etharp_gratuitous macro

For Ethernet network interfaces, we might want to send "gratuitous ARP"; this is an ARP packet sent by a node in order to spontaneously cause other nodes to update an entry in their ARP cache.

Syntax

from etharp.h:88

#define etharp_gratuitous(netif) etharp_request((netif), netif_ip4_addr(netif))

Arguments

netif

References

Location	Text
etharp.h:88	#define etharp_gratuitous(netif) etharp_request((netif), netif_ip4_addr(netif))
netif.c:891	etharp_gratuitous(netif);