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Guide to IPsec VPNs. Recommendations of the National Institute of Standards and Technology

机译:Ipsec VpN指南。国家标准与技术研究所的建议

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摘要

IPsec is a framework of open standards for ensuring private communications over public networks. It has become the most common network layer security control, typically used to create a virtual private network (VPN). A VPN is a virtual network built on top of existing physical networks that can provide a secure communications mechanism for data and control information transmitted between networks. VPNs are used most often to protect communications carried over public networks such as the Internet. A VPN can provide several types of data protection, including confidentiality, integrity, data origin authentication, replay protection and access control. Although VPNs can reduce the risks of networking, they cannot totally eliminate them. For example, a VPN implementation may have flaws in algorithms or software, or a VPN may be set up with insecure configuration settings and values. Both of these flaws can be exploited by attackers.

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