ZyXEL Communications ES-2048 - Manual (Page 61)

ES-2000 Series Switch Support Notes
All contents copyright (c) 2006 ZyXEL Communications Corporation.
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You can display the Static MAC Address screen in the web configurator to
view the copied MAC addresses.
Figure 2: Displaying MAC Addresses From MAC Freeze
After you enabled MAC freeze on port 6 using the CLI command, the switch
automatically disables MAC address learning on that port. Display the Port
Security screen to verify this.
Figure 3: Disabled Automatic MAC Address Learning After MAC Freeze