I have a realtek PnP NIC that can also be set as Jumperless.
I installed it in Linux RH7. the card gets configured properly by IsaPnP and ifconfig shows it working. but I cannot get any packet to the kernel.
I can send packets though. This i observed on the other box using tcpdump. the other box gets arp requests but no inbound traffic is observed on my machine.
however, if i set up the card as jumperless, it works fine...why