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Avocent CCM1640, CCM840 Chapter 1: Product Overview, Features and Benefits, Overview, Extensive command set, Serial device access options, User authentication and data security

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Chapter 1: Product Overview

Features and Benefits

Overview

The CCM840 and CCM1640 serial over IP network appliances provide nonblocked access and control for serial devices such as routers, power management devices and firewalls.

You may connect up to 8 serial devices to a CCM840, and up to 16 serial devices to a CCM1640. A single 10/100 Ethernet port provides network connectivity on each CCM. Two CCM appliances may be mounted in 1U of vertical space in a standard 19 inch rack.

Serial device access options

You may choose from among several available Telnet options to access the

CCM and its attached serial devices:

•The AVWorks™ multiplatform graphic management interface that offers a built-in enhanced Telnet client and a Secure Shell (SSH) client

•Third-party Telnet clients

•Third-party SSH clients

Access to attached serial devices is also possible via a serial Command Line Interface (CLI) connection, a PPP (Point to Point Protocol) dial-in connection to a serial CLI modem or from a third-party SSH client.

User authentication and data security

The CCM user database supports up to 64 user accounts, which include usernames, passwords and/or keys, plus specifications of access rights to CCM ports and commands. User definitions may be changed at any time. You may choose to have user access authenticated locally at the CCM user database or at one or more RADIUS (Remote Access Dial-In User Service) servers. Data security may be enhanced via industry-standard SSH encryption.

Extensive command set

The CCM offers a wide range of commands that allow administrators to easily configure, control and display information about the CCM operating environment, including its ports, user accounts and active sessions. The user interface also offers descriptive error message data and built-in command help information. On-board Trivial File Transfer Protocol (TFTP) support allows administrators to upload new functionality to CCM units in the field.

Contents

Page Page Page Page Table of Contents Page 1 Product Overview Page Chapter 1: Product Overview Features and Benefits Safety Precautions Rack mount safety considerations Using AVWorks Page Installation and Configuration Page Chapter 2: Installation and Configuration Hardware Overview Installing the CCM Configuring the CCM Configuring the IP address and subnet mask To conﬁgure the IP address and subnet mask using a Telnet CLI: To conﬁgure the CCM using the serial CLI: Initial CCM login Reinitializing the CCM 3 Operations Page Chapter 3: Operations Overview Configuring Serial Port Settings Connecting to Serial Devices Connecting to devices using Telnet Connecting to devices from the serial CLI port Configuring and using dial-inconnections Connecting to devices using PPP Connecting to devices using SSH SSH Authentication Methods Page Enabling plain text Telnet and SSH connections Telnet CLI mode Ending device sessions Session time-outs Managing User Accounts To change a user’s conﬁguration information: To end another user’s CCM session: To delete a user: To display user conﬁguration information: Access rights and levels Using Authentication Modes Authentication summary Using Security Lock-out Managing the Port History Buffer Using port history mode commands Port History Mode Commands To access port history mode: To control the port history buffer display when you connect: To control the port history buffer content when you end a session: To clear and discard all data in a port history buffer: Managing the CCM Using SNMP To add or delete SNMP management entity addresses: To enable or disable SNMP traps: To add or delete SNMP trap destination addresses: To add, copy or delete port alert strings: To display SNMP conﬁguration information: To display port alert string information: 4 Using CCM Commands Page Chapter 4: Using CCM Commands Accessing the CLI Entering Commands When commands take effect Understanding Conventions Command syntax Page Syntax conventions Command Summary CCM Command Summary (Continued) Page Page Page 5 CCM Commands Page Chapter 5: CCM Commands Connect Command Disconnect Command Help Command Port Commands Port Alert Add command Port Alert Copy command Port Alert Delete command Port Break command Port History command Port Logout command Port Set command Page Quit Command Resume Command Server Commands Server CLI command Server FLASH command Server PPP command Server RADIUS command Server Reboot command Server Security command Server Set command Server SNMP command Server SNMP Community command Server SNMP Manager command Server SNMP Trap command Server SNMP Trap Destination command Server SSH command Show Commands Show Port command Page Show Port Alert command Show Server command Show Server CLI command Show Server PPP command Show Server RADIUS command Show Server Security command Show Server SNMP command Show User command SPC Command User Commands User Add command Page User Delete command User Logout command User Set command User Unlock command Page Appendices Page Appendices Appendix A: Technical Specifications Appendix B: Device Cabling Page RJ-45modular adaptors and cables Page Appendix C: Ports Used Appendix D: Technical Support