> Where are they? This is rhetorical, they are absent.
> 
> What is the command to make the /dev entry for a 3C503, or any of the
> others?

networking devices have no /dev entries.  they have a "different"
interface than other devices.

to see what networking devices exist in your system, try netstat -i

if you're not familiar with BSD-UN*X network administration, i'd
suggest you consider buying a book about it.  i think O'Reilly has
one, and i'd assume it's of the same quality as the rest of their
books (i.e. good).


chris