SMC Networks EZ Switch SMCGS24C-Smart, User Manual

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W
EB
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ONFIGURATION
5-37
Port Security
Port security is a feature that allows you to configure a port with one or
more MAC addresses that are authorized to access the network through
that port. The Port Security table has one row for each port and five
columns.
When port security is enabled on a port, the switch stops learning new
MAC addresses on the specified port when it has reached a configured
maximum number. Only incoming traffic with source addresses already
stored in the dynamic or static address table will be accepted as authorized
to access the network through that port. If a device with an unauthorized
MAC address attempts to use the switch port, the intrusion will be
detected and the switch can automatically take action as specified by
Intrusion Action.
Field Attributes
• Port - The front-panel port-number of the port. This cannot be changed.
• Allowed number of Learned MAC addresses - Set the maximum of
MAC addresses that can be learned by this port. The Mode settings for
the port are set by a single drop-down list.
•
No Limit - No limitation on the number of dynamcally learned MAC
address. This means port security is disabled.
• 8/7/6/5/4/3/2/1 - The maximum number of dynamically learned
MAC address.
• 0 - No dynamically learned MAC address is allowed on this port. This
does not affect any static MAC addresses that are configured for the
port.
Note: Port security only handles dynamically learned MAC addresses
and has no limitations on static MAC addresses. On this switch,
24 static MAC address can be configured by System > Static
MAC.