VPCs and subnets now support more sizes for IPv6 CIDRs - devamazonaws.blogspot.com

Amazon VPC allows customers to create VPCs and subnets of different sizes using IPv6 CIDRs. With this capability, customers can now create VPCs in sizes between /44 and /60, and subnets in sizes between /44 and /64, in increments of /4. Before today, AWS supported one standard IPv6 CIDR block size of /56 for VPC and /64 for subnet, whereas IPv4 CIDR block size were flexible for both VPCs and subnets.

Post Updated on November 16, 2023 at 10:47PM

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