Line configuration mode
- Line configurations are particular to those EXEC lines through which a user can access the Cisco device and are also accessed from Global Configuration. With regard to the console and auxiliary ports, the 5 vty (virtual teletype) Telnet lines, and the User EXEC access to a router or switch, you can specify parameters such as logins and passwords. You must use the keyword line from Global Configuration, then the EXEC line you want to customize. For instance, you might type line console 0 from Global Configuration to define console-specific instructions. Regardless of the line you are specifying, the prompt changes to Router (config-line)#.
- Performing the actions will allow you to access and list the console port, auxiliary port, physical terminal (if present), and virtual terminal line configuration commands:
- From global configuration mode, configure a range of five vty lines from 0 to 4.
- List the line configuration commands.
- From line configuration mode, return to privileged EXEC mode.
- From privileged EXEC mode, exit the EXEC completely.
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.