In BGP config, route-map used but not defined.

Hi, In F5 advance routing module, I am doing BGP peering with a neighbor and filtering out the outbound route advertisement using below command: neighbor 10.0.0.1 prefix-list NO_ROUTES in

I have not created the prefix-list NO_ROUTES . Hence my F5 is advertising all routes to the neighbor 10.0.0.1.

If I use route-map and donot define the route-map, what will the default behaviour be? Will my F5 advertise all routes, or will it filter-out all routes?