Ho to upgrade Cisco Router IOS

Ho to upgrade Cisco Router IOS Software Image

This document explains how to upgrade a Cisco IOS^® software image on Cisco Access Router platforms. The examples provided from the 2600 and 3600 Series Routers also apply to the list of router platforms mentioned. The Cisco IOS Software file names can vary, based on the Cisco IOS Software release, feature set, and platform.

These routers are addressed in this document:

• Cisco 1000 Series Routers
• Cisco 1400 Series Routers
• Cisco 1600-R Series Routers
• Cisco 1700 Series Routers
• Cisco 2600 Series Routers
• Cisco 2800 Series Routers
• Cisco 3600 Series Routers
• Cisco 3700 Series Routers
• Cisco 3800 Series Routers
• Cisco 4000 Series Routers
• Cisco 4700 Series Routers
• Cisco AS5300 Series Routers
• Cisco MC3810 Series Routers

Note: You must be a registered user and you must be logged in to the http://www.cisco.com/ website in order to use the troubleshooting tools described in this document. In order to register for the Cisco.com website, visit the Cisco Registration Page

Basic Requirements needed: 

• Computer/Laptop with an Ethernet port connected to Cisco Router (Any Model)
• Download telnet software (I used putty)
• Download updated Cisco IOS Image from http://www.cisco.com/ website depending on your existing cisco router model
• TFTP Server software (tftpd32) http://tftpd32.jounin.net/

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Instructions:

• Make sure that your PC is connected to Cisco Router 
• Download & install  telnet software (terminal)
• Download & install TFTP Server from http://tftpd32.jounin.net/
• Point TFTP directory folder where your save your Cisco IOS image
• Key in Cisco Router IP Address via telnet connection type
• login into Cisco Router terminal with your own credentials of username & password (Provided by your Network Admin)

• Type (enable) & key in your password for Cisco Global Configuration mode

• Perform backup to running-config in the router to flash, enter command "copy running-config flash:"

Now Lets processed for the IOS upgrade

• In the terminal type command "show version" (It shows the current version of your ios installed)

• Now copy the IOS image from your tftp directory, make sure you are in global configuration mode router(config)# {the # sign shows your in global configuration mode}

• In TFTpd32 make sure you point the directory folder of the IOS image

• Upload the image from your PC to Router using tftp server

Router>enable

Router#copy tftp://{TFTP server IP address} flash:

• After image Uploaded from PC perfrom next step, verify the file uploaded by issue command "show version"
• After the image is transferred from your PC to CDO Router enter the following commands:
• conf t then enter
• In terminal window type command "boot system flash:\cisco_ios_image.bin"

Exam:
router(config)# boot system flash:\ c2801-adventerprisek9-mz.124-9.T3.bin

• type command "exit"
• type command "write memory" (to save changes)
• type command "reload"
• DONE!

restart your Cisco Router and verify if the new ios image successfully update!

• In terminal window type command "show version" or "show flash"

You Successfully Upgrade your Cisco Router IOS Image :)

I hope this could help to you!

Feel free to email me if you have any questions at

marky200822@gmail.com or marky.mero@ricormills.com