ZyXEL Communications MES-3528 User Manual page 245

ARP packets on each untrusted port. To open this screen, click Advanced
Application > IP Source Guard > ARP Inspection > Configure > Port.
Figure 128 ARP Inspection Port Configure
The following table describes the labels in this screen.
Table 81 ARP Inspection Port Configure
LABEL
Port
Trusted State
Limit
Rate (pps)
MES-3528 User's Guide
DESCRIPTION
This field displays the port number. If you configure the * port,
the settings are applied to all of the ports.
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.
Specify the maximum rate (1-2048 packets per second) at which
the Switch receives ARP packets from each port. The Switch
discards any additional ARP packets. Enter 0 to disable this limit.
Chapter 26 IP Source Guard
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