Create an Elastic Network Interface (ENI)

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

  1. Log in to the VPC console.
  2. Click IP and Network Card > ENI to open the ENI list page.
  3. Select the region and VPC and click Create.
  4. In the pop-up, enter a name, select the VPC and subnet to which the secondary ENI belongs, allocate an IP to the NI, and add tags if necessary.

    Note:

    • The security group of the secondary ENI needs to be configured separately. After the secondary ENI is created, determine the security policy of the ENI based on the business situation and bind it to a security group. For details, see Bind Security Group.
    • IP allocation supports automatic allocation and manual filling:
      • Automatic Allocation: The system will automatically allocate an available private IP within the subnet CIDR range to the network interface.
      • Manual Entry: You need to fill in an available private IP within the subnet CIDR range.
      • The secondary ENI is configured with a primary IP by default. If you need multiple IPs, click Add a secondary IP to configure multiple secondary IPs.

  1. In the pop-up, select the VPC and subnet where the ENI is located, select the allocated private IP (which can be automatically generated or manually filled in), and set the tag information.
  2. After the parameter settings are completed, click OK.