Cabletron Systems CyberSWITCH CSX150 User Manual

Also see for CyberSWITCH CSX150: User guide Quick start guide

Contents

USER’S GUIDE134 CyberSWITCHTIMEOUT V ALUEAllows you to terminate login sessions after the configured “time-out value” length in time. If “0”is entered, the value will be disabled. The time-out will be enabled by entering a number greaterthan 0. The range is from 0 to 1,440 minutes.NUMBER OF SESSIONSThis value disables, or limits the number of Telnet administrative sessions allowed. The defaultvalue and the maximum value is 3. If 0 is entered, the Telnet server will be disabled.TELNET SERVER TCP PORT NUMBERThe port number of the Telnet Server TCP Port. The default value is 23.EMERGENCY TELNET SERVER TCP PORT NUMBERThe port number for emergency Telnet sessions. The default for this emergency port is 9000.ADMINISTRATIVE SESSION B ACKGROUND I NFORMATIONA LTERNATIVE D ATABASE LOCATION B ACKGROUND I NFORMATIONIn addition to using the local password file to validate a remote device who wishes to login to theCyberSWITCH, you may also choose to use an off-node database server such as TACACS or ACE.Using the off-node server allows you to share the password file on the database server for multiplesystems. It may also provide more secure access to the CyberSWITCH: some of the platforms arePCs, and files on those platforms could be changed, while the database server can be physicallymore secure.As an alternative to the local password file, the user can now use security token cards along withthe TACACS or the ACE server, which provide the use of dynamic, one-time password capability.S ESSION INACTIVITY B ACKGROUND I NFORMATIONThis option may be set to terminate login sessions after a configured inactivity timeout period.Since there are only a limited number of sessions available, this avoids the problem ofadministrator lockout because a user forgets to logout from the system.N UMBER OF A DMINISTRATIVE T ELNET S ESSIONS B ACKGROUND INFORMATIONWhenever IP routing is enabled, three Telnet sessions are available for system administration.Telnet access is a very useful method to manage the CyberSWITCH remotely, but there may be acase where it is desirable to disable the Telnet access for security reasons. With this configurationoption, Telnet access to the system can be disabled, or the number of Telnet sessions can be limitedto less than 3.TELNET S ERVER TCP P ORT N UMBER B ACKGROUND INFORMATIONTCP stands for Transmission Control Protocol, which uses IP to deliver its packets. The defaultvalue for this port is 23. However, if you choose to use a different port number, you may adjust thisvalue through CFGEDIT. The Client must be aware of the port number you have configured.