ZyXEL Communications 4728F User Manual

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Chapter 19 Port Security
XGS-4526/4528F/4728F User’s Guide
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The following table describes the labels in this screen. 
Table 48   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” in the XGS-4728F and from “0” to “8192” in 
the XGS-4526 or XGS-4528F. “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.