Virtual Private Cloud (VPC) - Prefix lists can be referenced in security group rules.
Apr 30 2024
Virtual Private Cloud (VPC)Content
Enhancement: VPC prefix lists can be referenced in security group rules, efficiently managing CIDR blocks and implement and implementing unified management of routes and security policies. Before, users needed to modify each security group to accommodate frequently changing CIDR blocks or expand access scope, resulting in complex configurations prone to errors. Now, they can combine rules with the same port and protocol but different CIDR blocks into one prefix list rule. To expand network access, you only need to update the CIDR block in the prefix list. All associated security groups will be automatically updated synchronously. This significantly improves the O&M efficiency of network policies.
Help Document
https://www.alibabacloud.com/help/vpc/user-guide/prefix-list-use-cases