To see live traffic on an interface especially external interface (updates every second)

watch -n 1 /sbin/ifconfig ethC

To check the latest NIC drivers in the database for the Smoothwall’s linux kernel

#lspci -nnn (to check the ethernet controllers and the hardware detected by smoothwall)(To check the company ID and the unique hardware ID i.e. PCI-ID) (to check the ethernet controllers and the hardware detected by smoothwall)

or # lspci -nn | grep Eth

#cat /lib/modules/3.13.0-1-smp/modules.pcimap | grep 1533 | grep 8086

(you can put the kernel you are looking the drivers in instead of 3.13.0-1-smp and the current kernel can be checked using #uname -r)