This is a low-level form of security that can be used to prevent unwanted devices from being connected to the network. If traffic from an invalid MAC is detected, it will be blocked or dropped. ![]() ![]() Port security is a method of securing an interface by only allowing traffic from a specific set or number of MAC Addresses. Therefore the list of authorized addresses can be dynamic over time.In this article, I will be discussing Switch Port Security. TheĪuthorized addresses in this mode will age out of the system, The table has reached its 'address-limit', any new source MACĪddresses received on the port constitutes an intrusion. New authorized addresses are learned, they are stored in a table. MAC addresses heard on this port become the authorized addresses. If 'limited-continuous' is specified, the first 'address-limit' source This line for port 1-23: port-security 1-23 address-limit 1 learn-mode limited-continuous action none It can be done from CLI for multiple ports at once. It need to be learn mode : limited-continuous. But will that be remembered "static" when the user change to another device? I am quite sure that it will limit the port to only 1 MAC. ![]() But is this accomplished doing this in the web interface security -> port-security (or similar cli command) learn-mode: static
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