Frequent question: What is the default action mode for security violation?

What are the three port security violation modes?

You can configure the port for one of three violation modes: protect, restrict, or shutdown. See the “Configuring Port Security” section on page 62-5. To ensure that an attached device has the full bandwidth of the port, set the maximum number of addresses to one and configure the MAC address of the attached device.

What is the default action of port security on the interface when the maximum number of MAC address is exceeded?

MAC Limit on Untrusted Ports

You can also choose to configure the action to take when the number of MAC addresses on the untrusted ports exceeds the configured limit. By default, the MAC limit option for a port is disabled.

When a port security violation occurs what happens next by default?

Recalling from above, the default behavior is to shutdown the port and allow only one MAC address. Let’s now configure a sticky port security, to allow 10 MAC addresses on the interface. If a violation occurs, you want the port to be configured in restrict mode.

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What is the default security violation mode?

Switchport Violations

These are described in more detail below: Shutdown – When a violation occurs in this mode, the switchport will be taken out of service and placed in the err-disabled state. The switchport will remain in this state until manually removed; this is the default switchport security violation mode.

How do I check my port-security violations?

Here is a useful command to check your port security configuration. 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. cc0e.

What are port-security violation modes?

You can configure the port for one of three violation modes: protect, restrict, or shutdown. See the “Configuring Port Security” section. To ensure that an attached device has the full bandwidth of the port, set the maximum number of addresses to one and configure the MAC address of the attached device.

Which subcommand overrides the default action to take upon a security violation?

4. (Optional) Use the switchport port-security violation {protect | restrict | shutdown} interface subcommand to override the default action to take upon a security violation (shutdown).

How do I enable port security?

You can make your L3 switch port to an access interface by using the “switchport” command. 2) Then you need to enable port security by using the “switchport port-security” command. This can also be applied in a range of the interfaces on a switch or individual interfaces.

Can you put port security on a trunk port?

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.

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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.

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.

Which port security violation mode is the default quizlet?

What is the default violation mode? Shutdown.