Using Port Locking and Unlocking | Enterasys Networks IRM2 instruction

Source Address Functions

Figure 4-1. Find Source Address Window

3.Enter the Ethernet address you wish to find in a hex XX-XX-XX-XX-XX-XX format in the text box.

4.Click ; if you entered the MAC address incorrectly, a window will appear indicating that you entered an invalid address.

Enterasys’ management application will check the device’s database of source addresses; if the address is found, the port associated with the address will begin to flash. If the address is not found, a window will appear indicating that fact.

Using Port Locking and Unlocking

The Port Locking feature enables the IRM2 to prevent any new source addresses from accessing the ports connected to the repeater network. When a source address attempts to access a port, the IRM2 will compare that address to those in the Source Address Database for that port. For a station port (one detecting zero or one source addresses at the time locking was enabled), if the address is not found in the table, that port will automatically shut down, no traffic will be allowed through (although other station and trunk ports remain open), and a trap will be sent to the management station (if traps have been enabled). Note that the Device Ageing Time does not apply to station ports when Source Address Locking is enabled, although the snapshot of the Source Address Database provided by the Source Addressing window may show the detected source address ageing out if that address remains inactive, and the appropriate trap will be generated; see Using Source Addressing, page 4-4, for more information.

For a trunk port (one detecting two or more source addresses at the time locking was enabled) there is no port shut-down security feature; if port locking is enabled, all packets will continue to be allowed to pass.

NOTE

Note that when port locking is enabled, each port’s topology status (trunk or station) remains fixed and will not change while locking remains enabled, regardless of any changes in the number of source addresses detected.

4-2	Using Port Locking and Unlocking

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Enterasys Networks IRM2 manual Using Port Locking and Unlocking, Source Address Functions

Contents

IRM2 Users Guide Page Virus Disclaimer Page Restricted Rights Notice Page Contents Chapter Trap Selection Statistics Chapter Redundancy Index Contents Viii Using This Manual Introduction Related Manuals Introduction Using the Mouse Software Conventions Common IRM2 Window Fields Device Name Using Window Buttons Using On-line Help Getting Help Getting Help from the Enterasys Global Call Center Hours a day, 365 days a year Introduction Getting Help IRM2 Chassis View Viewing Chassis Information Front Panel Information Port Locking/UnlockingConnection Status Port Status Boot Prom Menu StructureFirmware Time IRM2 Chassis View Menu Structure Device Menu Repeater Menu View MenuPort Status Menu Board Menu Utilities MenuHelp Menu Load MIM Port Status DisplaysPort Menus Port Type Status Errors Physical Chassis View Port Status Color Codes Chassis Manager Window Viewing Hardware Types Device Type Setting the Device Date and Time Managing the Hub Resetting Device Counters Restarting the Device Configuring the Front Panel Repeater Port Association Repeater Port Association Setting a Board Name Enabling Boards Enabling and Disabling Ports Viewing I/F Summary Information Index TypeDescription Physical Status Raw Counts Rate Viewing Interface Detail Error AddressUnicast Non-Unicast Unknown Protocol Received only Packets Received Received onlyTransmit Queue Size Transmit only Packets Transmitted Transmit only Testing and Disabling the Current Interface Using the Applications menu Statistics Statistics Accessing the Statistics Windows Statistics Packets Statistics DefinedBytes Using the Total and Delta Radio Buttons Hard ErrorsSoft Errors Collisions Timer Statistics Accessing the Timer Statistics Windows To access the port-level Timer Statistics window Setting the Timer Statistics Interval Summary Statistics Accessing the Summary Statistics Windows Configuring Summary Statistics Accessing the Performance Graph Windows Performance Graph Total Errors Configuring the Performance Graph Source Address Functions Find Source Address Using Port Locking and Unlocking Source Address Functions Lock/Unlock Ports Window Using Source Addressing Setting the Device Ageing Time Device Ageing Time Window Alarm Limits Accessing the Alarm Limits Windows Accessing the Alarm Limits Windows Alarm Limits Collisions Errors of Type Broadcast Packets Within Configuring AlarmsSetting the Alarm Limits Time Interval Setting Alarm Limits Alarm Interval Window Alarm Limits Accessing the Trap Selection Windows Trap Selection Trap Definitions Link State Traps Segmentation Traps Source Address Traps Configuring Traps Accessing the Redundancy Window Redundancy Redundancy Establishing Redundancy Selecting and Naming a Circuit Entering the Physical Addresses of Devices to be Polled Circuit Name Window Assigning Backup Ports and Port Priority to the Circuit Setting the Polling Interval and Number of Retries Polling Interval Window Activating the Circuit Testing the Circuits Reconfiguring a Circuit Test Time of Day Window Changing Port Status Resetting a Circuit Redundancy Reset Warning Window Redundancy Index Index-2 Index-3 Index Index-4