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Method and system for establishing L2TP tunnel

A technology of tunnel establishment and establishment method, applied in the field of communication, can solve the problems of configuration errors, low timeliness, and high maintenance costs, and achieve the effects of improving performance, high maintenance costs, improving efficiency, and correcting configuration rates.

Inactive Publication Date: 2014-03-12
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The present invention provides a method and system for establishing an L2TP tunnel to at least solve the problem of low timeliness, high maintenance cost and easy configuration errors due to manual configuration in the process of configuring LAC and LNS in the related art question

Method used

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  • Method and system for establishing L2TP tunnel
  • Method and system for establishing L2TP tunnel
  • Method and system for establishing L2TP tunnel

Examples

Experimental program
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Effect test

Embodiment 1

[0077] In this embodiment, the LAC device sends an L2TP tunnel establishment request during the user access process, and the LNS device sends the tunnel session limit parameter to the LAC device during the tunnel establishment process. refer to Figure 10 As shown, it specifically includes steps S1002 to S1018.

[0078] In step S1002, the user initiates an access request to the LAC device in a PPP over Ethernet (PPPoverEthernet, PPPoE for short) manner.

[0079] Step S1004, the LAC device interacts with the AAA to complete user identity authentication.

[0080] In step S1006, the LAC device determines that the user is an L2TP user, and sends a tunnel establishment request message SCCRQ to the LNS device.

[0081] Step S1008, after receiving the SCCRQ, the LNS device judges whether the request is legal. If it is valid, execute step S1010, otherwise execute step S1018.

[0082] Step S1010, carry the tunnel session limit parameter in the corresponding L2TP tunnel configuratio...

Embodiment 2

[0092] In this embodiment, after the LNS device starts, it initiates the establishment of the L2TP tunnel according to the pre-configured static L2TP tunnel and tunnel bandwidth limit parameters. refer to Figure 11 As shown, it specifically includes step S1102 to step S1110.

[0093] Step S1102, after the LNS device is powered on and started, according to the pre-configured static L2TP tunnel information, an SCCRQ message is sent to the LAC device to establish an L2TP tunnel, carrying pre-configured tunnel bandwidth limit parameters.

[0094] Step S1104, after receiving the SCCRQ message, the LAC device judges whether the request is legal. If it is valid, execute step S1106; otherwise, execute step S1110.

[0095] Step S1106, return the SCCRP message to the LNS device.

[0096] The LAC device can determine whether the tunnel establishment request of the LNS device is legal according to the local tunnel configuration information, or interact with the AAA to determine whethe...

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Abstract

The invention discloses a method and a system for establishing an L2TP tunnel. The method comprises that: a first device and a second device arranged on two ends of the tunnel acquire unified tunnel configuration parameters via message interaction; and the tunnel is established by the first device and the second device according to the unified tunnel configuration parameters. With application of the invention, problems in the related technology that configuration is low in timeliness and high in maintenance cost, and configuration errors are liable to occur due to commonly applied manual configuration in the configuration process of an LAC and an LNS are solved so that entire network device parameters are unified with configuration of only one device in the manual configuration process, and thus performance of the system is enhanced.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a method and system for establishing a Layer 2 Tunneling Protocol (Layer 2 Tunneling Protocol, L2TP for short) tunnel. Background technique [0002] L2TP technology is a very widely used virtual private network (Virtual Private Network, referred to as VPN) technology, L2TP users first connect to the L2TP access concentrator (L2TP Access Concentrator, referred to as LAC) equipment through the access network, and then through the L2TP tunnel of the lower network Connect to the remote L2TP network server (L2TP Network Server, LNS for short) device. Among them, both LAC and LNS have user management functions, and LNS centrally manages all L2TP users corresponding to a VPN, and L2TP tunnels are between LAC and LNS, passing through lower-layer network devices. [0003] The two main application scenarios of the L2TP service are enterprise VPN access and business wholesale between ope...

Claims

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Application Information

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IPC IPC(8): H04L12/46H04L29/06
CPCH04L12/4633
Inventor 范亮陈勇袁博
Owner ZTE CORP
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