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A system and method for realizing virtual private network communication

A technology of a virtual private network and an implementation method, which is applied in the system field of realizing virtual private network communication, and can solve problems such as increasing user costs, limiting network scalability, and lack of guarantee for user autonomy, flexibility, and security. Achieve the effects of improving scalability, flexibility and security, and saving access fees

Inactive Publication Date: 2008-09-10
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the virtual private network in the prior art, special equipment is required when using the public data network for data transmission, which increases the user's use cost, and the prior art greatly limits the scalability of the network, making the user's autonomy, Flexibility and security are not guaranteed

Method used

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  • A system and method for realizing virtual private network communication
  • A system and method for realizing virtual private network communication
  • A system and method for realizing virtual private network communication

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Embodiment Construction

[0026] Various preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0027] The present invention provides a system and method for realizing virtual private network communication. In the prior art, a GRE (Generic Routing Encapsulation: General Routing Encapsulation Protocol) tunnel module and interface management module are added, which saves user access fees and improves Autonomy, flexibility and security of business access.

[0028] Such as figure 1 As shown, the system and method of the present invention mainly involve the following four modules: a VPN (Virtual Private Network: virtual private network) module, an interface management module, a GRE tunnel module, and an IP module.

[0029] The VPN module implements the following functions: configuring a VRF (VPN Route Forwarding: virtual route forwarding) instance or deleting the VRF instance, maintaining attributes related to the VRF, and providing...

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Abstract

The invention discloses a system and a method for realizing communication of a virtual private network. The system adds a generic routing encapsulation protocol tunnel module and an interface management module on the basis of the prior art; message to be sent is encapsulated with the generic routing encapsulation protocol to search for a virtual private network route forwarding table and be sent out from the tunnel; message received is deblocked to search for a virtual route forwarding bound to a local tunnel and forwarded to the corresponding virtual private network. The system and the method of the invention greatly save access fee of users, simplify complexity of network management and greatly improve expansibility of the network, thereby guaranteeing independence, flexibility and safety of user access.

Description

technical field [0001] The invention relates to a system and a method for establishing a virtual private network to communicate with an enterprise network across a public network in the communication field, and in particular to a system and a method for realizing virtual private network communication. Background technique [0002] MPLS (Multiprotocol Label Switching: Multiprotocol Label Switching) is the standardization and latest development of emerging multi-layer switching technology since the mid-1990s. The original intention of proposing MPLS technology is to speed up the speed of IP forwarding. Although the original motivation of MPLS was to increase the forwarding speed of routing and switching equipment, with the continuous development of hardware technology and network processor technology, the three-layer hardware forwarding has become popular today, and the longest matching between MPLS label switching and IP The performance is almost the same, and the absolute ad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L12/46H04L12/721
Inventor 李波
Owner ZTE CORP
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