Udemy
    •  
    •  
    •  
    •  
    •  
    •  
    •  
    •  
Subscribe
Turn what you know into an opportunity and reach millions around the world.
Learn More
Your cart is empty.
Keep shopping
Mastering Cisco IPsec VPN by Arash Deljoo
Highest Rated
Rating: 4.7 out of 5(43 ratings)
296 students

Mastering Cisco IPsec VPN by Arash Deljoo

From Encryption Fundamentals to Advanced IPsec VPNs with Hands-On Cisco Labs and Troubleshooting
Highest Rated
Created byArash Deljoo
Last updated 7/2026
English
English [Auto],

What you'll learn

  • Motivations for Deploying a VPN - VPN Technologies
  • Symmetric Encryption
  • Asymmetric Encryption
  • Digital Signature
  • Hashing and Message Digest
  • Public Key Encryption Methods
  • RSA Public Key Technologies
  • Diffie-Hellman Key Exchange
  • Internet Key Exchange (IKE)
  • IPsec Security Protocols - AH and ESP
  • IPsec Configuration
  • 1Static Virtual Tunnel Interface Configuration
  • Static VTI with Default ISAKMP and Transform-Set
  • IPsec Virtual Tunnel Interface Troubleshooting
  • Dynamic Virtual Tunnel Interface (VTI)

Course content

8 sections • 21 lectures • 6h 40m total length

  • VPN Technologies and Deployment Options18:56

    1-Introduction to the Motivations for Deploying VPNs

    2-Introduction to VPN Technologies

    3-Introduction to Layer 2 VPNs

    4-Introduction to Layer 3 VPNs

    5-Introduction to GRE Tunnels

    6-Introduction to MPLS VPNs

    7-Introduction to IPsec VPNs

    8-Introduction to Remote Access VPNs

  • VPN Technologies and Deployment Options Quiz
  • Encryption Fundamentals11:34

    1-Encryption and Decryption Terminology

    2-Symmetric Encryption Fundamentals

    3-Symmetric Encryption Algorithms: DES, 3DES, and AES

    4-Asymmetric Encryption Fundamentals

    5-Public and Private Key Concepts

  • Encryption Fundamentals Quiz
  • Symmetric Encryption4:20

    1-Symmetric Encryption Fundamentals

    2-Symmetric Encryption Algorithms

    3-Common Uses of Symmetric Encryption

  • Asymmetric Encryption8:07

    1-Introduction to Asymmetric Encryption

    2-Asymmetric Encryption Algorithms

    3-Public Key Concepts and Usage

    4-Private Key Concepts and Usage

  • Symmetric vs. Asymmetric Cryptosystems8:35

    1-Attempts to Compromise Symmetric-Key Cryptosystems

    2-Attempts to Compromise Asymmetric-Key Cryptosystems

    3-Comparing Symmetric and Asymmetric Cryptosystems

Requirements

  • You can implement scenarios in GNS3 or EVE-NG.

Description

Protecting modern networks requires much more than simply configuring a VPN. To build secure enterprise infrastructures, network engineers must understand the principles behind cryptography, authentication, key exchange, and secure tunneling technologies. This course provides a complete learning path from encryption fundamentals to deploying and troubleshooting Cisco IPsec VPN solutions.

You will begin by learning the foundations of cryptography, including symmetric and asymmetric encryption, digital signatures, HMAC, hashing algorithms, message digests, RSA, Diffie-Hellman key exchange, and public key concepts. These topics are explained in a practical and easy-to-understand manner, allowing you to understand not only how these technologies work but also why they are essential for secure communications.

After building a solid cryptographic foundation, you will move into Cisco IPsec technologies. You will explore Internet Key Exchange (IKE), Authentication Header (AH), Encapsulating Security Payload (ESP), IPsec Security Associations, and the complete IPsec negotiation process. The course explains how each protocol contributes to confidentiality, integrity, authentication, and anti-replay protection.

The practical section focuses on real-world Cisco implementations. You will configure and verify Site-to-Site IPsec VPNs, Static Virtual Tunnel Interfaces (VTI), Dynamic Virtual Tunnel Interfaces (DVTI), IPsec protection profiles, virtual templates, and advanced deployment scenarios. Every configuration is demonstrated step-by-step using Cisco IOS devices, making it easy to follow and reproduce in your own lab environment.

Troubleshooting is an essential skill for every network engineer. Throughout the course, you will learn how to diagnose IKE and IPsec negotiation failures, verify VPN establishment, interpret Cisco show and debug commands, and identify common configuration mistakes that prevent VPN connectivity.

Whether you are preparing for Cisco certifications such as CCNA, CCNP Enterprise (ENARSI), CCIE Enterprise Infrastructure, or CCIE Security, or you simply want to strengthen your enterprise networking and security skills, this course will provide the knowledge and hands-on experience required to confidently deploy secure VPN solutions.

By the end of this course, you will have a deep understanding of modern cryptography, enterprise VPN technologies, Cisco IPsec implementation, and advanced VTI deployments. More importantly, you will gain practical skills that can be immediately applied in production networks and real-world enterprise environments.

Who this course is for:

  • Enterprise Network Engineer
  • Enterprise Security Engineer

Report abuse