How to Reset a Cisco 2600 Router


When they are sold new, Cisco routers are designed and loaded with pre-determined specifications called factory default settings. Though the routers are already configured in this manner, they are also adaptable to user needs. You can work within certain parameters to obtain a configuration that best suits your needs. Similarly, just as the routers are configurable away from their original settings, they are also designed to be returned to the original settings if need be. For the 2600 router, Cisco has set up two ways to reset routers. Only users familiar with routers should attempt this project.

Config-register 0x2102 Method

  • Issue a "show version" command and check the configuration register. Enter "config-register 0x2102" into the "global configuration mode," if it is not already entered in.

  • Enact the "write erase" to delete the current start-up configuration.

  • Use the "reload" command and choose "no" when asked if you wish to save.

    Wait for the router to reloads. When you see a message that says "--- System Configuration Dialog --- Would you like to enter the initial configuration dialog? [yes/no]:," you have successfully reset your 2600 router.

Config-register 0x2142 Method

  • Issue a "show version" command and enter "config-register 0x2142" into the "global configuration mode."

  • Use the "reload" command within the enable mode to reload the system.

  • Click "no" when asked if you want to save the modified system configuration.

  • Respond to the "Would you like to enter initial configuration dialog?" prompt with "no."

  • Enter "config-register 0x2102" in global configuration mode.

  • Choose "write memory" within "enable mode" to overwrite the previous start-up configuration.

  • Choose the "reload" command. When the "--- System Configuration Dialog --- Would you like to enter the initial configuration dialog? [yes/no]:" screen appears, the router has been returned to its factory settings.


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