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The port security's limit on the number of secure MAC addresses on a port is independent of the MAC
learning limit described in MAC address table configuration. For more information about MAC address
table configuration, see
Layer 2—LAN Switching Configuration Guide
.
To set the maximum number of secure MAC addresses allowed on a port:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter Layer 2 Ethernet
interface view.
interface
interface-type
interface-number
N/A
3.
Set the maximum number of
secure MAC addresses
allowed on a port.
port-security max-mac-count
count-value
By default, port security does not
limit the number of secure MAC
addresses on a port.
Setting the port security mode
Before you set a port security mode for a port, complete the following tasks:
•
Disable 802.1X and MAC authentication.
•
Verify that the port does not belong to any aggregation group.
•
If you are configuring the autoLearn mode, set port security's limit on the number of secure MAC
addresses. You cannot change the setting when the port is operating in autoLearn mode.
When you set the port security mode, follow these guidelines:
•
You can specify a port security mode when port security is disabled, but your configuration cannot
take effect.
•
Changing the port security mode of a port logs off the online users of the port.
•
Do not enable 802.1X authentication or MAC authentication on a port where port security is
configured.
To enable a port security mode:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
(Optional.) Set an OUI value
for user authentication.
port-security oui index
index-value
mac-address
oui-value
By default, no OUI value is
configured for user authentication.
This command is required for the
userlogin-withoui
mode.
You can set multiple OUIs, but
when the port security mode is
userlogin-withoui
, the port allows
one 802.1X user and only one user
that matches one of the specified
OUIs.
3.
Enter Layer 2 Ethernet
interface view.
interface
interface-type
interface-number
N/A
