# RouteFilterPrefix
<a name="API_RouteFilterPrefix"></a>

Information about a route filter prefix that a customer can advertise through Border Gateway Protocol (BGP) over a public virtual interface.

## Contents
<a name="API_RouteFilterPrefix_Contents"></a>

 ** cidr **   <a name="DX-Type-RouteFilterPrefix-cidr"></a>
The CIDR block for the advertised route. Separate multiple routes using commas. An IPv6 CIDR must use /64 or shorter.  
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/directconnect-2012-10-25/RouteFilterPrefix) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/directconnect-2012-10-25/RouteFilterPrefix) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/directconnect-2012-10-25/RouteFilterPrefix)