ENIs – fundamentals, configuration, and use cases
An ENI is a virtual network interface that you can attach to an EC2 instance hosted within a virtual private cloud (VPC). ENIs provide you great flexibility with the network configuration of your EC2 instances. The flexible configuration allows you to scale your EC2 instances to support advanced use cases such as network appliances or multi-homed instances. In this section, we will dive deeper and explore understanding ENIs, their properties, and configuration options such as attaching, detaching, and managing them. We will also touch upon and explore security and performance implications associated with ENIs and conclude by examining their use cases.
Understanding ENIs, their properties, and configuration options
An ENI consists of several properties, including the following:
- Primary private IPV4 address
- One or more secondary private IPv4 addresses
- One Elastic IP address per private IPv4 address
- One...
