DevOps Coach

Sep 2, 2025 · Cloud Computing

Master AWS VPC CIDR Planning: 2025 Best Practices & Hidden IP Secrets

This guide explains why careful CIDR selection for AWS VPCs is critical in 2025, outlines the hidden five‑IP reservation rule, presents sizing tables, offers a step‑by‑step decision framework, and shares real‑world examples of IP exhaustion in EKS and PrivateLink deployments.