Understanding IPSec VPNs Training Course

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Course Language

This course is delivered in Polish or English.

Course Code


Duration Duration

14 hours (usually 2 days including breaks)

Requirements Requirements

Knowledge of TCP/IP and Cisco IOS would be an advantage.

Overview Overview

This 2 day course investigates the theory and technology associated with IPSec VPN’s.VPN’s are setup using Cisco IOS Routers and ASA Firewalls using the web interface. The workings of the protocols are examined using debug commands and protocol analyser traces of relevant negotiations.


Suitable for network planners, engineers or anyone interested in IPSec VPNs

Course is approximately 40% practical

Course Outline Course Outline


  • 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.

Guaranteed to run even with a single delegate!
Public Classroom Public Classroom
Participants from multiple organisations. Topics usually cannot be customised
From 2642PLN
Private Classroom Private Classroom
Participants are from one organisation only. No external participants are allowed. Usually customised to a specific group, course topics are agreed between the client and the trainer.
Private Remote Private Remote
The instructor and the participants are in two different physical locations and communicate via the Internet
From 7400PLN
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The more delegates, the greater the savings per delegate. Table reflects price per delegate and is used for illustration purposes only, actual prices may differ.

Number of Delegates Public Classroom Private Remote
1 2642PLN 7400PLN
2 2421PLN 4800PLN
3 2347PLN 3933PLN
4 2311PLN 3500PLN
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