% old below:
ssh -L 5001:127.0.0.1:5001 pawelw@polluks.cs.put.poznan.pl

% remote-to-local
% run this new below for local-to-remote comm:
ssh -L 5001:polluks.cs.put.poznan.pl:5005 -p 22 pawelw@polluks.cs.put.poznan.pl
np -p 5005          on remote
np -p 5000 prog.pi  on local + refer to remote channel using ''127.0.0.1'':5001

ssh -L 5001:polluks.cs.put.poznan.pl:5001 -R 5000:<local_host_address>:5000 -p 22 pawelw@polluks.cs.put.poznan.pl

% see also:
http://manas.tungare.name/blog/ssh-port-forwarding-on-mac-os-x/