11.1What is a VPN?
11.2Types of VPNs
11.3VPN Protocols & Modes
11.4VPN Components
11.5Remote Access Technologies
11.6Site‑to‑Site VPNs
11.7VPN Security Considerations
11.8Real‑World Scenario – Enterprise VPN Deployment
11.9Comparison Table – VPN Protocols
11.10VPN Lab – Interactive Linux Terminal (Industry Level)
11.11Check Your Knowledge
11.12LAB 32: Mininet Basic Topology
11.13LAB 33: SDN Flow Control
11.14LAB 34: Link Failure Recovery
11.15LAB 35: Traffic Engineering