Updated on 2025-07-04 GMT+08:00

Querying Public NAT Gateways

Function

This API is used to query public NAT gateways.

Constraints

You can type the question mark (?) and ampersand (&) at the end of the URI to define multiple search criteria. All optional parameters can be filtered. For details, see the example request.

Calling Method

For details, see Calling APIs.

URI

GET /v2/{project_id}/nat_gateways

Table 1 Path Parameters

Parameter

Mandatory

Type

Description

project_id

Yes

String

Specifies the project ID.

Table 2 Query Parameters

Parameter

Mandatory

Type

Description

tenant_id

No

String

Specifies the project ID.

id

No

String

Specifies the public NAT gateway ID.

enterprise_project_id

No

String

Specifies the ID of the enterprise project associated with the public NAT gateway when the gateway is created.

description

No

String

Provides supplementary information about the public NAT gateway. The description can contain up to 255 characters and cannot contain angle brackets (<>).

created_at

No

Datetime

Specifies when the public NAT gateway was created. It is a UTC time in yyyy-mm-ddThh:mm:ssZ format.

name

No

String

Specifies the public NAT gateway name. You can enter up to 64 characters.

Only digits, letters, underscores (_), and hyphens (-) are allowed.

status

No

Array of strings

Specifies the public NAT gateway status.

The value can be:

  • ACTIVE: The public NAT gateway is available.

  • PENDING_CREATE: The public NAT gateway is being created.

  • PENDING_UPDATE: The public NAT gateway is being updated.

  • PENDING_DELETE: The public NAT gateway is being deleted.

  • INACTIVE: The public NAT gateway is unavailable.

spec

No

Array of strings

Specifies the public NAT gateway specifications.

The value can be:

  • 1: small, which supports up to 10,000 SNAT connections.

  • 2: medium, which supports up to 50,000 SNAT connections.

  • 3: large, which supports up to 200,000 SNAT connections.

  • 4: extra large, which supports up to 1,000,000 SNAT connections.

admin_state_up

No

Boolean

Specifies whether the public NAT gateway is frozen.

The value can be:

  • true: The public NAT gateway is unfrozen.

  • false: The public NAT gateway is frozen.

internal_network_id

No

String

Specifies the network ID of the downstream interface (the next hop of DVR) of the public NAT gateway. DVR is Distributed Virtual Routing.

router_id

No

String

Specifies the VPC ID.

limit

No

Integer

Specifies the number of records displayed on each page.

Value range: 1 to 2000

Default value: 2000

marker

No

String

Specifies a resource ID for pagination query, indicating that the query starts from the next record of the specified resource ID.

  • If parameters marker and limit are not specified, all resource records (2,000 by default) on the first page will be returned.

  • If marker is not specified and limit is set to 10, the first to tenth resource records will be returned.

  • If marker is set to the resource ID of the tenth record and limit is set to 10, the 11th to 20th resource records will be returned.

  • If marker is set to the resource ID of the tenth record and limit is not specified, the 11th and subsequent resource records (2,000 by default) will be returned.

sort_key

No

String

Specifies the key used during sorting.

sort_dir

No

String

Specifies the sorting order of returned results, which can be asc (ascending order) or desc (descending order).

Request Parameters

Table 3 Request header parameters

Parameter

Mandatory

Type

Description

X-Auth-Token

Yes

String

Specifies the user token.

It is a response to the API for obtaining a user token. This API is the only one that does not require authentication.

The value of X-Subject-Token in the response header is the token value.

Response Parameters

Status code: 200

Table 4 Response body parameters

Parameter

Type

Description

nat_gateways

Array of NatGatewayResponseBody objects

Specifies the response body for querying public NAT gateways.

For details, see the NatGateway description.

Table 5 NatGatewayResponseBody

Parameter

Type

Description

id

String

Specifies the public NAT gateway ID.

tenant_id

String

Specifies the project ID.

name

String

Specifies the public NAT gateway name. You can enter up to 64 characters.

description

String

Provides supplementary information about the public NAT gateway. The description can contain up to 255 characters and cannot contain angle brackets (<>).

spec

String

Specifies the public NAT gateway specifications.

The value can be:

  • 1: small, which supports up to 10,000 SNAT connections.

  • 2: medium, which supports up to 50,000 SNAT connections.

  • 3: large, which supports up to 200,000 SNAT connections.

  • 4: extra large, which supports up to 1,000,000 SNAT connections.

status

String

Specifies the public NAT gateway status.

The value can be:

  • ACTIVE: The public NAT gateway is available.

  • PENDING_CREATE: The public NAT gateway is being created.

  • PENDING_UPDATE: The public NAT gateway is being updated.

  • PENDING_DELETE: The public NAT gateway is being deleted.

  • INACTIVE: The public NAT gateway is unavailable.

admin_state_up

Boolean

Specifies whether the public NAT gateway is frozen.

The value can be:

  • true: The public NAT gateway is unfrozen.

  • false: The public NAT gateway is frozen.

created_at

Datetime

Specifies when the public NAT gateway was created. It is a UTC time in yyyy-mm-ddThh:mm:ssZ format.

router_id

String

Specifies the VPC ID.

internal_network_id

String

Specifies the network ID of the downstream interface (the next hop of DVR) of the public NAT gateway. DVR is Distributed Virtual Routing.

enterprise_project_id

String

Specifies the ID of the enterprise project associated with the public NAT gateway when the gateway is created.

session_conf

SessionConfiguration object

Specifies the session parameters for the public NAT gateway.

ngport_ip_address

String

Specifies the private IP address of the public NAT gateway, which is assigned by the VPC subnet.

billing_info

String

Specifies the order information. This parameter is available only when you buy a yearly/monthly resource. This parameter is left blank when your buy a pay-per-use resource.

dnat_rules_limit

Long

Specifies the maximum number of DNAT rules on a public NAT gateway. The default value is 200.

snat_rule_public_ip_limit

Integer

Specifies the maximum number of EIPs in an SNAT rule on a public NAT gateway. The default value is 20.

pps_max

Integer

Specifies the maximum number of data packets that can be received or sent by a NAT gateway per second, indicating its traffic handling capacity.

bps_max

Integer

Specifies the maximum amount of data that can be transmitted over the public NAT gateway per second. Unit: Mbit/s

Table 6 SessionConfiguration

Parameter

Type

Description

tcp_session_expire_time

Integer

Specifies the TCP session duration. Unit: second

udp_session_expire_time

Integer

Specifies the UDP session duration. Unit: second

icmp_session_expire_time

Integer

Specifies the ICMP session duration. Unit: second

tcp_time_wait_time

Integer

Specifies how long the side that actively closed the TCP connection is in the TIME_WAIT state. Unit: second

Example Requests

GET https://{NAT_endpoint}/v2/27e25061336f4af590faeabeb7fcd9a3/nat_gateways?status=ACTIVE

  

Example Responses

Status code: 200

Query operation succeeded.

{
  "nat_gateways" : [ {
    "id" : "a253be25-ae7c-4013-978b-3c0785eccd63",
    "router_id" : "b1d81744-5165-48b8-916e-e56626feb88f",
    "status" : "ACTIVE",
    "description" : "nat01",
    "admin_state_up" : true,
    "tenant_id" : "27e25061336f4af590faeabeb7fcd9a3",
    "created_at" : "2017-11-15 14:50:39.505112",
    "spec" : "2",
    "internal_network_id" : "5930796a-6026-4d8b-8790-6c6bfc9f87e8",
    "name" : "wj3",
    "enterprise_project_id" : "0aad99bc-f5f6-4f78-8404-c598d76b0ed2",
    "billing_info" : null,
    "dnat_rules_limit" : 200,
    "snat_rule_public_ip_limit" : 20,
    "ngport_ip_address" : "192.168.0.138",
    "session_conf" : {
      "tcp_session_expire_time" : 900,
      "udp_session_expire_time" : 300,
      "icmp_session_expire_time" : 10,
      "tcp_time_wait_time" : 5
    }
  }, {
    "id" : "e824f1b4-4290-4ebc-8322-cfff370dbd1e",
    "router_id" : "305dc52f-13dd-429b-a2d4-444a1039ba0b",
    "status" : "ACTIVE",
    "description" : "1234",
    "admin_state_up" : true,
    "tenant_id" : "27e25061336f4af590faeabeb7fcd9a3",
    "created_at" : "2017-11-17 07:41:07.538062",
    "spec" : "2",
    "internal_network_id" : "fc09463b-4ef8-4c7a-93c8-92d9ca6daf9d",
    "name" : "lyl001",
    "enterprise_project_id" : "0",
    "billing_info" : null,
    "dnat_rules_limit" : 200,
    "snat_rule_public_ip_limit" : 20,
    "ngport_ip_address" : "192.168.5.210",
    "session_conf" : {
      "tcp_session_expire_time" : 900,
      "udp_session_expire_time" : 300,
      "icmp_session_expire_time" : 10,
      "tcp_time_wait_time" : 5
    }
  } ]
}

Status Codes

Status Code

Description

200

Query operation succeeded.

Error Codes

See Error Codes.