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Virtual private network system and data processing method thereof

A technology of virtual private network and data processing, which is applied in the field of virtual private network system and its data processing, and can solve problems such as high requirements for network equipment and increased operating costs

Inactive Publication Date: 2008-10-15
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When the IP network uses MPLS to implement VPN, the MPLS function must be enabled in the network, which has higher requirements on network equipment and increases operating costs.

Method used

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  • Virtual private network system and data processing method thereof
  • Virtual private network system and data processing method thereof
  • Virtual private network system and data processing method thereof

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Experimental program
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Embodiment Construction

[0021] The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0022] The present invention provides a kind of method of VPN data processing method, comprises the following steps:

[0023] When the first PE receives the first data packet, it can determine the VPN to which the first data packet belongs based on the parameters carried in the first data packet or through the port definition in advance, and query the virtual network of the VPN according to the VPN to which the first data packet belongs. Routing and forwarding table, in the virtual routing and forwarding table, determine the IP address of the second PE according to the destination IP address of the first data packet, and encapsulate the IP address of the second PE with the destination IP address as the IP address of the second PE on the first data packet A packet header, and adding a VPN ID to the first data packet to ...

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PUM

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Abstract

The invention relates to a virtual private networking system and a data processing method thereof. The method comprises the steps as follows: a first service provider border router receives virtual private network identity sent by a second service provider border router in advance; the first service provider border router receives a first data packet and encapsulates the first data packet with an IP packet header; the virtual private network identity is added into the first data packet, and the data packet is sent to the second service provider border router; the second service provider border router receives the data packet and carries out route looking-up and transmitting according to the virtual private network identity. The system comprises the first service provider border router and the second service provider border router. By adopting the system and the data processing method of the invention, IP technology can be directly utilized to realize the virtual private network, which reduces the requirement for network equipment and operating costs.

Description

technical field [0001] The invention relates to a virtual private network system and a data processing method thereof, in particular to a virtual private network system in an IP network and a data processing method thereof. Background technique [0002] Virtual private network (Virtual Private Network, hereinafter referred to as: VPN) technology refers to the division of multiple logical networks on a physical network through related technologies. These logical networks are isolated from each other and invisible to each other. Each user uses a logical network . In this way, a relatively safe information access channel is established for each user. [0003] The current IP network uses Multi-Protocol Label Switching (Multi-Protocol Label Switching, hereinafter referred to as MPLS) to implement VPN. Such as figure 1 As shown, first enable the MPLS function in the IP network to which the first service provider border router (Provider Edge, hereinafter referred to as: PE) and ...

Claims

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Application Information

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IPC IPC(8): H04L12/46H04L12/56H04L1/00H04L29/06
Inventor 李连源
Owner CHINA MOBILE COMM GRP CO LTD
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