.. Define the common option -D for Directed routes **-D, --Direct <dr_path>** The address specified is a directed route :: Examples: -D "0" # self port -D "0,1,2,1,4" # out via port 1, then 2, ... (Note the second number in the path specified must match the port being used. This can be specified using the port selection flag '-P' or the port found through the automatic selection process.)