Subject: Re: ifconfig, Mac, and Ethernet
To: None <sfkaplan@cs.amherst.edu>
From: None <mycroft@gnu.ai.mit.edu>
List: netbsd-users
Date: 11/09/1994 00:35:15 
The second argument to ioctl(2) is the ioctl number, which is coming
from the afs[] table near the top of ifconfig.c.  For inet, it's
SIOCAIFADDR.

I don't understand what this has to do with your machine turning off,
though.  It sounds to me like there's a bug in your driver.