Modem 34336

4.7 Modem Security Operation

In 2-Wire-Dial Hayes emulation mode only, the Modem can be configured to provide security on incoming calls. Remote users attempting to connect to the Modem are required to enter a password. Incoming calls are accepted only if the user enters a valid password.

NOTE

The security features described in this manual provide a deterrent to unauthorized access. No communications system can be made perfectly secure.

PASSWORD PROTECTION

NOTE

Password protection functions only if the Modem is in Hayes emulation mode, error correction and/or buffer mode are enabled, and the data format is asynchronous.

In Hayes mode only, the Modem can be configured for two types of security operation: security callback or password pass-through operation. Both types of security operation provide security on incoming calls by requiring remote users to enter a valid password. In addition, access to Hayes compatible commands for viewing and storing phone numbers is password-protected.

If callback operation is enabled, the Modem calls back an authorized user after he or she enters a valid password. If pass-through operation is enabled, the Modem passes a connection on to the DTE interface only after it receives a valid password.

The password-protection scheme used by the Modem for incoming calls is summarized below.

A remote modem calls the local Modem.

Local Modem answers.

Remote user sends carriage return [CR].

Local Modem sends PASSWORD? query, displayed on remote terminal.

Remote user sends unique password (assigned to remote modem).

Local Modem confirms password and, according to the password, grants access (if programmed for pass-through operation) or initiates security callback.

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Black Box 34336, MD885AE-R2, MD885C-R2, MD885A-R3 user manual Modem Security Operation

MD885C-R2, MD885A-R3, MD885AE-R2, 34336 specifications

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