Allocating and Releasing IPv6 CIDR for a Subnet

Last Updated At: 2025-10-21 09:10:00

  1. Log in to the VPC Console.
  2. Click Subnet in the left directory. On the top of the Subnet list, select Region and VPC. All subnet information under the region and VPC will be displayed.
  3. Select a subnet and click Allocate IPv6 CIDR. The system will allocate one /64 IPv6 CIDR.
  4. Select a subnet that has obtained an IPv6 CIDR, click Release IPv6 CIDR, and confirm the operation. The system will then reclaim the IPv6 CIDR of the subnet.