ZyXEL Communications XGS2210-28 User Manual page 281

Figure 210 Advanced Application > IP Source Guard > IPv4 Source Guard Setup > ARP Inspection >
Configure > Port (Stacking mode)
The following table describes the labels in this screen.
Table 119 Advanced Application > IP Source Guard > IPv4 Source Guard Setup > ARP Inspection >
Configure > Port
LABEL
Slot (Stacking mode)
Port (Standalone or
stacking mode)
*
Trusted State
Limit
Chapter 26 IP Source Guard
DESCRIPTION
This field appears only in stacking mode. Click the drop-down list to choose the slot
number of the Switch in a stack.
This field displays the port number. In stacking mode, the first field is the slot ID and the
second field is the port number. If you configure the * port, the settings are applied to
all of the ports.
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.
Select whether this port is a trusted port (Trusted) or an untrusted port (Untrusted).
The Switch does not discard ARP packets on trusted ports for any reason.
The Switch discards ARP packets on untrusted ports in the following situations:
• The sender's information in the ARP packet does not match any of the current
bindings.
• The rate at which ARP packets arrive is too high. You can specify the maximum
rate at which ARP packets can arrive on untrusted ports.
These settings have no effect on trusted ports.
XGS2210 Series User's Guide
281