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When can a port security violation occur on a switch?
A switchport violation occurs in one of two situations: When the maximum number of secure MAC addresses has been reached (by default, the maximum number of secure MAC addresses per switchport is limited to 1) An address learned or configured on one secure interface is seen on another secure interface in the same VLAN.
What is the difference between the violation mode restrict and protect?
Restrict – When a violation occurs in this mode, the switchport will permit traffic from known MAC addresses to continue sending traffic while dropping traffic from unknown MAC addresses. However, unlike the protect violation type, a message is also sent indicating that a violation has occurred.
What actions are taken by a switch when port security violation occurs?
In most of today’s scenarios when the switch detects a security violation, the switch automatically shuts down that port. A switch can be configured to only protect or restrict that port.
What is the benefit of port security )?
Port Security Benefits Allows for limiting the number of MAC addresses on a given port. Packets that have a matching MAC address (secure packets) are forwarded; all other packets (unsecure packets) are restricted. Enabled on a per port basis. When locked, only packets with allowable MAC address will be forwarded.
What is Switch port security?
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. Once an organization decides to utilize the switchport security feature on their networks,…
What is sticky port security?
Persistent MAC learning, also known as sticky MAC, is a port security feature that enables an interface to retain dynamically learned MAC addresses when the switch is restarted or if the interface goes down and is brought back online.
What does port security mean?
Port security. Port security refers to the defense, law and treaty enforcement, and counterterrorism activities that fall within the port and maritime domain. It includes the protection of the seaports themselves, the protection and inspection of the cargo moving through the ports, and maritime security.