Paradyne CSU, DSU, 9126-II, 9128-II manual Controlling Telnet or FTP Access, Limiting Telnet Access

6. Security and Logins

Controlling Telnet or FTP Access

he FrameSaver unit provides several methods for limiting access via a Telnet or FTP session. Telnet or FTP access can be on a standard management link or on a service provider’s troubleshooting (TS) management link.

Limiting Telnet Access

elnet access can be limited by:

Disabling Telnet access completely.

Requiring a login for Telnet sessions that are not on the TS Access

Management Link.

TAssigning an access level for Telnet sessions. Disabling TS Access Management Link access.

To limit Telnet access via a service provider’s troubleshooting management link, see Limiting Telnet or FTP Access Over the TS Access Management Link on page 6-8.

Procedure

To limit Telnet access when the session is not on the TS Access Management

Link:

1. Select the Telnet and FTP Session options.

Main Menu → Configuration → Management and Communication →

Telnet and FTP Sessions

2. Set the following configuration options, as appropriate.

To . . .	Set the configuration option . . .
Disable Telnet access	Telnet Session to Disable.
Require a login	Login Required to Enable.
	NOTE: User ID and password combinations must
	be defined. See Creating a Login on page 6-12.
Assign an access level	Session Access Level to Level-2 or Level-3.
	NOTE: Regardless of a user’s login access level, a
	user cannot operate at a level higher than the
	access level specified for the Telnet session (e.g., if
	a user has a Level-1 login and Level-2 telnet access
	has been set, the Level-1 user can only operate as
	a Level-2 user).
	If you are going to allow users to configure the unit,
	keep the access at Level-1.

3. Save your changes.

See Configuring Telnet and/or FTP Session Support in Chapter 4, Configuration

Options, for more information about setting Telnet configuration options.

6-6 September 2002 9128-A2-GB20-80