Router Configuration Modes: What They Are and Why You Need Them

When configuring a router, it’s important to understand the different modes that exist in order to make sure you’re executing the right commands. Cisco routers offer several command line interface (CLI) modes that provide different levels of access to the router’s configuration. Each mode has its own set of commands and restrictions, so it’s important to know how to navigate between them and when to use each one. In this blog post, we’ll discuss what the different router configuration modes are, their purposes, and why they’re important for successful router configuration.

Introduction: what are router configuration modes?
Router configuration modes are a series of command line interfaces (CLIs) used to configure and manage Cisco routers. The five different modes available are User EXEC mode, Privileged EXEC mode, Global Configuration mode, Interface Configuration mode, and Line Configuration mode. Each mode has its own set of commands and access rights, and each provides different levels of control over the router’s settings. Understanding the differences between these modes is key to setting up and managing a secure network.

Privileged EXEC mode
The privileged EXEC mode, also referred to as the enable mode, provides access to all other router commands. This mode is password protected, allowing only authorized users to make changes to the configuration. In this mode, a user can view the configuration files, alter the system’s configuration and configure services such as routing protocols and VLANs. In addition, privileged EXEC mode allows the user to issue debugging commands and check the system performance.

Global configuration mode
It is also the only mode in which you can enter the “enable” command to move into privileged EXEC mode. To enter global configuration mode, enter the “configure terminal” command at the privileged EXEC prompt. From here, you can begin making changes to the router’s setting