Chapter 16. IPsec VPNs

This chapter covers the following topics:

IPsec Protocol

IPsec Protocol Framework

Encapsulating IPsec Packets

Transport Versus Tunnel Mode

Confidentiality Using Encryption Algorithms

Data Integrity Using Hashing Algorithms

Peer Authentication Methods

Key Exchange Algorithms

NSA Suite B Standard

Internet Key Exchange

IKE Negotiation Phases

IKEv1 Phase 1 (Main Mode and Aggressive Mode)

IKEv1 Phase 2 (Quick Mode)

IKEv2 Phase 1 and 2

IKEv1 Versus IKEv2

IPv6 VPNs

IPsec Protocol

The IP Security (IPsec) protocol is an open standard that provides the following:

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IPsec Protocol Framework

IPsec identifies ...

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