This topic describes how to delete a secondary IPv4 CIDR block of a Virtual Private Cloud (VPC) network. You cannot delete the primary IPv4 CIDR block of a VPC network.


You have deleted the VSwitch that is created with the secondary IPv4 CIDR block. For more information, see Delete a VSwitch.


  1. Log on to the VPC console.
  2. On the top of the page, select the region where your VPC network is deployed.
  3. On the VPCs page, find the VPC network that you want to manage, and click Manage in the Actions column.
  4. On the VPC Details page, click the CIDRs tab.
  5. Find the secondary IPv4 CIDR block that you want to delete, and click Delete in the Actions column.
  6. In the message that appears, click OK.