Knowledge BaseTroubleshootingLoad balancer VIP is unreachable through ICMP

Load balancer VIP is unreachable through ICMP

TroubleshootingZCF · CloudVersions3.x-5.5.30Article IDKB-100373Updated2026-08-19

Issue/Introduction

This article describes how to troubleshoot a load balancer VIP that is unreachable through ICMP. It applies to the initial diagnosis and resolution of similar issues in ZStack Cloud.

Environment

  • Product: ZCF
  • Component: Cloud
  • Version: 3.x-5.5.30

Symptoms

The load balancer VIP does not respond to Ping.

Possible causes

The default security rules of the VPC vRouter reject

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Load balancer VIP is unreachable through ICMP | KB-100373 | ZStack Resource Center