On Fri, 24 Oct 1997 19:04:38 -0700 
 "Erik E. Fair" (Time Keeper) <fair@clock.org> wrote:

 > 2. add a line to /etc/netstart:
 > 	/usr/sbin/sysctl -w 'net.inet.tcp.mssdflt=1460'
 > 
 > I'd prefer to see #1, of course.
 > 
 > What are the real (not theoretical) downsides of this change? I'd like to
 > see this go in to NetBSD 1.3. More througput with lower overhead.

Or, 3:
	/usr/sbin/sysctl -w net.inet.ip.mtudisc=1

If you look at tcp_output.c:tcp_segsize(), is should be pretty clear that
this will do what you wnt :-)

Jason R. Thorpe                                       thorpej@nas.nasa.gov
NASA Ames Research Center                            Home: +1 408 866 1912
NAS: M/S 258-6                                       Work: +1 650 604 0935
Moffett Field, CA 94035                             Pager: +1 415 428 6939