Host restored to factory network settings

Products

• VMware vSphere ESXi

Issue/Introduction

Summary

Using the Direct Console User Interface (DCUI), a user restored the host's networking settings to the factory default settings.

Example

Selecting the "Reset System Configuration"option from the DCUI, it resets the configuration details.

Impact

Resetting a host's network settings to factory default settings has the following results:

• All existing vSwitches, port groups, and vmknics are removed on the host.
• The host is assigned a new IP address.
• The host becomes inaccessible from vCenter Server due to the change in the IP address.
• Networking of all virtual machines on the ESXi host is affected.

NOTE:In VMware ESXi 6.x  -- Back up the configuration using the vSphere CLI vicfg-cfgbackup command before executing - For 6,x refer to VMware Documentation
In VMware ESXi 7.0 - Back up the configuration by using the Get-VMHostFirmware PowerCLI cmdlet. For 7.0 refer to VMware Documentation

Environment

VMware vSphere ESXi 6.0
VMware vSphere ESXi 7.0.0
VMware vSphere ESXi 6.5
VMware vSphere ESXi 6.7

Resolution

Log in as administrator and use the host's new IP address to re-establish the connection from vCenter Server to the host.