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Chapter 23
Configuring Port-Based Traffic Control
Enabling and Configuring Port Security
Beginning in privileged EXEC mode, follow these steps to restrict input to an interface by limiting and
identifying MAC addresses of the stations allowed to access the port:
Command
Step 1
configure terminal
Step 2
interface interface-id
Step 3
switchport mode {access | trunk}
Step 4
switchport voice vlan vlan-id
Step 5
switchport port-security
Step 6
switchport port-security
[maximum value [vlan {vlan-list |
{access | voice}}]]
OL-8915-03
Purpose
Enter global configuration mode.
Specify the interface to be configured, and enter interface configuration
mode.
Set the interface switchport mode as access or trunk; an interface in the
default mode (dynamic auto) cannot be configured as a secure port.
Enable voice VLAN on a port.
vlan-id—Specify the VLAN to be used for voice traffic.
Enable port security on the interface.
(Optional) Set the maximum number of secure MAC addresses for the
interface. The maximum number of secure MAC addresses that you can
configure on a switch is set by the maximum number of available MAC
addresses allowed in the system. This number is set by the active Switch
Database Management (SDM) template. See
Switch SDM
Template."This number is the total of available MAC addresses,
including those used for other Layer 2 functions and any other secure MAC
addresses configured on interfaces.
(Optional) vlan—set a per-VLAN maximum value
Enter one of these options after you enter the vlan keyword:
vlan-list—On a trunk port, you can set a per-VLAN maximum value on
•
a range of VLANs separated by a hyphen or a series of VLANs separated
by commas. For nonspecified VLANs, the per-VLAN maximum value is
used.
access—On an access port, specify the VLAN as an access VLAN.
•
voice—On an access port, specify the VLAN as a voice VLAN.
•
The voice keyword is available only if a voice VLAN is configured on
Note
a port and if that port is not the access VLAN. If an interface is
configured for voice VLAN, configure a maximum of two secure
MAC addresses.
Cisco Catalyst Blade Switch 3020 for HP Software Configuration Guide
Configuring Port Security
Chapter 6, "Configuring the
23-13
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