# TunnelOption
<a name="API_TunnelOption"></a>

The VPN tunnel options.

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

 ** dpdTimeoutAction **   
The action to take after a DPD timeout occurs.  
Type: String  
Required: No

 ** dpdTimeoutSeconds **   
The number of seconds after which a DPD timeout occurs.  
Type: Integer  
Required: No

 ** enableTunnelLifecycleControl **   
Status of tunnel endpoint lifecycle control feature.  
Type: Boolean  
Required: No

 ** IkeVersionSet.N **   
The IKE versions that are permitted for the VPN tunnel.  
Type: Array of [IKEVersionsListValue](API_IKEVersionsListValue.md) objects  
Required: No

 ** logOptions **   
Options for logging VPN tunnel activity.  
Type: [VpnTunnelLogOptions](API_VpnTunnelLogOptions.md) object  
Required: No

 ** outsideIpAddress **   
The external IP address of the VPN tunnel.  
Type: String  
Required: No

 ** Phase1DHGroupNumberSet.N **   
The permitted Diffie-Hellman group numbers for the VPN tunnel for phase 1 IKE negotiations.  
Type: Array of [Phase1DHGroupNumbersListValue](API_Phase1DHGroupNumbersListValue.md) objects  
Required: No

 ** Phase1EncryptionAlgorithmSet.N **   
The permitted encryption algorithms for the VPN tunnel for phase 1 IKE negotiations.  
Type: Array of [Phase1EncryptionAlgorithmsListValue](API_Phase1EncryptionAlgorithmsListValue.md) objects  
Required: No

 ** Phase1IntegrityAlgorithmSet.N **   
The permitted integrity algorithms for the VPN tunnel for phase 1 IKE negotiations.  
Type: Array of [Phase1IntegrityAlgorithmsListValue](API_Phase1IntegrityAlgorithmsListValue.md) objects  
Required: No

 ** phase1LifetimeSeconds **   
The lifetime for phase 1 of the IKE negotiation, in seconds.  
Type: Integer  
Required: No

 ** Phase2DHGroupNumberSet.N **   
The permitted Diffie-Hellman group numbers for the VPN tunnel for phase 2 IKE negotiations.  
Type: Array of [Phase2DHGroupNumbersListValue](API_Phase2DHGroupNumbersListValue.md) objects  
Required: No

 ** Phase2EncryptionAlgorithmSet.N **   
The permitted encryption algorithms for the VPN tunnel for phase 2 IKE negotiations.  
Type: Array of [Phase2EncryptionAlgorithmsListValue](API_Phase2EncryptionAlgorithmsListValue.md) objects  
Required: No

 ** Phase2IntegrityAlgorithmSet.N **   
The permitted integrity algorithms for the VPN tunnel for phase 2 IKE negotiations.  
Type: Array of [Phase2IntegrityAlgorithmsListValue](API_Phase2IntegrityAlgorithmsListValue.md) objects  
Required: No

 ** phase2LifetimeSeconds **   
The lifetime for phase 2 of the IKE negotiation, in seconds.  
Type: Integer  
Required: No

 ** preSharedKey **   
The pre-shared key (PSK) to establish initial authentication between the virtual private gateway and the customer gateway.  
Type: String  
Required: No

 ** rekeyFuzzPercentage **   
The percentage of the rekey window determined by `RekeyMarginTimeSeconds` during which the rekey time is randomly selected.  
Type: Integer  
Required: No

 ** rekeyMarginTimeSeconds **   
The margin time, in seconds, before the phase 2 lifetime expires, during which the AWS side of the VPN connection performs an IKE rekey.  
Type: Integer  
Required: No

 ** replayWindowSize **   
The number of packets in an IKE replay window.  
Type: Integer  
Required: No

 ** startupAction **   
The action to take when the establishing the VPN tunnels for a VPN connection.  
Type: String  
Required: No

 ** tunnelInsideCidr **   
The range of inside IPv4 addresses for the tunnel.  
Type: String  
Required: No

 ** tunnelInsideIpv6Cidr **   
The range of inside IPv6 addresses for the tunnel.  
Type: String  
Required: No

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