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24-Port Gigabit (Hi-Power) PoE+ Ethernet Smart Managed Pro Switch with 2 SFP Ports
Manage Device Security User Manual298
7. To enable port security on the switch, select the Port Security Mode Enable radio button.
The default is Disable.
8. Click the Apply
button.
Your settings are saved.
By default, port security is disabled for individual ports.
Note: After you enable
port security for individual ports (see
Configure a port
security interface on page 298), you can return to this page and click
the Refresh button t
o refresh the page with the latest information about
the ports.
The Port Security Violations table shows information about violations that occurred on ports
that are enabled for port security
.
The following table describes the fields in the Port Security Violations table.
Table 54. Port Security Violations information
Field Description
Port The physical interface.
Last Violation MAC The source MAC address of the last packet that was discarded at a locked port.
VLAN ID The VLAN ID corresponding to the last MAC address violation.
Configure a port security interface
A MAC address can be defined as allowed on a port by one of two methods: dynamically or
statically. Both methods can occur concurrently when a port is locked.
Dynamic locking implements a first arrival mechanism for port security. You specify how
many addresses can be learned on the locked port. If the limit is not reached, a packet with
an unknown source MAC address is learned and forwarded normally. If the limit is reached,
no more addresses are learned on the port. Any packets with source MAC addresses that
were not already learned are dropped.
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