Interface configuration mode
- You can define interface-specific instructions that only apply to the interfaces listed in the configuration directly from Global Configuration.
- The interfaces can now be enabled, IP addresses assigned, speeds specified, and other interface instructions configured.
- Again, the IOS commands available at this sub-configuration level are inapplicable at Global Configuration, Privileged EXEC, or User EXEC.
- The operation of an interface, such as an Ethernet, Token Ring, or serial port, can be changed via interface configuration commands. You must enter interface configuration mode by typing the interface type port number command in order to configure a specific interface from global configuration mode. By typing interface serial 0, you can access interface configuration mode on the serial 0 interface. You are in interface configuration mode, according to the Router(config-if)# command-line prompt. To view the commands available in interface configuration mode, consult the help system.
- Enter the exit command to leave interface configuration mode and return to global configuration mode.
- Follow these instructions to access and list the interface configuration commands:
- From global configuration mode, enter interface configuration mode for the Serial 0 interface.
- List the interface configuration commands.
- From interface configuration mode, return to global configuration mode.
Common iOS Navigation Techniques in Cisco
An IOS mode is a collection of commands used to customize a set of related features or to manage a specific area of the device. IOS modes are also referred to as IOS access modes and IOS command modes. There are five IOS modes: global configuration mode, privileged EXEC mode, user EXEC mode, setup mode, and ROM Monitor mode. The first three modes are used to configure new settings, edit existing settings, and view the current settings. The following two modes are used, respectively, to configure the device initially and troubleshoot it in an emergency.