Hp switch mac address lockdown

Public Version state: This is a restrictive Layer 2 security measure however not very flexible. This method is recommended for areas where there is minimal network movement particularly the Server Room. When in the Comware CLI, enable first "port-security" in system-view.

Differences between MAC Lockdown and port security

You should see "Done" once enabled. While in system-view, proceed to the specific interface i. The "port-security max-mac-count 1" restricts the switchport to only 1 MAC Address since we should have only 1 device connected. We don't need to hardcode the MAC address, the "port-security port-mode autolearn" will register the MAC address that connects on the switchport and save it on the configuration. Only 1 MAC address will be registered as per max-mac-count.

Sign Up. This is talking about the layer 2 managed switch of HP procurve G. The control on MAC-based is the one we are looking for. How can we apply the control? Thanks in advance. Level 1. Microsoft Excel 1. Windows OS 1. Who is Participating? Solutions Learn More Through Courses.

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Experts Exchange Solution brought to you by Enjoy your complimentary solution view. Get this solution by purchasing an Individual license! Start your 7-day free trial. I wear a lot of hats LVL Spears Sr. Eng Commented: LVL 1. MichaelBalack Author Commented: Dear Soulja, Please elaborate on step-by-step, thanks. Import all the permitted devices with MAC addresses.

After that how can i apply this acl to individual ports?

MAC Lockdown

Shall I key in or ffff-ffff-ffff? Learn More! Are you just trying to restrict what mac addresses use a specific port? If so, why not just use port security? Closes the port to inbound traffic from any unauthorized devices that are connected to the port. Provides the option for sending an SNMP trap notifying of an attempted security violation to a network management station and, optionally, disables the port. For more on configuring the switch for SNMP management, see "Trap receivers and authentication traps" in the Management and Configuration Guide for your switch.

Port Access: Allows only the MAC address of a device authenticated through the switch Configuring port security on a given switch port automatically enables Eavesdrop Prevention for that port.

How to control the port access based on MAC on the HP switch?

This prevents use of the port to flood unicast packets addressed to MAC addresses unknown to the switch and blocks unauthorized users from eavesdropping on traffic intended for addresses that have aged-out of the switch address table. Eavesdrop Prevention does not affect multicast and broadcast traffic; the switch floods these two traffic types out a given port regardless of whether port security is enabled on that port.

Traffic with an unknown destination address is blocked when port security is configured and Eavesdrop Prevention is enabled. You can disable Eavesdrop Prevention on ports where it may cause problems, such as on ports that are configured to use limited-continuous learning mode. See Configuring port security for more information on learning modes. The following table explains the various interactions between learning modes and Eavesdrop Prevention when Eavesdrop Prevention is disabled.

When the learning mode is "port-access", Eavesdrop Prevention will not be applied to the port. However, it can still be configured or disabled for the port. When this option is enabled, the port is prevented from transmitting packets that have unknown destination addresses. Only devices attached to the port receive packets intended for them. This option does not apply to a learning mode of port-access or continuous. Unless you configure the switch to disable a port on which a security violation is detected, the switch security measures block unauthorized traffic without disabling the port.

This implementation enables you to apply the security configuration to ports on which hubs, switches, or other devices are connected, and to maintain security while also maintaining network access to authorized users. For example:. Broadcast and Multicast traffic is always allowed, and can be read by intruders connected to a port on which you have configured port security.

Port security does not operate on either a static or dynamic trunk group. If you configure port security on one or more ports that are later added to a trunk group, the switch will reset the port security parameters for those ports to the factory-default configuration. Ports configured for either Active or Passive LACP, and which are not members of a trunk, can be configured for port security. Plan your port security configuration and monitoring according to the following:. Which devices MAC addresses are authorized on each port?

For each port, what security actions do you want? The switch automatically blocks intruders detected on that port from transmitting to the network. You can configure the switch to 1 send intrusion alarms to an SNMP management station and to 2 optionally disable the port on which the intrusion was detected. How do you want to learn of the security violation attempts the switch detects? You can use one or more of these methods:.

Through network management That is, do you want an SNMP trap sent to a net management station when a port detects a security violation attempt? This section describes the CLI port security command and how the switch acquires and maintains authorized addresses.

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The CLI uses the same command to provide two types of port security listings:. All ports on the switch with their Learn Mode and alarm Action. Without port parameters, show port-security displays Operating Control settings for all ports on a switch. With port numbers included in the command, show port-security displays Learn Mode, Address Limit, alarm Action, and Authorized Addresses for the specified ports on a switch.

Differences Between MAC Lockdown and Port Security

The following example lists the full port security configuration for a single port:. The next example shows the option for entering a range of ports, including a series of non-contiguous ports. Note that no spaces are allowed in the port number portion of the command string:.

Without an optional parameter, show mac-address lists the authorized MAC addresses that the switch detects on all ports. Lists the specified MAC address with the port on which it is detected as an authorized address. Lists the authorized MAC addresses detected on the specified port s. Specifies a list of one or more ports to which the port-security command applies. On switches covered in this guide, automatically invokes eavesdrop protection, see Eavesdrop Prevention.

Appears in the factory-default setting or when you execute no port-security. Allows the port to learn addresses from the device s to which it is connected. In this state, the port accepts traffic from any device s to which it is connected. Addresses learned in the learn continuous mode will "age out" and be automatically deleted if they are not used regularly. The default age time is five minutes. Addresses learned this way appear in the switch and port address tables and age out according to the MAC Age Interval in the System Information configuration screen of the Menu interface or the show system information listing.

For more information on the mac-age-time command see "Interface Access and System Information" in the Management and Configuration Guide for your switch. Enables you to use the mac-address parameter to specify the MAC addresses of the devices authorized for a port, and the address-limit parameter explained below to specify the number of MAC addresses authorized for the port. You can authorize specific devices for the port, while still allowing the port to accept other, non-specified devices until the device limit has been reached.

That is, if you enter fewer MAC addresses than you authorized, the port authorizes the remaining addresses in the order in which it automatically learns them. For example, if you use address-limit to specify three authorized devices, but use mac-address to specify only one authorized MAC address, the port adds the one specifically authorized MAC address to its authorized-devices list and the first two additional MAC addresses it detects.

You use mac-address to authorize MAC address ba80 for port A4. You use address-limit to allow three devices on port A4 and the port detects these MAC addresses:. In this example port A4 would assume the following list of authorized addresses:. The remaining MAC address detected by the port, c45a1, is not allowed and is handled as an intruder.

Learned addresses that become authorized do not age-out. See also Retention of static addresses. Using the static parameter with a device limit greater than the number of MAC addresses specified with mac-address can allow an unwanted device to become "authorized". This is because the port, to fulfill the number of devices allowed by the address-limit parameter see below , automatically adds devices it detects until it reaches the specified limit. If Enables you to use Port Security with Must specify which MAC addresses are allowed for this port. Range is 1 default to 64 and addresses are not ageable.

Addresses are saved across reboots.