, wherein when the home network is a dual-stack mobile node of the MIPv6 network on a foreign link in the MIPv4 network When booting, the method includes:

ASP

The P decision requests authentication and switching resource information from the DSH0RS;

DSH0RS

The gateway address or domain name and authentication result of the provided FHA dual-stack mobile access service are returned to the NAS; the NAS returns the address of the DSH0RS to the FHA and the authentication result is returned to the MN; the MN performs the DHCP process, and sends the MN to the D HCP multicast address. NAI information request message;

NAS

Forwarding the information request message to the DHCP server, and carrying the address or domain name information of the FHA dual-stack mobile access service obtained from the DSH0RS in the forwarded information request message; the DHCP server returns to the NAS to carry the FHA The address of the dual-stack mobile access service or the response message of the domain name information, and the NAS returns the response message to the MN;

The MN obtains the TH0A from the FHA through a key exchange protocol.

[11] 11. The method for implementing bootstrapping of a dual-stack node in a heterogeneous network according to claim 4, wherein when the home network is a dual-stack mobile node of the MIPv6 network on a foreign link in the MIPv4 network When booting, the method includes:

ASP

The NAS in the analysis of Li NAI, the certification of Li; according to Li NAI learned that Li's attribution domain, by AS P decision requests authentication and switching resource information to DSHORS;

DSHORS

Provide the NAS with the gateway address or domain name of the FHA dual-stack mobile access service. DSHORS requests the allocation of TH OA from FHA, and FHA returns the assigned TH0A to DSHORS; DSHORS returns the given authentication result, gateway address or domain name information of TH OA and FHA dual-stack mobile access service to NAS;

NAS will return the address of the FHA returned by DSHORS, TH0A and

The authentication result is returned to the MN; the MN performs a DHCP process, and sends an information request message carrying the NAI to the DHCP multicast address; the NAS forwards the information request message to the DHCP server, and carries the slave in the forwarded information request message. The address or domain name information of the FHA dual-stack mobile access service derived from DSHORS;

DHCP