In message <Pine.LNX.4.61.0602271609290.23104@m24s24.vlinux.de>, Hubert Feyrer 
writes:
>
>Why / what for?
>
>

Hmm -- my original query was from 1999.  I don't think I was even 
running NetBSD then.

Anyway -- my need, back then, was for a router-like device that I could 
program to drop, delay, or damage packets according to user-specified 
probabilities.

		--Steven M. Bellovin, http://www.cs.columbia.edu/~smb