# AnalysisPacketHeader
<a name="API_AnalysisPacketHeader"></a>

Describes a header. Reflects any changes made by a component as traffic passes through. The fields of an inbound header are null except for the first component of a path.

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

 ** DestinationAddressSet.N **   
The destination addresses.  
Type: Array of strings  
Length Constraints: Minimum length of 0. Maximum length of 15.  
Pattern: `^([0-9]{1,3}.){3}[0-9]{1,3}$`   
Required: No

 ** DestinationPortRangeSet.N **   
The destination port ranges.  
Type: Array of [PortRange](API_PortRange.md) objects  
Required: No

 ** protocol **   
The protocol.  
Type: String  
Required: No

 ** SourceAddressSet.N **   
The source addresses.  
Type: Array of strings  
Length Constraints: Minimum length of 0. Maximum length of 15.  
Pattern: `^([0-9]{1,3}.){3}[0-9]{1,3}$`   
Required: No

 ** SourcePortRangeSet.N **   
The source port ranges.  
Type: Array of [PortRange](API_PortRange.md) objects  
Required: No

## See Also
<a name="API_AnalysisPacketHeader_SeeAlso"></a>

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/AnalysisPacketHeader) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/ec2-2016-11-15/AnalysisPacketHeader) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/ec2-2016-11-15/AnalysisPacketHeader)