1-6
To do… Use the command… Remarks
Enter Ethernet port view
interface interface-type
interface-number
—
Set the port security mode
port-security port-mode
{ autolearn |
mac-and-userlogin-secure |
mac-and-userlogin-secure-e
xt | mac-authentication |
mac-else-userlogin-secure |
mac-else-userlogin-secure-e
xt | secure | userlogin |
userlogin-secure |
userlogin-secure-ext |
userlogin-secure-or-mac |
userlogin-secure-or-mac-ext
| userlogin-withoui }
Required
By default, a port operates in
noRestriction mode. In this
mode, access to the port is not
restricted.
You can set a port security
mode as needed.
z Before setting the port security mode to autolearn, you need to set the maximum number of MAC
addresses allowed on the port with the port-security max-mac-count command.
z After you set the port security mode to autolearn, you cannot configure any static or blackhole
MAC addresses on the port.
z If the port is in a security mode other than noRestriction, before you can change the port security
mode, you need to restore the port security mode to noRestriction with the undo port-security
port-mode command.
If the port-security port-mode mode command has been executed on a port, none of the following can
be configured on the same port:
z Maximum number of MAC addresses that the port can learn
z Reflector port for port mirroring
z Link aggregation
Configuring Port Security Features
Configuring the NTK feature
Follow these steps to configure the NTK feature:
To do… Use the command… Remarks
Enter system view
system-view
—
Enter Ethernet port view
interface interface-type
interface-number
—
Configure the NTK feature
port-security ntk-mode
{ ntkonly |
ntk-withbroadcasts |
ntk-withmulticasts }
Required
Be default, NTK is disabled on
a port, namely all frames are
allowed to be sent.
