# IP Addressing Strategy and VLSM

> Master efficient IP allocation using VLSM, CIDR, and route summarization to optimize enterprise network design and conserve IPv4 space.

Canonical: https://codelivly.com/rooms/ip-addressing-strategy-and-vlsm
Last updated: 2026-09-03

| | |
|---|---|
| Level | Intermediate |
| Category | Networking |
| Lessons | 5 |
| Estimated time | 30 min |
| XP | 200 |

Transition from basic subnetting to strategic IP address planning. This module dives deep into Variable Length Subnet Masking (VLSM), Classless Inter-Domain Routing (CIDR), and route summarization. You will learn how to design hierarchical IP schemas that minimize routing table sizes, prevent IP exhaustion, and align perfectly with your network's physical topology. Perfect for network engineers preparing for CCNA, CCNP Enterprise, or daily operational efficiency.

## Lessons

1. What Is an IP Addressing Strategy and Why Does It Matter (30 min)
2. Variable Length Subnet Masking (VLSM) (30 min)
3. Route Summarization Planning (30 min)
4. IPv6 Addressing & Transition Strategies (30 min)
5. Guided Lab: Designing an IP Addressing Plan for a Multi-Site Network (30 min)

## Related

- [Learning path: Network Design and Architecture](https://codelivly.com/learning-paths/network-design-and-architecture)
- [All rooms](https://codelivly.com/rooms)