Static routes are manually configured network routes.
A typical use for a static route is a static default route for systems that do not make use of DHCP or dynamic routing protocols:
set protocols static route 0.0.0.0/0 next-hop 10.1.1.1 distance '1'
Another common use of static routes is to blackhole (drop) traffic. In the example below, RFC1918 networks are set as blackhole routes.
This prevents these networks leaking out public interfaces, but it does not prevent them from being used as the most specific route has the highest priority.
set protocols static route 10.0.0.0/8 blackhole distance '254' set protocols static route 172.16.0.0/12 blackhole distance '254' set protocols static route 192.168.0.0/16 blackhole distance '254'
Routes with a distance of 255 are effectively disabled and not installed into the kernel.