This topic describes how to revoke a secondary private IP address from an Elastic Network Interface (ENI).


The primary private IP address cannot be revoked.


  • At least one secondary private IP addresses is assigned to the target ENI.
  • The target ENI is in the Available or InUse state.
  • If the secondary private IP addresses to be revoked is assigned to the primary ENI, the instance to which the primary ENI is attached must be in the Running or Stopped state.


  1. Log on to the ECS console.
  2. In the left-side navigation pane, choose Network & Security > ENI.
  3. On the Network Interfaces page, locate the target ENI, and then click Manage Secondary Private IP Address in the Actions column.
  4. In the Manage Secondary Private IP Address dialog box, click Unassign once or multiple times if additional IP addresses need to be revoked.
  5. Click Modify.

Related API: UnassignPrivateIpAddresses

What to do next

If your application requirements change, you can assign multiple secondary private IP address to an ENI. For more information, see Assign a secondary private IP address.