Reset a Cisco VG224 Analog Voice Gateway or 1800 series router
The first method involves setting the configuration register to 0x2142. Most admins use this method to recover a password, but you can recover a password and wipe the configuration at the same time. Follow these steps: Log on to the router, and enter the privileged EXEC mode by entering enable and then entering the enable password command. Enter configure terminal to go to Global Configuration Mode. Enter config-register 0x2142. (This causes the router to ignore the startup configuration on the next reload.) Enter end, and reload the router by entering reload at the Router# prompt. The system will ask whether you want to save the configuration. Enter no, and confirm the reload at the next prompt. After the router has reloaded, the system will ask whether you want to enter the initial configuration dialog. Enter no. Change the configuration register setting to 0x2102 by entering enable and configure terminal to go back to Global Configuration Mode and then entering config-regi