I have three Sun 501-6522-07 cards in a Dell Poweredge 2850 and they are recognized and configurable inside FreeBSD 10.3 however no traffic is sent out or received by the NICs. I have checked /boot/kernel and if_cas.ko wasn't there. Am I correct to assume that file needs to be loaded into the kernel as the next step in troubleshooting or is there some other solution that I don't know about?