Cisco Tech Talk: Configure Port Security via CLI on Catalyst 1300 Switches
Securing your network starts at the physical layer. If you want to ensure that only authorized devices can connect to your infrastructure, port security is an essential tool. In this episode of Cisco Tech Talk, we demonstrate how to configure and manage port security on your Cisco Catalyst 1300 series switches using the Command Line Interface (CLI).
By controlling access at the port level, you can prevent unauthorized devices from gaining network access. We walk you through the different security modes—such as Lock mode and Max-Addresses—and explain how to configure specific violation actions like discarding packets or shutting down a port to maintain a robust and secure network environment.
What You Will Learn in This Video:
-How to enable port security and understand the default "Lock" mode.
-The differences between security actions: "discard," "forward," and "discard-shutdown."
-How to set a maximum number of allowed MAC addresses per port to support multiple devices like phones and workstations.
-How to use CLI commands to verify port security status and monitor learned MAC addresses.
-Best practices for troubleshooting and re-enabling ports after a security violation.
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