Updating all firmware (idrac, BIOS, etc) on PowerEdge R830

Hey folks, I am new to doing firmware upgrades, and I have to do it on a Dell PowerEdge R830 in production.

I'm getting conflicting reports on the best way to go about this.

Most recently I was looking at the Life Cycle Controller way (hitting F10 on boot).

However, I am not sure how to set up the network settings for this.

It asks for a NIC to use and then IP address settings (mask, gateway etc)

So which NIC should I select for this, and does that mean I have to plug another NIC into a switch?

How do I select the IP address?  Use something in the same subnet as the host IP or the idrac IP?

 

I know these questions probably seem basic to many of you, but I appreciate any help.  I don't want to blow up production.  Also, this host is in DMZ, so I will have to provide an IP to the network team to allow connections out to downloads.dell.com on https or whatever method is best (not FTP, not allowed).

Thanks!