It SHA encrypts the password and is not reversible (yet). Instead use AAA and the secret keyword in configuring the username. Those passwords are easily reversible and should not be used. It’s that easy! You can now remove the passwords from under the VTY. Switch(config-line)# login authentication default Switch(config)# username mmessier privilege 15 secret StAnLeYcUp Switch(config)# aaa authentication login default local Here’s an example of how easy it is to setup. Since we are on the topic of passwords, I beleive you should configure AAA even if you’re using local credentials. If the switch refuses to perform this command with the following error: issu loadversion 3 bootflash:cat4500e-universalk9.SPA.03.04.00.SG.151-2.SG.bin 4 slavebootflash:cat4500e-universalk9.SPA.03.04.00.SG.151-2.SG.bin Active Boot variable is invalid make sure the. Switch# system disable password recovery switch all When performing ISSU on Cisco 4500 switches running IOS XE, the first step to do is to issue the issu loadversion command.
Switch# no system ignore startupconfig switch all Finally we want to remove the variables we set while in Boot Loader. Once the switch has booted you can copy the saved config back into the running config. Switch: SWITCH_DISABLE_PASSWORD_RECOVERY=0 On the console you should be in Boot Loader. Hold the button for approximately 12 seconds, the Status LED will go amber. Immediately press and hold the Mode button.
How to recover password on a Cisco switch/Cisco catalyst 3850? We will show you the following basic steps needed to recover the password on catalyst 3850 series. “I’m trying to do password recovery on a Catalyst 3850 switch, and I can’t figure out what I have to actually do.”For network users it is a common problem that you lost or forgot the password of a network switch.
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