Default VPC In Use

Determines whether the default VPC is being used for launching EC2 instances.

The default VPC should not be used in order to avoid launching multiple services in the same network which may not require connectivity. Each application, or network tier, should use its own VPC.

Follow the appropriate remediation steps below to resolve the issue.

  1. Log into the AWS Management Console.

  2. Select the “Services” option and search for VPC. Step

  3. Scroll down the left navigation panel and choose “Your VPC” under “VPC Dashboard”. Step

  4. Copy the default “VPC ID” from the “VPC” dashboard.

  5. Select the “Services” option and search for EC2. Step

  6. Scroll down the left navigation panel and choose “Instances”.

  7. Click inside the " Filter by tags and attributes or search by keyword box" and paste the “VPC ID” we copied in Step4 and press “Enter”. AWS console will return one or more EC2 instances using “default VPC”.Step

  8. Repeat steps number 2 - 6 to check other AWS regions.

  9. Navigate to “VPC Dashboard” and choose “Your VPC” and click on the “Create VPC” button at the top panel. Step

  10. Inside “Create VPC” dialog box provide a name to the new VPC and within IPv4 CIDR block box, specify an IPv4 address range for the new VPC. Select the “IPv6 CIDR block” and “Tenancy” option as per the application requirement and click on the “Create” button at the bottom to create a new VPC. Step

  11. Navigate to the “EC2 dashboard” and select the “EC2 Instance” which is on default VPC. Click on the “Actions” button at the top and choose “Image” to create an “Amazon Machine Image” of the selected Instance. Step

  12. Under the “Create Image” panel provide the “Image Name” and “Image Description” and click on the “Create Image” button at the bottom.Step

  13. Once the “AMI” is created click on the “Launch Instance” button at the top panel to create a new “Instance”.Step

  14. Clcik on the “My AMIs” option and choose the “AMI”.Step

  15. Provide the other necessary details for the new “EC2-Instance” and under the “Configuration Instance” choose the newly created “VPC” instead of default VPC.Step

  16. Click on the “Launch” button once reviewing the necessary configuration to launch the new “EC2-Instance”. Once the new “EC2-Instance” is in healthy state remove the older “EC2-Instance” which is using the default VPC.