User's Manual

User’s Manual of SGS-5240 Series Managed Switch
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4.7.7 Port Security
Port Security allows for limiting the number of users on a given port. A user is identified by a MAC address and VLAN ID. If Port
Security is enabled on a port, the limit specifies the maximum number of users on the port. If this number is exceeded, an action
is taken depending on violation mode.
Security > Port Security page is used to configure the maximum number of device MAC addresses that can be learned by a
switch port, stored in the address table, and authorized to access the network.
◆Port – Port number.
◆Status – Enables or disables port security on an interface. (Default: Disabled)
◆Port Status – The operational status:
 Secure/Down – Port security is disabled.
 Secure/Up – Port security is enabled.
 Shutdown – Port is shut down due to a response to a port security violation.
◆Action for authorization address – Indicates the action to be taken when a port security violation is detected:
 None: No action should be taken. (This is the default.)
 Trap: Send an SNMP trap message.
 Shutdown: Disable the port.
 Trap and Shutdown: Send an SNMP trap message and disable the port.
◆Max MAC Count – The maximum number of MAC addresses that can be learned on a port. (Range: 0 - 1024, where 0
means disabled) The maximum address count is effective when port security is enabled or disabled.
◆Current MAC Count – The number of MAC addresses currently associated with this interface.