Security

NOTE

While pulse dial can be used to originate the call, DTMF tones must be used for the password. This can be accomplished by using the P and T modifiers appropriately. Refer to the Dial command in Chapter 14, AT Command Set and S-Registers, for more on modifiers.

This method of password entry requires that the answering modem be a 3800 Series modem. Of course, the 3800 Series modem must be configured for VF-side password entry and the originating user must know the correct VF-side password. The originating modem can be another 3800 Series modem or any vendor’s modem.

Some originating modems may not recognize the W modifier as a wait for second dial tone. If your call disconnects due to a VF Password Timeout or an Unknown VF Password, first verify that the answering 3800 Series modem’s VF Prompt Type is set for 2nd Dial Tone. Next, verify that the Dial Tone Detect configuration option in the originating modem is enabled. Third, insert several Pause (,) modifiers into the dial string instead of the W modifier. (For the 3800 Series modem, each Pause, which is determined by the Pause Time configuration option (S8), is equal to 2 seconds.) This allows a delay between the processing of the phone number by the answering modem and the transmission of the VF-side password by the originating modem.

Some experimentation may be necessary to determine the number of pauses necessary for your call.

DTE-Side Passwords

DTE-side password entry requires the originating user to supply a valid password via his DTE. This method of password entry occurs after the modems’ training sequence, but before normal connection. The modems must be configured for asynchronous operation to use this type of security.

When using DTE-side password entry, the modems go through their normal training and error control negotiation. Once complete, the answering modem requests a valid password from the originating user. The originating user must enter, via the DTE, a password that can consist of digits and case-insensitive letters. Note that DTE passwords can be from 1 to 6 characters in length. The answering modem verifies the password against its password database table, and if valid, completes the data connection, thus allowing DTE data to be passed. As with VF-side password entry, the answering modem must be a 3800 Series modem and the originating modem can be either a 3800 Series modem or any vendor’s modem.

The following example illustrates the format of DTE-side password:

TYPE: abc123

PRESS: Enter

Where: abc123 is a 10-alphanumeric character number. Characters used for DTE-side passwords are case insensitive.

Combination of VF-Side and

DTE-Side Passwords

The previously described methods of password entry can be combined to provide two layers of security. In this case, the modems negotiate VF-side password entry prior to training. If successful, the modems connect and then prompt the originating user for a valid password. If correctly entered, the modems connect.

3810-A2-GB30-30

September 1998

12-3

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Paradyne 3800 manual DTE-Side Passwords
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3800 specifications

The Paradyne 3800 is a versatile broadband access platform that has gained recognition for its impressive features and robust performance in delivering high-speed data communications. Designed to meet the demands of both residential and commercial environments, the Paradyne 3800 stands out with its innovative technologies and reliable characteristics.

One of the main features of the Paradyne 3800 is its capability to support multiple protocols, including Ethernet, IP, and ATM. This multi-protocol flexibility allows service providers to offer a range of services, from high-speed Internet access to voice over IP (VoIP) and video conferencing. This adaptability makes it an ideal solution for diverse customer requirements, enhancing service delivery and customer satisfaction.

The Paradyne 3800 utilizes advanced DSL technologies, most notably ADSL and ADSL2+, to provide high-speed internet services over existing copper telephone lines. With a maximum downstream rate of up to 24 Mbps, the 3800 ensures fast data transfers, making it suitable for bandwidth-intensive applications such as streaming and online gaming. Additionally, the device supports bonding capabilities, allowing multiple DSL lines to work together, effectively increasing bandwidth and enhancing overall performance.

Built with scalability in mind, the Paradyne 3800 allows for easy upgrades and expansions. Service providers can seamlessly add more capacity or features as demand grows without significant overhauls to the existing infrastructure. This scalability is complemented by an intuitive management interface, which simplifies network configuration, monitoring, and troubleshooting.

Security is another key characteristic of the Paradyne 3800. It employs various encryption methods and security protocols to safeguard user data and ensure secure communications. This focus on security is increasingly important in today’s cyber landscape, where protecting sensitive information is paramount.

In summary, the Paradyne 3800 is a sophisticated broadband access platform that combines cutting-edge technologies, multiple protocol support, and robust security features. Its scalability, high performance, and ease of management make it an attractive option for service providers looking to enhance their offerings and deliver reliable connectivity to their customers. Whether it’s for high-speed internet, voice, or video services, the Paradyne 3800 is positioned as a dependable solution in the evolving telecommunications landscape.
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