Elastic IP Addresses

An Elastic IP address is a static IPv4 address designed for dynamic cloud computing. With an Elastic IP address, you can mask the failure of an instance or software by rapidly remapping the address to another instance in your account. This is useful when you need to host a website or application that cannot tolerate downtime.

Features of Elastic IP addresses

• Elastic IP addresses are static IP addresses designed for dynamic cloud computing.
• You can associate an Elastic IP address with any instance in your VPC.
• You can disassociate the Elastic IP address from the instance and allocate it to another instance in your account.
• You can remap the Elastic IP address to another instance in your account in the event of instance failure.
• You can mask the failure of an instance or software by rapidly remapping the Elastic IP address to another instance in your account.

Creating an Elastic IP address

1. Open the Amazon VPC console at https://console.aws.amazon.com/vpc/ (opens in a new tab).
2. In the navigation pane, choose Elastic IPs.
3. Choose Allocate new address.
4. Choose Allocate.