Class GatewayAuthMethod (2.9.0)

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The gateway authorization/authentication method. This setting determines how Cloud IoT Core authorizes/authenticate devices to access the gateway.

Values: GATEWAY_AUTH_METHOD_UNSPECIFIED (0): No authentication/authorization method specified. No devices are allowed to access the gateway. ASSOCIATION_ONLY (1): The device is authenticated through the gateway association only. Device credentials are ignored even if provided. DEVICE_AUTH_TOKEN_ONLY (2): The device is authenticated through its own credentials. Gateway association is not checked. ASSOCIATION_AND_DEVICE_AUTH_TOKEN (3): The device is authenticated through both device credentials and gateway association. The device must be bound to the gateway and must provide its own credentials.