Cabletron Systems Cabletron CyberSWITCH CSX5500 User Manual

Also see for CyberSWITCH 5500: Quick start Manual

Contents

USER’S GUIDE32 CyberSWITCH• Data EncryptionThe CyberSWITCH encryption option provides data encryption through the Data EncryptionStandard (DES) algorithm. DES provides data security for transmissions over the WANbetween encryption devices. Options are available for encrypting communications over point-to-point, frame relay, or Internet-based WANs. For more information, refer to the EncryptionOverview and IP Security discussions.To activate the data encryption option on the CyberSWITCH, you will need to properly installand configure the encryption adapter on the system.• Dial Out CapabilityThe CyberSWITCH system will dial out to remote devices. This feature allows the system toaccept user data received on the Ethernet LAN or ISDN network and initiate a data connectionto the remote device specified in the user data. This allows devices on the local LAN to initiateconnections to networks connected to the system over the switched digital network. Thesystem monitors the connection for utilization and will remove the connection when it becomesidle.• Digital ModemThe CyberSWITCH’s digital modem capability allows analog modems to be intermixed withISDN, as required, to best fit specific networking needs. The digital modem adapter combinesboth hardware and software elements to support a number of modems on a single board (fromeight V.34 modems to thirty K56Flex modems, depending upon adapter model). The digitalmodem feature conforms to the V.90 standard.• Dynamic ManagementManage Mode provides a “real-time” management mechanism that allows many systemparameters to be changed without interrupting the current execution state of the systemsoftware. This feature consists of a series of console commands that enable a user to displaycurrent system parameters, change many parameters dynamically, and write changes to diskfiles so that they remain permanent.• High Speed Digital ConnectionsThe CyberSWITCH system supports 56Kbps and 64Kbps connections to remote locations.These dial-up digital connections provide reliable high throughput connections for efficientdata transfer for the same cost as analog connections. If any remote devices connected to thesystem support multi-link PPP, up to 32 parallel connections can be made at either 56Kbps or64Kbps.• IP FiltersIP filters allow you to control the transmission of individual IP packets based on the packettype. 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 apacket continues its normal processing, and a• Connection Filter, which determines if an IP packet requiring a WAN connection may con-tinue.