Cisco 3900 series User Manual

4-17
Cisco 2900 and 3900 Series Hardware Installation
OL-18712-01
Chapter 4 Configuring the Router
Performing the Initial Configuration on the Router
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
C 172.24.192.0 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
C 172.16.99.0 is directly connected, FastEthernet1
Router#
Step 4
ip route dest-prefix mask next-hop-ip-address
[admin-distance] [permanent]
Example:
Router(config)# ip route 192.168.24.0
255.255.255.0 172.28.99.2
Establishes a static route.
Step 5
ip default-network network-number
or
ip route dest-prefix mask next-hop-ip-address
Example:
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
Selects a network as a candidate route for computing the
gateway of last resort.
Creates a static route to network 0.0.0.0 0.0.0.0 for
computing the gateway of last resort.
Step 6
end
Example:
Router(config)# end
Returns to privileged EXEC mode.
Step 7
show ip route
Example:
Router# show ip route
Displays the current routing table information.
• Verify that the gateway of last resort is set.
Command or Action Purpose

Cisco 3900 series Specifications

General

Brand	Cisco
Model	3900 series
Category	Network Router
Language	English