An elastic IP address is designed for quick fail-over in a dynamic Amazon Web Services cloud environment.

Using an elastic IP address allows you to rapidly fail over to another machine. In vRealize Automation, the elastic IP address is available to all business groups that have rights to the region.

The elastic IP address is associated with your Amazon Web Services account, not a particular machine. The address remains associated with your Amazon Web Services account until you choose to release it. You can release it to map it to a specific machine instance.

An administrator can allocate elastic IP addresses to your Amazon Web Services account by using the AWS Management Console. One range of addresses is allocated to a non-Amazon VPC region and another range to a Amazon VPC region.

A tenant administrator or business group manager can use a custom property to assign an elastic IP address to a machine during provisioning. A machine owner or an administrator with rights to edit the machine can assign an elastic IP addresses to a machines after it is provisioned. However, if the address is already associated to a machine instance, and the instance is part of the Amazon Virtual Private Cloud deployment, Amazon does not assign the address.

A machine owner can view the elastic IP address assigned to that machine. Only one Amazon machine at a time can use the elastic IP address.

vRealize Automation does not track the cost of using the elastic IP address.

There are two groups of elastic IP addresses in any given a region, one group for non-Amazon VPC instances and another group for Amazon VPCs. If you allocate addresses in a non-Amazon VPC region only, the addresses will not be available in an Amazon VPC. The reverse is also true. If you allocate addresses in an Amazon VPC only, the addresses will not be available in a non-Amazon VPC region.

For more information about creating and using Amazon elastic IP addresses, see Amazon Web Services documentation.