Arp Inspection - ZyXEL Communications GS1510-16 User Manual

Chapter 18 IP Source Guard

18.6 ARP Inspection

Use this screen to enable/disable ARP Inspection. You can also use this screen
to specify whether ports are trusted or untrusted and which VLANs are enabled for
ARP inspection.
To open this screen, click Security > IP Source Guard > ARP Inspection >
ARP Inspection.
Figure 57 ARP Inspection
The following table describes the labels in this screen.
Table 32 ARP Inspection
LABEL
State
VLAN State
Trusted Ports
Select All
110
DESCRIPTION
Use this to Enable or Disable ARP inspection on the Switch.
Enter the VLAN IDs you want the Switch to enable ARP Inspection
for. You can designate multiple VLANs individually by using a
comma (,) and by range with a hyphen (-).
Select the ports which are trusted and deselect the ports which
are 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.
Click this to set all ports to trusted.
GS1510 Series User's Guide