Understand Elastic IPs
Explore the concept of Elastic IPs on AWS and learn how to allocate and manage static public IPv4 addresses. Understand the importance of Elastic IPs for persistent network communication with EC2 instances, and gain practical skills to associate, disassociate, and release these IPs to optimize cloud networking and avoid unnecessary charges.
Introduction
The problem with AWS auto-assignment of public IPv4 addresses to EC2 instances is that the IP address is released once the EC2 instance is stopped, and a new public IPv4 address is assigned to it when it is started again. This can be problematic in cases where persistent network communication is required between resources, and it can result in a lot of manual overhead. The above problem is solved by providing access to a static public IPv4 address that does not change and can be reused as needed.
An Elastic IP (EIP) is a static public IPv4 address allocated ...