Gratuitous Arp - D-Link DGS-1250 Series Reference Manual

DGS-1250 Series Gigabit Ethernet Smart Managed Switch Web UI Reference Guide
Parameter
Mask
Hardware Address
Type
Click the Find button to locate a specific entry based on the information entered.
Click the Clear All button to clear all dynamic ARP cache.
Click the Clear button to clear the dynamic ARP cache associated with the specific entry.
Enter a page number and click the Go button to navigate to a specific page when multiple pages exist.

Gratuitous ARP

This window is used to display and configure the gratuitous ARP settings. A gratuitous ARP request packet is an ARP
request packet where the source and the destination IP address are both set to the IP address of the sending device
and the destination MAC address is the broadcast address.
Generally, a device uses the gratuitous ARP request packet to discover whether the IP address is duplicated by other
hosts or to preload or reconfigure the ARP cache entry of hosts connected to the interface.
To view the following window, click L3 Features > Gratuitous ARP, as shown below:
The fields that can be configured are described below:
Parameter
Gratuitous ARP Trap State
Click the Apply button to accept the changes made.
Description
After the IP Address option was selected, enter the mask address for the IP
address here.
Select and enter the MAC address to display here.
Select the Type option here. Options to choose from are All and Dynamic.
Figure 6-4 Gratuitous ARP Window
Description
Select to enable or disable the gratuitous ARP feature trap state here.
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