There are configured firewall rules to allow health check probes to the
backend.
Misconfigured
There are firewall rules configured to allow partial health check ranges
or block all health check ranges.
If a health check probe is sent from denied IP ranges,
the health check to the backend will fail. Then, the backend will be
marked unhealthy and will not receive traffic sent to the load balancer.
Unspecified
State is unspecified. Default state if not populated.
[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-12 UTC."],[[["\u003cp\u003eThis webpage provides reference documentation for the \u003ccode\u003eLoadBalancerBackend.Types.HealthCheckFirewallState\u003c/code\u003e enum in the Google Cloud Network Management v1 API.\u003c/p\u003e\n"],["\u003cp\u003eThe latest version documented is 2.13.0, and historical versions back to 1.0.0 are available for reference.\u003c/p\u003e\n"],["\u003cp\u003eThe enum defines three possible states for health check firewall configuration: \u003ccode\u003eConfigured\u003c/code\u003e, \u003ccode\u003eMisconfigured\u003c/code\u003e, and \u003ccode\u003eUnspecified\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThese states describe whether firewall rules are properly set up to allow health check probes, partially allow them, or if the state is not specified.\u003c/p\u003e\n"],["\u003cp\u003eIncorrect firewall configuration may lead to the backend being marked as unhealthy.\u003c/p\u003e\n"]]],[],null,[]]