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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-08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 documentation for the \u003ccode\u003eIPProtocolEnum\u003c/code\u003e within the \u003ccode\u003eGoogle.Cloud.Compute.V1\u003c/code\u003e namespace, detailing the different IP protocols supported by forwarding rules.\u003c/p\u003e\n"],["\u003cp\u003eThe latest version of the \u003ccode\u003eIPProtocolEnum\u003c/code\u003e documented is 3.6.0, and this page also lists a range of previous versions from 3.5.0 down to 1.0.0.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eIPProtocolEnum\u003c/code\u003e supports protocols like TCP, UDP, ESP, AH, SCTP, ICMP, and L3_DEFAULT, with specific valid protocols varying by load balancing product.\u003c/p\u003e\n"],["\u003cp\u003eThere is an \u003ccode\u003eUndefinedIPProtocolEnum\u003c/code\u003e field, indicating whether the enum field has been defined.\u003c/p\u003e\n"],["\u003cp\u003eThe fields of the enum consist of \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, \u003ccode\u003eUdp\u003c/code\u003e, and \u003ccode\u003eUndefinedIPProtocolEnum\u003c/code\u003e, all detailed within the assembly \u003ccode\u003eGoogle.Cloud.Compute.V1.dll\u003c/code\u003e.\u003c/p\u003e\n"]]],[],null,[]]