6-15
Cisco 1900 Series Hardware Installation
OL-19084-02
Chapter 6 Configuring the Router
Performing the Initial Configuration on the Router
Examples
Configuring the GigabitEthernet Interface: Example
!
interface GigabitEthernet0/0
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
GigabitEthernet0/0 172.16.3.3 YES NVRAM up up
GigabitEthernet0/1 unassigned YES NVRAM administratively down down
Router#
Step 5
description
string
Example:
Router(config-if)# description GE int to 2nd
floor south wing
(Optional) Adds a description to an interface configuration.
•
The description helps you remember what is attached to
this interface. The description can be useful for
troubleshooting.
Step 6
ip address
ip-address mask
Example:
Router(config-if)# ip address 172.16.74.3
255.255.255.0
Sets a primary IP address for an interface.
Step 7
no shutdown
Example:
Router(config-if)# no shutdown
Enables an interface.
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
