What is an elastic network interface (ENI) and when would you use it?
ENI A connected to a public-facing subnet ENI B connected to an internal private subnet You could, for example, attach an ENI to a running EC2 instance, or you could have it live after the EC2 instance is …
amazon web services - AWS: Elastic IP vs ENI - Stack Overflow
Aug 7, 2018 · As far as high availability goes, what is the difference between using an Elastic IP or an Elastic Network Interface to mask instance failure? Is the only difference because ENIs can be used …
AWS Elastic Network Interface Charges - Stack Overflow
Feb 3, 2025 · ENI charges include IPv4 charges, as well as cross-region and cross-availability zone (AZ) traffic charges. AWS charges for traffic going to other regions and for traffic between different …
Can't detach network interfaces - Stack Overflow
I had an ENI deployed by a Lambda function after deleting the lambda function, the ENI got stuck. After some time I was able to detach the ENI. Update: for the people using the aws cli, AWS support …
aws Lambda created ENI not deleting while deletion of stack
I am using custom resource to run the lambda from CloudFormation template, so lambda will be called both stack creation and deletion. The ENI will be used in creation of stack and deletion of stack. Now …
How to get all AWS resources connected to given AWS ENI
Apr 12, 2023 · ENI can be attached to resources other than EC2. e.g., Lambda function, NAT GW, Load Balancer, etc. Unfortunately, there is no one-size-fits-all CLI command that will solve this. I will list …
Terraform cant delete security group for lambda ENI
Nov 1, 2022 · One discovery that helped our org after we encountered a similar issue was that older Lambda versions might hold a reference to the security group (and corresponding ENI) that you wish …
amazon web services - AWS ENI doesn't get public IP adress even …
Jun 28, 2023 · I have created a VPC and an Elastic Network Interface, but my ENI doesn't get assigned a public IP adress. I checked the subnet that the ENI is in, and it has its Auto-assign public IPv4 …
Terraform / AWS stuck in "still destroying..." subnet and security ...
Jul 2, 2023 · I am creating a scraped data cleaning pipeline in aws using terraform so I can reuse the configuration later too for other use-cases. Infra steps: Upload csv to an S3 bucket Trigger Lambda …
Amazon ECS on EC2 Server instance hitting RESOURCE:ENI error
Amazon ECS supports launching container instances with increased ENI density using supported Amazon EC2 instance types. When you use these instance types and opt in to the awsvpcTrunking …