ZyXEL ES-3124PWR User Guide - Page 140

Table 43

Page 140 highlights

Chapter 17 Port Security Figure 76 Advanced Application > Port Security The following table describes the labels in this screen. Table 43 Advanced Application > Port Security LABEL DESCRIPTION Active Select this option to enable port security on the Switch. Port This field displays a port number. * Settings in this row apply to all ports. Use this row only if you want to make some settings the same for all ports. Use this row first to set the common settings and then make adjustments on a port-by-port basis. Note: Changes in this row are copied to all the ports as soon as you make them. Active Select this check box to enable the port security feature on this port. The Switch forwards packets whose MAC address(es) is in the MAC address table on this port. Packets with no matching MAC address(es) are dropped. Clear this check box to disable the port security feature. The Switch forwards all packets on this port. Address Learning MAC address learning reduces outgoing broadcast traffic. For MAC address learning to occur on a port, the port itself must be active with address learning enabled. Limited Number of Learned MAC Address Use this field to limit the number of (dynamic) MAC addresses that may be learned on a port. 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. 140 ES-3124 Series User's Guide

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Chapter 17 Port Security
ES-3124 Series User’s Guide
140
Figure 76
Advanced Application > Port Security
The following table describes the labels in this screen.
Table 43
Advanced Application > Port Security
LABEL
DESCRIPTION
Active
Select this option to enable port security on the Switch.
Port
This field displays a port number.
*
Settings in this row apply to all ports.
Use this row only if you want to make some settings the same for all ports. Use this
row first to set the common settings and then make adjustments on a port-by-port
basis.
Note: Changes in this row are copied to all the ports as soon as you
make them.
Active
Select this check box to enable the port security feature on this port. The Switch
forwards packets whose MAC address(es) is in the MAC address table on this port.
Packets with no matching MAC address(es) are dropped.
Clear this check box to disable the port security feature. The Switch forwards all
packets on this port.
Address
Learning
MAC address learning reduces outgoing broadcast traffic. For MAC address
learning to occur on a port, the port itself must be active with address learning
enabled.
Limited Number
of Learned
MAC Address
Use this field to limit the number of (dynamic) MAC addresses that may be learned
on a port. 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.