ZyXEL MES-3528 User Guide - Page 233
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Chapter 25 IP Source Guard 25.7.1 ARP Inspection Port Configure Use this screen to specify whether ports are trusted or untrusted ports for ARP inspection. You can also specify the maximum rate at which the Switch receives ARP packets on each untrusted port. To open this screen, click Advanced Application > IP Source Guard > ARP Inspection > Configure > Port. Figure 127 ARP Inspection Port Configure The following table describes the labels in this screen. Table 76 ARP Inspection Port Configure LABEL Port Trusted State 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. MES-3528 User's Guide 233