
Setting Up Security for a Device
Switch Port Security
• Automatically sends notice of an attempted security violation to the switch's Intrusion Log and to the Alert Log in the switch's web browser interface.
• Sends an SNMP trap notifying of an attempted security violation to a
| network management station. For more information on configuring |
| the switch for SNMP management, see the Management and Config- |
| uration Guide you received with the switch. |
| ■ Prevent Eavesdropping: Block outbound traffic with unknown destina- |
| tion addresses from exiting through the port. This prevents an unautho- |
| rized device on the port from eavesdropping on the flooded unicast traffic |
| intended for other devices. |
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N o t e | The switch security measures block unauthorized traffic without disabling the |
| port. This implementation enables you to apply the security configuration to |
| ports on which hubs or other switches are connected, and to maintain security |
| while also maintaining network access to authorized users. |
| Configuring Port |
| |
| Plan your port security configuration and monitoring according to the |
| following: |
| ■ On which ports do you want to configure intruder security? |
| ■ Which devices (MAC addresses) are authorized on each port? |
| ■ For each port, what security actions do you want: |
| • Block intruders from transmitting to the network? |
| • Prevent intruders from eavesdropping on network traffic? |
| ■ How do you want to learn of the security violation attempts the switch |
| detects: |
| • Through network management, that is, do you want an SNMP trap |
| sent to a network management station when a port detects a security |
| violation attempt? |
| • Through the switch's web browser interface (Alert Log and Intrusion |
| Log)? |
| • Through the Event Log and the Intrusion Log in the switch console |
| interface? |
| Use the web browser interface and/or the switch console to configure port |
| security. The following table describes the parameters. |
| Table |
ParameterDescription
Port | Identifies the switch port to view or configure for port security |