# Ipv4PrefixSpecification
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Describes an IPv4 prefix.

## Contents
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 ** ipv4Prefix **   
The IPv4 prefix. For information, see [ Assigning prefixes to network interfaces](https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-prefix-eni.html) in the *Amazon EC2 User Guide*.  
Type: String  
Required: No

## See Also
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For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/ec2-2016-11-15/Ipv4PrefixSpecification) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/ec2-2016-11-15/Ipv4PrefixSpecification) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/ec2-2016-11-15/Ipv4PrefixSpecification)