rc.d script during system start-up and shutdown, and is intended for adding and removing static routes.
FILE FORMAT
Lines starting with a hash (‘#') are comments and ignored. Lines starting with a plus sign (‘+') are run during start-up, while lines starting with a minus sign (‘-') are run during system shutdown. All other lines are passed to
route(8). During start-up, they are passed behind a “
route add -” command and during shutdown behind a “
route delete -” command.