INTERFACE COMMANDS

port security

Use this command to enable and configure port security on a port. Use the no form to disable port security or reset the intrusion action to the default.

Syntax

port security [action trap-and-shutdown]no port security [action]

action - Indicates the security action to be taken when a port security violation is detected (applies globally to all ports).

trap-and-shutdown- Issue an SNMP trap message and disable the port.

Default Setting

Status: Disabled

Action: None

Command Mode

Interface Configuration (Ethernet)

Command Usage

•If you enable port security, the switch will stop dynamically learning new addresses on the specified port. Only incoming traffic with source addresses already stored in the dynamic or static address table will be accepted.

•To use port security, first allow the switch to dynamically learn the <source MAC address, VLAN> pair for frames received on a port for an initial training period, and then enable port security to stop address learning. Be sure you enable the learning function long enough to ensure that all valid VLAN members have been registered on the selected port.

•To add new VLAN members at a later time, you can manually add secure addresses with the mac-address-table static command, or turn off port security to reenable the learning function long enough for new VLAN members to be registered. Learning may then be disabled again, if desired, for security.

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SMC Networks 10/100/1000 SMCGS8P-Smart manual Port security, 101
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10/100/1000 SMCGS8P-Smart specifications

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