Overview
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Read the articleAUTHORS
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Mohammed ACHEMLAL: Head of R&D Unit "Intranet Security Services" FTR&D/DMI/SIR
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Michel DUDET: Head of Programs and Operations FTR&D/DMI
INTRODUCTION
This article describes the technologies used to build virtual private networks (VPNs). A classification of VPNs is proposed, identifying those that require interaction with a telecom operator's network and those that can be built independently of the transport network.
The article focuses on the main technologies operating at Layer 2 or Layer 3 of the OSI model: IPSec, L2TP, GRE and MPLS. The architectures and services associated with these architectures are also analyzed.
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VPN technologies
Virtual Private Network VPN
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"Security of information systems"
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