Line Service Commands

ruser

This field is used to authenticate a user connecting to this line. It is used in conjunction with the rpassword field. By specifying a name here, this line becomes dedicated to that user only. If left blank, the internal user database will be used to authenticate the connection and any user configured will be able to access this line. You can enter a maximum of sixteen alphanumeric characters.

This option does not work with external authentication.

authentication

The type of authentication that will be done on the link: None, PAP, or CHAP. The default is CHAP. You can use PAP or CHAP to authenticate a port or user on the IOLAN, from a remote location, or authenticate a remote client/device, from the IOLAN (not commonly used for Dial Out).

PAP is a one time challenge of a client/device requiring that it respond with a valid username and password. A timer operates during which successful authentication must take place. If the timer expires before the remote end has been authenticated successfully, the link will be terminated.

CHAP challenges a client/device at regular intervals to validate itself with a username and a response, based on a hash of the secret (password). A timer operates during which successful authentication must take place. If the timer expires before the remote end has been authenticated successfully, the link will be terminated.

When setting either PAP and CHAP, make sure the IOLAN and the remote client/device have the same setting. For example, if the IOLAN is set to PAP, but the remote end is set to CHAP, the connection will be refused.

tr-retry

The maximum number of times a terminate request packet will be re-sent before the link is terminated.

tr-tmout

The maximum time, in seconds, that LCP (Link Control Protocol) will wait before it considers a terminate request packet to have been lost.

user

This field is used by a remote peer to authenticate a PPP connection on this line. It is used in conjunction with the password field. You can enter a maximum of sixteen alphanumeric characters.

vj-comp

This determines whether Van Jacobson Compression is used on this link. The default is On. If your user is authenticated by the IOLAN, this VJ compression value will be overridden if you have set the User Framed Compression On. If your user is authenticated by RADIUS and the RADIUS parameter Framed-Compressionis set in the RADIUS file, the IOLAN will use the value in the RADIUS file in preference to the value configured here.

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IOLAN SDS/SCS/STS/MDC CLI Reference Guide, Version 3.7

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Perle Systems SDS, MDC manual Ruser, Authentication, Tr-retry, Tr-tmout, Vj-comp

SDS, MDC specifications

Perle Systems is a leading provider of connectivity solutions, renowned for its robustness and reliability in networking hardware. Among its expansive product offerings, the MDC (Multiport Device Converter) and SDS (Serial Device Server) stand out as pivotal solutions for industries requiring seamless data communication and device management.

The Perle MDC serves as a powerful multi-port device converter, providing the ability to connect multiple serial devices to a computer network without needing a separate connection for each device. This is particularly useful in environments with limited computing resources or high device density, such as railways, manufacturing plants, or remote field operations. It is designed to convert serial communication, which is commonly used in legacy devices, into Ethernet/IP or TCP/IP protocols, ensuring that older devices can integrate into modern networks.

Main features of the MDC include its robust design for industrial environments, support for a variety of serial protocols, and multiple device connections. It supports data rates of up to 115200 bps and provides easy monitoring and configuration via a web-based interface. Additionally, the MDC incorporates advanced security features including SSL and SSH encryption, ensuring data integrity and protection against unauthorized access.

On the other hand, the Perle SDS model exemplifies advanced serial device hosting capabilities, allowing users to connect Ethernet networks to serial devices. It acts as a bridge, enabling remote devices to be configured and managed over IP networks. The SDS series is known for its versatility, supporting a range of serial communication protocols, including RS-232, RS-422, and RS-485, making it suitable for various applications such as point-of-sale systems, industrial automation, and remote monitoring.

The SDS boasts several characteristics that enhance its functionality, such as automatic device discovery, real-time monitoring, and local or cloud-based management options. Its feature set also includes traffic management capabilities, allowing the optimization of device communication by controlling the flow of data, which is critical for applications requiring high reliability and low latency.

Both the MDC and SDS benefit from a strong emphasis on ease of deployment and management. They support a range of network topologies, facilitating seamless integration into existing infrastructures. Furthermore, these devices are backed by Perle Systems' reputation for customer support and a commitment to ongoing innovation, ensuring that organizations can rely on these solutions for future growth and technological advancement.