If a network is directly connected, the router will always use the interface connected to the network. If
you configure a static route, the router will then believe that route over any other learned routes. You can
change the administrative distance of static routes, but, by default, they have an AD of 1. In our static
route configuration, the AD of each route is set at 150 or 151. This lets us configure routing protocols
without having to remove the static routes. They’ll be used as backup routes in case the routing protocol
experiences a failure of some type.
For example, if you have a static route, a RIP-advertised route, and an IGRP-advertised route listing the
same network, then, by default, the router will always use the static route unless you change the AD of the
static route—which we did.
If a network is directly connected, the router will always use the interface connected to the network. Ifyou configure a static route, the router will then believe that route over any other learned routes. You canchange the administrative distance of static routes, but, by default, they have an AD of 1. In our staticroute configuration, the AD of each route is set at 150 or 151. This lets us configure routing protocolswithout having to remove the static routes. They’ll be used as backup routes in case the routing protocolexperiences a failure of some type.For example, if you have a static route, a RIP-advertised route, and an IGRP-advertised route listing thesame network, then, by default, the router will always use the static route unless you change the AD of thestatic route—which we did.
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