Today, AWS announced the ability for Amazon VPC IP Address Manager (IPAM) to automate prefix lists updates with prefix list resolver (PLR). This feature allows network administrators to automatically update prefix lists based on their business logic in IPAM improving their operational posture and reducing overhead.
Using IPAM PLR, you can define business rules for synchronizing prefix lists with IP address ranges from various resources, such as VPCs, subnets and IPAM pools. These prefix lists can then be referenced in resources such as route tables and security groups across your AWS environment, based on your connectivity requirements. Previously, you had to manually update your prefix lists to add or remove IP address ranges based on changes to your AWS environment. This was operationally complex and error prone. IPAM PLR automates prefix list updates requiring no manual intervention, improving your operational posture.
This feature is now available in all AWS Regions where Amazon VPC IPAM is supported, including AWS China Regions, and AWS GovCloud (US) Regions.
To learn more about this feature, view the AWS IPAM documentation. For details on pricing, refer to the IPAM tab on the Amazon VPC Pricing Page.
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Source: Amazon Web Services
