How to assign a route to a subnet in OS X Lion

Question

Computer networks

Prompt please, it is impossible to register a route for the whole subnet. For one address, the route is prescribed without problems. But for the whole subnet - it does not work.
route add 10.84.1.1 10.80.0.254 - works route add
10.84.1.1/254 10.80.0.254 - no

update: thanks for the help, BuriK666

Answer 1

route add 10.84.1.1/24 10.80.0.254 - no