description Amazon Web Services (AWS) Elastic IPs Overview
AWS offers one of the most robust and reliable Elastic IP (EIP) solutions in the world. These are static IPv4 addresses designed for use with EC2 instances. They provide massive scalability, integrated DDoS protection via AWS Shield, and global reach across multiple Availability Zones. It is the gold standard for developers building production-grade applications that require high availability and a consistent public face.
help Amazon Web Services (AWS) Elastic IPs FAQ
Does AWS charge you for an Elastic IP that isn't attached to an instance?
Yes, AWS applies a small hourly billing charge for any Elastic IP (EIP) that is allocated to your account but not actively attached to a running EC2 instance. This specific fee is designed to prevent users from hoarding limited IPv4 addresses.
How does AWS Shield protect Elastic IPs?
All Elastic IPs automatically benefit from AWS Shield Standard, which provides baseline protection against common Distributed Denial of Service (DDoS) attacks at no extra cost. Customers requiring deeper mitigation can subscribe to the paid AWS Shield Advanced tier.
Are AWS Elastic IPs tied to specific regions?
Yes, an Elastic IP is strictly allocated to a single AWS Region, such as us-east-1 or eu-west-1. You cannot seamlessly transfer an EIP across different regions without utilizing AWS Global Accelerator.
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