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         Understanding IPSec VPNs培訓(xùn)

Objectives
Review TCP/IP and the fields in the IP Header.
Describe the fields and headers in the ISAKMP Protocol.
Describe Main Mode negotiation to set up Phase 1 of a VPN
Describe Aggressive Mode negotiation to set up Phase 1 of a VPN.
Describe Quick Mode negotiation to set up Phase 2 of a VPN.
Compare IKEv1 and IKEv2 protocols.
Describe Symmetric and Public/Private Key encryption.
Describe ISAKMP Security Associations.
Describe IPSec Security Associations.
Describe IPSec AH Protocol.
Describe IPSec ESP Protocol.
Describe and Explain Diffie-Hellman Key Exchange.
Describe prime and primitive root of a prime number.
Describe, explain and configure site to site VPN’s using Cisco Routers and/or ASA Firewalls.
Describe Remote Access VPN’s using ADSL and Dial-up.
Use debug commands in Cisco CLI and wireshark to demonstrate and troubleshoot VPN negotiation.
Practical Exercises:
Lab Exercise 1: IPSec using manual, symmetric encryption keys.
Lab Exercise 2: IPSec using IKE and shared secret
Lab Exercise 3: IPSec using IKE and certificate authentication.