You'll want to make the TLS configuration setting with the iDRACs. I'm not seeing any location to make TLS setting changes in the manual, I know the DRAC web UI does.    If you need OMIVV to specifically reject any connection below 1.2, we'll need to do a feature request. I can get that submitted, but I'd need to ask you a couple questions that would probably be more appropriate in a direct message.
Hi, We have a policy/requirement to encrypt all network traffic at a minimum of TLS 1.2. I am trying to find out how to explicitly prevent our OpenManage vCenter Integration appliance accepting TLS1.1 or lower.   Thanks
How to disable TLS 1.1 on Dell OpenMange Integration Virtual Appliance ve5.x