The etcdClientComm / etcdPeerComm firewall rules are enabled on some ESXi hosts.

Products

• VMware vSphere ESXi 8.0

Issue/Introduction

• The etcdClientComm / etcdPeerComm firewall rules are enabled on some ESXi hosts in the cluster.
• There is a mixture of enabled and disabled hosts.

Environment

ESXi 8.0

Cause

The etcdClientComm / etcdPeerComm firewall rules are enabled on hosts with the etcd service enabled.

Resolution

This is expected behavior and no action is required.
The etcd service is automatically enabled on some hosts in the cluster, and therefore the firewall rules are automatically enabled on those hosts.
Note that the firewall rules are disabled when the ESXi host is shut down.

Additional Information

Japanese KB: クラスタ内の ESXi ホストで etcdClientComm / etcdPeerComm のファイアウォールルールが有効化されているホストがある