Reference documentation and code samples for the Compute Engine v1 API enum UsableSubnetwork.Types.StackType.
The stack type for the subnet. If set to IPV4_ONLY, new VMs in the subnet are assigned IPv4 addresses only. If set to IPV4_IPV6, new VMs in the subnet can be assigned both IPv4 and IPv6 addresses. If not specified, IPV4_ONLY is used. This field can be both set at resource creation time and updated using patch.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-08 UTC."],[[["\u003cp\u003eThis page provides reference documentation for the \u003ccode\u003eUsableSubnetwork.Types.StackType\u003c/code\u003e enum within the Compute Engine v1 API, detailing how it manages IP address assignments for virtual machines (VMs).\u003c/p\u003e\n"],["\u003cp\u003eThe latest version of the documentation is 3.6.0, and a history of versions from 1.0.0 to 3.6.0 are accessible.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eStackType\u003c/code\u003e enum defines three possible states: \u003ccode\u003eIpv4Ipv6\u003c/code\u003e where new VMs can receive both IPv4 and IPv6 addresses, \u003ccode\u003eIpv4Only\u003c/code\u003e where new VMs will only receive IPv4 addresses, and \u003ccode\u003eUndefinedStackType\u003c/code\u003e to indicate when the enum is not set.\u003c/p\u003e\n"],["\u003cp\u003eThe enum \u003ccode\u003eStackType\u003c/code\u003e is a part of the namespace \u003ccode\u003eGoogle.Cloud.Compute.V1\u003c/code\u003e and is contained within the \u003ccode\u003eGoogle.Cloud.Compute.V1.dll\u003c/code\u003e assembly.\u003c/p\u003e\n"],["\u003cp\u003eThe default \u003ccode\u003eStackType\u003c/code\u003e is \u003ccode\u003eIPV4_ONLY\u003c/code\u003e if nothing is specified, and can be set and/or updated upon creation or using a patch.\u003c/p\u003e\n"]]],[],null,[]]