What can you do? Configure port security on the switch. You’ve just enabled port security on an interface of a Catalyst 2950 switch. You want to generate an SNMP trap whenever a violation occurs.
What are the steps involved to configure port security How do we see a security violation?
How do we see a security violation? Todisplaytheport securityconfiguration on an interface, use theshow port-securitycommand. Shutdown – When aviolationoccurs in thismode, the switchport will be taken out of service and placed in the err-disabled state.
How does port security identify a device?
Port security uses the MAC address to identify allowed and denied devices. By default, port security allows only a single device to connect through a switch port. You can, however, modify the maximum number of allowed devices.
What are the three types of port security?
On Cisco equipment there are three different main violation types: shutdown, protect, and restrict.
What is the purpose of port security?
Port Security helps secure the network by preventing unknown devices from forwarding packets. When a link goes down, all dynamically locked addresses are freed. The port security feature offers the following benefits: You can limit the number of MAC addresses on a given port.
What are the port security violations?
A security violation occurs if the maximum number of secure MAC addresses have been added to the address table and the port receives traffic from a MAC address that is not in the address table. You can configure the port for one of three violation modes: protect, restrict, or shutdown.
What is the command in disabling unused switch ports?
Disable Unused Ports
Navigate to each unused port and issue the Cisco IOS shutdown command. If a port later on needs to be reactivated, it can be enabled with the no shutdown command.
What is port security aging?
The inactivity aging feature prevents the unauthorized use of a secure MAC address when the authorized user is offline. The feature also removes outdated secure MAC addresses so that new secure MAC addresses can be learned or configured.
Can we configure port security on trunk ports?
Port security supports trunks. –On a trunk, you can configure the maximum number of secure MAC addresses both on the trunk and for all the VLANs on the trunk. –You can configure the maximum number of secure MAC addresses on a single VLAN or a range of VLANs.
What are sticky ports?
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 I enable port security on an interface?
You can configure all secure MAC addresses by using the switchport port-security mac-address mac_address interface configuration command. You can allow the port to dynamically configure secure MAC addresses with the MAC addresses of connected devices.