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Method for distributing network address, network system and network node

A network address and distribution method technology, applied in the transmission system, network data management, digital transmission system, etc., can solve the problem of not providing a mobile node address distribution method, and achieve the effect of solving the address distribution problem

Active Publication Date: 2009-07-01
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] Regardless of the mobility mode, when the mobile node moves in the NGN network, the network side needs to allocate an address for the mobile node, but the NACF architecture in the prior art NGN network does not provide an address allocation method for the mobile node when it moves

Method used

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  • Method for distributing network address, network system and network node
  • Method for distributing network address, network system and network node
  • Method for distributing network address, network system and network node

Examples

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Embodiment Construction

[0029] The embodiment of the present invention provides a method for allocating network addresses, which is used to realize address allocation for mobile nodes when they move.

[0030] In the existing NGN network mobility architecture, the embodiment of the present invention expands the definition and allocation method of CoA (care-of address) and HoA (home address) in Mobile IP, and defines these two addresses as local care-of addresses in the present invention L-CoA and local home address L-HoA.

[0031] L-CoA is a local On-Link (on-link) address, which identifies the location information of the mobile node in the current access domain. When the mobile node moves and switches within an access domain to change the attachment position, the L-CoA will change. L-HoA is the local home address of the mobile user, which can identify the access domain where the MN is currently located. When the mobile node moves and switches within an access domain, the L-HoA does not change; but ...

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PUM

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Abstract

The embodiment of the invention discloses a distribution method of a network address, which comprises the following steps: when a mobile node moves in the different access domains of a visit network, the visit network forwards the authentication request of the mobile node to the home network of the mobile node; the home network authenticates the mobile node after receiving the authentication request; after the home network passes the authentication, a local home address L-HoA is distributed for the mobile node according to the user information of the mobile node; and the visit network distributes a local care-of address L-CoA for the mobile node after passing the authentication. Accordingly, the embodiment of the invention provides a network system and a network node. The technical scheme provided by the invention can achieve the address assignment when the mobile node moves.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method for allocating network addresses, a network system and a network node. Background technique [0002] NGN (Next Generation Network, Next Generation Network) is an open converged network with softswitch as the core, optical network and packet transmission technology as the basis. It can provide voice, video, data and other multimedia integrated services. It adopts an open and standard system structure. NACF ​​(Network Attachment Control Function, Network Attachment Control Function) is an important control function entity of the transport layer in the next-generation network architecture. Its main functions include CPE (Customer Premises Equipment, customer premise equipment) network access authentication, IP Configuration of address and access parameters, binding update of mobile location, generation and push delivery of user policies, etc. [0003] see figure 1...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/12H04L29/06H04L12/56
CPCH04W74/004H04W80/04H04W8/26H04W12/06H04L63/0892H04W8/02H04W60/00H04W88/06
Inventor 周倩宫小玉
Owner HUAWEI TECH CO LTD
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