Chapter 5 Configuring the Router

Performing the Initial Configuration on the Router

 

Command or Action

Purpose

Step 4

ip route dest-prefix mask next-hop-ip-address

Establishes a static route.

 

[admin-distance] [permanent]

 

 

Example:

 

 

 

Router(config)# ip route 192.168.24.0

 

 

255.255.255.0

172.28.99.2

 

Step 5

 

 

ip default-network network-number

Selects a network as a candidate route for computing the

 

or

 

gateway of last resort.

 

ip route dest-prefix mask next-hop-ip-address

Creates a static route to network 0.0.0.0 0.0.0.0 for

 

 

 

 

Example:

 

computing the gateway of last resort.

 

 

 

Router(config)# ip default-network 192.168.24.0

 

Example:

 

 

Router(config)# ip route 0.0.0.0 0.0.0.0

 

 

172.28.99.1

 

Step 6

 

 

end

Returns to privileged EXEC mode.

 

Example:

 

 

Router(config)# end

 

Step 7

 

 

show ip route

Displays the current routing table information.

 

 

Verify that the gateway of last resort is set.

 

Example:

 

 

Router# show ip route

 

Examples

Specifying a Default Route: Example

!

ip routing

!

ip route 192.168.24.0 255.255.255.0 172.28.99.2

!

ip default-network 192.168.24.0

!

Sample Output for the show ip route Command

Router# show ip route

Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP

D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area

E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP

i- IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, * - candidate default Gateway of last resort is 172.28.99.2 to network 192.168.24.0

172.24.0.0 255.255.255.0 is subnetted, 1 subnets

C172.24.192.0 is directly connected, FastEthernet0

S 172.24.0.0 255.255.0.0 [1/0] via 172.28.99.0

S*

192.168.24.0 [1/0] via 172.28.99.2

 

172.16.0.0 255.255.255.0 is subnetted, 1 subnets

C172.16.99.0 is directly connected, FastEthernet1

Router#

 

Cisco 1900 Series Hardware Installation

5-16

OL-19084-02

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Cisco Systems 1900 Series manual Specifying a Default Route Example, Sample Output for the show ip route Command