D-Link Web Smart DES-3252P Install Manual page 154

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Single-host Lock — Indicates that the port control is Auto and a single client has been authenticated via
the port.
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Learning Mode – Defines the locked port type. The Learning Mode field is enabled only if Locked is selected
in the Set Port field. The possible field values are:
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Classic Lock – Locks the port, and only forwards packets that have been learned statically or
dynamically, prior to locking the port. The lock is effective immediately.
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Limited Dynamic Lock – Indicates the port is unlocked. Locks the port after a user-defined number of
MAC addresses have been dynamically learned on the port. After the port is locked, packets are
forwarded only from MAC addressees that have been learned prior to locking the port.
•
Max Entries – Specifies the number of MAC address that can be learned on the port. The Max Entries field is
enabled only if Locked is selected in the Set Port field. In addition, the Limited Dynamic Lock mode is
selected. The default is 1.
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Action — Indicates the action to be applied to packets arriving on a locked port. The possible field values
are:
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Forward — Forwards packets from an unknown source without learning the MAC address.
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Discard — Discards packets from any unlearned source. This is the default value.
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Shutdown — Discards packets from any unlearned source and shuts down the port. The port remains
shut down until reactivated, or until the device is reset.
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Trap — Enables traps when a packet is received on a locked port. The possible field values are:
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Checked — Enables traps.
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Unchecked — Disables traps.
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Trap Frequency (Sec) — The amount of time (in seconds) between traps. The default value is 10 seconds.
2. Click . The Port Security Settings Page opens:
Figure 95: Port Security Settings Page
3. Modify the Interface, Lock Interface, Action on Violation, Enable Trap, and Trap Frequency fields.
4. Click . The port security settings are defined, and the device is updated.
Page 154
Configuring Device Security
Configuring Network Security