ec2-instance-multiple-eni-check - Amazon Config
Services or capabilities described in Amazon Web Services documentation might vary by Region. To see the differences applicable to the China Regions, see Getting Started with Amazon Web Services in China (PDF).


Checks if Amazon Elastic Compute Cloud (Amazon EC2) uses multiple Elastic Network Interfaces (ENIs) or Elastic Fabric Adapters (EFAs). The rule is NON_COMPLIANT an Amazon EC2 instance use multiple network interfaces.


Resource Types: AWS::EC2::Instance

Trigger type: Configuration changes

Amazon Web Services Region: All supported Amazon regions except Asia Pacific (Osaka), Amazon GovCloud (US-East), Amazon GovCloud (US-West) Region


NetworkInterfaceIds (Optional)
Type: CSV

Comma-separated list of network instance IDs

Proactive Evaluation

For steps on how to run this rule in proactive mode, see Evaluating Your Resources with Amazon Config Rules. For this rule to return COMPLIANT in proactive mode, the resource configuration schema for the StartResourceEvaluation API needs to include the following inputs, encoded as a string:

"ResourceConfiguration": ... { "NetworkInterfaces": "[NetworkInterfaceId-1, NetworkInterfaceId-2, NetworkInterfaceId-3, ...]" } ...

For more information on proactive evaluation, see Evaluation Mode.

Amazon CloudFormation template

To create Amazon Config managed rules with Amazon CloudFormation templates, see Creating Amazon Config Managed Rules With Amazon CloudFormation Templates.