diff --git a/apps/sdlan/src/sdlan_stun.erl b/apps/sdlan/src/sdlan_stun.erl
index cf779a4..0e784e4 100644
--- a/apps/sdlan/src/sdlan_stun.erl
+++ b/apps/sdlan/src/sdlan_stun.erl
@@ -166,7 +166,9 @@ handle_packet(Sock, ClientIp, ClientPort, <<?PACKET_POLICY_REQUEST:8, Body/binar
     maybe
         PolicyRequest = catch sdlan_pb:decode_msg(Body, sdl_policy_request),
         #sdl_stun_request{network_id = NetworkId} ?= PolicyRequest,
+        logger:debug("[sdlan_stun] get policy request, network_id: ~p, 11", [NetworkId]),
         {ok, NetworkPid} ?= sdlan_network:lookup_pid(NetworkId),
+        logger:debug("[sdlan_stun] get policy request, network_id: ~p, 22", [NetworkId]),
         sdlan_network:policy_request(NetworkPid, Sock, {ClientIp, ClientPort}, PolicyRequest)
     end;