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Method and Gateway Device for Establishing Internet Protocol Security Tunnel

An Internet protocol and gateway device technology, applied in the field of establishing Internet protocol security tunnels, can solve problems such as poor scalability, and achieve the effect of lowering the configuration threshold

Active Publication Date: 2019-12-24
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Poor scalability of the prior art solutions

Method used

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  • Method and Gateway Device for Establishing Internet Protocol Security Tunnel
  • Method and Gateway Device for Establishing Internet Protocol Security Tunnel
  • Method and Gateway Device for Establishing Internet Protocol Security Tunnel

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Embodiment Construction

[0027] The technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of them. Based on the embodiments in this application, all other embodiments obtained by a person of ordinary skill in the art without creative work shall fall within the protection scope of this application.

[0028] It should be noted that, in the embodiments of the present application, the gateway device may also be referred to as an "Internet Protocol Security Virtual Private Network (Internet Protocol Security Virtual Private Network, referred to as "IPsec VPN") gateway. The gateway device refers to the Internet Protocol Security Protocol and Generic Routing Encapsulation (GenericRouting Encapsulation, referred to as "GRE") protocol equipment, for example, may b...

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Abstract

Embodiments of the present invention provide a method for establishing an Internet security tunnel and a gateway device, including: the gateway device searches the routing table for the first IPsec tunnel destination address whose destination address is the IPsec tunnel destination address according to the IPsec tunnel destination address in the IPsec configuration information. Routing; find the first outgoing interface on the gateway device corresponding to the first routing in the routing table; establish the first GRE tunnel with the IP address of the first outgoing interface as the source address and the destination address of the IPsec tunnel as the destination address ;Through the first GRE tunnel, publish the IPsec tunnel source address in the IPsec tunnel configuration information to the peer device, and establish the IPsec tunnel source address with the peer device through the first GRE tunnel with the IPsec tunnel destination address as the destination IPsec tunnel address. It can automatically support the expansion of multiple egresses, reducing the configuration threshold for IPsec tunnels to support multiple egresses.

Description

Technical field [0001] The embodiment of the present invention relates to the field of network communication technology, and in particular to a method and gateway device for establishing an Internet protocol security tunnel. Background technique [0002] As the scale of the company continues to grow, more and more companies have begun to expand their business in different places or even overseas, and set up branches. How to achieve safe communication, resource sharing, and unified operation and management between various branches at a lower cost is a prominent problem faced by major companies and manufacturers. For this reason, Virtual Private Network (Virtual Private Network, referred to as "VPN") technology emerged at the historic moment. It can use cheap public networks such as the Internet as a transmission medium to help companies or between different branches through encryption and encapsulation. A safe and reliable connection is established between the branch structure an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04L12/741H04L12/46H04L12/66H04L45/74
CPCH04L12/4633H04L12/66H04L45/745H04L63/029
Inventor 赖朝辉樊辉吴皓
Owner HUAWEI TECH CO LTD
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