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Method and system for supporting PMIPv6 (Proxy Mobile IPv6) mobility

A technology supporting system and mobility, applied in the field of network transmission

Inactive Publication Date: 2014-03-12
NANJING ZHONGXING SOFTWARE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0028] However, when there is NAT between the MAG and the LMA, there is no solution in the prior art that can solve PMIPv6's support for IPv4, so a solution needs to be proposed to solve the mobility support in this scenario

Method used

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  • Method and system for supporting PMIPv6 (Proxy Mobile IPv6) mobility

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Embodiment Construction

[0058] The basic idea of ​​the present invention is: when the MN supporting IPv4 moves to the PMIPv6 domain of the NAT scene, the MAG sends a PBU message to the LMA, and the PBU message carries the IPv4 network address translation port number and the public IPv4 home address request; the LMA receives the PBU message After the message, add or update the IPv4 network address translation port number and the public IPv4 home address in the BCE of the MN according to the PBU message, and return the public IPv4 home address to the MAG; the MAG adds or updates the IPv4 network address in the BUL of the MN Address translation port number and public IPv4 home address; when the message is forwarded, MAG and LMA forward the message according to the public IPv4 home address and IPv4 network address translation port number.

[0059] The present invention realizes a PMIPv6 mobility support method, such as figure 2 As shown, the method includes the following steps:

[0060] Step 201: when ...

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Abstract

The invention discloses a method for supporting PMIPv6 (Proxy Mobile IPv6) mobility, which comprises the following steps of: sending a proxy binding update (PBU) message by a mobile access gateway (MAG) when a mobile node (MN) supporting IPv4 is moved into a PMIPv6 domain of a network address translation scene; receiving the PBU message by a local mobile anchor (LMA), and adding or updating an IPv4 network address translation port number and a public IPv4 home address in binding update items of the MN; adding and updating the IPv4 network address translation port number and the public IPv4 home address by the MAG in a binding update list of the MN; and forwarding the message by the MAG and the LMA according to the public IPv4 home address and the Pv4 network address translation port number. Meanwhile, the invention discloses a system for supporting PMIPv6 mobility. According to the scheme of the invention, the support of PMIPv6 to IPv4 during network address translation can be met.

Description

technical field [0001] The invention relates to network transmission technology, in particular to a support method and system for proxy mobile IPv6 (PMIPv6) mobility. Background technique [0002] The transition from IPv4 to IPv6 is a long-term process. During this transition, both IPv6 and IPv4 protocols will be used in the same network structure. Therefore, the mobile node (MN, MobileNode) in the PMIPv6 domain may operate in IPv4-only, IPv6-only or dual-stack mode, and the mobile access gateway (MAG, Mobile Access Gateway) communicates with the local mobile anchor point (LMA, The network between Local MobilityAnchor) may be an IPv4 or IPv6 network. In this way, it is necessary to provide mobility support for MNs in IPv4-only, IPv6-only or dual-stack mode in the PMIPv6 domain. [0003] The brief description of the draft-ietf-netlmm-pmip6-ipv4-support-18 (IPv4 Support for Proxy MobileIPv6) protocol is as follows: All mobility entities, LMA and MAG are dual-stack, and mobil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/12H04L29/06H04L12/70
Inventor 严为潘云波魏元
Owner NANJING ZHONGXING SOFTWARE
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