I have an ancient SMC8216C ethernet card. It is still handy for network installs on old EISA bus PCs, especially since it has a BNC connector. Problem is that the card is so old that the install docs are hard to find. So here's a quick support page, mainly for my own use next time I need to install this card.
The card can be hard configured using the labelled jumpers or soft configured using the ezsetup dos program . You will need a dos boot disk to run the ezsetup program.
The 8216C has all three ethernet connectors. The card will automatically detect whether the BNC or 10BaseT connectors are connected. I have never tried the AUI connector.
The SMC Elite16 Ultra uses the smc_ultra.o driver. But the smc_ultra driver uses the 8039.o driver, so you have to install that first. 8039.o takes no arguments, but you should give the smc_ultra driver the io port number (remember to use hexadecimal notation "0x") and the IRQ:
cd /lib/modules/{version}/kernel/drivers/net
insmod 8039.o
insmod smc_ultra.o io=0x280 irq=3
Of course, the ethernet interface must be configured using the ifconfig command, something like this:
ifconfig eth0 192.168.0.9 netmask 255.255.255.0 up
The 8216C only does 10 Mbps, so you can't plug it into a 100 Mbps hub!