Multiple Ethernet problem

[Richard Lohman <rjlohman@xxxxxxxxx>]

Hi all:
    I'm having trouble getting two NICs to play nicely together in my
linux box. The goal is to eventually get a firewall running. Here's
basically what I have:

Intel 486DX33 w/16Mb
Slackware 3.5 (kernel 2.0.34)
(2) NE2000 compatible ISA adapters:
    eth0  IRQ=10, IO=0x300
    eth1  IRQ=11, IO=0x280

Here's what I've done so far:
* Read the Ethernet HOWTO FAQ & help sections
* Read the Multiple Ethernet Mini HOWTO
* Read the Firewall HOWTO (up to where it assumes both interfaces are
working)
* Tried each of the following lines in my lilo.conf file:
    append="ether=0,0,eth1"
    append="ether=11,0x280,eth1"
    append="ether=10,0x300,eth0 ether=11,0x280,eth1"
    append="ether=0,0,eth0 ether=0,0,eth1"
* Recompiled my kernel turning on the options listed in the Firewall
HOWTO, section 5.1.
* Reinstalled linux & the original bare ide kernel
* Swapped the NE2000s out with Intel EtherExpress Pro10s (same results)
* Threw the question out in comp.os.linux.networking. I got a reply,
but due either to my inexperience, or his translation into english, I
wasn't really sure what he was trying to say. 

The symptoms:
eth0 is working fine. The ne module (loaded in /etc/rc.d/rc.modules)
reports the proper IRQ, IO, and MAC address. The IP address defined in
/etc/rc.d/rc.inet1 is bound to the adapter, and I can ping other local
machines.

During bootup, there is a message indicating that eth0 is up. Directly
after eth0 is recognized, the message "loading device 'eth1'..."
appears, but no adapter is recognized. Typing in the following command:
    ifconfig eth1 207.175.1.1 netmask 255.255.255.0 up
returns a couple of errors indicating that eth1 can't be found.

So, if anyone has gone through this, and is familiar with another
approach, I would be most grateful. Please bear in mind that I am
rather new to linux, and hence what may be obvious to the more
experienced may fly right by me. Thanks in advance.
==
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| Richard J. Lohman        | If you always do what you've |
| Network Engineer         | always done, you'll always   |
| Data Processing Dept.    | get what you've always       |
| Porter County, IN        | got.                         |
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