Console

1. In the Google Cloud console, go to theVM instances page.

   Go to VM instances

2. Optional: Use thefilter_listFilter box to restrict the number of instances shown.

3. If the instance has an external IP address, it appears undertheExternal IP column.

   If theExternal IP column is empty, then there is no external IPaddress for the instance. If the instance doesn't have an external IPaddress, then you canassign one.

Depending on the column display options, you might see more columns orfewer columns than appear in the previous image.

gcloud

There are two commands you can use to view the IP addresses for an instance:

• gcloud compute instances list shows all IP addresses used by a computeinstance, either static or ephemeral.
• gcloud compute addresses list shows all the reserved IP addresses thatare assigned to a compute instance.

This task shows how to view IP addresses usinggcloud compute instances commands.

1. To view the internal and external IP addresses for your instancesuse thegcloud compute instances list command.

   gcloud compute instances list

   You can append the--filter clause to restrict the number of instancesreturned by the command, for example,--filter='zone:us-central1-c'.

   The output is similar to the following:

   NAME           ZONE            MACHINE_TYPE    PREEMPTIBLE  INTERNAL_IP                EXTERNAL_IP                     STATUSwebapp1        us-central1-c   c3-highmem-88   true         192.0.2.11                                                 RUNNINGmy-instance    us-central1-c   n4-standard-2                192.0.2.126                203.0.113.6                     RUNNINGmy-dual-stack  us-central1-a   e2-micro                     192.0.2.54                 203.0.113.7                     RUNNING                                                                                      2001:db8:2:2:2:2:2:2/96new-ipv6-only  us-central1-a   n4-standard-2                2001:db8:1:1:1:1:1:1/96                                    RUNNING

   If the External IP address field is empty, then there is no defined IPaddress of that type for the instance; you canassign one.

2. To view the internal or external IP address for a specific instance,use thegcloud compute instances describe commandwith a--format flag to filter the output.

   Internal addresses

   To view the internal IP address for a specific instance, use either of the following commands:

   • IPv4 addresses:

        gcloud compute instances describeINSTANCE_NAME \       --zone=ZONE \       --format='get(networkInterfaces[0].networkIP)'

     192.0.2.11

   • IPv6 addresses:

        gcloud compute instances describeINSTANCE_NAME \       --zone=ZONE \       --format='get(networkInterfaces[0].ipv6Address)'

     2001:db8:2:2:2:2:2:2

   External addresses

   To view the external IP address for a specific instance, use either of the following commands:

   • IPv4 addresses:

        gcloud compute instances describeINSTANCE_NAME \       --zone=ZONE \       --format='get(networkInterfaces[0].accessConfigs[0].natIP)'

     203.0.113.6

   • IPv6 addresses:

        gcloud compute instances describeINSTANCE_NAME \       --zone=ZONE \       --format='get(networkInterfaces[0].ipv6AccessConfigs[0].externalIpv6)'

     2001:db8:3:3:3:3:3:3

   Replace the following:

   • INSTANCE_NAME: the name of theinstance whose internal or external IP you want to view
   • ZONE: the name of the zone where the instanceis located

   If the command doesn't return an IP address, then the instance doesn'thave an external IP address configured.

REST

Make aGET request to theinstances.get method. By appending a$fields query parameter to the request, you can restrict the output to just the fields of interest.

 GET https://compute.googleapis.com/compute/v1/projects/PROJECT_NAME/zones/ZONE/instances/INSTANCE_NAME$fields=name,networkInterfaces.networkIP,networkInterfaces.accessConfigs.natIP,networkInterfaces.ipv6AccessConfigs.externalIpv6

Replace the following:

• PROJECT_NAME: the name of the project that contains the instance
• ZONE: the zone for the instance that you want toquery
• INSTANCE_NAME: the name of the instance resourceto return

If any of the IP addresses are not configured, then that field doesn'tappear in the output. For a compute instance that uses a dual-stack networkwith an external IPv6 address, your response body resembles the following:

{  "name": "my-dual-stack-vm",  "networkInterfaces": [    {      "networkIP": "10.0.0.2",      "accessConfigs": [        {          "natIP": "104.155.21.204"        }      ],      "ipv6AccessConfigs": [        {          "externalIpv6": "2600:1900:4010:8b2:0:0:0:0"        }      ]    }  ]}

The following fields contain the required information:

• networkIP: the assigned internal IPv4 address
• natIP: the assigned external IPv4 address
• externalIpv6: the assigned external IPv6 address

Python

fromenumimportEnumfromtypingimportListfromgoogle.cloudimportcompute_v1defget_instance(project_id:str,zone:str,instance_name:str)->compute_v1.Instance:"""    Get information about a VM instance in the given zone in the specified project.    Args:        project_id: project ID or project number of the Cloud project you want to use.        zone: name of the zone you want to use. For example: “us-west3-b”        instance_name: name of the VM instance you want to query.    Returns:        An Instance object.    """instance_client=compute_v1.InstancesClient()instance=instance_client.get(project=project_id,zone=zone,instance=instance_name)returninstanceclassIPType(Enum):INTERNAL="internal"EXTERNAL="external"IP_V6="ipv6"defget_instance_ip_address(instance:compute_v1.Instance,ip_type:IPType)->List[str]:"""    Retrieves the specified type of IP address (ipv6, internal or external) of a specified Compute Engine instance.    Args:        instance (compute_v1.Instance): instance to get        ip_type (IPType): The type of IP address to retrieve (ipv6, internal or external).    Returns:        List[str]: Requested type IP addresses of the instance.    """ips=[]ifnotinstance.network_interfaces:returnipsforinterfaceininstance.network_interfaces:ifip_type==IPType.EXTERNAL:forconfigininterface.access_configs:ifconfig.type_=="ONE_TO_ONE_NAT":ips.append(config.nat_i_p)elifip_type==IPType.IP_V6:foripv6_configingetattr(interface,"ipv6_access_configs",[]):ifipv6_config.type_=="DIRECT_IPV6":ips.append(ipv6_config.external_ipv6)elifip_type==IPType.INTERNAL:# Internal IP is directly available in the network interfaceips.append(interface.network_i_p)returnips

Java

importcom.google.cloud.compute.v1.AccessConfig;importcom.google.cloud.compute.v1.AccessConfig.Type;importcom.google.cloud.compute.v1.GetInstanceRequest;importcom.google.cloud.compute.v1.Instance;importcom.google.cloud.compute.v1.InstancesClient;importcom.google.cloud.compute.v1.NetworkInterface;importjava.io.IOException;importjava.util.ArrayList;importjava.util.List;publicclassGetVmAddress{publicstaticvoidmain(String[]args)throwsIOException{// TODO(developer): Replace these variables before running the sample.// Project ID or project number of the Google Cloud project you want to use.StringprojectId="your-project-id";// Instance ID of the Google Cloud project you want to use.StringinstanceId="your-instance-id";// IPType you want to search.IpTypeipType=IpType.INTERNAL;getVmAddress(projectId,instanceId,ipType);}// Retrieves the specified type of IP address// (ipv6, internal or external) of a specified Compute Engine instance.publicstaticList<String>getVmAddress(StringprojectId,StringinstanceId,IpTypeipType)throwsIOException{List<String>result=newArrayList<>();Instanceinstance=getInstance(projectId,instanceId);for(NetworkInterfacenetworkInterface:instance.getNetworkInterfacesList()){if(ipType==IpType.EXTERNAL){for(AccessConfigaccessConfig:networkInterface.getAccessConfigsList()){if(accessConfig.getType().equals(Type.ONE_TO_ONE_NAT.name())){result.add(accessConfig.getNatIP());}}}elseif(ipType==IpType.IP_V6){for(AccessConfigaccessConfig:networkInterface.getAccessConfigsList()){if(accessConfig.hasExternalIpv6()                  &&accessConfig.getType().equals(Type.DIRECT_IPV6.name())){result.add(accessConfig.getExternalIpv6());}}}elseif(ipType==IpType.INTERNAL){result.add(networkInterface.getNetworkIP());}}returnresult;}privatestaticInstancegetInstance(StringprojectId,StringinstanceId)throwsIOException{// Initialize client that will be used to send requests. This client only needs to be created// once, and can be reused for multiple requests.try(InstancesClientinstancesClient=InstancesClient.create()){GetInstanceRequestrequest=GetInstanceRequest.newBuilder().setInstance(instanceId).setProject(projectId).setZone("us-central1-b").build();returninstancesClient.get(request);}}publicenumIpType{INTERNAL("internal"),EXTERNAL("external"),IP_V6("ipv6");privatefinalStringtype;IpType(Stringtype){this.type=type;}publicStringgetType(){returntype;}}}

Console

1. In the Google Cloud console, go to theVM instances page.

   Go to VM instances

2. Optional: Use thefilter_listFilter box to restrict the number of instances shown.

3. Click the name of the instance that you want to inspect.

4. In theNetworking section, underNetwork interfaces, you can seethe network interfaces (NICs) created for the instance, the network andsubnet associated with each NIC, and their assigned IP addresses.

5. You can click the name of a NIC to open theNetwork interface detailspage. On this page, you can see the firewalls and routes used by the NICand also perform a connectivity test for the NIC.

gcloud

To view the network interfaces (NICs) for a compute instance, use thegcloud compute instances describe command.You can append a--format option to the command to restrict the informationreturned to specific fields and change how it is displayed, for example:

gcloud compute instances describeINSTANCE_NAME --zone=ZONE \    --format="flattened(name,networkInterfaces[].name, networkInterfaces[].network.basename(), networkInterfaces[].stackType, networkInterfaces[].nicType)"

Replace the following:

• INSTANCE_NAME: the name of the instance to view
• ZONE: the zone for the instance that you want toview

The output is similar to the following:

name:                           test-instancenetworkInterfaces[0].name:      nic0networkInterfaces[0].network:   defaultnetworkInterfaces[0].nicType:   GVNICnetworkInterfaces[0].stackType: IPV4_ONLYnetworkInterfaces[1].name:      nic1networkInterfaces[1].network:   prod-ipv6networkInterfaces[1].nicType:   GVNICnetworkInterfaces[1].stackType: IPV4_IPV6networkInterfaces[1].name:      nic1.2networkInterfaces[1].network:   alt-ipv6-netnetworkInterfaces[1].nicType:   GVNICnetworkInterfaces[1].stackType: IPV4_IPV6networkInterfaces[1].parentNicName: nic1

REST

Construct aGET request to theinstances.get method.By appending a$fields query parameter to the request, you can restrictthe output to just thenetworkInterfaces property.

Before using any of the request data, make the following replacements:

• PROJECT_ID: ID of the project that contains the instance
• ZONE: zone of the instance
• INSTANCE_NAME: the name of the instance

HTTP method and URL:

GET https://compute.googleapis.com/compute/v1/projects/PROJECT_NAME/zones/ZONE/instances/INSTANCE_NAME?$fields=networkInterfaces

To send your request, expand one of these options:

curl -X GET \
     -H "Authorization: Bearer $(gcloud auth print-access-token)" \
     "https://compute.googleapis.com/compute/v1/projects/PROJECT_NAME/zones/ZONE/instances/INSTANCE_NAME?$fields=networkInterfaces"

$cred = gcloud auth print-access-token
$headers = @{ "Authorization" = "Bearer $cred" }

Invoke-WebRequest `
    -Method GET `
    -Headers $headers `
    -Uri "https://compute.googleapis.com/compute/v1/projects/PROJECT_NAME/zones/ZONE/instances/INSTANCE_NAME?$fields=networkInterfaces" | Select-Object -Expand Content

You should receive a JSON response similar to the following:

{  "networkInterfaces": [  {    "kind": "compute#networkInterface",    "network": "https://www.googleapis.com/compute/v1/projects/my-project/global/networks/network-name-1",    "subnetwork": "https://www.googleapis.com/compute/v1/projects/my-project/regions/us-central1/subnetworks/subnet-name-1",    "networkIP": "10.128.0.15",    "name": "nic0",    "accessConfigs": [      {        "kind": "compute#accessConfig",        "type": "ONE_TO_ONE_NAT",        "name": "External NAT",        "networkTier": "PREMIUM"      }    ],    "fingerprint": "mBy9xvkWA9M=",    "stackType": "IPV4_ONLY",    "nicType": "GVNIC"  },  {    "kind": "compute#networkInterface",    "network": "https://www.googleapis.com/compute/v1/projects/my-project/global/networks/network-name-2",    "subnetwork": "https://www.googleapis.com/compute/v1/projects/my-project/regions/us-central1/subnetworks/subnet-name-2",    "networkIP": "10.0.20.2",    "name": "nic1",    "accessConfigs": [      {        "kind": "compute#accessConfig",        "type": "ONE_TO_ONE_NAT",        "name": "External NAT",        "networkTier": "PREMIUM"      }    ],    "ipv6AccessConfigs": [      {        "kind": "compute#accessConfig",        "type": "DIRECT_IPV6",        "name": "external-ipv6",        "externalIpv6": "2600:1900:4000:8447:0:0:0:0",        "externalIpv6PrefixLength": 96,        "publicPtrDomainName": "",        "networkTier": "PREMIUM"      }    ],    "fingerprint": "rx6hfNA94f4=",    "stackType": "IPV4_IPV6",    "ipv6AccessType": "EXTERNAL",    "nicType": "GVNIC",    "parentNicName": "nic1"  },  {    "kind": "compute#networkInterface",    "network": "https://www.googleapis.com/compute/v1/projects/my-project/global/networks/network-name-3",    "subnetwork": "https://www.googleapis.com/compute/v1/projects/my-project/regions/us-central1/subnetworks/subnet-name-3",    "networkIP": "10.0.26.2",    "name": "nic1.1",    "accessConfigs": [      {        "kind": "compute#accessConfig",        "type": "ONE_TO_ONE_NAT",        "name": "External NAT",        "networkTier": "PREMIUM"      }    ],    "ipv6AccessConfigs": [      {        "kind": "compute#accessConfig",        "type": "DIRECT_IPV6",        "name": "external-ipv6",        "externalIpv6": "2600:1900:4000:8450:0:0:0:0",        "externalIpv6PrefixLength": 96,        "publicPtrDomainName": "",        "networkTier": "PREMIUM"      }    ],    "fingerprint": "rx6hfNA94f4=",    "stackType": "IPV4_IPV6",    "ipv6AccessType": "EXTERNAL",    "nicType": "GVNIC",    "parentNicName": "nic1"  }  ]}

Console

1. In the Google Cloud console, go to theVPC networks page.

   Go to VPC networks

2. Optional: Use thefilter_listFilter box to restrict the number of networks shown.

3. Click the name of the network for which you want to list the computeinstances.

4. Select theInstances tab to view the instances within that network.

gcloud

To view the compute instances that use a specific network, use thegcloud compute instances list command.

Use a--filter flag to list only the instances that use a specific network.You can also use a--format flag to restrict and format the results,for example:

gcloud compute instances list \    --filter 'networkInterfaces[].network:NETWORK_NAME' \    --format="table(name:sort=1,machineType.basename(),zone.basename(),networkInterfaces[].subnetwork)"

The output is similar to the following:

NAME: c2-tier1-multinicMACHINE_TYPE: c2-standard-30ZONE: us-central1-cSUBNETWORK: ['https://www.googleapis.com/compute/v1/projects/my-project/regions/us-central1/subnetworks/default', 'https://www.googleapis.com/compute/v1/projects/my-project/regions/us-central1/subnetworks/webapps-external-subnet']
NAME: c3-with-lssdMACHINE_TYPE: c3-standard-4-lssdZONE: us-central1-aSUBNETWORK: ['https://www.googleapis.com/compute/v1/projects/my-project/regions/us-central1/subnetworks/default']
NAME: example-instance3MACHINE_TYPE: n2-custom-2-163840-extZONE: us-central1-bSUBNETWORK: ['https://www.googleapis.com/compute/v1/projects/my-project/regions/us-central1/subnetworks/default']
NAME: n4-test-windowsMACHINE_TYPE: n4-standard-2ZONE: us-central1-cSUBNETWORK: ['https://www.googleapis.com/compute/v1/projects/my-project/regions/us-central1/subnetworks/default']

Console

1. In the Google Cloud console, go to theVM instances page.

   Go to VM instances

2. Optional: Use thefilter_listFilter box to restrict the number of instances shown.

3. Click the name of the instance that you want to inspect.

4. In theNetworking section, check the value forTotal egress bandwidth tier:

   • TIER_1: Tier_1 networking is enabled.
   • -: Tier_1 networking is not enabled.

gcloud

To view thenetworkPerformanceConfig setting for an instance, use thegcloud compute instances describe command.You can append a--format option to the command to restrict the informationreturned to specific fields and change how it is displayed, for example:

gcloud compute instances describeINSTANCE_NAME \    --zone=ZONE \    --format="text(name, networkPerformanceConfig)"

If Tier_1 networking is not configured for the instance, then thenetworkPerformanceConfig field is not included in the output. IfTier_1 networking is enabled for an instance, then the output is similarto the following:

name:                                              c2-tier1-multinicnetworkPerformanceConfig.totalEgressBandwidthTier: TIER_1

REST

Construct aGET request to theinstances.get method.By appending a$fields query parameter to the request, you can restrictthe output to just thename,networkPerformanceConfig, andnicType fields.

GET https://compute.googleapis.com/compute/v1/projects/PROJECT_NAME/zones/ZONE/instances/INSTANCE_NAME?$fields=name,networkPerformanceConfig,networkInterfaces.nicType

Replace the following:

• PROJECT_NAME: the name of the project thatcontains the instance
• ZONE: the zone for the instance that you want toquery
• INSTANCE_NAME: the name of the instance resourceto return

If Tier_1 networking is not configured for the instance, then thenetworkPerformanceConfig field is not included in the output. IfTier_1 networking is enabled for an instance, then the output is similarto the following:

{  "name": "c2-tier1-multinic",  "networkInterfaces": [    {      "nicType": "GVNIC"    },    {      "nicType": "GVNIC"    }  ],  "networkPerformanceConfig": {    "totalEgressBandwidthTier": "TIER_1"  }}