Chapter 2. Overview of VPN and IPSec Technologies

Terms you'll need to understand:

  • VPN

  • IPSec

  • Symmetric/asymmetric keys

  • DES/3DES/RSA/AES encryption

  • MD5/SHA-1 hashes

  • Diffie-Hellman groups

  • Authentication Header (AH)

  • Encapsulation Security Protocol (ESP)

  • Internet Key Exchange (IKE)

  • Transport and tunnel modes

  • Security Association (SA)

Techniques you'll need to master:

  • Identify the three types of VPNs

  • Determine the appropriate VPN device for businesses

  • Understand the four functions of IPSec

  • Identify ESP and AH tunnel mode versus transport mode

  • Know the five steps of IPSec communication

This chapter introduces many of the protocols and standards that are consistent throughout the entire book. The purpose of this chapter is to help you develop a firm foundation of these technologies, as well as introduce the Cisco hardware platforms that utilize these technologies.



CSVPN Exam Cram 2 (Exam 642-511)
CCSP CSVPN Exam Cram 2 (Exam Cram 642-511)
ISBN: 078973026X
EAN: 2147483647
Year: 2002
Pages: 185

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