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Command or Action
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Purpose
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Step 1
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enable
Example:
Router> enable
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Enables privileged EXEC mode.
•  Enter your password if prompted.
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Step 2
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show ip interface brief
Example:
Router# show ip interface brief
|
Displays a brief status of the interfaces that are configured for IP.
• Learn which type of Ethernet interface is on your router: Fast Ethernet or Gigabit Ethernet.
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Step 3
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configure terminal
Example:
Router# configure terminal
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Enters global configuration mode.
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Step 4
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interface {fastethernet | gigabitethernet}
0/port
Example:
Router(config)# interface fastethernet 0/1
Example:
Router(config)# interface gigabitethernet 0/0
|
Specifies the Ethernet interface and enters interface configuration mode.
Note For information on interface numbering, see the quick start guide that shipped with your router.
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Step 5
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description string
Example:
Router(config-if)# description FE int to 2nd
floor south wing
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(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.
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Step 6
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ip address ip-address mask
Example:
Router(config-if)# ip address 172.16.74.3
255.255.255.0
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Sets a primary IP address for an interface.
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Step 7
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no shutdown
Example:
Router(config-if)# no shutdown
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Enables an interface.
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Step 8
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end
Example:
Router(config)# end
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Returns to privileged EXEC mode.
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Step 9
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show ip interface brief
Example:
Router# show ip interface brief
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Displays a brief status of the interfaces that are configured for IP.
• Verify that the Ethernet interfaces are up and configured correctly.
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