CLI
Showing Interfaces
Using the command show ip interfaces brief we get
Router
Interfaces have the shutdown command applied by default, meaning they will be in administratively down/down state by default.
Switch
Interfaces do NOT have the shutdown command applied by default, meaning they will be in the up/up state if connected to another device or in the down/down state if not connected
Interfaces Status
For security reasons, all unused interfaces should be disabled.
For this reason, we can configure a range of interfaces instead of one by one.
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