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Cloud Firewall:DescribeNatFirewallPolicyPriorUsed

Last Updated:Oct 14, 2025

Queries the used priority range of access control policies for a NAT firewall.

Operation description

This operation queries the used priority range of access control policies for outbound traffic in a NAT firewall.

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RAM authorization

No authorization for this operation. If you encounter issues with this operation, contact technical support.

Request parameters

Parameter

Type

Required

Description

Example

Lang

string

No

The language of the request and response. Valid values:

  • zh (default): Chinese.

  • en: English.

zh

NatGatewayId

string

Yes

The ID of the NAT Gateway.

ngw-xxxxxx

Direction

string

Yes

The traffic direction of the access control policy.

Valid value:

  • out: outbound traffic.

out

IpVersion

string

No

The IP version. Valid value:

  • 4 (default): IPv4

4

Response elements

Element

Type

Description

Example

object

End

integer

The lowest priority of the access control policy.

28

Start

integer

The highest priority of the access control policy.

1

RequestId

string

The ID of the request.

BCDF3907-1011-5504-B015-CC7603C0E6B6

Examples

Success response

JSON format

{
  "End": 28,
  "Start": 1,
  "RequestId": "BCDF3907-1011-5504-B015-CC7603C0E6B6"
}

Error codes

HTTP status code

Error code

Error message

Description

400 ErrorParametersUid The aliUid parameter is invalid. The aliUid parameter is invalid.
400 ErrorDBSelect An error occurred while querying database. An error occurred while querying database.
400 ErrorParametersAppId The AppId parameter is incorrect. The AppId parameter is invalid.
400 ErrorParametersNatGatewayId Invalid parameters NatGatewayId. The request parameter NatGatewayId is invalid or does not exist.
400 ErrorUUIDNew The UUID is invalid. The UUID is invalid.
400 ErrorParameterIpVersion The IP version is invalid. The IP version is invalid.
400 ErrorParametersDirection The direction is invalid. The direction is invalid.
400 ErrorParametersSource The source is invalid. The source is invalid.
400 ErrorDomainResolve An error occurred while resolving the domain. An error occurred while resolving the domain.
400 ErrorParametersDestination The Destination parameter is invalid. The Destination parameter is invalid.
400 ErrorParametersProto The protocol is invalid. The protocol is invalid.
400 ErrorParametersDestPort The dst_port is invalid. The dst_port is invalid.
400 ErrorParametersAction The action is invalid. The action is invalid.
400 ErrorParameters Parameters error. Parameter error.
400 ErrorParametersPageSizeOrNo Either pageSize or pageNo is invalid. Either pageSize or pageNo is invalid.
400 ErrorMarshalJSON An error occurred while encoding JSON. An error occurred while encoding JSON.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.