[realtek] problem with dual RTL8139 boards
Tue Jan 1 22:26:01 2002
On Tue, 1 Jan 2002, John A Ogren wrote:
> Date: Tue, 01 Jan 2002 20:05:30 -0700
> I'm trying to get two RTL8139 boards running in my Linux box, so I can
> eventually connect a cable modem to my home network. Both my cards work
> normally if they are the only network card installed (i.e., they can
> ping hosts on my home network). However, if both the cards are installed
> at the same time, only one of them works. I can swap them on the PCI
> bus, and then the other card works. The problem seems to be associated
> with the PCI bus - when two cards are installed, only the one in a
> particular PCI slot will work with my network. If only one network card
> is installed, it works in any PCI slot.
What motherboard type?
Have you read the manual about bus-master limits? Some A-bit
motherboards share the bus-master pins between two adjacent slots.
It's more likely that you are misinterpreting the symptons, and actually
have a routing problem.
> ifcfg-eth0 \____ both files are present and identical, except for
> ifcfg-eth1 / IPADDR= and DEVICE= lines.
> One has IPADDR=192.168.1.1
> Other has IPADDR=192.168.0.1
> My local network is at 192.168.1.x
> The "good" PCI slot is always assigned to eth1 at bootup. If I swap the
> IPADDR values in the two ifcfg-eth? files (and restart the network), I
> cannot ping machines on the local network.
Donald Becker firstname.lastname@example.org
Scyld Computing Corporation http://www.scyld.com
410 Severn Ave. Suite 210 Second Generation Beowulf Clusters
Annapolis MD 21403 410-990-9993