Password recovery for network device routers and switches

When a network device password is lost or forgotten, the network administrator needs to find a way to retrieve or reset the password. For network devices, switch and router password recovery reset operation method is very different, XP system house is described below.

1. Router Password recovery

Restore the router password, first to restart the router, when the console appears when the boot process, quickly press Ctrl+break key combination, interrupt the START process of the router, into the Rommoti mode.

System Bootstrap, Version 12. L (3r) T2? Release SOFTWARE (FCL)

Copyright (c) by Cisco Systems, Inc.

Cisco 2621 (MPC860) Processor (revision 0x200) with 60416k/5120k bytes of memory Self decompressing the image

Self decompressing the image;

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Monitor:command "Boot" aborted due to user interrupt

Rommon 丨 >confreg 0x2142//Change the value of the configuration register to 0x2142, so that the router does not load the NVRAM at startup

Startiip-config configuration file Rommon 2 >boot//reboot router

router>enable//No password required after reboot

Router#copy startup-config running-contig//Copy configuration file from NVRAM to ram

Destination filename [running-configj?

2, SCO switch password recovery

Restoring the switch password also requires rebooting the device, pressing the Mode key on the panel immediately after switching power on the switch, lasting more than 6 seconds until you enter switch boot mode.