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Method for transmitting message to mobile node by other-place agent in mobile IP network

A mobile node and foreign agent technology, applied in the field of network communication, can solve the problem of consuming system resources, and achieve the effects of saving system resources, improving forwarding performance, and reducing maintenance

Inactive Publication Date: 2006-08-09
刘相文
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] Therefore, for the same mobile node, if the corresponding home agent and foreign agent are the same router, if the above process is still used in the mobile IP network, it will cause a large amount of extra system resources to be consumed

Method used

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  • Method for transmitting message to mobile node by other-place agent in mobile IP network
  • Method for transmitting message to mobile node by other-place agent in mobile IP network
  • Method for transmitting message to mobile node by other-place agent in mobile IP network

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Embodiment Construction

[0040] The core of the present invention is that for a mobile node, if its home agent and foreign agent are the same router, when the mobile node registers with the foreign agent, no tunnel will be established between the home agent and the foreign agent. The proxy also no longer maintains pending entries, so as to simplify the packet forwarding process in this special case and save system resources in the router.

[0041] In order to have a clearer understanding of the present invention, the specific implementation of the present invention will be described below by taking the case where the foreign agent and the home agent of a certain mobile node are the same router as an example.

[0042] Such as figure 2 and image 3 As shown, the present invention includes the following steps in the specific implementation process:

[0043] Step 31: the mobile node sends a registration message to the foreign agent, and the foreign agent receives the registration message of the mobile ...

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Abstract

The method defines a router in mobile Internet IP network as outland proxy and home proxy for a node, and builds relevant information of list item for the mobile node. The information of list item includes information of proxy ID in use for identifying the router as outland proxy and home proxy at same time. When receiving message sent to the mobile node, the said outland proxy determines that outland proxy of the mobile node is identical to the home proxy based on information of proxy ID so as to send the message to corresponding mobile node directly. The invention does not need to create and maintain item to be defined in access list of the outland proxy, also does not need to establish tunnel between home proxy and outland proxy so as to provide advantages: reducing maintenance for additional number effectively, raising forwarding performance of router, reducing load on registering procedure so as to save system resource of router.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a method for forwarding messages from a foreign agent to a mobile node in a mobile IP network. Background technique [0002] Mobile IPv4 is a protocol that enables mobile nodes to move between IP networks, still using the same IP address, ensuring that the existing connection is not interrupted, and does not need to consider the current access point information of the mobile node. [0003] The networking structure of the mobile communication network based on mobile IP is as follows: figure 1 shown and figure 2 As shown, it mainly includes mobile nodes, home agents, foreign agents and communication nodes. [0004] The mobile node is a node that always uses the same home address when moving from one access point to another access point of another network. [0005] The home agent is a router in the home network of the mobile node, the router can intercept the messa...

Claims

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Application Information

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IPC IPC(8): H04Q7/38H04L29/06H04W28/10H04L12/56H04W8/12H04W80/04
Inventor 凯沙瓦·埃努纬卡斯·郭尔阿恰娜阿荣·哈拉维
Owner 刘相文
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