Using LANconfig to login to a device with activated TACACS+ authentication is only possible with the user named "root". Correspondingly, the user "root" must be configured on the TACACS+ server. To login via LANconfig, enter the password as configured for the user "root" on the TACACS+ server.
Note: Once authenticated by TACACS+, "root"
is the only user automatically assigned with full supervisor rights,
and thus able to edit the configuration without having to change privilege
level. When authorization is in use, the TACACS+ server decides whether
this is allowed or not.
Note: If authorization is activated for the device as well as authentication,
the TACACS+ server must permit the commands "readconfig" and "writeconfig"
for the user "root" in order for the user to read the configuration from
the device and to upload any changes.