# WAN Technologies and Edge Security

> Master Wide Area Network (WAN) fundamentals, including MPLS, leased lines, and broadband, and learn to secure enterprise edge connectivity.

Canonical: https://codelivly.com/rooms/wan-technologies-and-edge-security
Last updated: 2026-09-04

| | |
|---|---|
| Level | Intermediate |
| Category | Networking |
| Lessons | 4 |
| Estimated time | 30 min |
| XP | 200 |

Wide Area Networks (WANs) are the critical arteries connecting distributed enterprise sites, data centers, and cloud environments. This module explores the evolution and mechanics of modern WAN technologies, from traditional MPLS and dedicated leased lines to modern broadband and 5G/LTE cellular backhaul. You will learn how these technologies operate, their respective security implications, and how attackers exploit misconfigured edge routers or intercept unencrypted WAN traffic. Finally, you will implement defensive controls like MACsec, IPsec overlays, and strict edge access control lists to harden the enterprise perimeter.

## Lessons

1. What Is a WAN and Why Does It Matter (30 min)
2. MPLS Fundamentals (30 min)
3. SD-WAN Architecture & Benefits (30 min)
4. Guided Lab: Comparing WAN Topologies in a Simulated Environment (30 min)

## Related

- [Learning path: WAN, VPN and Cloud Networking](https://codelivly.com/learning-paths/wan-vpn-and-cloud-networking)
- [All rooms](https://codelivly.com/rooms)