From 6ecfc952edf3bb512e8e00cfa69b062aaf01f51b Mon Sep 17 00:00:00 2001
From: Jeremy Lakeman <Jeremy.Lakeman@gmail.com>
Date: Fri, 30 Aug 2013 15:11:48 +0930
Subject: [PATCH] Schedule ack packets in response to neighbour broadcasts

---
 overlay_packetformats.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/overlay_packetformats.c b/overlay_packetformats.c
index 513fdefe..caf91fd5 100644
--- a/overlay_packetformats.c
+++ b/overlay_packetformats.c
@@ -470,7 +470,8 @@ int packetOkOverlay(struct overlay_interface *interface,unsigned char *packet, s
       if (header_valid&HEADER_PROCESS)
 	process_incoming_frame(now, interface, &f, &context);
 
-      if (f.next_hop == my_subscriber || f.destination == my_subscriber)
+      // We may need to schedule an ACK / NACK soon when we receive a payload addressed to us, or broadcast
+      if (f.next_hop == my_subscriber || f.destination == my_subscriber || !f.destination)
         link_state_ack_soon(context.sender);
     }