Starting a Cisco Router

The Cisco will not come with a configuration saved when it is started. And when the start-up is completed then an initial software configuration is entered. A router should have an exact and valid configuration to operate on a network.

Initial Startup of a Cisco Router:

It should be required to verify the physical installation the router should be powered up and the cisco IOS software is to be console. And to start up a router certain operations are required the following are stated below.

• The power runs on self-test-POST to test the working of hardware system.
• According to the operating system the Cisco IOS Software finds and loads what the router requires
• Required configurations about router-specific attributes, interface addresses, and Protocol functions are installed.

When a Cisco router powers up, it performs a POST. During this process, the router will executes diagnostics to verify the working of CPU, interface circuits and its memory.

Completion on hardware check the router then proceeds for the software instalment’s where it finds and loads the Cisco IOS image, and then finds and loads the configuration file, if one exists.

The following steps are used for startup for a cisco router:

Step 1: Before starting the router, the following steps points should be verified

• Whether all the network cables are in secure connection.
• Whether the host terminal is connected to the console port
• Your console terminal application, such as HyperTerminal, is selected.

Step 2: The power switch is then is “On” or plug the device to power.

Step 3: The boot sequence should be observed and the Cisco IOS Software output on the console.

Initial Setup of a Cisco Router:

When the router starts up the device should be configured by automatically or by self and then setup is configured in the system. After a router is setup is completes the POST and loads a Cisco IOS image, it looks for a device configuration file called as NVRAM. This part of the router is a type of memory that retains its contents even when power is turned off in the router. And then if the router is enabled with password protection it should be logged in. 

 

                           

When starting a new Cisco router, if there was no certain required configuration file then the operating system will run the setup in the installation of the system configuration. 

Setup mode is not intended for entering complex protocol features in the router. Use setup mode to bring up a minimal configuration. Other various configurations can be used in order to setup the installation of the program to configure the router.

The main purpose of the setup configuration is to help the other type of routers which does not configure according to the OS in other sources. Setup mode can be done when the required configuration is not found, or it can be entered at any time after the router is operational or booted to the default, by entering the setup privileged in the EXEC mode command.