Chapter 18. Internet Protocol Security (IPsec)

Internet Protocol security (IPsec) is a set of Internet Engineering Task Force (IETF) standards that provide protection for IP packets through the use of cryptography, security protocols, and dynamic key management. IPsec can protect IP traffic from end to end (when two IPsec peers communicate) or on an intermediate part of a network path (when IPsec routers protect traffic exchanged over the Internet). This chapter describes the details of IPsec headers and the negotiation protocols supported ...

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