> I am running 1.4.3 und I'm trying to use a 3Com 3c905B-TX. The LED on the
> card isn't on. Before you ask:  I tried several cables and they worked
> fine with other machines. :-) Here are some more informations:
> ...
> 	media: Ethernet autoselect (10baseT)
> 	status: no carrier
> 	inet 129.13.98.189 netmask 0xffff0000 broadcast 129.13.255.255

This card is problematic.  Most now work with the NetBSD driver, but a
couple of us have (had :-) cards that still do not.  It seems based on
changes that were necessary to get some others' cards working that
3com have shipped about three variants of this card. :-(

> Next I thought that the card might be out of order. To test it, I
> installed l*nux. And then the LED was on and I was connected to the net.

In my case it worked under NT.  I gave up on it and swapped it into a
machine that only ran NT and got an Intel card in return.

If you wanted you could try to work out from the Linux driver source
what it does differently.  It's likely easier to get another card
though ...

Regards,

Giles