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TACACS+ users with role TACP-15 fail to access Expert mode on R77.30 Gaia OS
Symptoms
  • TACACS+ users with role TACP-15 fail to access Expert mode on R77.30 Gaia OS:

    1. TACACS+ user connects to command line on Gaia OS.
    2. TACACS+ user successfully logs in to Clish on Gaia OS.
    3. TACACS+ user is not able to access Expert mode - after running "expert" command, the shell does not change:
      HostName:0> expert
      Enter expert password:

      Warning! All configuration should be done through clish
      You are in expert mode now.

      HostName:0>
  • /var/log/messages file shows only the following messages after running "expert" command in Gaia Clish:

    clish[PID]: cmd by admin: Start executing : expert (cmd md5: ...)
    clish[PID]: cmd by admin: Processing : expert (cmd md5: ...)
Cause

In R77.30 Gaia OS, a change was made that requires to set the privileges for TACACS+ users.

The default privilege level is set to 96 ("set aaa tacacs-servers user-uid 96").


Solution
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