Reference documentation and code samples for the Compute Engine v1 API enum ForwardingRule.Types.IPProtocolEnum.
The IP protocol to which this rule applies. For protocol forwarding, valid options are TCP, UDP, ESP, AH, SCTP, ICMP and L3_DEFAULT. The valid IP protocols are different for different load balancing products as described in Load balancing features.
[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-08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 webpage provides reference documentation for the \u003ccode\u003eForwardingRule.Types.IPProtocolEnum\u003c/code\u003e enum within the Google Cloud Compute Engine v1 API.\u003c/p\u003e\n"],["\u003cp\u003eThe latest version of the API documented is 3.6.0, with multiple previous versions available, ranging back to version 1.0.0.\u003c/p\u003e\n"],["\u003cp\u003eThis enum defines the valid IP protocols for forwarding rules, which are \u003ccode\u003eAh\u003c/code\u003e, \u003ccode\u003eEsp\u003c/code\u003e, \u003ccode\u003eIcmp\u003c/code\u003e, \u003ccode\u003eL3Default\u003c/code\u003e, \u003ccode\u003eSctp\u003c/code\u003e, \u003ccode\u003eTcp\u003c/code\u003e, and \u003ccode\u003eUdp\u003c/code\u003e, along with \u003ccode\u003eUndefinedIPProtocolEnum\u003c/code\u003e to indicate when the field is not set.\u003c/p\u003e\n"],["\u003cp\u003eThe documentation also references the different valid IP protocols for various load balancing products as described in the load balancing features on Google Cloud.\u003c/p\u003e\n"]]],[],null,[]]