From 5013bb8e293ff15789cae6cd6b189cb42845114b Mon Sep 17 00:00:00 2001
From: Martin Preuss <martin@aquamaniac.de>
Date: Sat, 23 Aug 2025 00:09:01 +0200
Subject: [PATCH] avr network app: only respond to ping request if dest address
 matches.

---
 avr/apps/network/main.asm | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/avr/apps/network/main.asm b/avr/apps/network/main.asm
index 09ef659..e4fc8cc 100644
--- a/avr/apps/network/main.asm
+++ b/avr/apps/network/main.asm
@@ -189,6 +189,15 @@ appNetworkHandleRebootRequest_end:
 
 
 appNetworkHandlePingRequest:
+  ld r17, X
+  lds r16, (netInterfaceData+NET_IFACE_OFFS_ADDRESS)
+  cp r16, r17
+  breq appNetworkHandlePingRequest_forMe
+  cpi r17, 0xff
+  breq appNetworkHandlePingRequest_forMe
+  clc
+  rjmp appNetworkHandlePingRequest_end
+appNetworkHandlePingRequest_forMe:
   adiw xh:xl, NETMSG_OFFS_SRCADDR
   ld r17, X
   push r17