Sorry, I was wrong... sshd sets TCP_NODELAY correctly: not on the listening socket, but after accept(). What it does not set is IPTOS_LOWDELAY ... but maybe that is not useful anyway. Cheers, Paul Paul Szabo psz@maths.usyd.edu.au http://www.maths.usyd.edu.au/u/psz/ School of Mathematics and Statistics University of Sydney Australia