3Com WX3000 operation manual Configuring Port Security Features, Configuring the NTK feature

To do…		Use the command…		Remarks
Enter Ethernet port view		interface interface-type		—
		interface-number
		port-security port-mode
		{ autolearn
		mac-and-userlogin-secure	Required
		mac-and-userlogin-secure-e
		xt mac-authentication	By default, a port operates in
	mac-else-userlogin-secure		noRestriction mode. In this
Set the port security mode	mac-else-userlogin-secure-e		mode, access to the port is not
	xt secure userlogin		restricted.
	userlogin-secure		You can set a port security
	userlogin-secure-ext
			mode as needed.
	userlogin-secure-or-mac
	userlogin-secure-or-mac-ext
	userlogin-withoui }

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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-securitymax-mac-countcommand.

After you set the port security mode to autolearn, you cannot configure any static or blackhole MAC addresses on the port.

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-securityport-modecommand.

If the port-securityport-modemode command has been executed on a port, none of the following can be configured on the same port:

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Maximum number of MAC addresses that the port can learn Reflector port for port mirroring

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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
	port-security ntk-mode	Required
Configure the NTK feature	{ ntkonly	Be default, NTK is disabled on
	ntk-withbroadcasts	a port, namely all frames are
	ntk-withmulticasts }	allowed to be sent.

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