diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c
index 08174a2..7b1162b 100644
--- a/net/ipv4/arp.c
+++ b/net/ipv4/arp.c
@@ -1185,6 +1185,8 @@ out:
 
 static int arp_netdev_event(struct notifier_block *this, unsigned long event, void *ptr)
 {
+	struct in_device *in_dev;
+	struct in_ifaddr *ifa;
 	struct net_device *dev = ptr;
 
 	if (dev->nd_net != &init_net)
@@ -1194,6 +1196,22 @@ static int arp_netdev_event(struct notifier_block *this, unsigned long event, vo
 	case NETDEV_CHANGEADDR:
 		neigh_changeaddr(&arp_tbl, dev);
 		rt_cache_flush(0);
+		
+		/* Send gratuitous ARP to the neighbours to update their arp tables */
+	
+		rcu_read_lock();
+		in_dev = __in_dev_get_rcu(dev);
+		if (in_dev == NULL)
+			goto out;
+		for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next)
+			arp_send(ARPOP_REQUEST, ETH_P_ARP, 
+				ifa->ifa_address,
+				dev, 
+				ifa->ifa_address,
+				NULL, dev->dev_addr, NULL);
+out:
+	rcu_read_unlock();
+
 		break;
 	default:
 		break;