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Configuring a default route
A default route is used to forward packets that do not match any specific routing entry in the routing
table. Without a default route, packets that do not match any routing entries are discarded.
A default route can be configured in either of the following ways:
• The network administrator can configure a default route with both destination and mask being
0.0.0.0. For more information, see "Configuring static routing."
• Some dynamic routing protocols can generate a default route. For example, an upstream router
running OSPF can generate a default route and advertise it to other routers. These routers
install the default route with the next hop being the upstream router. For more information, see
the respective chapters on these routing protocols in this configuration guide.
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