D-Link DGS-1510-28XMP/ME [218/342] Impb port settings

DGS-1510/ME Series Metro Ethernet Switch Web UI Reference Guide

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to apply to all ports.

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:

Figure 8-27 IMPB Port Settings window

The fields that can be configured are described below:

Parameter Description

From Port / To Port

Select a range of ports to set for IP-MAC-port binding.

ARP Inspection

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.

Enabled (Loose) - In this mode, all packets are forwarded by default until an illegal ARP

packet is detected.

The default value is Disabled.

IP Inspection

When both ARP and IP inspections are enabled, all IP packets are checked. The legal

IP packets are forwarded, while the illegal IP packets are dropped. When IP Inspection

is enabled, and ARP Inspection is disabled, all non-IP packets (Ex. L2 packets, or ARP)

are forwarded by default.

The default value is Disabled.

Protocol

Use the drop-down menu to select the protocol.