3Com 5112M-TPLS installation and operation guide Downloading the Autolearning Database

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Downloading the Autolearning Database

You must download the contents of the Autolearning database to the Security Module ports in order for the MAC Addresses to be associated with the ports. When Autolearning Capture is complete, download the Autolearning database to initiate port security. Depending on the amount of network traffic transmitted to the Security Module ports, you may elect to defer the Autolearn download for a day, several days, or a week. Waiting to download the captured MAC addresses allows all of a port's associated MAC addresses to be entered into the Autolearning database.

The Autolearning database for an EMM can contain a maximum of 360 MAC addresses. The Autolearning database for a TRMM can contain a maximum of 400 MAC addresses.

Since a maximum of four MAC addresses can be associated with one port, only four MAC addresses are downloaded. The four MAC addresses with the lowest alpha-numerical values are downloaded from the Autolearning database to a Security Module ports.

Issue the following command to download the Autolearning database to port 1 on the Security Module in slot 3.

ONline> set security autolearn 3.1 download [ENTER]

If MAC addresses for the specified port currently exists in the port MAC address table, the following message is displayed when the Autolearn Download command is issued:

Note: overwriting existing addresses in the Security database.

The following message is displayed upon completion of the Autolearn Download command (where y indicates the total number of addresses copied to the port's MAC address table):

Autolearn download done; downloaded y addresses total.

If a port has more than four MAC addresses in the Autolearning database at the time of the download, the following message displays upon completion of the Autolearn Download command:

4 - 12 ONline 10BASE-T Security Module Installation and Operation Guide

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Contents Page VDE Class B Compliance Restricted Rights Page Contents Installing and Operating the Module Troubleshooting Appendix B Technical Support Figures Page Tables Page How to Use This Guide AudienceStructure of This Guide Convention Indicates Example Document ConventionsUsr/snm/agents Related Documents 3Com Documents Reference DocumentsPage Introduction ONline 10BASE-T Security ModuleTheory of Operation ApplicationONline Management ONline 10BASE-T Security Module ApplicationPage Designing and Expanding the Network Understanding the General Rules Basic Network RulesSeven Basic Network Rules Rule Definition Recommendations/NotesCertain LAN devices Seven Basic Network Rules LAN Product Equivalent Distances LAN EquivalenceLAN Product Equivalent Fiber Fiber Backbone, Twisted Pair To-The-Desk Fiber Backbone, Twisted Pair To-The-Desk Example Sample Configuration Distance Calculation Maximum Link Distance on Twisted Pair Twisted Pair Backbone, Twisted Pair To-The-DeskCable Gauge Supports Link Distances Up To Patch Panels Unshielded Twisted Pair NetworkRedundant Twisted Pair Configuration Redundant LinksDesigning and Expanding the Network 2 Page Installing and Operating the Module Procedures for Completing Installation Precautionary ProceduresQuick Installation Chart Step Procedure ReferenceInstalling the Module Unpacking Procedures Setting the Dip Switch Security Module Dip Switch SW1 LocationDIP Switch SW1 Network Selection Settings Switch Network Selection Switch SettingsSwitch Function Factory Setting DIP Switch SW1 Security and Link Integrity SettingsOff On Installing the Module Installing the Cable Tie-Wrap KitAttaching the Tie-Wrap Bracket to the Module Attaching Cables With 90 Connectors Installing the Module Installing an ONline 10BASE-T Security ModuleONline 10BASE-T Security Module Cable Connection Configuring the Module Network Assignment Port EnablePort Redundancy Link Integrity Module SecurityReverting Module Configurations Saving Module ConfigurationsAutopartition Threshold Showing Module Configurations Show Module Show Module Verbose Show Port Show Port VerboseMonitoring the Front Panel Security Module Faceplate Interpretation of the Security Module LEDs Color State Indicates NameLED and Network Verification LED State Network ConfigurationNetwork Check Codes Page Configuring Security Features Quick Reference for Configuring the Security Module Quick Reference for Configuring SecurityProcedure Command SET Security Autolearn Configuring Security Features Eavesdropping SecurityIntrusion Detection Example of Eavesdropping SecurityDefining Port Security Type Example of Intrusion DetectionDefining Port Action on Intrusion Configuring Autolearning Mask Enabling PortsConfiguring Autolearning Autolearn capture done learned 0 addresses total Defining a MAC Address Manually Downloading the Autolearning Database Configuring Security Mode Saving Security Configurations Showing Security ConfigurationsReverting Security Configurations Showing Port Configurations Eavesdrop None ETHERNET1 Showing Security Autolearn Showing Security Intruder List Clearing Security Configurations Clearing the MAC Address TableClearing the Autolearning Database Clearing the Security Intruder ListUsing 3Com MIB Security Variables EMM Security Snmp VariablesUsing the Security Module Snmp Variables Configuring Security Features 4 Page Troubleshooting TroubleshootingTroubleshooting Using the Status LEDs Troubleshooting Using the Port Status LEDsTroubleshooting Using the Port Status LEDs Troubleshooting Using the Activity LEDs Troubleshooting Using the Activity LEDsLED State Possible Problem Troubleshooting Solutions Technical Assistance Page Specifications Electrical SpecificationsMechanical Specifications Environmental SpecificationsGeneral Specifications Pin Connector and Cable Figure A-1 -Pin Cable Male and Female Connectors Port # Function Table A-1 -Pin Cable Pinouts and Port AssignmentsHub Trans Ceiver PolarityHub Twisted Pair Connectors and CablesHub Trans Port #Twisted Pair Connectors Figure A-2. RJ-45 Connector PinoutsTwisted Pair Cables Technical Support On-line Technical SupportEmail Technical Support Support from Your Network SupplierWorld Wide Web Site Support from 3Com Accessing the 3Com MIB Returning Products for Repair3Com Technical Publications Page Index Activity LEDs, 3-18,3-20 Quick Reference Chart Security Type Default Setting Index