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4-3-7-1.Port Security
A port set in security mode will be “locked” and be without address learning.
Only the incoming packets with the source MAC address already existing in
the address table can be forwarded. With port security, users can disable a
port from learning new MAC addresses. The user may then return to the static
MAC addresses menu to define a list of MAC addresses that can access the
secured port.
1. Press <Edit> to enable or disable the port security.
2. Press the Space key to choose enable or disable.
3. Press ESC to return to the action menu line, and then select <Save> to
save all configured values.