MNS-BB Software User Guide
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The above flow diagram shows the tight integration of remote TACACS+ authentication with the
local user-based authentication.
There are two stages a particular user goes through in TACACS+. The first stage is authentication
where the user is verified against the network user database. The second stage is authorization, where
it is determined whether the user has operator or manager
access.
Logout State
User inputs name and
asswor
Is User in Local
User List?
YES
Is User Manager?
YES
Login State as
M
n
Login State as
r
NO
NO
TACACS+ Enabled?
NO
Logout State
START
YES
Connect to TACACS
Server and Authenticate
Authenticate Failure or
Connection Failure
Logout State
Authenticated
TACACS+ Authorization
Authorized as Operator or
Authorization Failure
Login State as
r
Authorized as Manager
Login State as
M
n
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