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Method for verifying intra-domain source address of software-defined network

A technology of software-defined network and verification method, which is applied in the field of software-defined network, can solve problems such as poor compatibility of CPF, achieve the effect of solving poor compatibility and overcoming false positive problems

Inactive Publication Date: 2019-01-04
TSINGHUA UNIV
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  • Application Information

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Problems solved by technology

[0005] In view of this, the purpose of the present invention is to provide a method for verifying the source address in the domain of a software-defined network, and transplant the CPF into a network environment that incorporates the architecture of the software-defined network to solve the problem of poor compatibility of the CPF in the prior art. technical problem

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  • Method for verifying intra-domain source address of software-defined network
  • Method for verifying intra-domain source address of software-defined network
  • Method for verifying intra-domain source address of software-defined network

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Embodiment Construction

[0038] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. the embodiment. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0039] An embodiment of the present invention provides a method for verifying a source address in a domain of a software-defined network, such as figure 1 As shown, the software-defined network includes network applications, network controllers, and routers. Such as figure 2 As shown, the verification methods include:

[0040] Step S1, the router collects the data to be sent, and...

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Abstract

The invention provides a method for verifying the intra-domain source address of a software-defined network, which relates to the technical field of software-defined network. A router collects data tobe sent, wherein the data to be sent includes an intra-domain source address; based on a preset transmission protocol, the router encapsulates the data to be sent into a format corresponding to the transmission protocol to obtain encapsulated data; the router transmits the encapsulated data based on the transmission protocol; a network controller receives the encapsulated data, de-encapsulates the data and processes the data accordingly, and pushes the processed data to an upper network application; and the upper network application verifies the intra-domain source address in the received data. The technical problem of poor compatibility of CPF (Calculating Path Forwarding) in the prior art is solved by transplanting CPF to a network environment incorporating the idea of a software defined network system structure.

Description

technical field [0001] The invention relates to the field of software-defined networks, in particular to a method for verifying an intra-domain source address of a software-defined network. Background technique [0002] Since the current TCP / IP protocol does not check the source address of the message when forwarding the message, the source address of the message is easy to be forged. At present, there are a large number of forged source address attacks on the Internet, and many kinds of network attacks will use forged source address technology. Therefore, falsifying source addresses poses serious problems both in terms of network security and network management and metering. [0003] In order to avoid source address forgery attacks and ensure the reliability of source address information in the network, a series of source address verification methods have been proposed in academia and industry. In 2008, Tsinghua University proposed a "Network Addressing Architecture Based...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L12/741H04L45/74
CPCH04L45/74H04L45/745H04L63/08H04L63/0876H04L69/22
Inventor 毕军张梦豪李冠宇高凯
Owner TSINGHUA UNIV
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