How to recover Cisco catalyst L2 and L3 switch password Step1: Connect a PC with terminal emulation (for example, Hyper Terminal) to the console port of the switch using the following terminal settings: Bits per second (baud): 9600 Data bits: 8 Parity: None Stop bits: 1 Flow Control: Xon/Xoff Unplug the power cable and hold down the mode button located on the left side of the front panel, while you reconnect the power cable to the switch. Hold down for 5 seconds for Cisco 2950/2960 and 15 seconds for Cisco 3550/3750. Step 2: Now you will be presented with Switch: Issue the flash_init command on switch: flash_init Step3: Issue the load_helper command switch: load_helper Step4: Type switch: dir flash: to see config file and .bin file of switch. Step5: Type rename flash:config.text flash:config.old to rename the configuration file. It will keep existing config intact. Step6: Issue the boot command to boot the system. switch: boot Now switch will start booting as it does normally. Enter “n” at the prompt to abort the initial configuration dialog. Continue with configuration dialog? [yes/no]: n No initial configuration required as it is already configured. Step7: At the switch prompt, type en to enter enable mode. Issue following command. Switch>en Switch# Switch# rename flash:config.old flash:config.text Press Enter Switch# copy flash:config.text system:running-config Press Enter Sw1# Sw1# conf t Sw1(config)# enable secret Sw1(config)# enable password To reset VTY password Sw1(config)# line vty 0 15 Sw1(config-line)# password Sw1(config-line)# login To Reset Console Password Sw1(config-line)# line con 0 Sw1(config-line)# password Sw1# wr Note: This procedure works for for 2900XL, 3500XL, 2940, 2950, 2960, 2970, 3550, 3560, and 3750 series switches.
Posted on: Wed, 31 Jul 2013 00:34:53 +0000
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