Addressing private IPv4 exhaustion with AWS Cloud WAN service insertion
Networking & Content Delivery Blog
This article discusses how to address private IPv4 exhaustion using AWS Cloud WAN and service insertion, providing a strategic approach to maximizing IP address usage and reducing network complexity.
- Uses the RFC 6598 CGN range (100.64.0.0/10) as an AWS-internal routable IP domain
- Centralizes NAT Gateways and PrivateLink to optimize IP space utilization
- Implements a multi-segment approach with Production, Hybrid, Inbound, and Outbound Network Function Group segments
- Enables routing between AWS routable and company-wide routable IP domains
- Provides centralized traffic translation and routing without multiple VPC-level NAT gateways
The solution offers a scalable method for managing private IPv4 addresses in AWS environments, reducing IP allocation challenges and improving network efficiency.
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