Google Cloud プロダクトが、インターネットではなく Google のプライベート ネットワーク経由で、お客様のプライベート ネットワーク内の 1 つ以上の HTTP(S) エンドポイントにアクセスできるようにします。また、VPC Service Controls に準拠したオプションも用意されています。この通信は、HTTP Push などの機能を使用して、セキュリティの強化、ネットワーク セキュリティ ポリシーの管理、データの漏洩防止に役立ちます。 Google Cloud
次の図は、Dialogflow がプライベート ネットワーク アクセスを使用せずにインターネット経由でGoogle Cloud VM に接続する方法を示しています。Dialogflow は Google Cloud内で実行されます。
限定公開ネットワークへのアクセスのない Dialogflow 接続(クリックして拡大)
次の図は、Dialogflow がプライベート ネットワーク アクセスを使用してプライベート ネットワーク経由でGoogle Cloud VM に接続する方法を示しています。
プライベート ネットワーク アクセスを使用する Google Cloud サービスの呼び出しは、割り当てにはカウントされません。
Service Directory の料金は、プライベート ネットワーク アクセスを使用するGoogle Cloud サービスからの呼び出しに適用されます。Service Directory の料金は Service Directory サービスに対する API 呼び出しごとに発生するため、各プライベート ネットワーク アクセスは 1 つの API 呼び出しとして課金されます。
[[["わかりやすい","easyToUnderstand","thumb-up"],["問題の解決に役立った","solvedMyProblem","thumb-up"],["その他","otherUp","thumb-up"]],[["わかりにくい","hardToUnderstand","thumb-down"],["情報またはサンプルコードが不正確","incorrectInformationOrSampleCode","thumb-down"],["必要な情報 / サンプルがない","missingTheInformationSamplesINeed","thumb-down"],["翻訳に関する問題","translationIssue","thumb-down"],["その他","otherDown","thumb-down"]],["最終更新日 2025-09-04 UTC。"],[],[],null,["# Private network access overview\n\nPrivate network access enables supported Google Cloud products to send HTTP requests\nto a customer Virtual Private Cloud (VPC) network resource. The requests are sent\nover the private network while enforcing\n[Identity and Access Management (IAM)](/iam/docs/overview) and\n[VPC Service Controls](/vpc-service-controls/docs/overview).\n\nThe network resources supported as destinations are:\n\n- Virtual machine (VM) instances\n- Internal passthrough Network Load Balancers\n- Regional internal Application Load Balancers\n- On-premises IP addresses, reached through Cloud Interconnect or Cloud VPN\n\nWith [Private Service Connect](/vpc/docs/private-service-connect), you\ncan create private endpoints within your VPC network by using\ninternal IP addresses. Private network access extends the capability and helps\nGoogle Cloud services connect directly to VPC networks.\n\nPrivate network access offers the following features:\n\n- Provides a unified way of managing customer network, security, and access policies applied to all network paths.\n- Enables Google Cloud products to reach one or more HTTP(S) endpoints in customer private networks through the private network of Google rather than the internet. It also provides a VPC Service Controls-compliant option. The communication helps in providing better security, managing network security policies, and protecting against exfiltration while using Google Cloud features such as [HTTP\n Push](https://wikipedia.org/wiki/HTTP/2_Server_Push).\n\nThe following diagram shows how Dialogflow connects to a\nGoogle Cloud VM through the internet without private network access. Note that\nDialogflow runs within Google Cloud.\n[](/static/service-directory/images/without_pna.svg) Dialogflow connectivity without private network access (click to enlarge)\n\nThe following diagram shows how Dialogflow connects to a\nGoogle Cloud VM through the private network with private network access.\n[](/static/service-directory/images/with_pna.svg) Dialogflow connectivity with private network access (click to enlarge)\n\nFor detailed information about VPC Service Controls, see the [VPC Service Controls\ndocumentation](/vpc-service-controls/docs).\n\nFor information about how to configure private network access, see [Configuring\nprivate network access](/service-directory/docs/configuring-private-network-access).\n\nFor information about how you can use Service Directory private network access with\nDialogflow, see [Using Service Directory for\nprivate network access](/dialogflow/cx/docs/concept/webhook#sd).\n\nQuotas and limits\n-----------------\n\nThe following quotas and limits apply for private network access:\n\n- [Service Directory limits](/service-directory/quotas#limits) apply when you use private network access.\n- Calls from Google Cloud services that use private network access don't count against your quotas.\n- [Service Directory pricing](/service-directory/pricing) applies for calls from Google Cloud services that use private network access. Because Service Directory charges are per API call against the Service Directory service, each private network access is charged as one API call.\n\nWhat's next\n-----------\n\n- To learn about Service Directory, see [Service Directory\n overview](/service-directory/docs/overview).\n- To learn how to configure private network access, see [Configure\n private network access](/service-directory/docs/configuring-private-network-access).\n- To find solutions for common problems that you might experience when using Service Directory, see [Troubleshooting](/service-directory/docs/troubleshooting)."]]