Vyatta Network OS Documentation

Learn how to install, configure and operate the Vyatta NOS, which helps drive our virtual networking & physical platforms portfolio.

protocols static route <subnet> blackhole <distance>

Configures a black hole static route.

set protocols static route subnet blackhole [ distance distance ]
delete protocols static route subnet blackhole [ distance ]
show protocols static route subnet blackhole [ distance ]
route subnet
Multi-node. A static route. The format is a destination subnet of the form address/prefix (x.x.x.xlx).

You can define multiple static routes by creating multiple route configuration nodes.

blackhole
A destination router that is offline and cannot receive traffic or provide messages to the source of the traffic.
distance distance
The black hole distance for this route. Routes with a smaller distance are selected before those with a larger distance. The distance ranges from 1 through 255. The default distance is 1.

Configuration mode

protocols {
	static {
		route subnet {
			blackhole {
				distance distance
			}
		}
	}

}

A black hole static route is a route for which the system silently discards packets that are matched.

Use the set form of this command to configure a black hole static route.

Use the delete form of this command to remove a black hole static route.

Use the show form of this command to view a black hole static route.