Port Security Commands - ZyXEL Communications Ethernet Switch Cli Reference Manual

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Port Security Commands

Use these commands to allow only packets with dynamically learned MAC addresses and/or
configured static MAC addresses to pass through a port on the Switch. For maximum port
security, enable port security, disable MAC address learning and configure static MAC
address(es) for a port.

It is not recommended you disable both port security and MAC address
learning because this will result in many broadcasts.
54.1 Command Summary
The following section lists the commands for this feature.
Table 124 port-security Command Summary
COMMAND
show port-security
show port-security <port-list>
port-security
no port-security
port-security <port-list>
no port-security <port-list>
port-security <port-list> learn
inactive
no port-security <port-list>
learn inactive
port-security <port-list>
address-limit <number>
port-security <port-list> MAC-
freeze
port-security <port-list> vlan
<vlan-id> address-limit <number>
Ethernet Switch CLI Reference Guide
DESCRIPTION
Displays all port security settings.
Displays port security settings on the specified port(s).
Enables port security on the Switch.
Disables port security on the device.
Enables port security on the specified port(s).
Disables port security on the specified port(s).
Disables MAC address learning on the specified port(s).
Enables MAC address learning on the specified ports.
Limits the number of (dynamic) MAC addresses that may be
learned on the specified port(s).
Stops MAC address learning and enables port security on the
port(s).
Note: All previously-learned dynamic MAC
addresses are saved to the static MAC
address table.
Limits the number of (dynamic) MAC addresses that may be
learned on the specified port(s) in a specified VLAN.
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