diff --git a/apps/sdlan/src/sdlan_network.erl b/apps/sdlan/src/sdlan_network.erl
index ed63a3e..fbe628a 100644
--- a/apps/sdlan/src/sdlan_network.erl
+++ b/apps/sdlan/src/sdlan_network.erl
@@ -400,29 +400,28 @@ handle_cast({policy_request, Sock, {ClientIp, ClientPort}, #sdl_policy_request{c
     maybe
         {ok, #endpoint{client_id = ClientId, session_token = ST}} ?= maps:find(Mac, Endpoints),
 
+        %% todo
         Bin = <<1, 80:16, 2, 9090:16>>,
         RulesBin = iolist_to_binary(lists:map(fun(_Id) -> Bin end, lists:seq(1, 1000))),
         case byte_size(RulesBin) > 1200 of
             true ->
                 %% 分组
                 Groups = chunk_rules(RulesBin, 1200),
-                logger:debug("[sdlan_network] policy_response, groups: ~p", [Groups]),
                 TotalNum = length(Groups),
                 Fragments = lists:zip(lists:seq(0, TotalNum - 1), Groups),
-                lists:foreach(fun({Idx, ChunkRulesBin}) ->
-                    FragmentPolicyResponse = sdlan_pb:encode_msg(#sdl_policy_response {
-                        network_id = NetworkId,
-                        src_identity_id = SrcIdentityId,
-                        dst_identity_id = DstIdentityId,
-                        version = Version,
-                        total_num = TotalNum,
-                        index = Idx,
-                        rules = ChunkRulesBin
-                    }),
-                    FragmentPolicyResponsePkt = <<?PACKET_POLICY_RESPONSE, FragmentPolicyResponse/binary>>,
-                    logger:debug("[sdlan_network] will send policy response: ~p", [FragmentPolicyResponsePkt]),
-                    gen_udp:send(Sock, ClientIp, ClientPort, FragmentPolicyResponsePkt)
-                              end, Fragments);
+                [begin
+                     FragmentPolicyResponse = sdlan_pb:encode_msg(#sdl_policy_response {
+                         network_id = NetworkId,
+                         src_identity_id = SrcIdentityId,
+                         dst_identity_id = DstIdentityId,
+                         version = Version,
+                         total_num = TotalNum,
+                         index = Idx,
+                         rules = ChunkRulesBin
+                     }),
+                     FragmentPolicyResponsePkt = <<?PACKET_POLICY_RESPONSE, FragmentPolicyResponse/binary>>,
+                     gen_udp:send(Sock, ClientIp, ClientPort, FragmentPolicyResponsePkt)
+                 end || {Idx, ChunkRulesBin} <- Fragments];
             false ->
                 %% 小于1200字节不分组
                 PolicyResponse = sdlan_pb:encode_msg(#sdl_policy_response {