# ClientVpnAuthentication
<a name="API_ClientVpnAuthentication"></a>

Describes the authentication methods used by a Client VPN endpoint. For more information, see [Authentication](https://docs.aws.amazon.com/vpn/latest/clientvpn-admin/client-authentication.html) in the * AWS Client VPN Administrator Guide*.

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

 ** activeDirectory **   
Information about the Active Directory, if applicable.  
Type: [DirectoryServiceAuthentication](API_DirectoryServiceAuthentication.md) object  
Required: No

 ** federatedAuthentication **   
Information about the IAM SAML identity provider, if applicable.  
Type: [FederatedAuthentication](API_FederatedAuthentication.md) object  
Required: No

 ** mutualAuthentication **   
Information about the authentication certificates, if applicable.  
Type: [CertificateAuthentication](API_CertificateAuthentication.md) object  
Required: No

 ** type **   
The authentication type used.  
Type: String  
Valid Values: `certificate-authentication | directory-service-authentication | federated-authentication`   
Required: No

## See Also
<a name="API_ClientVpnAuthentication_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/ClientVpnAuthentication) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/ec2-2016-11-15/ClientVpnAuthentication) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/ec2-2016-11-15/ClientVpnAuthentication)