How can I upgrade images IOS system of routers, switches and firewalls

Hello

I am very surprised and fewer still understand how the program license or the Cisco's IOS upgrades are done. I have several routers, switches & ASA who I wan upgrading of IOS, but I can't do it. How ever I can download these images on the internet, but I want to know how can I do this Cisco as I don't trust these IOS is available on the internet.

According to my study I found that I need to have the number of Cisco Service contract for the devices so that I can download updated the IOS Images for them.

Someone kindly explain what are the best methods for requirements above.

Concerning

@Mohammed

You are right about a contract of service. Cisco calls this Smartnet support. It includes both supported hardware (i.e. returns for defective equipment), software support (including the right to download and upgrade your software) and technical assistance (through the Cisco TAC). SMARTnet is charged separately for each device covered. Once you have it, your cisco.com username must be associated with your service contract number. This will allow then allows you to download the software of cisco.com. (There are a few cases where you don't have to have a support contract - especially when there is a safety notice (PSIRT) indicating that the Cisco software was flawed it was released at the beginning.)

Each product (or product family) has a product on cisco.com support page. This page includes release notes, Setup guide, user guides and links to downloads of software for this product. Start by reading the release notes and determine which (if any) update is appropriate for your product. Then, you can download and upgrade the software if necessary.

Tags: Cisco Network

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