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Cisco 1720 router not saving configuration

djelizondo
Level 1
Level 1

                  I currently am trying to program the config for a 1720 router however i cannot get the config to stick. I boot up to the command prompt put in all the configurations use the "write mem" command and then hard reset the router but when it boots back up I get the initial system configuation dialog.

I have tried booting to the rommon prompt and typing "confreg" and following the prompts keeping all options set to no except for  this setting

"enable "ignore system config info"? y/n [n]: Y"

Is set to yes. but when i get to the end of the config it just loops and starts over with

"you wish to change the configuration? y/n [n]: Y"

If i choose yes it loops if I choose no it goes back to the rommon prompt. Am i doing something wrong?

1 Accepted Solution

Accepted Solutions

Hi,

reconfigure the router and use as first command:

-enable

-conf t

- config-register 0x2102

- do wr

-do reload

You should have solved your problem and then you can finish configuration and write to startup-config.

Regards.

Alain

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View solution in original post

5 Replies 5

djelizondo
Level 1
Level 1

here is the current system  config

    Configuration Summary

enabled are:

ignore system config info

console baud: 9600

boot: image specified by the boot system commands

      or default to: cisco2-C1700

    Configuration Summary

enabled are:

ignore system config info

console baud: 9600

boot: image specified by the boot system commands

      or default to: cisco2-C1700

Check your config register using the command "sh version".  The correct setting should be 0x2102.

I used the "sh version" command at the bottom I get this

Configuration register is 0x142

Hi,

reconfigure the router and use as first command:

-enable

-conf t

- config-register 0x2102

- do wr

-do reload

You should have solved your problem and then you can finish configuration and write to startup-config.

Regards.

Alain

Don't forget to rate helpful posts.

Don't forget to rate helpful posts.

Input from your commands.

Router>en
Router#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
Router(config)#config-register 0x2102
Router(config)#do wr
                  ^
% Invalid input detected at '^' marker.

Router(config)#do reload
                  ^
% Invalid input detected at '^' marker.

Router(config)#

After that I input my base settings for the router reset the router and it seems that my settings have stuck. Thank you so much for your help!!!

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