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Home > Guides > Dashboard Users Guide > Clouds > AWS Regions > EC2 Elastic IPs > Actions > Assign an Elastic IP at Launch

Assign an Elastic IP at Launch

The most common way to use an Elastic IP (EIP) is to assign it to a server when it's launched for the first time.  You can also assign an Elastic IP to a current running instance.  If you select an EIP, but uncheck the "Associate IP at launch" option, the instance will be randomly assigned a Public IP address at launch time; the Elastic IP will not be assigned to the instance.

There are several different ways to configure a server so that a specific Elastic IP will be associated and used by the instance at launch time. 

Add a Server to a Deployment

screen-AddServerAddEIP-v1.png

 

Modify Inactive Server

You can also change the configuration of a server to associate an EIP at launch time.  You can only apply this setting to an inactive server that has not been launched.  So, if there is a "Current" server that's already running, you'll need to modify the "Next" server.  

screen-AssignEIP-Server-v1.png

 

WARNING!  You can steal an Elastic IP from a running instance!  Be sure to check and make sure that a running instance is not using the EIP that you want to assign to a new server.

 

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Last modified
22:14, 16 May 2013

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