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Client based mobile IPv4 configuration information obtaining method

A technology for configuring information and customers, applied in the field of mobile IP, it can solve problems such as the inability to carry out services, limit the scope of application of WiMAX networks, and continue to provide services for users, and achieve the effect of increasing the scope of application and reducing special requirements.

Inactive Publication Date: 2007-11-14
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] (1) In the current draft, only the HoA address is obtained in the CMI Pv4 connection establishment process, and it does not mention how to obtain relevant host configuration information, such as domain name server address (DNS), network time server address (NTP), Internet name server address (WINS) etc.
[0014] (2) When the network service provider agrees not to provide mobile IP services when signing a contract with the user's NSP, if the user uses a device that supports the MIP protocol stack, the method in the existing draft cannot continue to provide services for the user
[0015] (3) The acquisition method of the CMIPv4 HoA address in the existing draft depends on the authentication and authorization process (AAA will issue relevant information for MIP registration during the authentication and authorization process. Without these necessary relevant information, MIP registration cannot be initiated Therefore, there is no authentication and authorization process in the original process, and the IP address cannot be obtained), if there is no authentication and authorization process or the process fails (such as emergency services), the terminal MS cannot obtain the IP address, and subsequent services cannot be carried out
[0016] (4) The method in the existing draft puts forward special requirements for the terminal MS, requiring the terminal MS not to initiate the DHCP (Dynamic Host Configuration Protocol) process before initiating the MIP registration
This limits the scope of application of WiMAX networks, because most terminals that support MIP, such as PCs and PDAs with MIP protocol stacks, are not customized for WiMAX networks. If DHCP is initiated before MIP registration, the existing method will make it impossible for WiMAX networks to Provide MIP service to it

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] This embodiment supplements the DHCP (Dynamic Configuration Protocol) message flow on the original flow to obtain relevant host configuration information. FIG. 3 is a method for establishing a service connection process in the CMIPv4 mode of this embodiment. As shown in Figure 3, the method includes the following steps:

[0069] 1) MS authentication and authorization process

[0070] During this process, the AAA sends the DHCP server address or directly sends the host configuration information (Host CI), and the information is sent by the authenticator (Authenticator) to the DHCP relay / proxy (DHCP Relay / Proxy) entity for storage.

[0071] Steps 2), 3), and 4) are the same as those in the prior art (see FIG. 2 ), wherein the home address (HoA) is delivered to the MS by the HA during the MIP registration process. Here, the entity that allocates the HoA address to the MS, that is, the HA, needs to avoid that the prefix of the allocated IP address is the same as the prefi...

Embodiment 2

[0076] In this embodiment, the HoA can first be obtained through the DHCP message flow and the DHCP protocol. The DHCP server address or Host CI and HoA required in the DHCP message flow can be sent to the ASN-GW through the AAA in the process of authentication and authorization. The default DHCP server address or HostCI and HoA information can be pre-configured in the ASN-GW. For example, the DHCP server address is configured in the DHCP relay or the Host CI and HoA information is configured by default in the DHCP agent.

[0077] Fig. 4 is a method for establishing a service connection process in the CMIPv4 mode of Embodiment 2 of the present invention; as shown in Fig. 4, the method includes the following processes:

[0078] 1) MS authentication and authorization process

[0079] During this process, the AAA can deliver the DHCP server address, or directly deliver the Host CI and HoA, and if delivered, the information will be sent by the authenticator (Authenticator) to the...

Embodiment 3

[0098] As a supplement to Embodiment 2, it is applicable when the AAA does not issue the HoA address and the DHCP server address, and the DHCP relay / agent does not pre-configure the HoA information (or does not use the pre-configured HoA information), and needs to register through MIP How to obtain the HoA address.

[0099] 1) The process of MS authentication and authorization, in which AAA only issues the Host CI, which is sent by the authenticator to the DHCP proxy entity for storage.

[0100] 2) The initial data channel is established.

[0101] 3) The terminal initiates a DHCP message request (DHCP Discovery) to obtain the HoA address and host configuration information.

[0102] Steps 4), 5) After receiving the DHCP Discovery message, the DHCP agent triggers the FA to initiate an agent broadcast message, and the agent broadcast message carries the CoA address.

[0103] 6) The terminal initiates a MIP registration request message RRQ after receiving the proxy broadcast mes...

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PUM

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Abstract

The method includes steps: (1) establishing initial data channel between mobile terminal and network side; (2) terminal initiates message in dynamic host configuration protocol (DHCP); using DHCP obtains configuration information including configuration information of host. The invention can obtain configuration information including home of address, and configuration information of host.

Description

technical field [0001] The present invention relates to mobile IP technology, in particular to a method for acquiring configuration information based on client mobile IPv4. Background technique [0002] WiMAX (Worldwide Interoperability for Microwave Access) is a wireless metropolitan area network technology based on the mature IEEE 802.16 standard, which regulates the wireless technology of wireless wide area network and point-to-multipoint wireless network. The WiMAX network is mainly composed of three parts, namely the client (MSS / SS), the access service network (ASN) including the base station (BS) and the access service network gateway (ASNGW), and the prepaid server (PPS), The connection service network (CSN) of logical entities such as authentication, authorization and accounting server (AAA Server). The wireless side of the WiMAX network is a wireless metropolitan area network access technology based on the IEEE 802.16d / e standard. Now mainly follow the IEEE 802.16...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L12/56
Inventor 顾亮吴建军
Owner HUAWEI TECH CO LTD
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