Find the correct version of Dell OpenManageServer Administrator vSphere Installation Bundle (VIB)

This will depend on your VMware ESXi Version for us it was 6  so this

Extract the .vib , and open VSphere VClient , navigate to the datastore explorer and use the gui to upload the file here

Enable SSH on the ESXi Server

Login to the server via putty as root

Run the below

Source code

esxcli software vib install -v /vmfs/volumes/%Datastorename%/%nameofvib%.vib

After installing you need to reboot the ESXi Server

Download the Download OpenManage Server Administrator Managed Node with the Same version as your VIB. For us it was 8.1 per below

click this link:  http://www.dell.com/support/home/us/en/19/Drivers/DriversDetails?driverId=20V28

Install this on a machine which has network access to the ESXi Management IP

After installing , open the OpenManage Server administrator

Enter the  ESXi Management IP and Vmware username and password

Tick the Ignore certificate warnings

It should log you in , and you can edit the iDrac settings via Remote Access