[vortex-bug] RedHat 6.2 and two 3c905B cards

[Thomas Mandl]

Hi list(s),

i'm configuring a Linux RedHat 6.2 box as a router between two ethernets
using two 3x905B cards and i encountered the following serious problem:

IP connection works fine, if i have only one 3c905B card in my linux
box. When i add a second one both interfaces can *NOT* connect to either
side (no ping trough eth0 nor eth1 is possible). First i thought i've
misconfigured my routing tables/ifconfig params, but this was not true.
Routing tables/ifconfig are setup properly. When looking at the 'dmesg
output' both 3c905B cards appear (one at IRQ 10 and one at IRQ15). I do
not believe it's a hardware/IRQ conflict, but rather some problem with
the network drivers for these cards.
I use a stock 2.2.14-5.0 kernel and eth0|1 kernel module is 3c59x
version v0.99H (11/17/98) from Donald Becker.

Has anybody experienced similar problems using two 3com ethernet cards?
Where to start? Is it worth compiling 3Com's original drivers from
http://support.3com.com/infodeli/tools/nic/linuxdownload.htm
and installing these drivers or will it work with redhat's native
drivers from Donald Backer?

Any help is highly appreciated!
Many thanks 
Thomas
-- 
Thomas Mandl            

System, Network & Security Admin  phone: +43 1 877 56 45/53
Thomas NEUROTH Ges.m.b.H.         fax: +43 1 876 49 20
Hietzinger Hauptstrasse 22        e-mail: Thomas.Mandl@neuroth.co.at
A-1130 Vienna/Austria             NIC-HDL: TM4373, TM539-RIPE