CreateNatGateway - Virtual Private Cloud - Alibaba Cloud Documentation Center

Creates an enhanced Internet NAT gateway or a Virtual Private Cloud (VPC) NAT gateway.

Operation description

Before you call this operation, take note of the following items:

The first time you create a NAT gateway, the system automatically creates the service-linked role AliyunServiceRoleForNatgw. Then, the system attaches the permission policy AliyunServiceRolePolicyForNatgw to the role. This allows the NAT gateway to access other resources on Alibaba Cloud. For more information, see Service-linked roles.
After you create an enhanced Internet NAT gateway, a route entry is automatically added to the route table of the VPC. The destination CIDR block of the route entry is 0.0.0.0/0 and the next hop is the NAT gateway. This ensures that traffic is routed to the NAT gateway.
CreateNatGateway is an asynchronous operation. After a request is sent, the system returns a request ID and runs the task in the background. You can call the DescribeNatGateways operation to query the status of the task.
- If a NAT gateway is in the Creating state, the NAT gateway is being created. In this case, you can query the NAT gateway but cannot perform other operations.
- If a NAT gateway is in the Available state, the NAT gateway is created.

It takes 1 to 3 minutes to create a NAT gateway.

You cannot repeatedly call the CreateNatGateway operation within a specific period of time.

Debugging

OpenAPI Explorer automatically calculates the signature value. For your convenience, we recommend that you call this operation in OpenAPI Explorer.

Debug

Authorization information

The following table shows the authorization information corresponding to the API. The authorization information can be used in the Action policy element to grant a RAM user or RAM role the permissions to call this API operation. Description:

Operation: the value that you can use in the Action element to specify the operation on a resource.
Access level: the access level of each operation. The levels are read, write, and list.
Resource type: the type of the resource on which you can authorize the RAM user or the RAM role to perform the operation. Take note of the following items:
- The required resource types are displayed in bold characters.
- If the permissions cannot be granted at the resource level, All Resources is used in the Resource type column of the operation.
Condition Key: the condition key that is defined by the cloud service.
Associated operation: other operations that the RAM user or the RAM role must have permissions to perform to complete the operation. To complete the operation, the RAM user or the RAM role must have the permissions to perform the associated operations.

Operation	Access level	Resource type	Condition key	Associated operation
vpc:CreateNatGateway	create	NatGateway acs:vpc:{#regionId}:{#accountId}:natgateway/*	none	none

Request parameters

Parameter	Type	Required	Description	Example
RegionId	string	Yes	The region ID of the NAT gateway. You can call the DescribeRegions operation to obtain the region ID.	cn-hangzhou
VpcId	string	Yes	The ID of the VPC where you want to create the NAT gateway.	vpc-bp1di7uewzmtvfuq8****
Name	string	No	The name of the NAT gateway. The name must be 2 to 128 characters in length, and can contain letters, digits, underscores (_), and hyphens (-). The name must start with a letter. If this parameter is not set, the system assigns a default name to the NAT gateway.	fortest
Description	string	No	The description of the NAT gateway. You can leave this parameter empty or enter a description. If you enter a description, the description must be 2 to 256 characters in length and cannot start with `http://` or `https://`.	testnat
ClientToken	string	No	The client token that is used to ensure the idempotence of the request. You can use the client to generate the token, but you must make sure that the token is unique among different requests. Note If you do not specify this parameter, the system automatically uses the request ID as the client token. The request ID may be different for each request.	5A2CFF0E-5718-45B5-9D4D-70B3FF3898
Spec	string	No	Subscription Internet NAT gateways are no longer available for purchase. Ignore this parameter.	Invalid parameter.
InstanceChargeType	string	No	The billing method of the NAT gateway. Set the value to PostPaid (pay-as-you-go), which is the default value. For more information, see Internet NAT gateway billing and VPC NAT gateway billing.	PostPaid
PricingCycle	string	No	Subscription Internet NAT gateways are no longer available for purchase. Ignore this parameter.	Invalid parameter.
Duration	string	No	Subscription Internet NAT gateways are no longer available for purchase. Ignore this parameter.	Invalid parameter.
AutoPay	boolean	No	Subscription Internet NAT gateways are no longer available for purchase. Ignore this parameter.	Invalid parameter.
VSwitchId	string	Yes	The ID of the vSwitch to which the NAT gateway is attached. When you create a NAT gateway, you must specify a vSwitch for the NAT gateway. Then, the system assigns an idle private IP address from the vSwitch to the NAT gateway. To attach the NAT gateway to an existing vSwitch, make sure that the zone to which the vSwitch belongs supports NAT gateways. In addition, the vSwitch must have idle IP addresses. If no vSwitch exists in the VPC, create a vSwitch in a zone that supports NAT gateways. Then, specify the vSwitch for the NAT gateway. Note You can call the ListEnhanhcedNatGatewayAvailableZones operation to query zones that support NAT gateways. You can call the DescribeVSwitches operation to query idle IP addresses in a vSwitch.	vsw-bp1e3se98n9fq8hle****
NatType	string	Yes	The type of NAT gateway. Set the value to Enhanced, which specifies enhanced NAT gateway.	Enhanced
InternetChargeType	string	No	The metering method of the NAT gateway. Set the value to PayByLcu, which specifies the pay-by-CU metering method.	PayByLcu
NetworkType	string	No	The network type of the NAT gateway. Valid values: internet: Internet intranet: VPC	internet
SecurityProtectionEnabled`deprecated`	boolean	No	Specifies whether to enable the firewall feature. Valid values: false (default) Notice This parameter is deprecated.	false
IcmpReplyEnabled	boolean	No	Specifies whether to enable ICMP retrieval. Valid values: true (default) false	false
EipBindMode	string	No	The mode in which the EIP is associated with the NAT gateway. Valid values: MULTI_BINDED (default): Multi-EIP-to-ENI mode. NAT: NAT mode. IPv4 gateways are supported in this mode. Note** If a NAT gateway is associated with an EIP in NAT mode, the EIP occupies one private IP address in the vSwitch. Make sure that the vSwitch has sufficient private IP addresses. Otherwise, the NAT gateway fails to be associated with the EIP. In NAT mode, a maximum number of 50 EIPs can be associated with each NAT gateway.	MULTI_BINDED
Tag	array<object>	No	The tags.
	object	No	The list of Tag entries.
Key	string	No	The tag key. The format of Tag.N.Key when you call the operation. Valid values of N: 1 to 20. The tag key cannot be an empty string. The tag key can be up to 128 characters in length, and cannot start with acs: or aliyun. It cannot contain http:// or https://.	TestKey
Value	string	No	The tag value. The format of Tag.N.Value when you call the operation. Valid values of N: 1 to 20. The tag value cannot be an empty string. The tag value can be up to 128 characters in length, and cannot start with acs: or aliyun. It cannot contain http:// or https://.	TestValue

Response parameters

Parameter	Type	Description	Example
	object	The response parameters.
NatGatewayId	string	The ID of the NAT gateway.	ngw-112za33e4****
RequestId	string	The request ID.	2315DEB7-5E92-423A-91F7-4C1EC9AD97C3
ForwardTableIds	array	A list of DNAT entries.
	string	A list of DNAT entries.	ftb-11tc6xgmv****
SnatTableIds	array	A list of SNAT entries.
	string	A list of SNAT entries.	stb-SnatTableIds****
FullNatTableIds	array	A list of FULLNAT entries.
	string	A list of FULLNAT entries.	fulltb-gw88z7hhlv43rmb26****

Examples

Sample success responses

JSONformat

{
  "NatGatewayId": "ngw-112za33e4****",
  "RequestId": "2315DEB7-5E92-423A-91F7-4C1EC9AD97C3",
  "ForwardTableIds": {
    "ForwardTableId": [
      "ftb-11tc6xgmv****"
    ]
  },
  "SnatTableIds": {
    "SnatTableId": [
      "stb-SnatTableIds****"
    ]
  },
  "FullNatTableIds": {
    "FullNatTableId": [
      "fulltb-gw88z7hhlv43rmb26****"
    ]
  }
}

Error codes

HTTP status code	Error code	Error message	Description
400	Forbidden.NatPayBySpec	Pay-by-specification NAT is no longer supported. Newly purchased pay-as-you-go NAT gateways only support the pay-by-CU metering method.	Pay-by-specification NAT gateways are no longer available for purchase. Set InternetChargeType to PayByLcu.
400	UnsupportedFeature.PrivateLink	The feature of %s is not supported.	-
400	DependencyViolation.FullNatEntry	The specified resource of %s depends on %s, so the operation cannot be completed.	-
400	UnsupportedFeature.InternetChargeType	The feature of InternetChargeType is not supported.	-
400	InvalidVPCStatus	vpc incorrect status.	The VPC is in an invalid state.
400	InvalidNatGatewayName.MalFormed	NatGateway name is not valid.	The gateway name is invalid.
400	InvalidNatGatewayDescription.MalFormed	NatGateway description is not valid.	The gateway description is invalid.
400	MissingParameter.BandwidthPackage	only support one BandwidthPackage be created with NatGateway.	You must specify an EIP bandwidth plan.
400	OperationDenied	The user cannot allow to create natgw, please call PD to authorize	-
400	RouterEntryConflict.Duplicated	A route entry already exists, which CIDR is '0.0.0.0/0'	-
400	MissingParameter	Miss mandatory parameter.	Some required parameters are not specified. Specify all required parameters and try again.
400	QuotaExceeded.BandwidthPackageIps	The specified ipCount exceeded quota.	The number of IP addresses has reached the upper limit. Request a quota increase on the Quota Management page.
400	AllocateIpFailed	Alloc bandwidthPackage ips failed, maybe no available ip.	-
400	InvalidParameter.Name.Malformed	The specified Name is not valid.	The specified name format is invalid. Enter the name in the valid format.
400	InvalidParameter.Description.Malformed	The specified Description is not valid.	The specified description is invalid.
400	ZONE_NO_AVAILABLE_IP	The Zone have no available ip.	No IP address is available in the zone.
400	ParameterIllegal	ipCount,bandwidth parameter invalid	-
400	InvalidParameter.BandwidthPackage.n.ISP.ValueNotSupport	The specified ISP of BandwidthPackage is not valid.	The specified ISP of the EIP bandwidth plan is invalid.
400	InvalidNatGatewayId.NotFound	The NatGatewayId not exist.	The value of the NatGatewayId parameter is invalid.
400	VswitchStatusError	The VSwitch is creating .	The operation is not supported when the vSwitch is being created.
400	VpcStatusError	The Vpc is creating .	The VPC is being created.
400	InvalidParameter.Spec.ValueNotSupported	The specified Spec is not valid.	The specification is invalid.
400	TaskConflict	The operation is too frequent, TaskConflict.	The system is unavailable. Try again later.
400	COMMODITY.INVALID_COMPONENT	The instance component is invalid.	-
400	CreateNatGateway.RouteConflict.DynamicRoute	Route conflict exists in routing table.	-
400	OperationUnsupported.MultiNatGateway	More than one natGateway per vpc is unsupported.	-
400	Forbidden.CheckEntryRuleQuota	Route entry quota rule check error.	An error occurred when the system was checking the quota of route entries.
400	OperationFailed.UnpaidBillsExist	The account has unpaid bills. Please pay your overdue bill first.	This account has unpaid orders.
400	IncorrectStatus.RouteEntry	Specified routeEntry status error.	-
400	OperationFailed.RiskControl	Risk control check failed.	The error message returned because your payment method has security risks. Click the link for verification in your email or console message and submit your order after verification.
400	IncorrectStatus.RouteTableStatus	%s	-
400	OperationFailed.TokenVerfiy	Token verify failed.	-
400	%s	%s	-
400	IllegalParam.Name	The specified Name is invalid, shorter than 2 characters.	-
400	OperationFailed.EnhancedQuotaExceed	Enhanced nat gateway per vpc quota is exceeded	-
400	OrderError.NoAvailablePaymentMethod	%s	-
400	OrderError.BasicInfoUncompleted	%s	-
400	OperationUnsupported.EnhancedCURegion	%s	-
400	NoPermission.CreateServiceLinkedRole	You are not authorized to create service linked role	-
400	OperationUnsupported.EnhancedRegion	%s	-
400	OperationFailed.EnhancedInventoryNotEnough	Operation failed because inventory is not enough.	-
400	OperationFailed.VswNotBelongToVpc	Operation failed because the specified VSwitch is not bound to the same VPC with NAT gateway.	The vSwitch and NAT gateway do not belong to the same VPC.
400	OperationFailed.EnhancedUserIsUnAuthorized	Operation failed because the user is not authorized to create an enhanced NAT gateway.	Operation failed because the user is not authorized to create an enhanced NAT gateway.
400	OperationUnsupported.PrePaidPyByLcu	The operation failed because the subscription NAT gateway does not support the pay-by-LCU billing method.	The operation failed because the subscription NAT gateway does not support the pay-by-LCU billing method.
400	OperationFailed.NormalInventoryNotEnough	Standard NAT gateways are no longer offered. You can create enhanced NAT gateways and set the correct natType.	Create an enhanced NAT gateway and ensure that the NatType parameters are configured correctly.
400	OperationFailed.VSwitchNoAvailableIp	Operation failed because the specified vswitch does not have availabe ip.	-
400	OperationFailed.EnhancedCheckInventory	Operation failed because check inventory result is unexpected.	-
400	UnsupportedFeature.IcmpReplyEnabled	The feature of IcmpReplyEnabled is not supported.	The value of IcmpReplyEnabled cannot be modified.
400	UnsupportedFeature.SecurityProtectionEnabled	The feature of SecurityProtectionEnabled is not supported.	-
400	OperationFailed.RegionConvert	Operation failed because do not find region info.	-
400	OperationFailed.EnhancedUserIsUnAuthorized	Operation failed because user is unauthorized service account.	-
400	UnsupportedFeature.VpcNat	The feature of VpcNat is not supported.	-
400	InvalidVSWITCHID.NotFound	The specified resource of %s is not found.	-
400	Forbidden.OperateShareResource	Operate share resource is forbidden.	-
400	IncorrectStatus.VSWITCH	The status of VSWITCH is incorrect.	-
400	OperationFailed.VpcNatGatewayInventoryNotEnough	The operation is failed because of inventory is not enough.	-
400	OperationFailed.VpcNatGatewayCheckInventory	The operation is failed because of check inventory result is unexpected	-
400	ExclusiveParam.%sAnd%s	The param of %s and %s are mutually exclusive.	You cannot specify %s and %s at the same time.
400	SecurityGroupType.NotSupported	The specified security group type is not supported.	The security group is already hosted and cannot be used.
400	SecurityGroup.NotExist	The specified security group is not exist.	The security group does not exist in this VPC.
404	InvalidRegionId.NotFound	The specified RegionId does not exist in our records.	The specified region ID does not exist.
404	InvalidVpcId.NotFound	Specified value of VpcId is not found in our record.	The VPC does not exist. Check whether the specified VPC is valid.
404	InvalidZoneId.NotFound	Specified value of ZoneId is not exists.	The specified zone does not exist.
404	InvalidZoneId.NotFound	Can not find ZoneId for allocated ip.	The zone of the specified IP address is invalid.
404	VPC_ONLY_CAN_CREATE_ONE_NAT_GATEWAY	NatGateway in one vpc support only one.	-
404	OperationFailed.CrateEntryTimeOut	Operation failed because create custom routeEntry timeout.	-
404	Forbidden.CreateSpecialSpecNatGateway	You are not authorized to create special spec nat gateway.	-
404	UnsupportedZoneForFwNat	The zone is unsupported for FW NAT.	-
500	OrderError.NatGateway	The Account failed to create order.	-
500	OperationFailed.NoAvailableResource	The Zone have no available resource.	No resources are available in the region.

For a list of error codes, visit the Service error codes.

Change history

Change time	Summary of changes	Operation
2024-08-15	The Error code has changed	View Change Details
2024-05-06	The Error code has changed	View Change Details
2024-01-18	The Error code has changed	View Change Details
2023-12-14	API Description Update. The Error code has changed	View Change Details
2023-06-30	The Error code has changed	View Change Details
2023-03-01	The Error code has changed	View Change Details
2023-01-10	The Error code has changed. The request parameters of the API has changed	View Change Details
2022-08-12	The Error code has changed	View Change Details
2022-08-03	The Error code has changed	View Change Details
2022-07-22	The Error code has changed	View Change Details