How to crack the Local Password of a cisco Router

Preparation: A computer runs the terminal Simulation Program (Super Terminal can be started in Windows 95/98), and the microcomputer serial port (COM1/COM2) is connected to the Console port through the configuration line randomly assigned by Cisco.
Recovery steps:
(1) Start the instance, press Ctrl + Break until the prompt appears.
(2) enter the command "> o/r 0x142 ".
(3) initialize the vro: "> I ".
(4) Restart. The screen displays the system configuration dialog: "system ready aiton to get started? ", Type" no ", and the system displays" Press RETURN to get started! ", Press the" Return "key, and the system displays" Router> 〉".
(5) enter the command "Router> enable" to enter the Super User State (the system no longer requires you to enter the super password); "Router # show startup-config" displays the configuration parameters, remember the password you see (you can also use the enable serect "changepassword" command to change the superuser password ).
(6) type a command to restore the original register:
"Router (config) # config-reg 0x2102 ";
"Router (config) # ctrl-z ";
"Router (config) # wr" storage disk.
(7) restart: "Router # reload ".