Haitao Huang wrote:
> When I read http://radon.moof.ai.mit.edu/~armenb/ipnat.html, they
> mentioned for all other network interfaces (like ppp0), mail
> port-mac68k@netbsd.org about it.
> 
> So it's appreciated if you could mail me related informaiton.

ummm....what about it?  there is a lot of helpful info on many aspects of
netbsd available at either www.netbsd.org or www.macbsd.com.  try looking
around and seeing if the answer to your question is there.  in particular,
try looking at:

http://www.netbsd.org/Ports/mac68k/faq/

it has answers to most frequently asked questions :-)

i hope this helps some.

later.

colin