IPSec Explained Visually | AH, ESP, Tunnel Mode, IKE & OSI Layers Simplified

In this video, we break down IPSec (Internet Protocol Security) using a clean visual approach, walking you through: 🔹 How IPSec fits into the OSI Model 🔹 The difference between Authentication Header (AH) and Encapsulating Security Payload (ESP) 🔹 The challenges of NAT with IPSec and how NAT Traversal (NAT-T) fixes it 🔹 What Security Associations (SA) are and how they manage crypto settings 🔹 The Internet Key Exchange (IKE) process using Diffie-Hellman 🔹 The two IPSec Modes: Transport Mode vs. Tunnel Mode — when and why to use them Whether you're studying for Security+, CCNA, or just want to really understand how IPSec protects modern networks, this video delivers it all in one streamlined, beginner-friendly lesson. 🔐 Security doesn’t have to be confusing. Let’s decode IPSec together!