Solved: % error in authentication

Louis Adams · ‎05-05-2016

HI,

I am trying to enable ssh on my cisco 3850 switch. When i changed to aaa new-model and i try to ssh to the switch i get the username prompt and then i put in the username. the first thing it says is "Using keyboard-interactive authentication." then it prompts me for password. I put the password in and it takes me to usermode. Then when I type en to get to enable mode it gives me the following error. "% error in authentication. Currently the only way i can access privileged mode is by the console. We do not have a tac+ server. We are just use local. I tried to do some research and used the command aaa authentication enable default local in global config and that did not change anything. Any Ideas what i am missing.

Reza Sharifi · ‎05-05-2016

Hi,

Try these commands and test again:

username <username> privilege 15 password 7 <password>

aaa new-model

aaa authentication login default local

aaa authentication enable default enable

HTH

View solution in original post

Reza Sharifi · ‎05-05-2016

Hi,

Try these commands and test again:

username <username> privilege 15 password 7 <password>

aaa new-model

aaa authentication login default local

aaa authentication enable default enable

HTH

Louis Adams · ‎05-05-2016

Thanks that was it. Works as expected now.

Louis Adams · ‎05-05-2016

Actually I also had to issue the following command to stop the keyboard interactive message.

no ip ssh server authenticate user keyboard

and then I had forgotten to create the enable secret command. once I did that all was good.

Reza Sharifi · ‎05-05-2016

Glad to know it is all working now.

Thanks for the rating!

Hashmat · ‎10-12-2023

Hello Reza Sharifi, I am facing with the same issue as below. When I access the SW by consol and after login with local admin and password i get this below mode and I am not able to change the configuration. the Switch is in stack configuration. Looking for your advice.

SW-9500-01>en
Error in authentication.

WS-9500-01>?Error: Licensing infrastructure is NOT initialized.