Installation and Getting Started Guide
Two static routes to 192.168.7.0/24:
--Standard static route through
gateway 192.168.6.157, with metric 1
--Null route, with metric 2
Router A
Router B
192.168.6.157/24
192.168.7.7/24
192.168.6.188/24
When standard static route
is good, Router A uses that
route.
192.168.7.69/24
Router A
Router B
192.168.7.69/24
X
192.168.6.157/24
192.168.7.7/24
192.168.6.188/24
If standard static route is
unavailable, Router A uses
the null route (in effect dropping
instead of forwarding the packets).
Null
Figure 6.3 Standard and null static routes to the same destination network
Figure 6.4 shows another example of two static routes. In this example, a standard static route and an interface-
based static route are configured for destination network 192.168.6.0/24. The interface-based static route has a
lower metric than the standard static route. As a result, the routing switch always prefers the interface-based route
when the route is available. However, if the interface-based route becomes unavailable, the routing switch still
forwards the traffic toward the destination using an alternate route through gateway 192.168.8.11/24.
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