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Introduction to Computer Networks and Cybersecurity by J. David Irwin, Chwan-Hwa Wu

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Chapter 24

Virtual Private Networks for Network Layer Security

The learning goals for this chapter are as follows:

  • Understand Internet Protocol security (IPsec) and the critical role it plays in providing secure communications over the IP layer
  • Learn the various components of IPsec that provide security services and explore its modes of operation
  • Examine the packet format and the function of the components within it that work in concert for packet protection
  • Understand the numerous issues involved in the application of the Internet Key Exchange (IKE) for establishing crypto keys, including the underlying mathematics, protocols, components, functional elements and phases
  • Understand the data link layer Virtual Private Network (VPN) protocols ...

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