Configuring for 2 Network Adapters

[Gordon Pedersen <gordo@pclink.com>]

Just installed a second NIC.  Both it and my original NIC are 3Com
3c905, with the newer one being actually 3c905B.

Both NICS get loaded automatically on first boot after install but my
link to local LAN is down. Problem seems to be, both NICs get 
stuck on IRQ 11, although they do get different I/O addresses.  
(See excerpts from /var/log/messages below.)

Anyone know an easy way to configure these two beasties at boot time.
I know I've seen module-loading instructions and will find them
eventually but wonder if anyone can share the config for a similar
setup.

They are being loaded as modules.  I'm running a stock, fresh Redhat 5.1
system w/kernel 2.0.34.

Thanks.  

Gordon

from /var/log/messages:

*****************************************
* BEFORE NEW NIC                        *
*****************************************
Dec  4 13:45:31 les kernel: 3c59x.c:v0.99 4/7/98 Donald Becker http://cesdis.gsfc.nasa.gov/linux/drivers/vortex.html
Dec  4 13:45:31 les kernel: loading device 'eth0'...
... Note: this is the old NIC
Dec  4 13:45:31 les kernel: eth0: 3Com 3c905 Boomerang 100baseTx at 0xff00, 00:60:97:23:69:a0, IRQ 11
Dec  4 13:45:31 les kernel:   8K word-wide RAM 3:5 Rx:Tx split, autoselect/MII interface.
Dec  4 13:45:31 les kernel:   MII transceiver found at address 24, status 7829.
Dec  4 13:45:31 les kernel:   Enabling bus-master transmits and whole-frame receives.

*****************************************
* AFTER  NEW NIC                        *
*****************************************
Dec  4 16:10:46 les kernel: 3c59x.c:v0.99 4/7/98 Donald Becker http://cesdis.gsfc.nasa.gov/linux/drivers/vortex.html
... Note: this is the new NIC
Dec  4 16:10:46 les kernel: loading device 'eth0'...
Dec  4 16:10:46 les kernel: eth0: 3Com 3c905B Cyclone 100baseTx at 0xfc80, 00:10:4b:10:72:07, IRQ 11
Dec  4 16:10:46 les kernel:   8K byte-wide RAM 5:3 Rx:Tx split, autoselect/10baseT interface.
Dec  4 16:10:46 les kernel:   Enabling bus-master transmits and whole-frame receives.
... Note: this is the old NIC
Dec  4 16:10:46 les kernel: loading device 'eth1'...
Dec  4 16:10:46 les kernel: eth1: 3Com 3c905 Boomerang 100baseTx at 0xff00, 00:60:97:23:69:a0, IRQ 11
Dec  4 16:10:46 les kernel:   8K word-wide RAM 3:5 Rx:Tx split, autoselect/MII interface.
Dec  4 16:10:46 les kernel:   MII transceiver found at address 24, status 7809.
Dec  4 16:10:46 les kernel:   Enabling bus-master transmits and whole-frame receives.