AWS Certified Advanced Networking – Specialty (ANS-C01)Network DesignMedium
A global enterprise with a complex on-premises network and hundreds of AWS VPCs needs a robust IP address management solution. They require centralized visibility, automated IP allocation, and the ability to prevent IP overlaps across their hybrid cloud environment. The solution must integrate with existing AWS services and support delegated administration. Which AWS service should they utilize?
- AAWS IP Address Manager (IPAM).
- BAmazon Route 53 with private hosted zones for IP tracking.
- CManually manage IP addresses using spreadsheets and custom scripts.
- DAWS Organizations for account-level IP segregation.
Show answer & explanationAnswer & explanation
Correct answer: A. AWS IP Address Manager (IPAM).
AWS IP Address Manager (IPAM) provides centralized IP address management across AWS accounts and VPCs, supporting both public and private IP addresses. It helps prevent overlapping IP ranges, automates IP allocation, and integrates with Route 53 Resolver for hybrid DNS, making it ideal for complex hybrid environments.
Why the other options are wrong
- B. Route 53 manages DNS records, not the allocation and management of IP address ranges themselves, although it integrates with IPAM.
- C. Manual management is error-prone, not scalable, and lacks automation and overlap prevention, making it unsuitable for a complex enterprise.
- D. AWS Organizations helps manage accounts but does not provide IP address allocation, tracking, or overlap prevention mechanisms, which is the core problem.
AWS IP Address Manager (IPAM)
A feature of Amazon VPC that makes it easier to plan, track, and monitor IP addresses for your AWS workloads.
- Centralized IP address management across accounts and regions.
- Automates IP allocation and prevents overlaps.
- Integrates with Route 53 Resolver for hybrid DNS.
Memory trick: IPAM is the central brain for all your IP addresses.