Updated on 2024-03-07 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.

Minimum: 1

Maximum: 36

Table 2 Query Parameters

Parameter

Mandatory

Type

Description

id

No

String

Specifies the public NAT gateway ID.

Minimum: 1

Maximum: 36

enterprise_project_id

No

String

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

Default: 0

Minimum: 1

Maximum: 36

description

No

String

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

Minimum: 0

Maximum: 255

created_at

No

String

Specifies when the public NAT gateway was created. The time is in yyyy-mm-dd hh:mm:ss.SSSSSS format.

Minimum: 1

Maximum: 36

name

No

String

Specifies the public NAT gateway name. You can enter up to 64 characters. Only digits, letters, underscores (_), and hyphens (-) are allowed.

Minimum: 1

Maximum: 64

status

No

Array

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.

Array Length: 1 - 10

Enumeration values:

  • ACTIVE

  • PENDING_CREATE

  • PENDING_UPDATE

  • PENDING_DELETE

  • INACTIVE

spec

No

Array

Specifies the public NAT gateway specifications. The value can be: 1: small, which supports a maximum of 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.

Array Length: 1 - 10

Enumeration values:

  • 1

  • 2

  • 3

  • 4

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.

Minimum: 36

Maximum: 36

router_id

No

String

Specifies the VPC ID.

Minimum: 36

Maximum: 36

limit

No

Integer

Specifies the number of records displayed on each page. Value range: 0 to 2000 Default value: 2000

Minimum: 1

Maximum: 2000

Default: 2000

marker

No

String

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

  • 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 eleventh and subsequent resource records (2,000 by default) will be returned.

Minimum: 36

Maximum: 36

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.

Minimum: 1

Maximum: 10240

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.

Array Length: 2000 - 0

Table 5 NatGatewayResponseBody

Parameter

Type

Description

id

String

Specifies the public NAT gateway ID.

Minimum: 36

Maximum: 36

tenant_id

String

Specifies the project ID.

Minimum: 1

Maximum: 36

name

String

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

Minimum: 1

Maximum: 64

description

String

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

Minimum: 0

Maximum: 255

spec

String

Specifies the public NAT gateway specifications. The value can be: 1: small, which supports a maximum of 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.

Enumeration values:

  • 1

  • 2

  • 3

  • 4

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.

Enumeration values:

  • ACTIVE

  • PENDING_CREATE

  • PENDING_UPDATE

  • PENDING_DELETE

  • INACTIVE

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

String

Specifies when the public NAT gateway was created. The time is in yyyy-mm-dd hh:mm:ss.SSSSSS format.

Minimum: 1

Maximum: 36

router_id

String

Specifies the VPC ID.

Minimum: 36

Maximum: 36

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.

Minimum: 36

Maximum: 36

enterprise_project_id

String

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

Minimum: 1

Maximum: 36

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.

Minimum: 7

Maximum: 15

billing_info

String

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

dnat_rules_limit

Long

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

Minimum: 1

Maximum: 100000

snat_rule_public_ip_limit

Integer

Specifies the maximum number of SNAT rules on a public NAT gateway. The default value is 20.

Minimum: 1

Maximum: 100

Table 6 SessionConfiguration

Parameter

Type

Description

tcp_session_expire_time

Integer

Specifies the TCP session duration.

Minimum: 40

Maximum: 7200

udp_session_expire_time

Integer

Specifies the UDP session duration.

Minimum: 40

Maximum: 7200

icmp_session_expire_time

Integer

Specifies the ICMP session duration.

Minimum: 10

Maximum: 7200

tcp_time_wait_time

Integer

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

Minimum: 0

Maximum: 1800

Example Requests

GET https://{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" : "",
    "dnat_rules_limit" : 200,
    "snat_rule_public_ip_limit" : 20,
    "ngport_ip_address" : "192.168.0.138"
  }, {
    "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" : "",
    "dnat_rules_limit" : 200,
    "snat_rule_public_ip_limit" : 20,
    "ngport_ip_address" : "192.168.5.210"
  } ]
}

SDK Sample Code

The SDK sample code is as follows.

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package com.huaweicloud.sdk.test;

import com.huaweicloud.sdk.core.auth.ICredential;
import com.huaweicloud.sdk.core.auth.BasicCredentials;
import com.huaweicloud.sdk.core.exception.ConnectionException;
import com.huaweicloud.sdk.core.exception.RequestTimeoutException;
import com.huaweicloud.sdk.core.exception.ServiceResponseException;
import com.huaweicloud.sdk.nat.v2.region.NatRegion;
import com.huaweicloud.sdk.nat.v2.*;
import com.huaweicloud.sdk.nat.v2.model.*;

import java.util.List;
import java.util.ArrayList;

public class ListNatGatewaysSolution {

    public static void main(String[] args) {
        // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
        // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
        String ak = System.getenv("CLOUD_SDK_AK");
        String sk = System.getenv("CLOUD_SDK_SK");

        ICredential auth = new BasicCredentials()
                .withAk(ak)
                .withSk(sk);

        NatClient client = NatClient.newBuilder()
                .withCredential(auth)
                .withRegion(NatRegion.valueOf("<YOUR REGION>"))
                .build();
        ListNatGatewaysRequest request = new ListNatGatewaysRequest();
        request.withId("<id>");
        request.withEnterpriseProjectId("<enterprise_project_id>");
        request.withDescription("<description>");
        request.withCreatedAt("<created_at>");
        request.withName("<name>");
        request.withStatus();
        request.withSpec();
        request.withAdminStateUp(<admin_state_up>);
        request.withInternalNetworkId("<internal_network_id>");
        request.withRouterId("<router_id>");
        request.withLimit(<limit>);
        request.withMarker("<marker>");
        try {
            ListNatGatewaysResponse response = client.listNatGateways(request);
            System.out.println(response.toString());
        } catch (ConnectionException e) {
            e.printStackTrace();
        } catch (RequestTimeoutException e) {
            e.printStackTrace();
        } catch (ServiceResponseException e) {
            e.printStackTrace();
            System.out.println(e.getHttpStatusCode());
            System.out.println(e.getRequestId());
            System.out.println(e.getErrorCode());
            System.out.println(e.getErrorMsg());
        }
    }
}
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# coding: utf-8

from huaweicloudsdkcore.auth.credentials import BasicCredentials
from huaweicloudsdknat.v2.region.nat_region import NatRegion
from huaweicloudsdkcore.exceptions import exceptions
from huaweicloudsdknat.v2 import *

if __name__ == "__main__":
    # The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
    # In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
    ak = __import__('os').getenv("CLOUD_SDK_AK")
    sk = __import__('os').getenv("CLOUD_SDK_SK")

    credentials = BasicCredentials(ak, sk) \

    client = NatClient.new_builder() \
        .with_credentials(credentials) \
        .with_region(NatRegion.value_of("<YOUR REGION>")) \
        .build()

    try:
        request = ListNatGatewaysRequest()
        request.id = "<id>"
        request.enterprise_project_id = "<enterprise_project_id>"
        request.description = "<description>"
        request.created_at = "<created_at>"
        request.name = "<name>"
        request.status = 
        request.spec = 
        request.admin_state_up = <AdminStateUp>
        request.internal_network_id = "<internal_network_id>"
        request.router_id = "<router_id>"
        request.limit = <limit>
        request.marker = "<marker>"
        response = client.list_nat_gateways(request)
        print(response)
    except exceptions.ClientRequestException as e:
        print(e.status_code)
        print(e.request_id)
        print(e.error_code)
        print(e.error_msg)
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package main

import (
	"fmt"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic"
    nat "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/nat/v2"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/services/nat/v2/model"
    region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/nat/v2/region"
)

func main() {
    // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
    // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
    ak := os.Getenv("CLOUD_SDK_AK")
    sk := os.Getenv("CLOUD_SDK_SK")

    auth := basic.NewCredentialsBuilder().
        WithAk(ak).
        WithSk(sk).
        Build()

    client := nat.NewNatClient(
        nat.NatClientBuilder().
            WithRegion(region.ValueOf("<YOUR REGION>")).
            WithCredential(auth).
            Build())

    request := &model.ListNatGatewaysRequest{}
	idRequest:= "<id>"
	request.Id = &idRequest
	enterpriseProjectIdRequest:= "<enterprise_project_id>"
	request.EnterpriseProjectId = &enterpriseProjectIdRequest
	descriptionRequest:= "<description>"
	request.Description = &descriptionRequest
	createdAtRequest:= "<created_at>"
	request.CreatedAt = &createdAtRequest
	nameRequest:= "<name>"
	request.Name = &nameRequest
	adminStateUpRequest:= <admin_state_up>
	request.AdminStateUp = &adminStateUpRequest
	internalNetworkIdRequest:= "<internal_network_id>"
	request.InternalNetworkId = &internalNetworkIdRequest
	routerIdRequest:= "<router_id>"
	request.RouterId = &routerIdRequest
	limitRequest:= int32(<limit>)
	request.Limit = &limitRequest
	markerRequest:= "<marker>"
	request.Marker = &markerRequest
	response, err := client.ListNatGateways(request)
	if err == nil {
        fmt.Printf("%+v\n", response)
    } else {
        fmt.Println(err)
    }
}

For SDK sample code of more programming languages, see the Sample Code tab in API Explorer. SDK sample code can be automatically generated.

Status Codes

Status Code

Description

200

Query operation succeeded.

Error Codes

See Error Codes.