Enterasys Networks CSX7000, CSX5500, CSX6000 manual USER’S Guide

USER’S GUIDE

•Data Encryption

The CyberSWITCH encryption option provides data encryption through the Data Encryption Standard (DES) algorithm. DES provides data security for transmissions over the WAN between encryption devices. Options are available for encrypting communications over point- to-point, frame relay, or Internet-based WANs. For more information, refer to the Encryption Overview and IP Security discussions.

To activate the data encryption option on the CyberSWITCH, you will need to properly install and configure the encryption adapter on the system.

•Dial Out Capability

The CyberSWITCH system will dial out to remote devices. This feature allows the system to accept user data received on the Ethernet LAN or ISDN network and initiate a data connection to the remote device specified in the user data. This allows devices on the local LAN to initiate connections to networks connected to the system over the switched digital network. The system monitors the connection for utilization and will remove the connection when it becomes idle.

•Digital Modem

The CyberSWITCH’s digital modem capability allows analog modems to be intermixed with ISDN, as required, to best fit specific networking needs. The digital modem adapter combines both hardware and software elements to support a number of modems on a single board (from eight V.34 modems to thirty K56Flex modems, depending upon adapter model). The digital modem feature conforms to the V.90 standard.

•Dynamic Management

Manage Mode provides a “real-time” management mechanism that allows many system parameters to be changed without interrupting the current execution state of the system software. This feature consists of a series of console commands that enable a user to display current system parameters, change many parameters dynamically, and write changes to disk files so that they remain permanent.

•High Speed Digital Connections

The CyberSWITCH system supports 56Kbps and 64Kbps connections to remote locations. These dial-up digital connections provide reliable high throughput connections for efficient data transfer for the same cost as analog connections. If any remote devices connected to the system support multi-link PPP, up to 32 parallel connections can be made at either 56Kbps or 64Kbps.

•IP Filters

IP filters allow you to control the transmission of individual IP packets based on the packet type. You can specify packet type by IP address (source or destination) or by IP protocol (TCP, UDP, ICMP).

Once you specify a packet type, two forms of IP filtering are available:

•Forwarding Filters, applied at discrete points of the IP processing path to determine if a packet continues its normal processing, and a

•Connection Filter, which determines if an IP packet requiring a WAN connection may con- tinue.

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