liveBook · Manning

Interface command

As explained in Acing the CCNA Exam: Volume 1 Fundamentals and Protocols

The Cisco IOS interface command enters interface configuration mode for the specified interface.

The interface command enters interface configuration mode for a specified router interface. Use it from global configuration mode; the prompt changes from R1(config)# to R1(config-if)#. section 7.3.2

Apply the command carefully:

  • Specify the correct interface name, such as gigabitethernet0/0 or the abbreviated form g0/0. section 7.3.2

Configure two router interfaces

R1(config)# interface g0/1 R1(config-if)# ip address 192.168.2.1 255.255.255.0 R1(config-if)# no shutdown Verify the result with show ip interface brief; a correctly configured interface appears up/up.

How Acing the CCNA Exam: Volume 1 Fundamentals and Protocols covers it

How deep it goes
Explains syntax, prompt changes, abbreviations, and follow-on configuration, but does not detail command parsing internals.
Examples
Uses GigabitEthernet0/0 and G0/1 examples with IPv4 addresses, no shutdown, prompts, and verification output.
What it assumes
Assumes access to global configuration mode and teaches interface configuration mode from the CLI prompt transition.
What you can do after
Operate Cisco IOS by selecting interfaces, applying interface settings, enabling them, and verifying up/up status.
How it connects
Connects global configuration mode, interface configuration mode, IP address, no shutdown, and show ip interface brief.
Cover of Acing the CCNA Exam: Volume 1 Fundamentals and Protocols
liveBookmanning.com
Read Acing the CCNA Exam: Volume 1 Fundamentals and Protocols on liveBook Get the book at manning.com

Related concepts

This explainer was generated by Manning's knowledge graph from the text of Acing the CCNA Exam: Volume 1 Fundamentals and Protocols. The section links point to the parts of the book it draws on.