Cisco password recovery

1. Use HyperTerminal to connect to the router, restart the router, press Ctrl+break to enter ROM monitor mode note: Configuration register (2B) sixth bit controls whether to read the configuration file in NVRAM

2. Modify Configuration Register: 2600 series: 1): Confret 0x2142 Configuration Register value 2): Reset 3): I reboot into privileged mode

2500 Series: 1): O interrupt 2): O/R 0x2142 Configuration Register value 3): I reboot into privileged mode

4): Copy startup-config running-config copies the boot profile to run config file or execute: Copy start run

5): Config t into configuration mode

6): Enable secret password password for the password to be modified

7): Config-register 0x2102 Modify the value of the configuration register to the default value

8): Copy stratup-config running-config The boot configuration file to run profile

9): Restart the router

Cisco password recovery