# StatelessRule


A single stateless rule. This is used in [StatelessRulesAndCustomActions](API_StatelessRulesAndCustomActions.md).

## Contents


 ** Priority **   <a name="networkfirewall-Type-StatelessRule-Priority"></a>
Indicates the order in which to run this rule relative to all of the rules that are defined for a stateless rule group. Network Firewall evaluates the rules in a rule group starting with the lowest priority setting. You must ensure that the priority settings are unique for the rule group.   
Each stateless rule group uses exactly one `StatelessRulesAndCustomActions` object, and each `StatelessRulesAndCustomActions` contains exactly one `StatelessRules` object. To ensure unique priority settings for your rule groups, set unique priorities for the stateless rules that you define inside any single `StatelessRules` object.  
You can change the priority settings of your rules at any time. To make it easier to insert rules later, number them so there's a wide range in between, for example use 100, 200, and so on.   
Type: Integer  
Valid Range: Minimum value of 1. Maximum value of 65535.  
Required: Yes

 ** RuleDefinition **   <a name="networkfirewall-Type-StatelessRule-RuleDefinition"></a>
Defines the stateless 5-tuple packet inspection criteria and the action to take on a packet that matches the criteria.   
Type: [RuleDefinition](API_RuleDefinition.md) object  
Required: Yes

## See Also


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/network-firewall-2020-11-12/StatelessRule) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/network-firewall-2020-11-12/StatelessRule) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/network-firewall-2020-11-12/StatelessRule)