I'm trying to install NetBSD-current on a Dell Precision 410.  This 
machine had been running BSD/OS, so I know that the network hardware 
works.  When I boot the machine (using the 1.5X install floppies), the 
appropriate green lights are on for the Ethernet cable.  ifconfig shows 
that all is normal; it even says that the interface is autoselected
to 100M bps, full duplex, status active.

However, if I try to set an address, the light goes off and ifconfig 
tells me that no carrier is detected.

If I plug the same Ethernet cable into my laptop (with an fxp0 
interface), it works just fine, at 100M bpx, full duplex.

The machine does have plug-and-pray; there does not appear to be any 
way to disable that in the BIOS.  The choices for the Ethernet card are 
on, off, and on (no pxe).

Any suggestions?

		--Steve Bellovin, http://www.research.att.com/~smb
				  http://www.wilyhacker.com