- In the VPC dashboard, click Elastic IPs. Select the Elastic IP and click Associate Address. Select each EC2 instance you wish to assign this address to.
- In the EC2 dashboard, click on EC2 instance. Under Actions, select networking > Manage IP Addresses. click to add a new IP address and type in the address of the Elastic IP. Repeat the process for each EC2 instance you want to assign this Elastic IP to.
- Use the AWS CLI and pass in several ‘–instance-id’ options to hte aws ec2 assosiate-address command.
- An elastic IP cannot be assigned to multiple EC2 instances. It can only be assosiated to a single EC2 instance.
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