> The configuration of our network is such that we have a Fast > Ethernet OSA > Express adapter and it is dedicated to my Linux userid. We > have configured > Linux to use the QDIO driver. Is there a way that I can get > DHCP to work in > this environment?
Lucky you have a FE card -- you get a choice. If you want to use the QDIO driver, no, there is currently no way to make this work. If you reconfigure the OSA card to use LCS mode, yes, it should work. > You have stated that QDIO does not support > broadcast. > Should I configure the Fast Ethernet OSA Express card to use > a different > driver? See above. I've had a lot of discussions with the OSA developement team, and they're painfully aware of the problem, but QDIO doesn't do it (yet). It (the OSA) wasn't designed to work in this kind of environment (it works great if the assumption is a small number of hosts using TCP-based services only), and they're trying to patch it up to handle the kind of problems you and I are having. The wheels grind slowly in IBM -- good for QA, pain in the rear for us in the field with problems...8-). > How about adding the fake_broadcast parameter to > /etc/chandev.conf. I don't think this would help -- unless I'm misunderstanding the code, this applies only to PTP links by turning the broadcast into a directed multicast, but I'll go look at it again and see if I'm off base. I'll also give it a try during my next test window on a machine with a real OSA. -- db
