Security Tab - Ports Security; Figure 5-30: Security - Ports Security - Linksys SRW2024P User Manual

24-Port 10/100/1000 Gigabit Switch with Webview and PoE
Status Port Control. Specifies the port authorization state. The possible field values are as follows:
• Force-Authorized. The controlled port state is set to Force-Authorized (forward traffic).
• Force-Unauthorized. The controlled port state is set to Force-Unauthorized (discard traffic).
Enable Periodic Reauthentication. Permits immediate port reauthentication.
The Setting Timer button opens the Setting Timer screen to configure ports for 802.1x functionality.

Security Tab - Ports Security

Port security is a feature that allows you to configure a switch port with one or more device MAC addresses that
are authorized to access the network through that port. 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 by disabling the
port and sending a trap message.
To use port security, specify a maximum number of addresses to allow on the port and then let the Switch
dynamically learn the <source MAC address, VLAN> pair for frames received on the port. When the port has
reached the maximum number of MAC addresses the selected port will stop learning. The MAC addresses already
in the address table will be retained and will not age out. Any other device that attempts to use the port will be
prevented from accessing the Switch.
Set the action to take when an invalid address is detected on a port, select Security Status to enable security for
a port, set the maximum number of MAC addresses allowed on a port.
Action. Indicates the Port Security action. Possible field values are:
Click Save Changes to save the changes.
Chapter 5: Using the Web-based Utility for Configuration
Security Tab - Ports Security

Figure 5-30: Security - Ports Security

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