REST Resource: projects.locations.global.connectivityTests

Resource: ConnectivityTest

A Connectivity Test for a network reachability analysis.

JSON representation 
{
  "name": string,
  "description": string,
  "source": {
    object (Endpoint)
  },
  "destination": {
    object (Endpoint)
  },
  "protocol": string,
  "relatedProjects": [
    string
  ],
  "displayName": string,
  "labels": {
    string: string,
    ...
  },
  "createTime": string,
  "updateTime": string,
  "reachabilityDetails": {
    object (ReachabilityDetails)
  }
}
Fields
name

string

Required. Unique name of the resource using the form: projects/{projectId}/locations/global/connectivityTests/{test}
description

string

The user-supplied description of the Connectivity Test. Maximum of 512 characters.
source

object (Endpoint)

Required. Source specification of the Connectivity Test.

You can use a combination of source IP address, virtual machine (VM) instance, or Compute Engine network to uniquely identify the source location.

Examples: If the source IP address is an internal IP address within a Google Cloud Virtual Private Cloud (VPC) network, then you must also specify the VPC network. Otherwise, specify the VM instance, which already contains its internal IP address and VPC network information.

If the source of the test is within an on-premises network, then you must provide the destination VPC network.

If the source endpoint is a Compute Engine VM instance with multiple network interfaces, the instance itself is not sufficient to identify the endpoint. So, you must also specify the source IP address or VPC network.

A reachability analysis proceeds even if the source location is ambiguous. However, the test result may include endpoints that you don't intend to test.
destination

object (Endpoint)

Required. Destination specification of the Connectivity Test.

You can use a combination of destination IP address, Compute Engine VM instance, or VPC network to uniquely identify the destination location.

Even if the destination IP address is not unique, the source IP location is unique. Usually, the analysis can infer the destination endpoint from route information.

If the destination you specify is a VM instance and the instance has multiple network interfaces, then you must also specify either a destination IP address or VPC network to identify the destination interface.

A reachability analysis proceeds even if the destination location is ambiguous. However, the result can include endpoints that you don't intend to test.
protocol

string

IP Protocol of the test. When not provided, "TCP" is assumed.
relatedProjects[]

string

Other projects that may be relevant for reachability analysis. This is applicable to scenarios where a test can cross project boundaries.
displayName

string

Output only. The display name of a Connectivity Test.
labels

map (key: string, value: string)

Resource labels to represent user-provided metadata.

An object containing a list of "key": value pairs. Example: { "name": "wrench", "mass": "1.3kg", "count": "3" }.
createTime

string (Timestamp format)

Output only. The time the test was created.

A timestamp in RFC3339 UTC "Zulu" format, with nanosecond resolution and up to nine fractional digits. Examples: "2014-10-02T15:01:23Z" and "2014-10-02T15:01:23.045123456Z".
updateTime

string (Timestamp format)

Output only. The time the test's configuration was updated.

A timestamp in RFC3339 UTC "Zulu" format, with nanosecond resolution and up to nine fractional digits. Examples: "2014-10-02T15:01:23Z" and "2014-10-02T15:01:23.045123456Z".
reachabilityDetails

object (ReachabilityDetails)

Output only. The reachability details of this test from the latest run. The details are updated when creating a new test, updating an existing test, or triggering a one-time rerun of an existing test.

Endpoint

Source or destination of the Connectivity Test.

JSON representation 
{
  "ipAddress": string,
  "port": integer,
  "instance": string,
  "gkeMasterCluster": string,
  "cloudSqlInstance": string,
  "network": string,
  "networkType": enum (NetworkType),
  "projectId": string
}
Fields
ipAddress

string

The IP address of the endpoint, which can be an external or internal IP. An IPv6 address is only allowed when the test's destination is a global load balancer VIP.
port

integer

The IP protocol port of the endpoint. Only applicable when protocol is TCP or UDP.
instance

string

A Compute Engine instance URI.
gkeMasterCluster

string

A cluster URI for Google Kubernetes Engine master.
cloudSqlInstance

string

A Cloud SQL instance URI.
network

string

A Compute Engine network URI.
networkType

enum (NetworkType)

Type of the network where the endpoint is located. Applicable only to source endpoint, as destination network type can be inferred from the source.
projectId

string

Project ID where the endpoint is located. The Project ID can be derived from the URI if you provide a VM instance or network URI. The following are two cases where you must provide the project ID: 1. Only the IP address is specified, and the IP address is within a GCP project. 2. When you are using Shared VPC and the IP address that you provide is from the service project. In this case, the network that the IP address resides in is defined in the host project.

NetworkType

The type definition of an endpoint's network. Use one of the following choices:

NETWORK_TYPE_UNSPECIFIED

Default type if unspecified.

GCP_NETWORK

A network hosted within Google Cloud Platform. To receive more detailed output, specify the URI for the source or destination network.

NON_GCP_NETWORK

A network hosted outside of Google Cloud Platform. This can be an on-premises network, or a network hosted by another cloud provider.

Enums
NETWORK_TYPE_UNSPECIFIED Default type if unspecified.
GCP_NETWORK A network hosted within Google Cloud Platform. To receive more detailed output, specify the URI for the source or destination network.
NON_GCP_NETWORK A network hosted outside of Google Cloud Platform. This can be an on-premises network, or a network hosted by another cloud provider.

ReachabilityDetails

The details of reachability state from the latest run.

JSON representation 
{
  "result": enum (Result),
  "verifyTime": string,
  "error": {
    object (Status)
  },
  "traces": [
    {
      object (Trace)
    }
  ]
}
Fields
result

enum (Result)

The overall reachability result of the test.
verifyTime

string (Timestamp format)

The time the reachability state was verified.

A timestamp in RFC3339 UTC "Zulu" format, with nanosecond resolution and up to nine fractional digits. Examples: "2014-10-02T15:01:23Z" and "2014-10-02T15:01:23.045123456Z".
error

object (Status)

The details of a failure or a cancellation of reachability analysis.
traces[]

object (Trace)

Result may contain a list of traces if a test has multiple possible paths in the network, such as when destination endpoint is a load balancer with multiple backends.

Result

Overall reachability result of the test, which can be one of the following values:

RESULT_UNSPECIFIED

Result is not specified.

REACHABLE

Packet originating from source is expected to reach destination. Possible scenarios are: * Packet is traced to the destination. * Analysis is partially complete based on configurations where you have permission. The Final state indicates that the packet is forwarded.

UNREACHABLE

Packet originating from the source is expected to be dropped before reaching the destination.

UNDETERMINED

The reachability could not be determined. Possible reasons are: * Analysis is aborted due to a permission error. The user does not have read permission to the projects listed in the test. * Analysis is aborted due to invalid argument, or the analyzer is not able to identify a valid endpoint location for analysis. * Analysis is aborted due to internal errors.

AMBIGUOUS

If the source and destination endpoint does not uniquely identify the test location in the network, and the reachability result contains multiple traces with mixed reachable and unreachable states, then this result is returned.

Enums
RESULT_UNSPECIFIED Result is not specified.
REACHABLE Packet originating from source is expected to reach destination.
UNREACHABLE Packet originating from source is expected to be dropped before reaching destination.
AMBIGUOUS If the source and destination endpoint does not uniquely identify the test location in the network, and the reachability result contains multiple traces with mixed reachable and unreachable states, then this result is returned.
UNDETERMINED

The reachability could not be determined. Possible reasons are:

  • Analysis is aborted due to permission error. User does not have read permission to the projects listed in the test.
  • Analysis is aborted due to internal errors.
  • Analysis is partially complete based on configurations where the user has permission. The Final state indicates that the packet is forwarded to another network where the user has no permission to access the configurations.

Trace

Trace represents one simulated packet forwarding path.

  • Each trace contains multiple ordered steps.
  • Each step is in a particular state and has an associated configuration.
  • State is categorized as a final or non-final state.
  • Each final state has a reason associated with it.
  • Each trace must end with a final state (the last step).


  |---------------------Trace----------------------|
  Step1(State) Step2(State) ---  StepN(State(final))
JSON representation 
{
  "endpointInfo": {
    object (EndpointInfo)
  },
  "steps": [
    {
      object (Step)
    }
  ]
}
Fields
endpointInfo

object (EndpointInfo)

Derived from the source and destination endpoints definition, and validated by the data plane model. If there are multiple traces starting from different source locations, then the endpointInfo may be different between traces.
steps[]

object (Step)

A trace of a test contains multiple steps from the initial state to the final state (delivered, dropped, forwarded, or aborted).

The steps are ordered by the processing sequence within the simulated network state machine. It is critical to preserve the order of the steps and avoid reordering or sorting them.

EndpointInfo

For display only. The specification of the endpoints for the test. EndpointInfo is derived from source and destination Endpoint and validated by the backend data plane model.

JSON representation 
{
  "sourceIp": string,
  "destinationIp": string,
  "protocol": string,
  "sourcePort": integer,
  "destinationPort": integer,
  "sourceNetworkUri": string,
  "destinationNetworkUri": string
}
Fields
sourceIp

string

Source IP address.
destinationIp

string

Destination IP address.
protocol

string

IP protocol in string format, for example: "TCP", "UDP", "ICMP".
sourcePort

integer

Source port. Only valid when protocol is TCP or UDP.
destinationPort

integer

Destination port. Only valid when protocol is TCP or UDP.
sourceNetworkUri

string

URI of the network where this packet originates from.
destinationNetworkUri

string

URI of the network where this packet is sent to.

Step

A simulated forwarding path is composed of multiple steps. Each step has a well-defined state and an associated configuration.

JSON representation 
{
  "description": string,
  "state": enum (State),
  "causesDrop": boolean,
  "projectId": string,

  // Union field step_info can be only one of the following:
  "instance": {
    object (InstanceInfo)
  },
  "firewall": {
    object (FirewallInfo)
  },
  "route": {
    object (RouteInfo)
  },
  "endpoint": {
    object (EndpointInfo)
  },
  "forwardingRule": {
    object (ForwardingRuleInfo)
  },
  "vpnGateway": {
    object (VpnGatewayInfo)
  },
  "vpnTunnel": {
    object (VpnTunnelInfo)
  },
  "deliver": {
    object (DeliverInfo)
  },
  "forward": {
    object (ForwardInfo)
  },
  "abort": {
    object (AbortInfo)
  },
  "drop": {
    object (DropInfo)
  },
  "loadBalancer": {
    object (LoadBalancerInfo)
  },
  "network": {
    object (NetworkInfo)
  },
  "gkeMaster": {
    object (GKEMasterInfo)
  },
  "cloudSqlInstance": {
    object (CloudSQLInstanceInfo)
  }
  // End of list of possible types for union field step_info.
}
Fields
description

string

A description of the step. Usually this is a summary of the state.
state

enum (State)

Each step is in one of the pre-defined states.
causesDrop

boolean

This is a step that leads to the final state Drop.
projectId

string

Project ID that contains the configuration this step is validating.
Union field step_info. Configuration or metadata associated with each step. The configuration is filtered based on viewer's permission. If a viewer has no permission to view the configuration in this step, for non-final states a special state is populated (VIEWER_PERMISSION_MISSING), and for final state the configuration is cleared. step_info can be only one of the following:
instance

object (InstanceInfo)

Display info of a Compute Engine instance.
firewall

object (FirewallInfo)

Display info of a Compute Engine firewall rule.
route

object (RouteInfo)

Display info of a Compute Engine route.
endpoint

object (EndpointInfo)

Display info of the source and destination under analysis. The endpiont info in an intermediate state may differ with the initial input, as it might be modified by state like NAT, or Connection Proxy.
forwardingRule

object (ForwardingRuleInfo)

Display info of a Compute Engine forwarding rule.
vpnGateway

object (VpnGatewayInfo)

Display info of a Compute Engine VPN gateway.
vpnTunnel

object (VpnTunnelInfo)

Display info of a Compute Engine VPN tunnel.
deliver

object (DeliverInfo)

Display info of the final state "deliver" and reason.
forward

object (ForwardInfo)

Display info of the final state "forward" and reason.
abort

object (AbortInfo)

Display info of the final state "abort" and reason.
drop

object (DropInfo)

Display info of the final state "drop" and reason.
loadBalancer

object (LoadBalancerInfo)

Display info of the load balancers.
network

object (NetworkInfo)

Display info of a GCP network.
gkeMaster

object (GKEMasterInfo)

Display info of a Google Kubernetes Engine cluster master.
cloudSqlInstance

object (CloudSQLInstanceInfo)

Display info of a Cloud SQL instance.

State

Type of states that are defined in the network state machine. Each step in the packet trace is in a specific state.

STATE_UNSPECIFIED

Unspecified state.

START_FROM_INSTANCE

Initial state: packet originating from a Compute Engine instance. An

InstanceInfo

will be populated with starting instance info.

START_FROM_INTERNET

Initial state: packet originating from Internet. The endpoint info will be populated.

START_FROM_PRIVATE_NETWORK

Initial state: packet originating from a VPC or on-premises network with internal source IP. If the source is a Virtual Private Cloud (VPC) network visible to the user, a

NetworkInfo

will be populated with details of the network.

START_FROM_GKE_MASTER

Initial state: packet originating from a Google Kubernetes Engine cluster master. A

GKEMasterInfo

will be populated with starting instance info.

START_FROM_CLOUD_SQL_INSTANCE

Initial state: packet originating from a Cloud SQL instance. A

CloudSQLInstanceInfo

will be populated with starting instance info.

APPLY_INGRESS_FIREWALL_RULE

Config checking state: verify ingress firewall rule.

APPLY_EGRESS_FIREWALL_RULE

Config checking state: verify egress firewall rule.

APPLY_ROUTE

Config checking state: verify route.

APPLY_FORWARDING_RULE

Config checking state: match forwarding rule.

SPOOFING_APPROVED

Config checking state: packet sent or received under foreign IP address and allowed.

ARRIVE_AT_INSTANCE

Forwarding state: arriving at a Compute Engine instance.

ARRIVE_AT_INTERNAL_LOAD_BALANCER

Forwarding state: arriving at a Compute Engine internal load balancer.

ARRIVE_AT_EXTERNAL_LOAD_BALANCER

Forwarding state: arriving at a Compute Engine external load balancer.

ARRIVE_AT_VPN_GATEWAY

Forwarding state: arriving at a Cloud VPN gateway.

ARRIVE_AT_VPN_TUNNEL

Forwarding state: arriving at a Cloud VPN tunnel.

NAT

Transition state: packet header translated.

PROXY_CONNECTION

Transition state: original connection is terminated and a new proxied connection is initiated.

DELIVER

Final state: packet could be delivered.

DROP

Final state: packet could be dropped.

FORWARD

Final state: packet could be forwarded to a network with an unknown configuration.

ABORT

Final state: analysis is aborted.

VIEWER_PERMISSION_MISSING

Special state: viewer of the test result does not have permission to see the configuration in this step.

Enums
STATE_UNSPECIFIED Unspecified state.
START_FROM_INSTANCE Initial state: packet originating from a Compute Engine instance. An InstanceInfo will be populated with starting instance info.
START_FROM_INTERNET Initial state: packet originating from Internet. The endpoint info will be populated.
START_FROM_PRIVATE_NETWORK Initial state: packet originating from a VPC or on-premises network with internal source IP. If the source is a VPC network visible to the user, a NetworkInfo will be populated with details of the network.
START_FROM_GKE_MASTER Initial state: packet originating from a Google Kubernetes Engine cluster master. A GKEMasterInfo will be populated with starting instance info.
START_FROM_CLOUD_SQL_INSTANCE Initial state: packet originating from a Cloud SQL instance. A CloudSQLInstanceInfo will be populated with starting instance info.
APPLY_INGRESS_FIREWALL_RULE Config checking state: verify ingress firewall rule.
APPLY_EGRESS_FIREWALL_RULE Config checking state: verify egress firewall rule.
APPLY_ROUTE Config checking state: verify route.
APPLY_FORWARDING_RULE Config checking state: match forwarding rule.
SPOOFING_APPROVED Config checking state: packet sent or received under foreign IP address and allowed.
ARRIVE_AT_INSTANCE Forwarding state: arriving at a Compute Engine instance.
ARRIVE_AT_INTERNAL_LOAD_BALANCER Forwarding state: arriving at a Compute Engine internal load balancer.
ARRIVE_AT_EXTERNAL_LOAD_BALANCER Forwarding state: arriving at a Compute Engine external load balancer.
ARRIVE_AT_VPN_GATEWAY Forwarding state: arriving at a Cloud VPN gateway.
ARRIVE_AT_VPN_TUNNEL Forwarding state: arriving at a Cloud VPN tunnel.
NAT Transition state: packet header translated.
PROXY_CONNECTION Transition state: original connection is terminated and a new proxied connection is initiated.
DELIVER Final state: packet delivered.
DROP Final state: packet dropped.
FORWARD Final state: packet forwarded to a network with an unknown configuration.
ABORT Final state: analysis is aborted.
VIEWER_PERMISSION_MISSING Special state: viewer of the test result does not have permission to see the configuration in this step.

InstanceInfo

For display only. Metadata associated with a Compute Engine instance.

JSON representation 
{
  "displayName": string,
  "uri": string,
  "interface": string,
  "networkUri": string,
  "internalIp": string,
  "externalIp": string,
  "networkTags": [
    string
  ],
  "serviceAccount": string
}
Fields
displayName

string

Name of a Compute Engine instance.
uri

string

URI of a Compute Engine instance.
interface

string

Name of the network interface of a Compute Engine instance.
networkUri

string

URI of a Compute Engine network.
internalIp

string

Internal IP address of the network interface.
externalIp

string

External IP address of the network interface.
networkTags[]

string

Network tags configured on the instance.
serviceAccount
(deprecated)

string

Service account authorized for the instance.

FirewallInfo

For display only. Metadata associated with a Compute Engine firewall rule.

JSON representation 
{
  "displayName": string,
  "uri": string,
  "direction": string,
  "action": string,
  "priority": integer,
  "networkUri": string,
  "targetTags": [
    string
  ],
  "targetServiceAccounts": [
    string
  ]
}
Fields
displayName

string

Name of a Compute Engine firewall rule.
uri

string

URI of a Compute Engine firewall rule. Implied default rule does not have URI.
direction

string

Possible values: INGRESS, EGRESS
action

string

Possible values: ALLOW, DENY
priority

integer

Priority of the firewall rule.
networkUri

string

URI of a Compute Engine network.
targetTags[]

string

Target tags of the firewall rule.
targetServiceAccounts[]

string

Target service accounts of the firewall rule.

RouteInfo

For display only. Metadata associated with a Compute Engine route.

JSON representation 
{
  "routeType": enum (RouteType),
  "nextHopType": enum (NextHopType),
  "displayName": string,
  "uri": string,
  "destIpRange": string,
  "nextHop": string,
  "networkUri": string,
  "priority": integer,
  "instanceTags": [
    string
  ]
}
Fields
routeType

enum (RouteType)

Type of route.
nextHopType

enum (NextHopType)

Type of next hop.
displayName

string

Name of a Compute Engine route.
uri

string

URI of a Compute Engine route. Dynamic route from cloud router does not have a URI. Advertised route from Google Cloud VPC to on-premises network also does not have a URI.
destIpRange

string

Destination IP range of the route.
nextHop

string

Next hop of the route.
networkUri

string

URI of a Compute Engine network.
priority

integer

Priority of the route.
instanceTags[]

string

Instance tags of the route.

RouteType

Type of route:

ROUTE_TYPE_UNSPECIFIED

Unspecified type. Default value.

SUBNET

Route is a subnet route automatically created by the system.

STATIC

Static route created by the user, including the default route to the Internet.

DYNAMIC

Dynamic route exchanged between BGP peers.

PEERING_SUBNET

A subnet route received from the peering network.

PEERING_STATIC

A static route received from the peering network.

PEERING_DYNAMIC

A dynamic route received from the peering network.

Enums
ROUTE_TYPE_UNSPECIFIED Unspecified type. Default value.
SUBNET Route is a subnet route automatically created by the system.
STATIC Static route created by the user including the default route to the Internet.
DYNAMIC Dynamic route exchanged between BGP peers.
PEERING_SUBNET A subnet route received from peering network.
PEERING_STATIC A static route received from peering network.
PEERING_DYNAMIC A dynamic route received from peering network.

NextHopType

Type of next hop:

NEXT_HOP_TYPE_UNSPECIFIED

Unspecified type. Default value.

NEXT_HOP_IP

Next hop is an IP address.

NEXT_HOP_INSTANCE

Next hop is a Compute Engine instance.

NEXT_HOP_NETWORK

Next hop is a VPC network gateway.

NEXT_HOP_PEERING

Next hop is a peering VPC.

NEXT_HOP_INTERCONNECT

Next hop is an interconnect.

NEXT_HOP_VPN_TUNNEL

Next hop is a VPN tunnel.

NEXT_HOP_VPN_GATEWAY

Next hop is a VPN Gateway. This scenario only happens when tracing connectivity from on premises to GCP through a VPN. The analysis simulates a packet departing from the on-premises network through a VPN tunnel and arrives at a Cloud VPN gateway.

NEXT_HOP_INTERNET_GATEWAY

Next hop is an internet gateway.

NEXT_HOP_BLACKHOLE

Next hop is a blackhole; that is, the next hop either does not exist or is not running.

NEXT_HOP_ILB

Next hop is the forwarding rule of an Internal Load Balancer.

Enums
NEXT_HOP_TYPE_UNSPECIFIED Unspecified type. Default value.
NEXT_HOP_IP Next hop is an IP address.
NEXT_HOP_INSTANCE Next hop is a Compute Engine instance.
NEXT_HOP_NETWORK Next hop is a VPC network gateway.
NEXT_HOP_PEERING Next hop is a peering VPC.
NEXT_HOP_INTERCONNECT Next hop is an interconnect.
NEXT_HOP_VPN_TUNNEL Next hop is a VPN tunnel.
NEXT_HOP_VPN_GATEWAY Next hop is a VPN Gateway. This scenario only happens when tracing connectivity from an on-premises network to GCP through a VPN. The analysis simulates a packet departing from the on-premises network through a VPN tunnel and arrives at a Cloud VPN gateway.
NEXT_HOP_INTERNET_GATEWAY Next hop is an internet gateway.
NEXT_HOP_BLACKHOLE Next hop is blackhole; that is, the next hop either does not exist or is not running.
NEXT_HOP_ILB Next hop is the forwarding rule of an Internal Load Balancer.

ForwardingRuleInfo

For display only. Metadata associated with a Compute Engine forwarding rule.

JSON representation 
{
  "displayName": string,
  "uri": string,
  "matchedProtocol": string,
  "matchedPortRange": string,
  "vip": string,
  "target": string,
  "networkUri": string
}
Fields
displayName

string

Name of a Compute Engine forwarding rule.
uri

string

URI of a Compute Engine forwarding rule.
matchedProtocol

string

Protocol defined in the forwarding rule that matches the test.
matchedPortRange

string

Port range defined in the forwarding rule that matches the test.
vip

string

VIP of the forwarding rule.
target

string

Target type of the forwarding rule.
networkUri

string

Network URI. Only valid for Internal Load Balancer.

VpnGatewayInfo

For display only. Metadata associated with a Compute Engine VPN gateway.

JSON representation 
{
  "displayName": string,
  "uri": string,
  "networkUri": string,
  "ipAddress": string,
  "vpnTunnelUri": string,
  "region": string
}
Fields
displayName

string

Name of a VPN gateway.
uri

string

URI of a VPN gateway.
networkUri

string

URI of a Compute Engine network where the VPN gateway is configured.
ipAddress

string

IP address of the VPN gateway.
vpnTunnelUri

string

A VPN tunnel that is associated with this VPN gateway. There may be multiple VPN tunnels configured on a VPN gateway, and only the one relevant to the test is displayed.
region

string

Name of a GCP region where this VPN gateway is configured.

VpnTunnelInfo

For display only. Metadata associated with a Compute Engine VPN tunnel.

JSON representation 
{
  "displayName": string,
  "uri": string,
  "sourceGateway": string,
  "remoteGateway": string,
  "remoteGatewayIp": string,
  "sourceGatewayIp": string,
  "networkUri": string,
  "region": string,
  "routingType": enum (RoutingType)
}
Fields
displayName

string

Name of a VPN tunnel.
uri

string

URI of a VPN tunnel.
sourceGateway

string

URI of the VPN gateway at local end of the tunnel.
remoteGateway

string

URI of a VPN gateway at remote end of the tunnel.
remoteGatewayIp

string

Remote VPN gateway's IP address.
sourceGatewayIp

string

Local VPN gateway's IP address.
networkUri

string

URI of a Compute Engine network where the VPN tunnel is configured.
region

string

Name of a GCP region where this VPN tunnel is configured.
routingType

enum (RoutingType)

Type of the routing policy.

RoutingType

Types of VPN routing policy. For details, refer to Networks and Tunnel routing.

ROUTING_TYPE_UNSPECIFIED

Unspecified type. Default value.

ROUTE_BASED

Route based VPN.

POLICY_BASED

Policy based routing.

DYNAMIC

Dynamic (BGP) routing.

Enums
ROUTING_TYPE_UNSPECIFIED Unspecified type. Default value.
ROUTE_BASED Route based VPN.
POLICY_BASED Policy based routing.
DYNAMIC Dynamic (BGP) routing.

DeliverInfo

Details of the final state "deliver" and associated resource.

JSON representation 
{
  "target": enum (Target),
  "resourceUri": string
}
Fields
target

enum (Target)

Target type where the packet is delivered to.
resourceUri

string

URI of the resource that the packet is delivered to.

Target

Deliver target types:

TARGET_UNSPECIFIED

Target not specified.

INSTANCE

Target is a Compute Engine instance.

INTERNET

Target is the Internet.

GOOGLE_API

Target is a Google API.

GKE_MASTER

Target is a Google Kubernetes Engine cluster master.

CLOUD_SQL_INSTANCE

Target is a Cloud SQL Instance.

Enums
TARGET_UNSPECIFIED Target not specified.
INSTANCE Target is a Compute Engine instance.
INTERNET Target is the Internet.
GOOGLE_API Target is a Google API.
GKE_MASTER Target is a Google Kubernetes Engine cluster master.
CLOUD_SQL_INSTANCE Target is a Cloud SQL instance.

ForwardInfo

Details of the final state "forward" and associated resource.

JSON representation 
{
  "target": enum (Target),
  "resourceUri": string
}
Fields
target

enum (Target)

Target type where this packet is forwarded to.
resourceUri

string

URI of the resource that the packet is forwarded to.

Target

Forward target types.

TARGET_UNSPECIFIED

Target not specified.

PEERING_VPC

Forwarded to a VPC peering network.

VPN_GATEWAY

Forwarded to a Cloud VPN gateway.

INTERCONNECT

Forwarded to an Cloud Interconnect connection.

GKE_MASTER

Forwarded to a Google Kubernetes Engine Container cluster master.

IMPORTED_CUSTOM_ROUTE_NEXT_HOP

Forwarded to the next hop of a custom route imported from a peering VPC.

CLOUD_SQL_INSTANCE

Forwarded to a Cloud SQL Instance.

Enums
TARGET_UNSPECIFIED Target not specified.
PEERING_VPC Forwarded to a VPC peering network.
VPN_GATEWAY Forwarded to a Cloud VPN gateway.
INTERCONNECT Forwarded to an Cloud Interconnect connection.
GKE_MASTER Forwarded to a Google Kubernetes Engine Container cluster master.
IMPORTED_CUSTOM_ROUTE_NEXT_HOP Forwarded to the next hop of a custom route imported from a peering VPC.
CLOUD_SQL_INSTANCE Forwarded to a Cloud SQL Instance.

AbortInfo

Details of the final state "abort" and associated resource.

JSON representation 
{
  "cause": enum (Cause),
  "resourceUri": string
}
Fields
cause

enum (Cause)

Causes that the analysis is aborted.
resourceUri

string

URI of the resource that caused the abort.

Cause

Abort cause types:

CAUSE_UNSPECIFIED

Cause is unspecified.

UNKNOWN_NETWORK

Aborted due to unknown network. The reachability analysis cannot proceed because the user does not have access to the host project's network configurations, including firewall rules and routes. This happens when the project is a service project and the endpoints being traced are in the host project's network.

UNKNOWN_IP

Aborted because the IP address(es) are unknown.

UNKNOWN_PROJECT

Aborted because no project information can be derived from the test input.

PERMISSION_DENIED

Aborted because the user lacks the permission to access all or part of the network configurations required to run the test.

NO_SOURCE_LOCATION

Aborted because no valid source endpoint is derived from the input test request.

INVALID_ARGUMENT

Aborted because the source and/or destination endpoint specified in the test are invalid. The possible reasons that an endpoint is invalid include: malformed IP address; nonexistent instance or network URI; IP address not in the range of specified network URI; and instance not owning the network interface in the specified network.

NO_EXTERNAL_IP

Aborted because traffic is sent from a public IP to an instance without an external IP.

UNINTENDED_DESTINATION

Aborted because none of the traces matches destination information specified in the input test request.

TRACE_TOO_LONG

Aborted because the number of steps in the trace exceeds a certain limit which may be caused by routing loop.

INTERNAL_ERROR

Aborted due to internal server error.

Enums
CAUSE_UNSPECIFIED Cause is unspecified.
UNKNOWN_NETWORK Aborted due to unknown network. The reachability analysis cannot proceed because the user does not have access to the host project's network configurations, including firewall rules and routes. This happens when the project is a service project and the endpoints being traced are in the host project's network.
UNKNOWN_IP Aborted because the IP address(es) are unknown.
UNKNOWN_PROJECT Aborted because no project information can be derived from the test input.
PERMISSION_DENIED Aborted because the user lacks the permission to access all or part of the network configurations required to run the test.
NO_SOURCE_LOCATION Aborted because no valid source endpoint is derived from the input test request.
INVALID_ARGUMENT Aborted because the source and/or destination endpoint specified in the test are invalid. The possible reasons that an endpoint is invalid include: malformed IP address; nonexistent instance or network URI; IP address not in the range of specified network URI; and instance not owning the network interface in the specified network.
NO_EXTERNAL_IP Aborted because traffic is sent from a public IP to an instance without an external IP.
UNINTENDED_DESTINATION Aborted because none of the traces matches destination information specified in the input test request.
TRACE_TOO_LONG Aborted because the number of steps in the trace exceeding a certain limit which may be caused by routing loop.
INTERNAL_ERROR Aborted due to internal server error.

DropInfo

Details of the final state "drop" and associated resource.

JSON representation 
{
  "cause": enum (Cause),
  "resourceUri": string
}
Fields
cause

enum (Cause)

Cause that the packet is dropped.
resourceUri

string

URI of the resource that caused the drop.

Cause

Drop cause types:

CAUSE_UNSPECIFIED

Cause is unspecified.

UNKNOWN_EXTERNAL_ADDRESS

Destination external address cannot be resolved to a known target. If the address is used in a GCP project, provide the project ID as test input.

FOREIGN_IP_DISALLOWED

A Compute Engine instance can only send or receive a packet with a foreign IP if

ip_forward

is enabled.

FIREWALL_RULE

Dropped due to a firewall rule, unless allowed due to connection tracking.

NO_ROUTE

Dropped due to no routes.

ROUTE_BLACKHOLE

Dropped due to invalid route. Route's next hop is a blackhole.

ROUTE_WRONG_NETWORK

Packet is sent to a wrong (unintended) network. Example: you trace a packet from VM1:Network1 to VM2:Network2, however, the route configured in Network1 sends the packet destined for VM2's IP addresss to Network3.

PRIVATE_TRAFFIC_TO_INTERNET

Packet with internal destination address sent to Internet gateway.

PRIVATE_GOOGLE_ACCESS_DISALLOWED

Instance with only internal IP tries to access Google API and Services, but private Google access is not enabled.

NO_EXTERNAL_ADDRESS

Instance with only an internal IP tries to access external hosts, but Cloud NAT is not enabled in the subnet, unless special configurations on a VM allows this connection. See Special Configurations for VM instances for details.

UNKNOWN_INTERNAL_ADDRESS

Destination internal address cannot be resolved to a known target. If this is a shared VPC scenario, verify if the service project ID is provided as test input. Otherwise, verify if the IP address is being used in the project.

FORWARDING_RULE_MISMATCH

Forwarding rule's protocol and ports do not match the packet header.

FORWARDING_RULE_NO_INSTANCES

Forwarding rule does not have backends configured.

FIREWALL_BLOCKING_LOAD_BALANCER_BACKEND_HEALTH_CHECK

Firewalls block the health check probes to the backends and cause the backends to be unavailable for traffic from the load balancer. See Health check firewall rules for more details.

INSTANCE_NOT_RUNNING

Packet sent from or to a Compute Engine instance that is not in a running state.

TRAFFIC_TYPE_BLOCKED

The type of traffic is blocked and the user cannot configure a firewall rule to enable it. See Always blocked traffic for more details.

GKE_MASTER_UNAUTHORIZED_ACCESS

Access to the Google Kubernetes Engine cluster master's endpoint is not authorized. See Access to the master for more details.

CLOUD_SQL_INSTANCE_UNAUTHORIZED_ACCESS

Access to the Cloud SQL instance is not authorized. See Authorizing with authorized networks for more details.

DROPPED_INSIDE_GKE_SERVICE

Packet was dropped inside Google Kubernetes Engine Service.

DROPPED_INSIDE_CLOUD_SQL_SERVICE

Packet was dropped inside Cloud SQL Service.

Enums
CAUSE_UNSPECIFIED Cause is unspecified.
UNKNOWN_EXTERNAL_ADDRESS Destination external address cannot be resolved to a known target.
FOREIGN_IP_DISALLOWED

a Compute Engine instance can only send or receive a packet with a foreign IP

if ip_forward

is enabled.
FIREWALL_RULE Dropped due to a firewall rule unless allowed due to connection tracking.
NO_ROUTE Dropped due to no routes.
ROUTE_BLACKHOLE Dropped due to invalid route. Route's next hop is a blackhole.
ROUTE_WRONG_NETWORK Packet is sent to a wrong (unintended) network. Example: user traces a packet from VM1:Network1 to VM2:Network2, however, the route configured in Network1 sends the packet destined for VM2's IP addresss to Network3.
PRIVATE_TRAFFIC_TO_INTERNET Packet with internal destination address sent to Internet gateway.
PRIVATE_GOOGLE_ACCESS_DISALLOWED Instance with only an internal IP tries to access Google API and Services, and private Google access is not enabled.
NO_EXTERNAL_ADDRESS Instance with only internal IP tries to access external hosts, but Cloud NAT is not enabled in the subnet, unless special configurations on a VM allows this connection. See Special Configurations for VM instances for details.
UNKNOWN_INTERNAL_ADDRESS Destination internal address cannot be resolved to a known target.
FORWARDING_RULE_MISMATCH Forwarding rule's protocol and ports do not match the packet header.
FORWARDING_RULE_NO_INSTANCES Forwarding rule does not have backends configured.
FIREWALL_BLOCKING_LOAD_BALANCER_BACKEND_HEALTH_CHECK Firewalls block the health check probes to the backends and cause the backends to be unavailable for traffic from the load balancer. See Health check firewall rules for more details.
INSTANCE_NOT_RUNNING Packet is sent from or to a Compute Engine instance that is not in a running state.
TRAFFIC_TYPE_BLOCKED The type of traffic is blocked and the user cannot configure a firewall rule to enable it. See Always blocked traffic for more details.
GKE_MASTER_UNAUTHORIZED_ACCESS Access to Google Kubernetes Engine cluster master's endpoint is not authorized. See Access to the master for more details.
CLOUD_SQL_INSTANCE_UNAUTHORIZED_ACCESS Access to the Cloud SQL instance endpoint is not authorized. See Authorizing with authorized networks for more details.
DROPPED_INSIDE_GKE_SERVICE Packet was dropped inside Google Kubernetes Engine Service.
DROPPED_INSIDE_CLOUD_SQL_SERVICE Packet was dropped inside Cloud SQL Service.

LoadBalancerInfo

For display only. Metadata associated with a load balancer.

JSON representation 
{
  "loadBalancerType": enum (LoadBalancerType),
  "healthCheckUri": string,
  "backends": [
    {
      object (LoadBalancerBackend)
    }
  ],
  "backendType": enum (BackendType),
  "backendUri": string
}
Fields
loadBalancerType

enum (LoadBalancerType)

Type of the load balancer.
healthCheckUri

string

URI of the health check for the load balancer.
backends[]

object (LoadBalancerBackend)

Information for the loadbalancer backends.
backendType

enum (BackendType)

Type of load balancer's backend configuration.
backendUri

string

Backend configuration URI.

LoadBalancerType

The type definition for a load balancer:

LOAD_BALANCER_TYPE_UNSPECIFIED

Type is unspecified.

INTERNAL_TCP_UDP

Internal TCP/UDP load balancer.

NETWORK_TCP_UDP

Network TCP/UDP load balancer.

HTTP_PROXY

HTTP(S) proxy load balancer.

TCP_PROXY

TCP proxy load balancer.

SSL_PROXY

SSL proxy load balancer.

Enums
LOAD_BALANCER_TYPE_UNSPECIFIED Type is unspecified.
INTERNAL_TCP_UDP Internal TCP/UDP load balancer.
NETWORK_TCP_UDP Network TCP/UDP load balancer.
HTTP_PROXY HTTP(S) proxy load balancer.
TCP_PROXY TCP proxy load balancer.
SSL_PROXY SSL proxy load balancer.

LoadBalancerBackend

For display only. Metadata associated with a specific load balancer backend.

JSON representation 
{
  "displayName": string,
  "uri": string,
  "healthCheckFirewallState": enum (HealthCheckFirewallState),
  "healthCheckAllowingFirewallRules": [
    string
  ],
  "healthCheckBlockingFirewallRules": [
    string
  ]
}
Fields
displayName

string

Name of a Compute Engine instance or network endpoint.
uri

string

URI of a Compute Engine instance or network endpoint.
healthCheckFirewallState

enum (HealthCheckFirewallState)

State of the health check firewall configuration.
healthCheckAllowingFirewallRules[]

string

A list of firewall rule URIs allowing probes from health check IP ranges.
healthCheckBlockingFirewallRules[]

string

A list of firewall rule URIs blocking probes from health check IP ranges.

HealthCheckFirewallState

State of a health check firewall configuration:

HEALTH_CHECK_FIREWALL_STATE_UNSPECIFIED

State is unspecified. Default state if not populated.

CONFIGURED

There are configured firewall rules to allow health check probes to the backend.

MISCONFIGURED

There are firewall rules configured to allow partial health check ranges or block all health check ranges. If a health check probe is sent from denied IP ranges, the health check to the backend will fail. Then, the backend will be marked unhealthy and will not receive traffic sent to the load balancer.

Enums
HEALTH_CHECK_FIREWALL_STATE_UNSPECIFIED State is unspecified. Default state if not populated.
CONFIGURED There are configured firewall rules to allow health check probes to the backend.
MISCONFIGURED There are firewall rules configured to allow partial health check ranges or block all health check ranges. If a health check probe is sent from denied IP ranges, the health check to the backend will fail. Then, the backend will be marked unhealthy and will not receive traffic sent to the load balancer.

BackendType

The type definition for a load balancer backend configuration:

BACKEND_TYPE_UNSPECIFIED

Type is unspecified.

BACKEND_SERVICE

Backend Service as the load balancer's backend.

TARGET_POOL

Target Pool as the load balancer's backend.

Enums
BACKEND_TYPE_UNSPECIFIED Type is unspecified.
BACKEND_SERVICE Backend Service as the load balancer's backend.
TARGET_POOL Target Pool as the load balancer's backend.

NetworkInfo

For display only. Metadata associated with a Compute Engine network.

JSON representation 
{
  "displayName": string,
  "uri": string,
  "matchedIpRange": string
}
Fields
displayName

string

Name of a Compute Engine network.
uri

string

URI of a Compute Engine network.
matchedIpRange

string

The IP range that matches the test.

GKEMasterInfo

For display only. Metadata associated with a Google Kubernetes Engine cluster master.

JSON representation 
{
  "clusterUri": string,
  "clusterNetworkUri": string,
  "internalIp": string,
  "externalIp": string
}
Fields
clusterUri

string

URI of a Google Kubernetes Engine cluster.
clusterNetworkUri

string

URI of a Google Kubernetes Engine cluster network.
internalIp

string

Internal IP address of a Google Kubernetes Engine cluster master.
externalIp

string

External IP address of a Google Kubernetes Engine cluster master.

CloudSQLInstanceInfo

For display only. Metadata associated with a Cloud SQL instance.

JSON representation 
{
  "displayName": string,
  "uri": string,
  "networkUri": string,
  "internalIp": string,
  "externalIp": string,
  "region": string
}
Fields
displayName

string

Name of a Cloud SQL instance.
uri

string

URI of a Cloud SQL instance.
networkUri

string

URI of a Cloud SQL instance network or empty string if instance does not have one.
internalIp

string

Internal IP address of Cloud SQL instance.
externalIp

string

External IP address of Cloud SQL instance.
region

string

Region in which the Cloud SQL instance is running.

Methods

create

 Creates a new Connectivity Test.

delete

 Deletes a specific ConnectivityTest.

get

 Gets the details of a specific Connectivity Test.

getIamPolicy

 Gets the access control policy for a resource.

list

 Lists all Connectivity Tests owned by a project.

patch

 Updates the configuration of an existing ConnectivityTest.

rerun

 Rerun an existing ConnectivityTest.

setIamPolicy

 Sets the access control policy on the specified resource.

testIamPermissions

 Returns permissions that a caller has on the specified resource.