[SLUG] eth0 + eth1 = 0

[Gregg <greggs@xxxxxxxxxxxxxxxxx>]

Dear All,
I'm attempting to install a second ethernet card the RH6.0 server at my kid's
school. eth0 happily runs a 192.168.0.x network and we want to use 192.168.13.x as a
gateway to the internet (somewhere on that network is a connection to an ISP
and we want some free bandwidth). 

eth0 starts and runs fine - it's on IRQ 5 and 0x300 base address
eth1 is on IRQ 3 and 0x220 and doesn't start fine. The only message is 
"delaying eth1 initialisation" (or something to that effect).

/var/log/messages says there is no such device as eth1.

Is there a way to get more information regarding what is going wrong? 

I've tried both getting an address via dhcp (from the 192.168.13.x dhcp server)
and also tried hard coding the address in
/etc/sysconfig/network-scripts/ifcfg-eth1

Both give the same result.

Both cards are Intel Ethernet Express ISA cards and their settings are set via
software (a utility called SOFTSET2 from Intel). I've triple checked and the
IRQ and base settings are what I think they are. 

According to /proc/interrupts, IRQ 3 is available.
According to /proc/ioports, 0x220 is also available.

Something in /proc/ioports troubles me though...

4300-430f : EtherExpress shadow
8300-830f : EtherExpress shadow
c300-c30f : EtherExpress shadow

presumably these are from eth0. 

If the EthernetExpress requires this 'shadow' (whatever that is) is it impossible to run two of these cards at one time in
the same machine? There is no obvious configuration for the shadow so I'd guess
that eth1 would be trying to use the same space for its shadow too (???).

Unfortunately I've only got EthernetExpress cards so I can't try something
else (without buying one and charging the school). If anyone has any
suggestions, I'd love to hear them.  

Recommendations towards ethernet card types I should buy as eth1 would be
welcome - my concern is that the shadow might be necessary on all cards (anyone
know?) 

I appreciate your help.

Gregg