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Hardware Installation Guide for the Cisco 4451-X Integrated Services Router
OL-27644-01
Chapter 4 Initial Configuration
Performing the Initial Configuration on the Router
Configuration Examples
Configuring the GigabitEthernet Interface: Example
!
interface GigabitEthernet0/0/0
description GE int to HR group
ip address 172.16.3.3 255.255.255.0
duplex auto
speed auto
no shutdown
!
Sample Output for the show ip interface brief Command
Router#show ip interface brief
Interface IP-Address OK? Method Status Protocol
GigabitEthernet0/0/0 unassigned YES NVRAM administratively down down
GigabitEthernet0/0/1 unassigned YES NVRAM administratively down down
GigabitEthernet0/0/2 unassigned YES NVRAM administratively down down
GigabitEthernet0/0/3 unassigned YES NVRAM administratively down down
GigabitEthernet0 10.0.0.1 YES manual up up
Specifying a Default Route or Gateway of Last Resort
This section describes how to specify a default route with IP routing enabled. For alternative methods of
specifying a default route, see the Configuring a Gateway of Last Resort Using IP Commands tech note.
The Cisco IOS-XE software uses the gateway (router) of last resort if it does not have a better route for
a packet and if the destination is not a connected network. This section describes how to select a network
as a default route (a candidate route for computing the gateway of last resort). The way in which routing
protocols propagate the default route information varies for each protocol.
Configuring IP Routing and IP Protocols
For comprehensive configuration information about IP routing and IP routing protocols, see the
Configuring IP Routing Protocol-Independent Feature on Cisco.com.
Step 8
end
Example:
Router(config)# end
Returns to privileged EXEC mode.
Step 9
show ip interface brief
Example:
Router# show ip interface brief
Displays a brief status of the interfaces that are configured
for IP.
• Verify that the Ethernet interfaces are up and
configured correctly.
Command or Action Purpose