To configure port security we need to access the command prompt of switch. Click Switch and click CLI and press Enter Key. Port can be secure from interface mode. Use enable command to move in Privilege Exec mode.
Also question is, 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.
Likewise, how do I enable ports on a switch? Select Group Port Config. In the graphic for each switch that you want to configure, select the ports that you want to configure. Selected ports display green. Click the Enable Port button to enable or disable the selected ports.
Similarly one may ask, which command is used to enable port security on an interface?
Configuring Port Security on an Interface
| Command | |
|---|---|
| Step 2 | Switch(config-if)# switchport mode access |
| Step 3 | Switch(config-if)# switchport port-security |
| Step 4 | Switch(config-if)# switchport port-security maximum value |
| Step 5 | Switch(config-if)# switchport port-security violation {restrict | shutdown} |
What is port security on a switch?
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.
12 Related Question Answers Found
Is a dynamic port?
dynamic port – Computer Definition A port that can be used by any computer application program to communicate with any other application program running Transmission Control Protocol (TCP) or User Datagram Protocol (UDP), with no registration requirements. Dynamic ports are numbered from 49,152 through 65,535.
Which command disables DTP?
Use switchport nonegotiate command under that port to disable DTP.
Why should unused ports on a switch be disabled?
Disable Unused Ports A simple method that many administrators use to help secure the network from unauthorized access is to disable all unused ports on a switch. It is simple to make configuration changes to multiple ports on a switch. If a range of ports must be configured, use the interface range command.
Which two features are compatible with port security?
A port configured with the switchport mode dynamic interface configuration command. You must set the maximum allowed secure addresses on the port to two plus the maximum number of secure addresses allowed on the access VLAN. Note. Type of Port or Feature on Port Compatible with Port Security Flex Links Yes
What is port security in networking?
Port security is a method of securing an interface by only allowing traffic from a specific set or number of MAC Address. If traffic from an invalid MAC is detected, it will be blocked or dropped. This is a low level form of security that can be used to prevent unwanted devices from being connected to the network.
What is port security sticky?
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.
What is the purpose of the Switchport command?
What is the purpose of the switchport command? A. It ensures that only the device with the MAC address 0018.
How do I configure a switch?
How to configure Cisco switches – A step by step guide 1 Before We Begin: Know What Hardware You’re Using and Download PuTTY. 2 Connect the Switch to PuTTY. 3 Enter Privileged EXEC Mode and Set a Hostname for the Switch. 4 Assign a Password to the Switch. 5 Configure Telnet and Console Access Passwords. 6 Configure IP Addresses With Telnet Access.
What is the default port security setting on a switch port?
The default configuration of a Cisco switch has port security disabled. If you enable switch port security, the default behavior is to allow only 1 MAC address, shutdown the port in case of security violation and sticky address learning is disabled.
How do I disable a port on a switch?
To disable a port: Locate the port(s), click Disable. Enable/disable switch ports procedure In the main menu of the web administration interface under Miscellaneous, click the Enable/Disable Ethernet Switch Ports link. The Enable/Disable Ethernet Switch Ports screen appears, showing either:
What is no shut command?
The no shutdown command enables an interface (brings it up). This command must be used in interface configuration mode. It is useful for new interfaces and for troubleshooting. This command can be abbreviated no shut.
How do I count ports on a Cisco switch?
To see summary information on all ports on the switch, enter the show interfaces status command with no arguments. Specify a particular module number to see information on the ports on that module only. Enter both the module number and the port number to see detailed information about the specified port.