A PCI Ethernet card with an ASIX AX88140 chipset is supposed to be supported by the tulip driver, according to the source of that driver. ARP fails to operate on the card, however, unless the card is placed in promiscuous mode. It would appear the card winds up not accepting packets to its own Ethernet MAC address. This is probably a minor driver bug. Kernel version is 2.2.5-22, tulip driver included in this is 0.89. Workaround: Place "ifconfig eth0 promisc" in the rc.local file. This hurts performance, but permits ARP and IP to operate normally.