ThomasHabets/arping — pull request #11 by ThomasOberhammer (2012-11-30 15:54:41+00:00)
Title: Implement gratuitous ARP

Hi Thomas

I needed arping to send real gratuitous ARP, therefore I implemented this feature. Now I gladly feed the patch back to the project. I saw that this is also on your issues list (issue #4).

Thomas
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Allows to send real gratuitous ARP with the destination MAC address
field in the ARP frame set to the broadcast address. This is needed
because some devices do not update their ARP table if this field is
set to zero.

Example:
arping -i -U

Signed-off-by: Thomas Oberhammer
Signed-off-by: Roman Hoog Antink