The video addresses the challenge of managing IP addresses at scale within Amazon Web Services (AWS). The solution is provided through Amazon VPC IP Address Manager (IPAM) and AWS Cloud WAN, which together offer an automated, scalable approach to IP address management and global network routing.


The main challenge discussed is the complexity of managing IP addresses across multiple Virtual Private Clouds (VPCs), subnets, and regions within AWS. This complexity grows exponentially as the network scales, leading to difficulties in tracking IP addresses, updating routing tables, and ensuring no conflicts or overlaps occur. Traditional methods such as spreadsheets are insufficient for this task due to their manual nature and lack of real-time updates.


The solution to this challenge is Amazon VPC IP Address Manager (IPAM) combined with AWS Cloud WAN. IPAM allows for automated planning, tracking, and monitoring of IP addresses across all AWS regions and accounts, supporting both IPv4 and IPv6. AWS Cloud WAN simplifies the creation and management of global networks by providing dynamic, multi-region routing out of the box. This combination enables automated IP address assignments, proactive monitoring, and detailed audits, eliminating the need for manual spreadsheet updates.

Key Features of IPAM:

  1. Hierarchical structure for IP address pools.
  2. Automated IP address assignment and conflict prevention.
  3. Integration with CloudWatch for proactive monitoring.
  4. Auditing capabilities for IP address usage.

Key Features of Cloud WAN:

  1. Dynamic multi-region routing.
  2. Centralized management of global networks.
  3. Integration with existing AWS services for a seamless experience.
  4. Automated configuration and updates to VPC routing tables.


  • Introduction and Overview (0:00 – 2:30)
    • Introduction by Du’An Lightfoot and Ankit Chadha.
    • Agenda for the session.
  • Problem Description (2:30 – 10:00)
    • Overview of IP addressing challenges at scale.
    • Examples of network scaling and the increasing complexity of IP address management.
    • Challenges of using spreadsheets for IP address management.
  • Solution Overview (10:00 – 15:00)
    • Introduction to Amazon VPC IP Address Manager (IPAM).
    • Features and benefits of IPAM.
    • How IPAM integrates with AWS services.
  • Detailed Explanation of IPAM (15:00 – 25:00)
    • Hierarchical design and setup of IPAM.
    • Real-world workflow and examples.
    • Automation of IP address assignments and conflict prevention.
  • Introduction to AWS Cloud WAN (25:00 – 35:00)
    • Overview of Cloud WAN and its capabilities.
    • How Cloud WAN simplifies global network management.
    • Integration of Cloud WAN with IPAM for automated routing solutions.
  • Use Cases and Implementation (35:00 – 50:00)
    • Real-world examples of using Cloud WAN and IPAM.
    • Step-by-step setup and configuration.
    • Demonstration of automated routing and network management.
  • Deep Dive into Event-Driven Automation (50:00 – 1:10:00)
    • Event-driven architecture for automating routing updates.
    • Detailed walkthrough of the JSON policies and EventBridge rules.
    • How the Lambda function processes events and updates routing tables.
  • Conclusion and Q&A (1:10:00 – 1:20:00)
    • Summary of the solution and its benefits.
    • Additional resources and related sessions.
    • Audience Q&A and closing remarks.