Dell PowerConnect 3024 User Manual page 16

The following options are available:
MAC Address — to enter the MAC address of a system you want to set as static.
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Port Selection — to select the port associated with that system.
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List box—lists all static addresses.
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Add — adds any address when you select it from the list box and click the Add button.
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Remove — removes any address when you select it from the list box and click the Remove button.
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To save any changes you make in this page for the current session, click Apply. To reset these fields to their current value, click Reload.
Dynamic Addresses
The Dynamic Address lookup table allows you to view the MAC addresses that are currently in the address database. When addresses are in the database,
the packets intended for those addresses are forwarded directly to those ports. You can filter out the table by port, VLAN, and MAC address by checking those
fields.
Dynamic MAC address learning is enabled by default. This is the standard mode for a network switch. In some networks, the administrator may want to create
a secured network by disabling the dynamic address learning capabilities. When this is done, all current dynamic address entries will be locked in. These
addresses will not age out and new addresses will not be learned.
In addition, if a new address is detected on a port, the switch will disable the port with the new address, save the current settings to NVRAM, and send out a
Simple Network Management Protocol (SNMP) trap warning. This feature is used to block computers that were not on the network before the lockdown from
attempting to access the network. Once a port is automatically disabled, the administrator can reenable the port manually. The NVRAM will only be saved the
first time a given port detects a new address. The aging time should be raised before disabling the dynamic address learning to provide enough time for the
switch to learn all current MAC addresses without the possibility of aging out.
This page contains the following options by which to query the dynamic MAC address table:
Port — check the option box and select a port from the drop-down list.
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VLAN ID — check the option box and type the appropriate VLAN ID.
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MAC Address — check the option box and select the address from the list box provided.
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Query button — click this button to execute the query once you have selected the criteria for the query.
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Dynamic Address Learning — Enable or disable dynamic address learning.
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