Xmodem on windows 7

Note: If the console port is attached to a modem, both the console port and the modem must be operating at the same baud rate. Configure the terminal emulator program for a data rate of bps to match the xmodem speed specified above. This is done by closing the previous terminal session of bps and opening a new one at with 8-N The trick here is that the Cisco only supports a maximum baud rate of bps. Therefore, when connecting at bps, you cannot see the router prompt. This is an important point to remember.

Once connected to the router at bps, select Transfer and Send File from the HyperTerminal menu bar. Per the message above, you need to exit your bps HyperTerminal session and restart a new one at bps. Once connected, the router's ROMmon prompt appears. Verify that the download was successful by issuing a dir flash :.

Change the config register back to 0x and reset or power cycle the router so that the new Cisco IOS software image gets loaded. This example Windows HyperTerminal is configured for 8-N-1 at bps.

Connect your PC's serial port to the console port of the router. If the former is not true and you need to get into the ROMmon prompt, then you will need to change the configuration register typically 0x as given by show version to 0x0 as follows:.

Once in ROMmon, change the console baud rate from bps to bps to speed up the download time. Use the confreg command and complete the instructions presented on the screen.

Once the router boots up in ROMmon, the HyperTerminal sessions start to display illegible characters. You need to exit the current terminal session and start a new one at a data rate of bps to match the console rate as in step 2. You are now ready to issue the xmodem command. Notice how the Flash gets erased towards the end automatically compared to Cisco C Therefore, the reason why the f option is not required here.

Finally, ensure that you reset the console speed back to and change the boot sequence back to default by changing the configuration register back to 0x The standard procedure uses the default console speed of bits per second. Xmodem is a slow transfer protocol, and the transfer of a file as large as a Cisco IOS software image could take an unacceptably long time. An increase to the console speed on the router helps decrease the time it takes to do the xmodem file transfer.

After setting the hyperterminal, you receive a rommon prompt. Enter the xmodem command. Before you enter an xmodem command, there should be a software image residing in your terminal or your local hard drive. After this message appears, you have to download the file using xmodem and this procedure:. In the dialog box which appears, click on browse and look for the file name on your local hard drive. After the transfer completes, the router will reload itself.

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New Releases. Desktop Enhancements. Networking Software. Trending from CNET. Apple XModem Tool Free. Use the XModem transfer protocol in conjunction with the Apple Modem tool. Install a complete set of connectivity tools for use with the Apple Modem Tool.

ClearTerminal Free. Use the confreg command and complete the instructions presented on the screen. Once the router boots up in ROMmon, the HyperTerminal sessions start to display illegible characters.

You need to exit the current terminal session and start a new one at a data rate of bps to match the console rate as in step 2. You are now ready to issue the xmodem command. Notice how the Flash gets erased towards the end automatically compared to Cisco C Therefore, the reason why the f option is not required here. Finally, ensure that you reset the console speed back to and change the boot sequence back to default by changing the configuration register back to 0x The standard procedure uses the default console speed of bits per second.

Xmodem is a slow transfer protocol, and the transfer of a file as large as a Cisco IOS software image could take an unacceptably long time. An increase to the console speed on the router helps decrease the time it takes to do the xmodem file transfer. After setting the hyperterminal, you receive a rommon prompt.

Enter the xmodem command. Before you enter an xmodem command, there should be a software image residing in your terminal or your local hard drive. After this message appears, you have to download the file using xmodem and this procedure:.

In the dialog box which appears, click on browse and look for the file name on your local hard drive. After the transfer completes, the router will reload itself. When the reload completes, press the return key to be taken to a prompt and to reset the configuration register and the console line speed. Upon changing the console speed, you will lose connectivity.

Go to your terminal program, change the baud rate to , and reconnect to the router console. Prerequisites Requirements There are no specific requirements for this document. Overview Xmodem can be used on a group of routers see Components Used and is used in disaster recovery situations where the router has no valid Cisco IOS software or bootflash image to boot from and hence, only boots up in ROMmon. This table describes the command syntax for the xmodem command.

This option is only valid for the Cisco series. This option is only valid for the Cisco series routers. The default is Flash memory. Values are , , , , , , and bps. The default rate is specified in the configuration register.

This argument is ignored when the -r keyword is specified since only one file can be copied to DRAM. On the Cisco series routers, files are loaded to the ROMmon for execution.

Here is an example of the xmodem command issued on a Cisco Router: Here is an example of the xmodem command issued on a Cisco Router: Examples Notes: The xmodem transfer only works on the console port.