MRV Communications LX-4000 Series Informacje Techniczne Pobierz pdf (Strona 527)

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C-2 TACACS+ Authentication Example

LX Series Configuration Guide

The TACACS+ superuser request attribute is independent from

the TACACS+ login. The TACACS+ superuser request attribute

is used to indicate which database to authenticate the superuser

password against after a user is logged in. When a user types

the enable command, and the TACACS+ superuser request is

enabled, the enable password will be authenticated against the

TACACS+ server database; otherwise it is checked against the

LX database "system".

TACACS+ Authentication Example

The following example describes the steps in the TACACS+

authentication process. In this example, the user attempts to

gain access to an LX asynchronous port.

1. The LX unit prompts the user for a username and password.

2. The username is sent to the TACACS+ authentication start

packet.

3. The server responds with an authentication reply packet,

which will either allow the user access or require a

password.

4. If a password is required, the user is prompted for one and

the LX sends it to the server in an authentication continue

packet.

5. The server responds with a packet that contains an

authentication status pass or an authentication status fail.

6. If the request is successful, the user will be allowed to log in;

otherwise the user will have two more chances to receive an

authentication status pass back from the server.

7. The LX unit then grants the user the services requested.

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