Hi,

>> /kernel: sk0: Ethernet address: 00:0a:5e:xx:xx:xx
>> /kernel: sk0: <Marvell Semiconductor, Inc. Yukon> on skc0
>> /kernel: skc0: 3Com Gigabit NIC (3C2000)
>> /kernel: skc0: <3Com 3C940 Gigabit Ethernet> port 0xdc00-0xdcff mem 
>> 0xfcf00000-0xfcf03fff irq 7 at device 4.0 on pci1
> 
> I don't know about Marvel-Yucon compatibility with M0n0wall but 3Com nic 
> should be fine. You should try to find out which nic causes the problem...

That is only /one/ card. :) Yukon is the controller on the 3Com NIC (if 
I got this right).
The other two cards in the system are some Broadcom BCM5704C Dual 
Gigabit Ethernet, they are handled by the bge driver (bge0 and bge1), 
and they don't cause any problems, it's just the sk0.


greetings,
  Harry