EthernetBuiltIn Usage EthernetJ11d

I’m using the EthernetBuiltIn
wanted to verify the right usage of it.
should I initialize the EthenernetJ11D in addition or only initialize directly the EthenernetBuiltIn? or is it ok to initialize only the EtherntBuiltIn?
In addition I’m using static IP is it required to call EnableStaticIP ? or can it be left without this call?
(for network configuration I use GHI Config Tool)