What does Switchport port security do?

The switchport security feature offers the ability to configure a switchport so that traffic can be limited to only a specific configured MAC address or list of MAC addresses.

How do I enable port security?

To configure port security, three steps are required:

1. define the interface as an access interface by using the switchport mode access interface subcommand.
2. enable port security by using the switchport port-security interface subcommand.

How does port security work Cisco?

Port security is a layer two traffic control feature on Cisco Catalyst switches. It enables an administrator configure individual switch ports to allow only a specified number of source MAC addresses ingressing the port.

How do I check if port security is enabled?

Step-1 : To check and analyze the port security configuration on switch, user needs to access privilege mode of the command line interface. ‘show port-security address’ command is executed to check the current port security status.

What is Switchport security in CCNA?

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.

Why is port security important?

Prevents Thieves from Stealing Goods. Since shipping containers cannot be manned at all times, port security is essential for keeping goods safe from thieves. Some areas of ports are inaccessible for human patrol, but other security measures can protect these items from thieves.

What is dynamic port security?

Dynamic – Dynamic secure MAC addresses are learned from the device (or devices) connected to the switchport. These addresses are stored in the address table only and will be lost when the switchport state goes down or when the switch reboots.

What are the three types of port security?

On Cisco equipment there are three different main violation types: shutdown, protect, and restrict.

Which command will enable port security?

Use the switchport port-security command to enable port-security. I have configured port-security so only one MAC address is allowed. Once the switch sees another MAC address on the interface it will be in violation and something will happen.

What is port security?

Port security is part of a broader definition concerning maritime security. It refers to the defense, law and treaty enforcement, and counterterrorism activities that fall within the port and maritime domain.

Can we enable port security in routers?

You can enable port security on a per port basis.

How do I enable port security on a Cisco switch?

Configuration Steps:

1. Your switch interface must be L2 as “port security” is configure on an access interface.
2. Then you need to enable port security by using the “switchport port-security” command.
3. This step is optional, but you can specify how many MAC addresses the switch can have on one interface at a time.