From 24cbbe09402fab39b2279e3b92c240771ec9feaa Mon Sep 17 00:00:00 2001
From: anlicheng <244108715@qq.com>
Date: Fri, 6 Mar 2026 11:26:23 +0800
Subject: [PATCH] arp request

---
 apps/sdlan/src/quic/sdlan_quic_channel.erl | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/apps/sdlan/src/quic/sdlan_quic_channel.erl b/apps/sdlan/src/quic/sdlan_quic_channel.erl
index 62d2bc3..a23cec2 100644
--- a/apps/sdlan/src/quic/sdlan_quic_channel.erl
+++ b/apps/sdlan/src/quic/sdlan_quic_channel.erl
@@ -257,19 +257,21 @@ handle_event(internal, {frame, <<?PACKET_ARP_REQUEST, Body/binary>>}, registered
     case sdlan_network:arp_request(NetworkPid, TargetIp) of
         error ->
             logger:debug("[sdlan_channel] network: ~p, arp_request target_ip: ~p, mac not found", [NetworkId, TargetIp]),
-            EmptyResponse = sdlan_pb:encode_msg(#sdl_empty{
-                pkt_id = PktId
+            EmptyArpResponsePkt = sdlan_pb:encode_msg(#sdl_arp_response{
+                pkt_id = PktId,
+                target_ip = TargetIp,
+                target_mac = <<>>
             }),
-            quic_send(Stream, <<?PACKET_ARP_RESPONSE, EmptyResponse/binary>>),
+            quic_send(Stream, <<?PACKET_ARP_RESPONSE, EmptyArpResponsePkt/binary>>),
             keep_state_and_data;
         {ok, Mac} ->
             logger:debug("[sdlan_channel] network: ~p, arp_request target_ip: ~p, mac: ~p", [NetworkId, sdlan_util:int_to_ipv4(TargetIp), sdlan_util:format_mac(Mac)]),
-            PeerInfo = sdlan_pb:encode_msg(#sdl_arp_response{
+            ArpResponsePkt = sdlan_pb:encode_msg(#sdl_arp_response{
                 pkt_id = PktId,
                 target_ip = TargetIp,
                 target_mac = Mac
             }),
-            quic_send(Stream, <<?PACKET_PEER_INFO, PeerInfo/binary>>),
+            quic_send(Stream, <<?PACKET_ARP_RESPONSE, ArpResponsePkt/binary>>),
             keep_state_and_data
     end;