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Install a TFTP ServerĪ TFTP server application must be installed on a TCP/IP-ready workstation or PC. For more information, refer to the Copy From One Router to Another section of the How to Copy a System Image from One Device to Another document. If necessary, you can copy an image from one device to another. Other protocols include ftp, http, https, scp, and rcp. The most commonly used protocol is Trivial File Transfer Protocol (TFTP). Several protocols are available to copy the Cisco IOS image into the Cisco routers. Note: You must be a registered user and you must be logged in to the website in order to use the tools described in this document. These routers are addressed in this document: The Cisco IOS Software file names can vary, based on the Cisco IOS Software release, feature set, and platform. The examples provided from the 26 Series Routers also apply to the list of router platforms mentioned. This document explains how to upgrade a Cisco IOS software image on Cisco Access Router platforms. Refer to the Cisco Technical Tips Conventions for more information on document conventions. If your network is live, ensure that you understand the potential impact of any command. All of the devices used in this document started with a cleared (default) configuration. The information in this document was created from the devices in a specific lab environment. The information in this document is based on the Cisco IOS® Software Release 12 or later. There are no specific requirements for this document.

This document describes how to upgrade a Cisco IOS® software image on Cisco Access Router platforms.