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ZyXEL Communications XGS-4728F User Manual

Page 172

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Chapter 19 Port Security

XGS-4728F User’s Guide

172

The following table describes the labels in this screen.

Table 47 Advanced Application > Port Security > VLAN MAC Address Limit

LABEL

DESCRIPTION

Active

Select this option to activate this rule.

Port

Enter the number of the port to which this rule is applied.

VID

Enter the VLAN identification number.

Limit Number Use this field to limit the number of (dynamic) MAC addresses that may

be learned on a port in a specified VLAN. For example, if you set this field
to "5" on port 2, then only the devices with these five learned MAC
addresses may access port 2 at any one time. A sixth device would have
to wait until one of the five learned MAC addresses aged out. MAC
address aging out time can be set in the Switch Setup screen. The valid
range is from “0” to “16384”. “0” means this feature is disabled.

Add

Click Add to save your changes to the Switch’s run-time memory. The
Switch loses these changes if it is turned off or loses power, so use the
Save link on the top navigation panel to save your changes to the non-
volatile memory when you are done configuring.

Cancel Click

Cancel to reset the fields to your previous configuration.

Clear

Click Clear to clear the fields to the factory defaults.

Index

This field displays the index number of the rule. Click an index number to
change the settings.

Active

This field displays Yes when the rule is activated and No when is it
deactivated.

Port

This field displays the number of the port to which this rule is applied.

VID

This is the VLAN ID number to which the port belongs.

Limit Number This is the maximum number of MAC addresses which a port can learn in

a VLAN.

Delete

Check the rule(s) that you want to remove in the Delete column and then
click the Delete button.

Cancel

Click Cancel to clear the selected checkbox(es) in the Delete column.