D-Link DES-3624i User Manual page 113

Stackable NWay Ethernet Switch User's Guide
Figure 7-10. Configure Forwarding Table And Filtering Table window
This window allows you to stop or start address learning, use an address look-up mode, and select an age-out time of the
MAC address in the selected address table. Click Apply to let your changes take effect.
The following fields above can be set:
Lock Address Table Mostly used for security purposes, when the forwarding table is locked the Switch will no
longer learn the MAC addresses for new hosts. If your network configuration doesn't change, locking the forwarding
table helps keep intruders off your network since any packet coming from an unknown source address will be dropped
by the Switch.
Address Lookup Mode Select from: Level 0, Level 1, Level 2, Level 3, Level 4, Level 5, Level 6, or Level 7. Note
that a new setting of the Address Lockup Mode will not take effect until the next Switch reboot.
MAC Address Aging Enter the desired MAC address age-out time in this field (10 to 9999 seconds).
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