What is the purpose of the Switchport port security MAC address sticky command?
Switchport Security MAC Addresses
The configuration for a static secure MAC address is stored in the running configuration by default and can be made permanent by saving them to the startup configuration.
How does a switch interface using sticky port security handle MAC addresses?
Switch port security limits the number of valid MAC addresses allowed on a port. When a MAC address, or a group of MAC addresses are configured to enable switch port security, the switch will forward packets only to the devices using those MAC addresses.
What is port security MAC address?
Port security enables you to restrict the number of MAC addresses (termed secure MAC addresses) on a port, allowing you to prevent access by unauthorized MAC addresses. It also allows you to configure a maximum number of secure MAC addresses on a given port (and optionally for a VLAN for trunk ports).
What does Switchport port security do?
Overview. The switchport security feature (Port Security) is an important piece of the network switch security puzzle; it provides the ability to limit what addresses will be allowed to send traffic on individual switchports within the switched network.
What does port Status secure down mean?
If a port security violation is present on a port, you will see the “Port Status” as “Secure-Down”. In this situation, note the “Last Source Address” field. … If the “auto recovery” feature is not enabled and port security violation occurs, the port is disabled and put into “err-disabled” state.
How port security can be done?
Port security implements two traffic filtering methods, dynamic locking and static locking. These methods can be used concurrently. Dynamic locking. You can specify the maximum number of MAC addresses that can be learned on a port.
Why would you enable port security on a switch?
The main reason to use port security in a switch is to stop or prevent unauthorized users to access the LAN.
Why is it important to secure ports?
Port security is vital because marine transport is a very thriving and extensively used form of conveyance, especially for cargo transportation. Since the cargo containers could be used inappropriately, it becomes important that proper monitoring and inspection of the transferred cargo is carried out.
A. Port security blocks unauthorized access by examining the source address of a network device.
What is sticky port?
Requirement: Sticky MAC is a port security feature that dynamically learns MAC addresses on an interface and retains the MAC information in case the Mobility Access Switch reboots. … Allowing the port to continuously learn MAC addresses is a security risk.
How do you show port security violations?
Use show port-security interface to see the port security details per interface. You can see the violation mode is shutdown and that the last violation was caused by MAC address 0090.
How do I configure sticky port security?
To enable sticky learning, enter the switchport port-security mac-address sticky command. When you enter this command, the interface converts all the dynamic secure MAC addresses, including those that were dynamically learned before sticky learning was enabled, to sticky secure MAC addresses.