1
一部のサービスには、Google の本番環境インフラストラクチャで実行され、IPv6 クライアントからアクセスできる管理 API がありますが、この API は IPv6 クライアントからアクセスできない VPC ホスト型リソースを作成します。たとえば、Memorystore for Memcached の管理 API は memcache.googleapis.com にあります。この API を使用すると、Memorystore for Memcached インスタンスに対して一部の管理タスクを実行できますが、Memorystore for Memcached インスタンスにアクセスするには、プライベート サービス アクセスを使用する必要があります。
アプリケーション サービスと IPv6 に関するその他の詳細
Google API とサービスには、次の 2 種類があります。
Google の本番環境インフラストラクチャで実行されるサービス（すべての *.googleapis.com サービス エンドポイントを含む）。
[[["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,["# IPv6 support in Google Cloud\n============================\n\nThis document describes which services in Google Cloud include support for IPv6.\n\nIPv6 has a much larger address space than IPv4, with 128 bits per address. IPv6\nhas many more addresses available than IPv4 does, which helps mitigate the\ngrowing shortage of IPv4 addresses.\n\nIPv6 support is widely available in Google Cloud through dual-stack\n(IPv4 and IPv6) and IPv6-only compute and networking services. You can\ndeploy dual-stack and IPv6-only subnets, which lets you deploy IPv6 workloads.\n\nYou can control IPv6 configurations by using organization policy constraints\nas described in the\n[organization policy constraints](/vpc/docs/vpc#org-policies)\nsection of the VPC networks overview.\n| **Note:** IPv6 functionality is available only in [Premium Tier](/network-tiers/docs/overview#resources).\n\nCore compute and networking services\n------------------------------------\n\nThe following table summarizes support for IPv6 in core compute and\nnetworking services in Google Cloud.\n\nIf a service has an IP stack type configuration option, the table lists the\nsupported stack types. The IPv6-only\nstack type is available for some services where marked in the table. If a\nservice doesn't have a stack type configuration option, the table lists\nnot applicable (N/A).\n\nFor more information about a given service, see the corresponding documentation.\n\n^1^ See the following limitations:\n\n- IPv6-only instances support only Debian and Ubuntu [operating systems](/compute/docs/images/os-details).\n- IPv6-only instances don't support Compute Engine [Internal DNS](/compute/docs/internal-dns). \n^2^ For MIGs, the autohealing endpoint supports only IPv4. \n^3^ VPC Network Peering and Cloud Interconnect VLAN attachments themselves can only be configured as dual-stack and not IPv6-only. However, when configured as dual-stack they are compatible with IPv6-only resources such as subnets and instances. \n^4^ For NAT64, Public NAT supports second generation or earlier VM instances and M3 VM instances. For more information, see [Compute Engine terminology](/compute/docs/machine-resource#vm_terminology). \n^5^ Cloud DNS doesn't support IPv6 for inbound forwarding. \n^6^ IPv6-only support is limited to unmanaged instance group backends and protocol forwarding with IPv6-only target instances.\n\nApplication services\n--------------------\n\nThe following table summarizes support for IPv6 in commonly used Google\nAPIs and services.\n\nFor services that support private IPv6 access, private access from IPv6 clients\nis supported by\n[Private Google Access](/vpc/docs/configure-private-google-access).\n\nFor more information, see\n[Additional details about application services and IPv6](#additional-details).\n\n^1^ Some products have an administrative API that runs on Google's production infrastructure and can be accessed by IPv6 clients, but the API creates VPC-hosted resources that can't be accessed by IPv6 clients. For example, Memorystore for Memcached has an administrative API at `memcache.googleapis.com`. Using this API lets you perform some administrative tasks for your Memorystore for Memcached instances, but you must use [private services access](/memorystore/docs/memcached/networking#private_services_access) to access the Memorystore for Memcached instances.\n\n### Additional details about application services and IPv6\n\nThere are two varieties of Google APIs and services:\n\n- Services that run on Google's production infrastructure, including all `*.googleapis.com` service endpoints.\n- Services that run in VPC networks that are run by Google (also known as *VPC-hosted services*), such as Cloud SQL and Filestore.\n\nMost services that run on Google's production infrastructure support access by\nclients with IPv6 addresses:\n\n- Public access from IPv6 clients is supported.\n\n- Private access from IPv6 clients is supported through the following methods:\n\n - [Private Google Access](/vpc/docs/private-google-access). For more\n information, including supported services, see [Domain\n options](/vpc/docs/configure-private-google-access#domain-options).\n\n - [Private Service Connect\n endpoints](/vpc/docs/about-accessing-regional-google-apis-endpoints) for\n [regional Google APIs](/vpc/docs/regional-service-endpoints). This type\n of endpoint can be configured with either an IPv4 or IPv6\n address---you must configure an IPv6 address to let IPv6 clients use\n it.\n\n However, you can't use [Private Service Connect endpoints for\n global Google APIs](/vpc/docs/about-accessing-google-apis-endpoints)\n to access services from IPv6 clients. This type of endpoint can be\n configured with an IPv4 address only.\n\nFor more information about services that run on Google's infrastructure, see the\n[Google APIs Explorer](https://developers.google.com/apis-explorer).\n\nFor VPC-hosted services, support for access by IPv6 clients\ndepends on the [private access option](/vpc/docs/private-access-options) that\nyou use:\n\n- You can create IPv6 Private Service Connect endpoints to let clients with IPv6 addresses [access published services](/vpc/docs/about-accessing-vpc-hosted-services-endpoints).\n- Private services access doesn't support access by clients that have IPv6 addresses. For more information, see the [Supported services](/vpc/docs/private-services-access#private-services-supported-services) in the private services access documentation."]]
