If the router does not have sufficient memory (DRAM), the router will have boot problems when it boots through the new Cisco IOS.

The Cisco IOS Software file names can vary, based on the Cisco IOS Software release, feature set, and platform.

In order to register for the Cisco.com website, visit the Cisco.com Registration page.

All of the devices used in this document started with a cleared (default) configuration.

If your network is live, make sure that you understand the potential impact of any command.

If necessary, you can copy an image from one device to another.

For more information, refer to the Copying From One Router to Another section of the How To Copy a System Image from One Device to Another document.

Refer to TFTP Server Selection and Use for more information.

Cisco Router Software Images Are

This is the directory in which the Cisco IOS software images are stored.

Most TFTP applications provide a setup routine in order to assist in these configuration tasks.

Moreover, the Telnet connection is lost while the router reboots during the upgrade procedure.

In order to check the value of the config-register, issue the show version command.

Cisco Router How To Set The

Refer to Applying Correct Terminal Emulator Settings for Console Connections for more information on how to set the HyperTerminal properties.

These two modes are used for recovery and diagnostic procedures.

If you do not see the usual router prompt, you should use these recommendations in order to proceed with the upgrade procedure installation.

Refer to Xmodem Console Download Procedure Using ROMmon for more information.

Note: You might also need to consult the Boot Failure procedures specific to your platform.

Choose your platform from the Product Support Selector in order to locate these procedures.

This step is very important, and these factors can affect the decision for which Cisco IOS you should select.

The router should also have sufficient memory (DRAM) to run the Cisco IOS.