NAT Gateway

IAM provides system-defined identity policies to define common actions supported by cloud services. You can also create custom identity policies using the actions supported by cloud services for more refined access control.

In addition to IAM, the Organizations service also provides Service Control Policies (SCPs) to set access control policies.

SCPs do not actually grant any permissions to an entity. They only set the permissions boundary for the entity. When SCPs are attached to an organizational unit (OU) or a member account, the SCPs do not directly grant permissions to that OU or member account. Instead, the SCPs only determine what permissions are available for that member account or those member accounts under that OU. The granted permissions can be applied only if they are allowed by the SCPs.

To learn more about how IAM is different from Organizations for access control, see How IAM Is Different from Organizations for Access Control?.

This section describes the elements used by IAM custom identity policies and Organizations SCPs. The elements include actions, resources, and conditions.

For details about how to use these elements to edit an IAM custom identity policy, see Creating a Custom Identity Policy.
For details about how to use these elements to edit a custom SCP, see Creating an SCP.

Actions

Actions are specific operations that are allowed or denied in an identity policy.

The Access Level column describes how the action is classified (List, Read, or Write). This classification helps you understand the level of access that an action grants when you use it in an identity policy.
The Resource Type column indicates whether the action supports resource-level permissions.
- You can use a wildcard (*) to indicate all resource types. If this column is empty (-), the action does not support resource-level permissions and you must specify all resources ("*") in your identity policy statements.
- If this column includes a resource type, you must specify the URN in the Resource element of your identity policy statements.
- Required resources are marked with asterisks (*) in the table. If you specify a resource in a statement using this action, then it must be of this type.
For details about the resource types defined by NAT, see Resources.
The Condition Key column contains keys that you can specify in the Condition element of an identity policy statement.
- If the Resource Type column has values for an action, the condition key takes effect only for the listed resource types.
- If the Resource Type column is empty (-) for an action, the condition key takes effect for all resources that action supports.
- If the Condition Key column is empty (-) for an action, the action does not support any condition keys.
For details about the condition keys defined by NAT, see Conditions.
The Alias column lists the policy actions that are configured in identity policies. With these actions, you can use APIs for policy-based authorization. For details, see Policies and Identity Policies.

The following table lists the actions that you can define in identity policy statements for NAT.

**Table 1** Actions supported by NAT
Action	Description	Access Level	Resource Type (*: required)	Condition Key	Alias
nat:privateNatGateways:list	Grants permission to query private NAT gateways.	List	privateGateway *	g:EnterpriseProjectId	-
nat:privateNatGateways:create	Grants permission to create a private NAT gateway.	Write	privateGateway *	-	-
			subnet *	-
			-	g:EnterpriseProjectId g:RequestTag/<tag-key> g:TagKeys
nat:privateNatGateways:delete	Grants permission to delete a specified private NAT gateway.	Write	privateGateway *	g:EnterpriseProjectId g:ResourceTag/<tag-key>	-
nat:privateNatGateways:get	Grants permission to query a specified private NAT gateway.	Read	privateGateway *	g:EnterpriseProjectId g:ResourceTag/<tag-key>	-
nat:privateNatGateways:update	Grants permission to update a specified private NAT gateway.	Write	privateGateway *	g:EnterpriseProjectId g:ResourceTag/<tag-key>	-
nat:privateNatDnatRules:list	Grants permission to query DNAT rules of private NAT gateways.	List	privateDnatRule *	g:EnterpriseProjectId	-
nat:privateNatDnatRules:create	Grants permission to create a DNAT rule for a private NAT gateway.	Write	privateGateway *	g:ResourceTag/<tag-key>	-
			privateDnatRule *	-
			privateTransitIp *	g:ResourceTag/<tag-key>
			port	-
			-	g:EnterpriseProjectId
nat:privateNatDnatRules:delete	Grants permission to delete a specified DNAT rule of a private NAT gateway.	Write	privateGateway *	g:EnterpriseProjectId g:ResourceTag/<tag-key>	-
nat:privateNatDnatRules:delete		Write	privateDnatRule *	g:EnterpriseProjectId	-
nat:privateNatDnatRules:get	Grants permission to query a specified DNAT rule of a private NAT gateway.	Read	privateGateway *	g:EnterpriseProjectId g:ResourceTag/<tag-key>	-
nat:privateNatDnatRules:get		Read	privateDnatRule *	g:EnterpriseProjectId	-
nat:privateNatDnatRules:update	Grants permission to update a specified DNAT rule of a private NAT gateway.	Write	privateGateway *	g:ResourceTag/<tag-key>	-
			privateDnatRule *	-
			privateTransitIp	g:ResourceTag/<tag-key>
			port	-
			-	g:EnterpriseProjectId
nat:privateNatSnatRules:list	Grants permission to query SNAT rules of private NAT gateways.	List	privateSnatRule *	g:EnterpriseProjectId	-
nat:privateNatSnatRules:create	Grants permission to create an SNAT rule for a private NAT gateway.	Write	privateGateway *	g:ResourceTag/<tag-key>	-
			privateSnatRule *	-
			privateTransitIp *	g:ResourceTag/<tag-key>
			subnet	-
			-	g:EnterpriseProjectId
nat:privateNatSnatRules:delete	Grants permission to delete a specified SNAT rule of a private NAT gateway.	Write	privateGateway *	g:EnterpriseProjectId g:ResourceTag/<tag-key>	-
nat:privateNatSnatRules:delete		Write	privateSnatRule *	g:EnterpriseProjectId	-
nat:privateNatSnatRules:get	Grants permission to query a specified SNAT rule of a private NAT gateway.	Read	privateGateway *	g:EnterpriseProjectId g:ResourceTag/<tag-key>	-
nat:privateNatSnatRules:get		Read	privateSnatRule *	g:EnterpriseProjectId	-
nat:privateNatSnatRules:update	Grants permission to update a specified SNAT rule of a private NAT gateway.	Write	privateGateway *	g:ResourceTag/<tag-key>	-
			privateSnatRule *	-
			privateTransitIp	g:ResourceTag/<tag-key>
			-	g:EnterpriseProjectId
nat:privateNatTransitIps:list	Grants permission to query private NAT transit IP addresses.	List	privateTransitIp *	g:EnterpriseProjectId	nat:transitIps:list
nat:privateNatTransitIps:create	Grants permission to create a private NAT transit IP address.	Write	privateTransitIp *	-	nat:transitIps:create
			subnet	g:ResourceTag/<tag-key>
			-	g:EnterpriseProjectId g:RequestTag/<tag-key> g:TagKeys
nat:privateNatTransitIps:delete	Grants permission to delete a specified private NAT transit IP address.	Write	privateTransitIp *	g:EnterpriseProjectId g:ResourceTag/<tag-key>	nat:transitIps:delete
nat:privateNatTransitIps:get	Grants permission to query a specified private NAT transit IP address.	Read	privateTransitIp *	g:EnterpriseProjectId g:ResourceTag/<tag-key>	nat:transitIps:get
nat:transitSubnets:list	Grants permission to query transit subnets.	List	transitSubnet *	-	-
nat:transitSubnets:create	Grants permission to create a transit subnet.	Write	transitSubnet *	-	-
			subnet *	-
			-	g:RequestTag/<tag-key> g:TagKeys
nat:transitSubnets:delete	Grants permission to delete a specified transit subnet.	Write	transitSubnet *	g:ResourceTag/<tag-key>	-
nat:transitSubnets:get	Grants permission to query a specified transit subnet.	Read	transitSubnet *	g:ResourceTag/<tag-key>	-
nat:transitSubnets:update	Grants permission to update a specified transit subnet.	Write	transitSubnet *	g:ResourceTag/<tag-key>	-
nat:privateNatGateways:createTags	Grants permission to create tags for a specified private NAT gateway.	Tagging	privateGateway *	g:ResourceTag/<tag-key> g:EnterpriseProjectId	nat:privateNatGatewayTags:create
nat:privateNatGateways:createTags		Tagging	-	g:RequestTag/<tag-key> g:TagKeys	nat:privateNatGatewayTags:create
nat:privateNatGateways:deleteTags	Grants permission to delete tags of a specified private NAT gateway.	Tagging	privateGateway *	g:ResourceTag/<tag-key> g:EnterpriseProjectId	nat:privateNatGatewayTags:delete
nat:privateNatGateways:deleteTags		Tagging	-	g:RequestTag/<tag-key> g:TagKeys	nat:privateNatGatewayTags:delete
nat:privateNatGateways:listTags	Grants permission to query tags of private NAT gateways.	List	privateGateway	g:ResourceTag/<tag-key> g:EnterpriseProjectId	nat:privateNatGatewayTags:list
nat:privateNatTransitIps:createTags	Grants permission to create tags for a specified private NAT transit IP address.	Tagging	privateTransitIp *	g:EnterpriseProjectId g:ResourceTag/<tag-key>	nat:transitIpTags:create
nat:privateNatTransitIps:createTags		Tagging	-	g:RequestTag/<tag-key> g:TagKeys	nat:transitIpTags:create
nat:privateNatTransitIps:deleteTags	Grants permission to delete tags of a specified private NAT transit IP address.	Tagging	privateTransitIp *	g:EnterpriseProjectId g:ResourceTag/<tag-key>	nat:transitIpTags:delete
nat:privateNatTransitIps:deleteTags		Tagging	-	g:RequestTag/<tag-key> g:TagKeys	nat:transitIpTags:delete
nat:privateNatTransitIps:listTags	Grants permission to query tags of private NAT transit IP addresses.	List	privateTransitIp	g:ResourceTag/<tag-key> g:EnterpriseProjectId	nat:transitIpTags:list
nat:transitSubnets:createTags	Grants permission to create tags for a specified transit subnet.	Tagging	transitSubnet *	g:ResourceTag/<tag-key>	nat:transitSubnetTags:create
nat:transitSubnets:createTags		Tagging	-	g:RequestTag/<tag-key> g:TagKeys	nat:transitSubnetTags:create
nat:transitSubnets:deleteTags	Grants permission to delete tags of a specified transit subnet.	Tagging	transitSubnet *	g:ResourceTag/<tag-key>	nat:transitSubnetTags:delete
nat:transitSubnets:deleteTags		Tagging	-	g:RequestTag/<tag-key> g:TagKeys	nat:transitSubnetTags:delete
nat:transitSubnets:listTags	Grants permission to query tags of transit subnets.	List	transitSubnet	g:ResourceTag/<tag-key>	nat:transitSubnetTags:list
nat:natGateways:list	Grants permission to query public NAT gateways.	List	gateway *	g:EnterpriseProjectId	-
nat:natGateways:create	Grants permission to create a public NAT gateway.	Write	gateway *	-	-
			vpc *	-
			subnet *	-
			-	g:EnterpriseProjectId g:RequestTag/<tag-key> g:TagKeys
nat:natGateways:delete	Grants permission to delete a specified public NAT gateway.	Write	gateway *	g:EnterpriseProjectId g:ResourceTag/<tag-key>	-
nat:natGateways:get	Grants permission to query a specified public NAT gateway.	Read	gateway *	g:EnterpriseProjectId g:ResourceTag/<tag-key>	-
nat:natGateways:update	Grants permission to update a specified public NAT gateway.	Write	gateway *	g:EnterpriseProjectId g:ResourceTag/<tag-key>	-
nat:dnatRules:list	Grants permission to query DNAT rules of public NAT gateways.	List	dnatRule *	g:EnterpriseProjectId	-
nat:dnatRules:create	Grants permission to create a DNAT rule for a public NAT gateway.	Write	gateway *	g:ResourceTag/<tag-key>	-
			dnatRule *	-
			publicip	-
			globalEip	-
			port	-
			-	g:EnterpriseProjectId
nat:dnatRules:get	Grants permission to query a specified DNAT rule of a public NAT gateway.	Read	gateway *	g:EnterpriseProjectId g:ResourceTag/<tag-key>	-
nat:dnatRules:get		Read	dnatRule *	g:EnterpriseProjectId	-
nat:dnatRules:update	Grants permission to update a specified DNAT rule of a public NAT gateway.	Write	gateway *	g:ResourceTag/<tag-key>	-
			dnatRule *	-
			publicip	-
			globalEip	-
			port	-
			-	g:EnterpriseProjectId
nat:dnatRules:delete	Grants permission to delete a specified DNAT rule of a private NAT gateway.	Write	gateway *	g:EnterpriseProjectId g:ResourceTag/<tag-key>	-
nat:dnatRules:delete		Write	dnatRule *	g:EnterpriseProjectId	-
nat:snatRules:list	Grants permission to query SNAT rules of public NAT gateways.	List	snatRule *	g:EnterpriseProjectId	-
nat:snatRules:create	Grants permission to create a SNAT rule for a public NAT gateway.	Write	gateway *	g:ResourceTag/<tag-key>	-
			snatRule *	-
			publicip	-
			globalEip	-
			subnet	-
			-	g:EnterpriseProjectId
nat:snatRules:get	Grants permission to query a specified SNAT rule of a public NAT gateway.	Read	gateway *	g:EnterpriseProjectId g:ResourceTag/<tag-key>	-
nat:snatRules:get		Read	snatRule *	g:EnterpriseProjectId	-
nat:snatRules:update	Grants permission to update a specified SNAT rule of a public NAT gateway.	Write	gateway *	g:ResourceTag/<tag-key>	-
			snatRule *	-
			publicip	-
			globalEip	-
			-	g:EnterpriseProjectId
nat:snatRules:delete	Grants permission to delete a specified SNAT rule of a private NAT gateway.	Write	gateway *	g:EnterpriseProjectId g:ResourceTag/<tag-key>	-
nat:snatRules:delete		Write	snatRule *	g:EnterpriseProjectId	-
nat:natGateways:createTags	Grants permission to create tags for a specified public NAT gateway.	Tagging	gateway *	g:EnterpriseProjectId g:ResourceTag/<tag-key>	nat:natGatewayTags:create
nat:natGateways:createTags		Tagging	-	g:RequestTag/<tag-key> g:TagKeys	nat:natGatewayTags:create
nat:natGateways:deleteTags	Grants permission to delete tags of a specified public NAT gateway.	Tagging	gateway *	g:EnterpriseProjectId g:ResourceTag/<tag-key>	nat:natGatewayTags:delete
nat:natGateways:deleteTags		Tagging	-	g:RequestTag/<tag-key> g:TagKeys	nat:natGatewayTags:delete
nat:natGateways:listTags	Grants permission to query tags of public NAT gateways.	List	gateway	g:ResourceTag/<tag-key> g:EnterpriseProjectId	nat:natGatewayTags:get

Each API of NAT usually supports one or more actions. Table 2 lists the supported actions and dependencies.

**Table 2** Actions and dependencies supported by NAT APIs
API	Action	Dependencies
GET /v3/{project_id}/private-nat/gateways	nat:privateNatGateways:list	-
POST /v3/{project_id}/private-nat/gateways	nat:privateNatGateways:create	-
DELETE /v3/{project_id}/private-nat/gateways/{gateway_id}	nat:privateNatGateways:delete	-
GET /v3/{project_id}/private-nat/gateways/{gateway_id}	nat:privateNatGateways:get	-
PUT /v3/{project_id}/private-nat/gateways/{gateway_id}	nat:privateNatGateways:update	-
GET /v3/{project_id}/private-nat/dnat-rules	nat:privateNatDnatRules:list	-
POST /v3/{project_id}/private-nat/dnat-rules	nat:privateNatDnatRules:create	-
DELETE /v3/{project_id}/private-nat/dnat-rules/{dnat_rule_id}	nat:privateNatDnatRules:delete	-
GET /v3/{project_id}/private-nat/dnat-rules/{dnat_rule_id}	nat:privateNatDnatRules:get	-
PUT /v3/{project_id}/private-nat/dnat-rules/{dnat_rule_id}	nat:privateNatDnatRules:update	-
GET /v3/{project_id}/private-nat/snat-rules	nat:privateNatSnatRules:list	-
POST /v3/{project_id}/private-nat/snat-rules	nat:privateNatSnatRules:create	-
DELETE /v3/{project_id}/private-nat/snat-rules/{snat_rule_id}	nat:privateNatSnatRules:delete	-
GET /v3/{project_id}/private-nat/snat-rules/{snat_rule_id}	nat:privateNatSnatRules:get	-
PUT /v3/{project_id}/private-nat/snat-rules/{snat_rule_id}	nat:privateNatSnatRules:update	-
GET /v3/{project_id}/private-nat/transit-ips	nat:privateNatTransitIps:list	-
POST /v3/{project_id}/private-nat/transit-ips	nat:privateNatTransitIps:create	-
DELETE /v3/{project_id}/private-nat/transit-ips/{transit_ip_id}	nat:privateNatTransitIps:delete	-
GET /v3/{project_id}/private-nat/transit-ips/{transit_ip_id}	nat:privateNatTransitIps:get	-
POST /v3/{project_id}/private-nat-gateways/resource_instances/action	nat:privateNatGateways:listTags	-
POST /v3/{project_id}/private-nat-gateways/{resource_id}/tags/action	nat:privateNatGateways:createTags	nat:privateNatGateways:deleteTags
POST /v3/{project_id}/private-nat-gateways/{resource_id}/tags	nat:privateNatGateways:createTags	-
GET /v3/{project_id}/private-nat-gateways/{resource_id}/tags	nat:privateNatGateways:listTags	-
DELETE /v3/{project_id}/private-nat-gateways/{resource_id}/tags/{key}	nat:privateNatGateways:deleteTags	-
GET /v3/{project_id}/private-nat-gateways/tags	nat:privateNatGateways:listTags	-
POST /v3/{project_id}/transit-ips/resource_instances/action	nat:privateNatTransitIps:listTags	-
POST /v3/{project_id}/transit-ips/{resource_id}/tags/action	nat:privateNatTransitIps:createTags	nat:privateNatTransitIps:deleteTags
POST /v3/{project_id}/transit-ips/{resource_id}/tags	nat:privateNatTransitIps:createTags	-
GET /v3/{project_id}/transit-ips/{resource_id}/tags	nat:privateNatTransitIps:listTags	-
DELETE /v3/{project_id}/transit-ips/{resource_id}/tags/{key}	nat:privateNatTransitIps:deleteTags	-
GET /v3/{project_id}/transit-ips/tags	nat:privateNatTransitIps:listTags	-
POST /v3/{project_id}/private-nat/transit-subnets	nat:transitSubnets:create	-
DELETE /v3/{project_id}/private-nat/transit-subnets/{transit_subnet_id}	nat:transitSubnets:delete	-
GET /v3/{project_id}/private-nat/transit-subnets/{transit_subnet_id}	nat:transitSubnets:get	-
PUT /v3/{project_id}/private-nat/transit-subnets/{transit_subnet_id}	nat:transitSubnets:update	-
POST /v3/{project_id}/transit-subnets/resource_instances/action	nat:transitSubnets:listTags	-
POST /v3/{project_id}/transit-subnets/{resource_id}/tags/action	nat:transitSubnets:createTags	nat:transitSubnets:deleteTags
POST /v3/{project_id}/transit-subnets/{resource_id}/tags	nat:transitSubnets:createTags	-
GET /v3/{project_id}/transit-subnets/{resource_id}/tags	nat:transitSubnets:listTags	-
DELETE /v3/{project_id}/transit-subnets/{resource_id}/tags/{key}	nat:transitSubnets:deleteTags	-
GET /v3/{project_id}/transit-subnets/tags	nat:transitSubnets:listTags	-
GET /v2/{project_id}/nat_gateways	nat:natGateways:list	-
POST /v2/{project_id}/nat_gateways	nat:natGateways:create	-
DELETE /v2/{project_id}/nat_gateways/{nat_gateway_id}	nat:natGateways:delete	-
GET /v2/{project_id}/nat_gateways/{nat_gateway_id}	nat:natGateways:get	-
PUT /v2/{project_id}/nat_gateways/{nat_gateway_id}	nat:natGateways:update	-
GET /v2/{project_id}/dnat_rules	nat:dnatRules:list	-
POST /v2/{project_id}/dnat_rules	nat:dnatRules:create	eip:publicIps:associateInstance
GET /v2/{project_id}/dnat_rules/{dnat_rule_id}	nat:dnatRules:get	-
PUT /v2/{project_id}/dnat_rules/{dnat_rule_id}	nat:dnatRules:update	eip:publicIps:associateInstance eip:publicIps:disassociateInstance
POST /v2/{project_id}/dnat_rules/batch	nat:dnatRules:create	eip:publicIps:associateInstance
DELETE /v2/{project_id}/nat_gateways/{nat_gateway_id}/dnat_rules/{dnat_rule_id}	nat:dnatRules:delete	eip:publicIps:disassociateInstance
GET /v2/{project_id}/snat_rules	nat:snatRules:list	-
POST /v2/{project_id}/snat_rules	nat:snatRules:create	eip:publicIps:associateInstance
GET /v2/{project_id}/snat_rules/{snat_rule_id}	nat:snatRules:get	-
PUT /v2/{project_id}/snat_rules/{snat_rule_id}	nat:snatRules:update	eip:publicIps:associateInstance eip:publicIps:disassociateInstance
DELETE /v2/{project_id}/nat_gateways/{nat_gateway_id}/snat_rules/{snat_rule_id}	nat:snatRules:delete	eip:publicIps:disassociateInstance
POST /v3/{project_id}/nat_gateways/resource_instances/action	nat:natGateways:listTags	-
POST /v3/{project_id}/nat_gateways/{nat_gateway_id}/tags/action	nat:natGateways:createTags	nat:natGateways:deleteTags
POST /v3/{project_id}/nat_gateways/{nat_gateway_id}/tags	nat:natGateways:createTags	-
GET /v3/{project_id}/nat_gateways/{nat_gateway_id}/tags	nat:natGateways:listTags	-
DELETE /v3/{project_id}/nat_gateways/{nat_gateway_id}/tags/{key}	nat:natGateways:deleteTags	-
GET /v3/{project_id}/nat_gateways/tags	nat:natGateways:listTags	-

Resources

A resource type indicates the resources that an identity policy applies to. If you specify a resource type for any action in Table 3, the resource URN must be specified in the identity policy statements using that action, and the identity policy applies only to resources of this type. If no resource type is specified, the Resource element is marked with an asterisk (*) and the identity policy applies to all resources. You can also set condition keys in an identity policy to define resource types.

The following table lists the resource types that you can define in identity policy statements for NAT.

**Table 3** Resource types supported by NAT
Resource Type	URN
snatRule	nat:<region>:<account-id>:snatRule:<snat-rule-id>
privateSnatRule	nat:<region>:<account-id>:privateSnatRule:<private-snat-rule-id>
port	vpc:<region>:<account-id>:port:<port-id>
privateGateway	nat:<region>:<account-id>:privateGateway:<private-gateway-id>
vpc	vpc:<region>:<account-id>:vpc:<vpc-id>
publicip	vpc:<region>:<account-id>:publicip:<publicip-id>
gateway	nat:<region>:<account-id>:gateway:<gateway-id>
privateTransitIp	nat:<region>:<account-id>:privateTransitIp:<private-transit-ip-id>
dnatRule	nat:<region>:<account-id>:dnatRule:<dnat-rule-id>
globalEip	eip:<region>:<account-id>:globalEip:<geip-id>
privateDnatRule	nat:<region>:<account-id>:privateDnatRule:<private-dnat-rule-id>
subnet	vpc:<region>:<account-id>:subnet:<subnet-id>
transitSubnet	nat:<region>:<account-id>:transitSubnet:<transit-subnet-id>

Conditions

NAT does not support service-specific condition keys in identity policies.It can only use global condition keys applicable to all services. For details, see Global Condition Keys.

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