AWS Certified Advanced Networking – Specialty (ANS-C01)Network DesignMedium
A global company has a complex network architecture with hundreds of VPCs spread across multiple AWS Regions and accounts. They need a robust and scalable solution to manage IP addresses, prevent overlaps, and centralize the allocation of CIDR blocks to new VPCs. The solution should also integrate with their existing on-premises IPAM system for hybrid cloud consistency. Which AWS service is explicitly designed for this purpose?
- AAWS Resource Access Manager (RAM).
- BAmazon CloudWatch for IP address monitoring.
- CAWS IP Address Manager (IPAM).
- DVPC Flow Logs with custom Lambda functions.
Show answer & explanationAnswer & explanation
Correct answer: C. AWS IP Address Manager (IPAM).
AWS IP Address Manager (IPAM) is a VPC feature that provides centralized IP address management. It allows organizations to plan, track, and monitor IP addresses across their AWS environments, prevent overlaps, and integrate with on-premises IPAM systems for hybrid consistency.
Why the other options are wrong
- A. AWS Resource Access Manager (RAM) shares AWS resources between accounts, not for IP address management.
- B. Amazon CloudWatch monitors metrics and logs, but does not manage or allocate IP addresses.
- D. VPC Flow Logs capture network traffic information, not IP address management or allocation.
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 master librarian for all your IP addresses, on-prem and in the cloud.