Configuration Guidelines; Recommended Configuration Procedure - HP 1920 Series User Manual

The maximum number of users a port supports equals the maximum number of secure MAC addresses
that port security allows or the maximum number of concurrent users the authentication mode in use
allows, whichever is smaller.
An OUI is a 24-bit number that uniquely identifies a vendor, manufacturer, or organization. In MAC
addresses, the first three octets are the OUI.

Configuration guidelines

When you configure port security, follow these restrictions and guidelines:
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Recommended configuration procedure

To configure basic port security mode:
To configure advanced port security mode:
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Before you enable port security, disable 802.1X and MAC authentication globally.
Only one port security mode can be configured on a port.
The outbound restriction feature is not supported in this release.
Step
1. Configuring global settings for
port security
2. Configuring basic port security
control
3. Configuring secure MAC
addresses
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Remarks
Required.
This function enables port security globally and configures intrusion
protection actions.
By default, port security is disabled globally.
Required.
This function configures the basic port security mode, maximum secure
MAC addresses, intrusion protection, and outbound restriction for a
port.
By default, port security is disabled on all ports, and access to the ports
is not restricted.
Optional.
Secure MAC addresses never age out or get lost if saved before the
device restarts. One secure MAC address can be added to only one
port in the same VLAN. You can bind a MAC address to one port in the
same VLAN.
Secure MAC addresses can be learned by a port in basic port security
mode or manually configured in the Web interface.
When the maximum number of secure MAC addresses is reached, no
more can be added. The port allows only packets sourced from a secure
MAC address to pass through.
By default, no secure MAC addresses are configured.
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