In message <20020115131932.90630.qmail@web9504.mail.yahoo.com>, Andy R writes:
>--- Greywolf <greywolf@starwolf.com> wrote:
>> Greetings,
>> 
>> I have a dell-410 at work which has what the kernel
>> thinks is an ex
>> on board.  I'm not convinced it IS an ex for real,
>> because as soon
>> as I ifconfig the interface up, the lights go out.
>> 
>> ...is this a quirk?
>
>If those are precision 410 workstations, then I do
>believe that it has the 3C905B ethernet chip right?
>That would indeed be the ex driver. Does it work under
>another OS?
>
>If in doubt, post the output of dmesg | grep ex0,
>ifconfig -a and your /etc/ifconfig.ex0 file and maybe
>there will be some recognizable problem.
>

I missed the original post.  However, I've had problems with the 
built-in 3c905b in my Dell Precision-410.  The fix is to specify the 
media type explicitly -- the fault is in the autonegotiation.

		--Steve Bellovin, http://www.research.att.com/~smb
		Full text of "Firewalls" book now at http://www.wilyhacker.com