Configuring Static Routes; Static Routing Overview; Static Route Preferences - Juniper J2300 User Manual

Chapter 13

Configuring Static Routes

Static Routing Overview

Static Route Preferences

Static routes are routes that you explicitly enter into the routing table as permanent
additions. Traffic through static routes is always routed the same way.
You can use either J-Web Quick Configuration or a configuration editor to configure
static routes.
This chapter contains the following topics. For more information about static routes,
see the JUNOS Routing Protocols Configuration Guide.
Static Routing Overview on page 285
Before You Begin on page 287
Configuring Static Routes with Quick Configuration on page 288
Configuring Static Routes with a Configuration Editor on page 290
Verifying the Static Route Configuration on page 295
Routes that are permanent fixtures in the routing and forwarding tables are
often configured as static routes. These routes generally do not change, and
often include only one or very few paths to the destination.
To create a static route in the routing table, you must, at minimum, define the route
as static and associate a next-hop address with it. The static route in the routing table
is inserted into the forwarding table when the next-hop address is reachable. All
traffic destined for the static route is transmitted to the next-hop address for transit.
A static route destination address can have multiple next hops associated with it. In
this case, multiple routes are inserted into the routing table, and route selection
must occur. Because the primary criterion for route selection is the route preference,
you can control the routes that are used as the primary route for a particular
destination by setting the route preference associated with a particular next hop.
The routes with a higher preference are always used to route traffic. When you do
not set a preferred route, traffic is alternated between routes in round-robin fashion.
Static Routing Overview
285