Wondering how to recover Elastic IP address in EC2? We can help you.

Generally, if we release the Elastic IP address, we may be able to recover it.

Here, at Bobcares, we assist our customers with several AWS queries as part of our AWS Support Services.

Today, let us see how our Support Techs do the same.

Recover Elastic IP address in EC2

Moving ahead, let us discuss the rules that apply in this case and the methods our Support Techs employ to fix this query.

The most common rules that apply are the following:

1. Suppose the IP allocates to another AWS account, or if it will result in exceeding the Elastic IP address limit. In that case, we fail to recover.
2. If there are tags associated with an Elastic IP address then we cannot recover.
3. In addition, we may fail to recover using the Amazon EC2 API or a command-line tool only.

Let us now see how our Support Techs recover using AWS CLI and Powershell.

• Recover via AWS CLI

To recover via AWS CLI we use the allocate-address AWS CLI command. Then we specify the IP address using the –address parameter as follows.

aws ec2 allocate-address --domain vpc --address 203.0.113.3

• Recover via Powershell

In this case, we use the New-EC2Address AWS Tools for Windows PowerShell command. After that, we specify the IP address using the -Address parameter as follows.

PS C:\> New-EC2Address -Address 203.0.113.3 -Domain vpc -Region us-east-1

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Conclusion

To conclude, most often we can recover the elastic IP if we release the Elastic IP address. In this article, we saw how our Support Techs recover Elastic IP address in EC2 using AWS CLI and Powershell.