Impb Port Settings - D-Link xStack DGS-3620 Series Reference Manual

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xStack DGS-3620 Series Layer 3 Managed Stackable Gigabit Switch Web UI Reference Guide
Address Binding DHCP
Snooping Entry File
Auto Save
Save DHCP Snooping
Binding Entry
Click the Apply button to accept the changes made for each individual section.

IMPB Port Settings

Select a port or a range of ports with the From Port and To Port fields. Enable or disable the port with the State,
Allow Zero IP and Forward DHCP Packet field, and configure the port's Max Entry.
To view this window, click Security > IP-MAC-Port Binding (IMPB) > IMPB Port Settings as shown below:
The fields that can be configured are described below:
Parameter
Unit
From Port / To Port
ARP Inspection
This option is used to save the DHCPv4 snooping binding entries. Enter the
filename here. Note: This feature is only supported on devices that support external
memory (e.g. SD card).
Select to enable or disable the automatic save option.
Click the Save button to manually initiate the saving of the DHCP snooping binding
entry here.
Figure 9-26 IMPB Port Settings window
Description
Select the unit you wish to configure.
Select a range of ports to set for IP-MAC-port binding.
When the ARP inspection function is enabled, the legal ARP packets are forwarded,
while the illegal packets are dropped.
Disabled - Disable the ARP inspection function.
Enabled (Strict) - This mode disables hardware learning of the MAC address. All
packets are dropped by default until a legal ARP or IP packets are detected. When
enabling this mode, the Switch stops writing dropped FDB entries on these ports. If
detecting legal packets, the Switch needs to write forward FDB entry.
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