CCNA Discovery 2, Chapter 5

5.3.6: Any packets for which a router does not know the destination are forwarded to the default route. Use the following command to set a default route:

ip route 0.0.0.0 0.0.0.0 {outgoing-interface | next-hop-address}

For example (using the outgoing interface):

Router(config)# ip route 0.0.0.0 0.0.0.0 s0

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