Broadcom SFP+ Card not listed in ifconfig at boot (FreeNAS)

We are attempting to get a new FreeNAS storage array setup and working. The server has an add in NIC twoo bring us up to dual 10gbps connections. When we boot the box, the add in NIC is not listed when we run

running

bxnt0

immediately makes the card available and we are able to further configure the card. We have attempted to configure the NIC through the web interface once it's detected and have also attempted to add the relevant

="DHCP"

and

=10.0.0.1 netmask 255.255.255.0

entries to

/etc/rc.local

but these configurations do not seem active after a reboot. My experience here is in the Linux universe so I'm coming up blank on what to try next in the BSD world. any suggestions?