diff --git a/API.md b/API.md
index 02f65d1..601c448 100644
--- a/API.md
+++ b/API.md
@@ -45,6 +45,7 @@ return:
             "id": 1,
              "name": "网络1",
              "ipaddr": "192.168.0.1/24",
+             "domain": "punchnet.cn",
              "owner_id": 1234,
              "disabled_clients": ["client_id_xyz", "client_id_xyz1"]
         }
@@ -78,6 +79,31 @@ return:
         code = 2, Client Connection Disable
 ```
 
+### 3.网络校验
+```text
+url: /api/check_network
+method: post
+params:
+    client_id: string
+    code: string,
+    version: int  // 当前客户端版本
+return:
+
+    {"result": 
+        {
+            "network_id": 8,
+            "upgrade_type": 0, // 升级类型，0: 不升级，1: 普通升级，2: 强制升级
+            "upgrade_prompt": "升级提升语"
+            "upgrade_address": "升级提升语"
+        }
+    }
+
+    {"error": {"code": 1, "message": "错误描述"}}
+        code = 1, Token does not exists
+        code = 2, Client Connection Disable
+```
+
+
 ### 4.设置节点的状态
 ```text
 url: /api/set_node_status
diff --git a/apps/sdlan/include/dns_proxy.hrl b/apps/sdlan/include/dns_proxy.hrl
new file mode 100644
index 0000000..7000b7f
--- /dev/null
+++ b/apps/sdlan/include/dns_proxy.hrl
@@ -0,0 +1,24 @@
+%%%-------------------------------------------------------------------
+%%% @author anlicheng
+%%% @copyright (C) 2025, <COMPANY>
+%%% @doc
+%%%
+%%% @end
+%%% Created : 04. 12月 2025 11:41
+%%%-------------------------------------------------------------------
+-author("anlicheng").
+
+-define(PENDING_TAB, ets_dns_pending_queries).
+-define(PENDING_INDEX_TAB, ets_dns_expire_index).
+
+-record(dns_cache, {
+    %% {Qname, QType, QClass}
+    key,
+    answers = [],
+    authority  = [],
+    additional = [],
+    rc :: integer(),
+    flags = #{},
+    % unix time
+    expire_at  :: integer()
+}).
\ No newline at end of file
diff --git a/apps/sdlan/include/sdlan_pb.hrl b/apps/sdlan/include/sdlan_pb.hrl
index d7c149a..2a1f09f 100644
--- a/apps/sdlan/include/sdlan_pb.hrl
+++ b/apps/sdlan/include/sdlan_pb.hrl
@@ -31,7 +31,8 @@
         {network_id = 0         :: non_neg_integer() | undefined, % = 1, optional, 32 bits
          mac = <<>>             :: iodata() | undefined, % = 2, optional
          net_addr = 0           :: non_neg_integer() | undefined, % = 3, optional, 32 bits
-         net_bit_len = 0        :: non_neg_integer() | undefined % = 4, optional, 32 bits
+         net_bit_len = 0        :: non_neg_integer() | undefined, % = 4, optional, 32 bits
+         network_domain = <<>>  :: unicode:chardata() | undefined % = 5, optional
         }).
 -endif.
 
@@ -50,7 +51,9 @@
          client_id = <<>>       :: unicode:chardata() | undefined, % = 3, optional
          dev_addr = undefined   :: sdlan_pb:sdl_dev_addr() | undefined, % = 4, optional
          pub_key = <<>>         :: unicode:chardata() | undefined, % = 5, optional
-         token = <<>>           :: unicode:chardata() | undefined % = 6, optional
+         token = <<>>           :: unicode:chardata() | undefined, % = 6, optional
+         network_code = <<>>    :: unicode:chardata() | undefined, % = 7, optional
+         hostname = <<>>        :: unicode:chardata() | undefined % = 8, optional
         }).
 -endif.
 
diff --git a/apps/sdlan/include/sdlan_tables.hrl b/apps/sdlan/include/sdlan_tables.hrl
index 355670f..7bafce0 100644
--- a/apps/sdlan/include/sdlan_tables.hrl
+++ b/apps/sdlan/include/sdlan_tables.hrl
@@ -13,6 +13,7 @@
     client_id :: binary(),
     mac :: binary(),
     ip :: integer(),
+    host_name :: binary(),
     %% 当前状态
     status = normal :: normal | disabled
 }).
\ No newline at end of file
diff --git a/apps/sdlan/src/dns_proxy/dns_cache.erl b/apps/sdlan/src/dns_proxy/dns_cache.erl
new file mode 100644
index 0000000..da597c0
--- /dev/null
+++ b/apps/sdlan/src/dns_proxy/dns_cache.erl
@@ -0,0 +1,59 @@
+-module(dns_cache).
+-include_lib("dns_proxy.hrl").
+-include_lib("dns_erlang/include/dns.hrl").
+-include_lib("dns_erlang/include/dns_records.hrl").
+-include_lib("dns_erlang/include/dns_terms.hrl").
+
+-export([init/0, lookup/1, insert/2]).
+
+-define(TABLE, dns_cache).
+
+init() ->
+    ets:new(?TABLE, [named_table, set, public, {keypos, 2}, {read_concurrency, true}]).
+
+lookup(#dns_query{name = Qname, type = QType, class = QClass}) ->
+    Key = {Qname, QType, QClass},
+    case ets:lookup(?TABLE, Key) of
+        [Cache = #dns_cache{expire_at = ExpireAt}] ->
+            Now = os:system_time(second),
+            case ExpireAt > Now of
+                true ->
+                    {hit, Cache};
+                false ->
+                    true = ets:delete(?TABLE, Key),
+                    miss
+            end;
+        [] ->
+            miss
+    end.
+
+insert(#dns_query{name = Qname, type = QType, class = QClass},
+    #dns_message{answers = Answers, authority = Authority, additional = Additional, rc = RCode, aa = AA}) ->
+    TTLs = lists:foldl(fun(Term, Acc) ->
+        case Term of
+            #dns_rr{ttl = TTL} ->
+                [TTL|Acc];
+            _ ->
+                Acc
+        end
+                       end, [], Answers ++ Authority ++ Additional),
+    case length(TTLs) > 0 of
+        true ->
+            TTL = lists:min(TTLs),
+            ExpireAt = os:system_time(second) + TTL,
+            lager:debug("min ttl is: ~p, expire_at: ~p", [TTL, ExpireAt]),
+            Key = {Qname, QType, QClass},
+            Cache = #dns_cache{
+                key = Key,
+                answers = Answers,
+                authority  = Authority,
+                additional = Additional,
+                rc = RCode,
+                flags = #{aa => AA},
+                % unix time
+                expire_at = ExpireAt
+            },
+            true = ets:insert(?TABLE, Cache);
+        false ->
+            ok
+    end.
\ No newline at end of file
diff --git a/apps/sdlan/src/dns_proxy/dns_handler.erl b/apps/sdlan/src/dns_proxy/dns_handler.erl
new file mode 100644
index 0000000..d889ee2
--- /dev/null
+++ b/apps/sdlan/src/dns_proxy/dns_handler.erl
@@ -0,0 +1,263 @@
+%%%-------------------------------------------------------------------
+%%% @author anlicheng
+%%% @copyright (C) 2025, <COMPANY>
+%%% @doc
+%%%
+%%% @end
+%%% Created : 03. 12月 2025 23:00
+%%%-------------------------------------------------------------------
+-module(dns_handler).
+-author("anlicheng").
+
+-behaviour(gen_server).
+
+-include_lib("dns_erlang/include/dns.hrl").
+-include_lib("pkt/include/pkt.hrl").
+-include("dns_proxy.hrl").
+
+%% API
+-export([start_link/0]).
+
+%% gen_server callbacks
+-export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, code_change/3]).
+-export([handle_ip_packet/5]).
+
+-define(SERVER, ?MODULE).
+-define(RESOLVER_POOL, dns_resolver_pool).
+
+%% 协议部分
+-define(TCP_PROTOCOL, 6).
+-define(UDP_PROTOCOL, 17).
+
+-record(state, {}).
+
+%%%===================================================================
+%%% API
+%%%===================================================================
+
+start_link() ->
+    gen_server:start_link(?MODULE, [], []).
+
+handle_ip_packet(Pid, Sock, SrcIp, SrcPort, Packet) when is_pid(Pid) ->
+    gen_server:cast(Pid, {handle_ip_packet, Sock, SrcIp, SrcPort, Packet}).
+
+%%%===================================================================
+%%% gen_server callbacks
+%%%===================================================================
+
+%% @private
+%% @doc Initializes the server
+-spec(init(Args :: term()) ->
+    {ok, State :: #state{}} | {ok, State :: #state{}, timeout() | hibernate} |
+    {stop, Reason :: term()} | ignore).
+init([]) ->
+    {ok, #state{}}.
+
+%% @private
+%% @doc Handling call messages
+-spec(handle_call(Request :: term(), From :: {pid(), Tag :: term()},
+    State :: #state{}) ->
+    {reply, Reply :: term(), NewState :: #state{}} |
+    {reply, Reply :: term(), NewState :: #state{}, timeout() | hibernate} |
+    {noreply, NewState :: #state{}} |
+    {noreply, NewState :: #state{}, timeout() | hibernate} |
+    {stop, Reason :: term(), Reply :: term(), NewState :: #state{}} |
+    {stop, Reason :: term(), NewState :: #state{}}).
+handle_call(_Request, _From, State = #state{}) ->
+    {reply, ok, State}.
+
+%% @private
+%% @doc Handling cast messages
+-spec(handle_cast(Request :: term(), State :: #state{}) ->
+    {noreply, NewState :: #state{}} |
+    {noreply, NewState :: #state{}, timeout() | hibernate} |
+    {stop, Reason :: term(), NewState :: #state{}}).
+handle_cast({handle_ip_packet, Sock, SrcIp, SrcPort, IpPacket}, State) ->
+    {#ipv4{saddr = ReqSAddr, daddr = ReqDAddr, p = Protocol}, ReqIpPayload} = pkt:ipv4(IpPacket),
+    case Protocol =:= ?UDP_PROTOCOL of
+        true ->
+            {#udp{sport = ReqSPort, dport = ReqDPort}, UdpPayload} = pkt:udp(ReqIpPayload),
+            case resolver(UdpPayload) of
+                {ok, DnsResp} ->
+                    RespIpPacket = build_ip_packet(ReqDAddr, ReqSAddr, ReqDPort, ReqSPort, DnsResp),
+                    gen_udp:send(Sock, SrcIp, SrcPort, RespIpPacket);
+                {error, Reason} ->
+                    lager:notice("[dns_handler] resolver get error: ~p", [Reason])
+            end;
+        false ->
+            lager:notice("[dns_handler] resolver invalid protocol: ~p", [Protocol])
+    end,
+    {stop, normal, State}.
+
+%% @private
+%% @doc Handling all non call/cast messages
+-spec(handle_info(Info :: timeout() | term(), State :: #state{}) ->
+    {noreply, NewState :: #state{}} |
+    {noreply, NewState :: #state{}, timeout() | hibernate} |
+    {stop, Reason :: term(), NewState :: #state{}}).
+handle_info(_Info, State) ->
+    {noreply, State}.
+
+%% @private
+%% @doc This function is called by a gen_server when it is about to
+%% terminate. It should be the opposite of Module:init/1 and do any
+%% necessary cleaning up. When it returns, the gen_server terminates
+%% with Reason. The return value is ignored.
+-spec(terminate(Reason :: (normal | shutdown | {shutdown, term()} | term()),
+    State :: #state{}) -> term()).
+terminate(_Reason, _State = #state{}) ->
+    ok.
+
+%% @private
+%% @doc Convert process state when code is changed
+-spec(code_change(OldVsn :: term() | {down, term()}, State :: #state{},
+    Extra :: term()) ->
+    {ok, NewState :: #state{}} | {error, Reason :: term()}).
+code_change(_OldVsn, State = #state{}, _Extra) ->
+    {ok, State}.
+
+%%%===================================================================
+%%% Internal functions
+%%%===================================================================
+
+-spec resolver(Packet :: binary()) -> {ok, Resp :: binary()} | {error, Reason :: any()}.
+resolver(Packet) when is_binary(Packet) ->
+    resolver0(Packet, dns:decode_message(Packet)).
+resolver0(Packet, QueryMsg = #dns_message{qc = 1, questions = [Question = #dns_query{name = QName, type = QType, class = QClass}|_]}) ->
+    %% 查找是否是内置的域名
+    case sdlan_hostname_regedit:lookup(QName) of
+        {ok, Ip} ->
+            Answer = #dns_rr {
+                name = QName,
+                type = QType,
+                class = QClass,
+                ttl = 300,
+                data = #dns_rrdata_a {
+                    ip = Ip
+                }
+            },
+            RespMsg = QueryMsg#dns_message{
+                qr = true,
+                ra = true,
+                anc = 1,
+                auc = 0,
+                adc = 0,
+                answers = [Answer],
+                authority = [],
+                additional = []
+            },
+            lager:debug("[dns_handler] punchnet inbuilt qnanme: ~p, ip: ~p", [QName, Ip]),
+            {ok, dns:encode_message(RespMsg)};
+        error ->
+            %% 是否命中内部的域名后缀
+            EmptyDnsResp = dns:encode_message(build_nxdomain_response(QueryMsg)),
+            case sdlan_domain_regedit:maybe_domain(QName) of
+                true ->
+                    lager:debug("[dns_handler] punchnet inbuilt qnanme: ~p, nxdomain", [QName]),
+                    {ok, EmptyDnsResp};
+                false ->
+                    case dns_cache:lookup(Question) of
+                        {hit, Cache} ->
+                            lager:debug("[dns_handler] qname: ~p, hit cache answers: ~p", [QName, Cache#dns_cache.answers]),
+                            RespMsg = build_response(QueryMsg, Cache),
+                            {ok, dns:encode_message(RespMsg)};
+                        miss ->
+                            Ref = make_ref(),
+                            forward_to_upstream(Ref, Packet, QueryMsg),
+                            lager:debug("[dns_handler] cache is miss, forward_to_upstream"),
+                            receive
+                                {dns_resolver_reply, Ref, Resp} ->
+                                    case dns:decode_message(Resp) of
+                                        RespMsg = #dns_message{answers = Answers} ->
+                                            lager:debug("[dns_handler] get a response answers: ~p", [Answers]),
+                                            dns_cache:insert(Question, RespMsg),
+                                            {ok, Resp};
+                                        Error ->
+                                            lager:debug("[dns_handler] parse reply get error: ~p", [Error]),
+                                            {ok, EmptyDnsResp}
+                                    end
+                            after 5000 ->
+                                lager:debug("[dns_handler] forward_to_upstream timeout"),
+                                {ok, EmptyDnsResp}
+                            end
+                    end
+            end
+    end;
+resolver0(_, Error) ->
+    lager:warning("[dns_handler] decode dns_query get error: ~p", [Error]),
+    {error, Error}.
+
+-spec forward_to_upstream(Ref :: reference(), Request :: binary(), QueryMsg :: #dns_message{}) -> no_return().
+forward_to_upstream(Ref, Request, QueryMsg) ->
+    ReceiverPid = self(),
+    poolboy:transaction(?RESOLVER_POOL, fun(Pid) -> dns_resolver:forward(Pid, ReceiverPid, Ref, Request, QueryMsg) end).
+
+-spec build_response(QueryMsg :: #dns_message{}, Dns_cache :: #dns_cache{}) -> RespMsg :: #dns_message{}.
+build_response(QueryMsg, #dns_cache{expire_at = ExpireAt, answers = Answers, authority = Authority, additional = Additional, rc = RCode, flags = #{aa := AA}}) ->
+    Now = os:system_time(second),
+    RemainingTTL = ExpireAt - Now,
+
+    Answers2 = [adjust_ttl(RR, RemainingTTL) || RR <- Answers],
+    Authority2 = [adjust_ttl(RR, RemainingTTL) || RR <- Authority],
+    Additional2 = [adjust_ttl(RR, RemainingTTL) || RR <- Additional],
+
+    QueryMsg#dns_message{
+        qr = true,
+        ra = true,
+        aa = AA,
+        rc = RCode,
+        anc = length(Answers2),
+        auc = length(Authority2),
+        adc = length(Additional2),
+        answers = Answers2,
+        authority = Authority2,
+        additional = Additional2
+    }.
+
+-spec adjust_ttl(RR :: any(), RemainingTTL :: integer()) -> any().
+adjust_ttl(RR = #dns_rr{}, RemainingTTL) ->
+    RR#dns_rr{ttl = max(0, RemainingTTL)};
+adjust_ttl(RR, _RemainingTTL) ->
+    RR.
+
+-spec build_nxdomain_response(QueryMsg :: #dns_message{}) -> EmptyResp :: #dns_message{}.
+build_nxdomain_response(QueryMsg) ->
+    QueryMsg#dns_message{
+        qr = true,
+        aa = true,
+        ra = true,
+        rc = ?DNS_RCODE_NXDOMAIN,
+        anc = 0,
+        auc = 0,
+        adc = 0,
+        answers = [],
+        authority = [],
+        additional = []
+    }.
+
+-spec build_ip_packet(SAddr :: inet:ip4_address(), DAddr :: inet:ip4_address(), SPort :: integer(), DPort :: integer(), Payload :: binary()) -> IpPacket :: binary().
+build_ip_packet(SAddr, DAddr, SPort, DPort, UdpPayload) when is_integer(SPort), is_integer(DPort), is_binary(UdpPayload) ->
+    ULen = 8 + byte_size(UdpPayload),
+    RespUdpHeader = pkt:udp(#udp{
+        sport = SPort,
+        dport = DPort,
+        ulen = ULen,
+        sum = dns_utils:udp_checksum(SAddr, DAddr, SPort, DPort, UdpPayload)
+    }),
+    IpPayload = <<RespUdpHeader/binary, UdpPayload/binary>>,
+
+    IpPacket0 = #ipv4{
+        len = 20 + ULen,
+        ttl = 64,
+        off = 0,
+        mf = 0,
+        sum = 0,
+        p = ?UDP_PROTOCOL,
+        saddr = SAddr,
+        daddr = DAddr,
+        opt = <<>>
+    },
+    IpCheckSum = dns_utils:ip_checksum(IpPacket0),
+    IpHeader = pkt:ipv4(IpPacket0#ipv4{sum = IpCheckSum}),
+
+    <<IpHeader/binary, IpPayload/binary>>.
\ No newline at end of file
diff --git a/apps/sdlan/src/dns_proxy/dns_handler_sup.erl b/apps/sdlan/src/dns_proxy/dns_handler_sup.erl
new file mode 100644
index 0000000..009395d
--- /dev/null
+++ b/apps/sdlan/src/dns_proxy/dns_handler_sup.erl
@@ -0,0 +1,66 @@
+%%%-------------------------------------------------------------------
+%%% @author anlicheng
+%%% @copyright (C) 2025, <COMPANY>
+%%% @doc
+%%%
+%%% @end
+%%% Created : 03. 12月 2025 17:29
+%%%-------------------------------------------------------------------
+-module(dns_handler_sup).
+-author("anlicheng").
+
+-behaviour(supervisor).
+
+%% API
+-export([start_link/0]).
+
+%% Supervisor callbacks
+-export([init/1]).
+-export([start_handler/0]).
+
+-define(SERVER, ?MODULE).
+
+%%%===================================================================
+%%% API functions
+%%%===================================================================
+
+%% @doc Starts the supervisor
+-spec(start_link() -> {ok, Pid :: pid()} | ignore | {error, Reason :: term()}).
+start_link() ->
+    supervisor:start_link({local, ?SERVER}, ?MODULE, []).
+
+%%%===================================================================
+%%% Supervisor callbacks
+%%%===================================================================
+
+%% @private
+%% @doc Whenever a supervisor is started using supervisor:start_link/[2,3],
+%% this function is called by the new process to find out about
+%% restart strategy, maximum restart frequency and child
+%% specifications.
+init([]) ->
+    SupFlags = #{strategy => simple_one_for_one, intensity => 0, period => 1},
+    Spec = #{
+        id => dns_handler,
+        start => {'dns_handler', start_link, []},
+        restart => temporary,
+        shutdown => 2000,
+        type => worker,
+        modules => ['dns_handler']
+    },
+
+    {ok, {SupFlags, [Spec]}}.
+
+%%%===================================================================
+%%% Internal functions
+%%%===================================================================
+
+start_handler() ->
+    case supervisor:start_child(?MODULE, []) of
+        {ok, Pid} ->
+            {ok, Pid};
+        {error, {already_started, Pid}} ->
+            {ok, Pid};
+        StartError ->
+            StartError
+    end.
\ No newline at end of file
diff --git a/apps/sdlan/src/dns_proxy/dns_pending_wheel.erl b/apps/sdlan/src/dns_proxy/dns_pending_wheel.erl
new file mode 100644
index 0000000..ad72903
--- /dev/null
+++ b/apps/sdlan/src/dns_proxy/dns_pending_wheel.erl
@@ -0,0 +1,64 @@
+-module(dns_pending_wheel).
+
+-export([start/0, insert/2, lookup/1, delete/1]).
+
+-define(TTL, 5).
+-define(TICK_MS, 1000).
+-define(WHEEL_SIZE, (?TTL + 1)).
+
+%%% =====================================================
+%%% Public API
+%%% =====================================================
+
+start() ->
+    ets:new(dns_pending_data, [ordered_set, public, named_table, {read_concurrency, true}, {write_concurrency, true}]),
+    ets:new(dns_pending_wheel, [bag, public, named_table, {read_concurrency, true}, {write_concurrency, true}]),
+    start_scanner().
+
+-spec insert(Key :: any(), Val :: any()) -> ok.
+insert(Key, Val) ->
+    Tick = now_tick(),
+    Slot = Tick rem ?WHEEL_SIZE,
+    ets:insert(dns_pending_data, {Key, {Val, Tick}}),
+    ets:insert(dns_pending_wheel, {Slot, {Key, Tick}}),
+    ok.
+
+-spec lookup(Key :: any()) -> [term()].
+lookup(Key) ->
+    ets:lookup(dns_pending_data, Key).
+
+-spec delete(Key :: any()) -> ok.
+delete(Key) ->
+    ets:delete(dns_pending_data, Key),
+    ok.
+
+%%% =====================================================
+%%% Internal
+%%% =====================================================
+
+start_scanner() ->
+    {ok, spawn_link(fun tick_loop/0)}.
+
+%% 当前插入数据是在Tick, 而清理是从 Tick + 1 开始的，没有问题
+tick_loop() ->
+    Tick = now_tick(),
+    CleanSlot = (Tick + 1) rem ?WHEEL_SIZE,
+    spawn(fun() -> clean_slot(CleanSlot) end),
+    timer:sleep(?TICK_MS),
+    tick_loop().
+
+clean_slot(Slot) ->
+    Items = ets:lookup(dns_pending_wheel, Slot),
+    true = ets:delete(dns_pending_wheel, Slot),
+    lists:foreach(fun({_, {Key, InsertTick}}) ->
+        case ets:lookup(dns_pending_data, Key) of
+            [{Key, {_Val, InsertTick}}] ->
+                ets:delete(dns_pending_data, Key);
+            _ ->
+                ok
+        end
+                  end, Items).
+
+-spec now_tick() -> integer().
+now_tick() ->
+    erlang:system_time(second).
\ No newline at end of file
diff --git a/apps/sdlan/src/dns_proxy/dns_proxy_sup.erl b/apps/sdlan/src/dns_proxy/dns_proxy_sup.erl
new file mode 100644
index 0000000..9882fb7
--- /dev/null
+++ b/apps/sdlan/src/dns_proxy/dns_proxy_sup.erl
@@ -0,0 +1,50 @@
+%%%-------------------------------------------------------------------
+%% @doc dns_proxy top level supervisor.
+%% @end
+%%%-------------------------------------------------------------------
+
+-module(dns_proxy_sup).
+
+-behaviour(supervisor).
+
+-export([start_link/0]).
+-export([init/1]).
+
+-define(SERVER, ?MODULE).
+
+start_link() ->
+    supervisor:start_link({local, ?SERVER}, ?MODULE, []).
+
+%% sup_flags() = #{strategy => strategy(),         % optional
+%%                 intensity => non_neg_integer(), % optional
+%%                 period => pos_integer()}        % optional
+%% child_spec() = #{id => child_id(),       % mandatory
+%%                  start => mfargs(),      % mandatory
+%%                  restart => restart(),   % optional
+%%                  shutdown => shutdown(), % optional
+%%                  type => worker(),       % optional
+%%                  modules => modules()}   % optional
+init([]) ->
+    SupFlags = #{strategy => one_for_one, intensity => 1000, period => 3600},
+
+    Port = 15353,
+    Specs = [
+        #{
+            id => dns_handler_sup,
+            start => {dns_handler_sup, start_link, []},
+            restart => permanent,
+            shutdown => 2000,
+            type => supervisor,
+            modules => ['dns_handler_sup']
+        },
+        #{
+            id => dns_server,
+            start => {dns_server, start_link, [Port]},
+            restart => permanent,
+            shutdown => 2000,
+            type => worker,
+            modules => ['dns_server']
+        }
+    ],
+
+    {ok, {SupFlags, Specs}}.
\ No newline at end of file
diff --git a/apps/sdlan/src/dns_proxy/dns_resolver.erl b/apps/sdlan/src/dns_proxy/dns_resolver.erl
new file mode 100644
index 0000000..7058800
--- /dev/null
+++ b/apps/sdlan/src/dns_proxy/dns_resolver.erl
@@ -0,0 +1,141 @@
+%%%-------------------------------------------------------------------
+%%% @author anlicheng
+%%% @copyright (C) 2025, <COMPANY>
+%%% @doc
+%%%
+%%% @end
+%%% Created : 03. 12月 2025 18:26
+%%%-------------------------------------------------------------------
+-module(dns_resolver).
+-author("anlicheng").
+-include_lib("dns_erlang/include/dns.hrl").
+
+-behaviour(gen_server).
+
+%% API
+-export([start_link/1]).
+
+%% gen_server callbacks
+-export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, code_change/3]).
+
+-export([forward/5]).
+
+-define(SERVER, ?MODULE).
+
+-record(state, {
+    socket,
+    idx  :: integer(),
+    dns_servers = []
+}).
+
+%%%===================================================================
+%%% API
+%%%===================================================================
+
+forward(Pid, ReceiverPid, Ref, Request, QueryMsg) ->
+    gen_server:cast(Pid, {forward, ReceiverPid, Ref, Request, QueryMsg}).
+
+%% @doc Spawns the server and registers the local name (unique)
+-spec(start_link(Args :: list()) ->
+    {ok, Pid :: pid()} | ignore | {error, Reason :: term()}).
+start_link(Args) when is_list(Args) ->
+    gen_server:start_link(?MODULE, [], []).
+
+%%%===================================================================
+%%% gen_server callbacks
+%%%===================================================================
+
+%% @private
+%% @doc Initializes the server
+-spec(init(Args :: term()) ->
+    {ok, State :: #state{}} | {ok, State :: #state{}, timeout() | hibernate} |
+    {stop, Reason :: term()} | ignore).
+init([]) ->
+    {ok, DnsServers} = application:get_env(sdlan, public_dns_servers),
+    {ok, Sock} = gen_udp:open(0, [binary, {active, true}]),
+    Idx = erlang:unique_integer([monotonic, positive]),
+    {ok, #state{socket = Sock, idx = Idx, dns_servers = DnsServers}}.
+
+%% @private
+%% @doc Handling call messages
+-spec(handle_call(Request :: term(), From :: {pid(), Tag :: term()},
+    State :: #state{}) ->
+    {reply, Reply :: term(), NewState :: #state{}} |
+    {reply, Reply :: term(), NewState :: #state{}, timeout() | hibernate} |
+    {noreply, NewState :: #state{}} |
+    {noreply, NewState :: #state{}, timeout() | hibernate} |
+    {stop, Reason :: term(), Reply :: term(), NewState :: #state{}} |
+    {stop, Reason :: term(), NewState :: #state{}}).
+handle_call(_Request, _From, State = #state{}) ->
+    {reply, ok, State}.
+
+%% @private
+%% @doc Handling cast messages
+-spec(handle_cast(Request :: term(), State :: #state{}) ->
+    {noreply, NewState :: #state{}} |
+    {noreply, NewState :: #state{}, timeout() | hibernate} |
+    {stop, Reason :: term(), NewState :: #state{}}).
+handle_cast({forward, ReceiverPid, Ref, Request, #dns_message{id = TxId, questions = [#dns_query{name = QName, type = QType, class = QClass}|_]}},
+    State = #state{socket = Socket, idx = Idx, dns_servers = DnsServers}) ->
+
+    lists:foreach(fun({DnsIp, DnsPort}) ->
+        ok = gen_udp:send(Socket, DnsIp, DnsPort, Request),
+        Key = {Idx, TxId, DnsIp, DnsPort, QName, QType, QClass},
+        lager:debug("[dns_resolver] key: ~p, send to: ~p, packet: ~p", [Key, {DnsIp, DnsPort}, Request]),
+        dns_pending_wheel:insert(Key, {Ref, ReceiverPid})
+                  end, DnsServers),
+
+    {noreply, State}.
+
+%% @private
+%% @doc Handling all non call/cast messages
+-spec(handle_info(Info :: timeout() | term(), State :: #state{}) ->
+    {noreply, NewState :: #state{}} |
+    {noreply, NewState :: #state{}, timeout() | hibernate} |
+    {stop, Reason :: term(), NewState :: #state{}}).
+handle_info({udp, Socket, TargetIp, TargetPort, Resp}, State = #state{socket = Socket, idx = Idx}) ->
+    try dns:decode_message(Resp) of
+        #dns_message{id = TxId, questions = [#dns_query{name = QName, type = QType, class = QClass}|_]} ->
+            Key = {Idx, TxId, TargetIp, TargetPort, QName, QType, QClass},
+            Records = dns_pending_wheel:lookup(Key),
+            dns_pending_wheel:delete(Key),
+            resolver_reply(Records, Resp);
+        _ ->
+            ok
+    catch error:_ ->
+        ok
+    end,
+    {noreply, State}.
+
+%% @private
+%% @doc This function is called by a gen_server when it is about to
+%% terminate. It should be the opposite of Module:init/1 and do any
+%% necessary cleaning up. When it returns, the gen_server terminates
+%% with Reason. The return value is ignored.
+-spec(terminate(Reason :: (normal | shutdown | {shutdown, term()} | term()),
+    State :: #state{}) -> term()).
+terminate(_Reason, _State = #state{}) ->
+    ok.
+
+%% @private
+%% @doc Convert process state when code is changed
+-spec(code_change(OldVsn :: term() | {down, term()}, State :: #state{},
+    Extra :: term()) ->
+    {ok, NewState :: #state{}} | {error, Reason :: term()}).
+code_change(_OldVsn, State = #state{}, _Extra) ->
+    {ok, State}.
+
+%%%===================================================================
+%%% Internal functions
+%%%===================================================================
+
+-spec resolver_reply(list(), Resp :: binary()) -> no_return().
+resolver_reply(Records, Resp) when is_binary(Resp) ->
+    lists:foreach(fun({_, {Ref, ReceiverPid}}) ->
+        case is_process_alive(ReceiverPid) of
+            true ->
+                ReceiverPid ! {dns_resolver_reply, Ref, Resp};
+            false ->
+                ok
+        end
+                  end, Records).
\ No newline at end of file
diff --git a/apps/sdlan/src/dns_proxy/dns_server.erl b/apps/sdlan/src/dns_proxy/dns_server.erl
new file mode 100644
index 0000000..d624a77
--- /dev/null
+++ b/apps/sdlan/src/dns_proxy/dns_server.erl
@@ -0,0 +1,24 @@
+-module(dns_server).
+-export([start_link/1, init/1]).
+
+start_link(Port) when is_integer(Port) ->
+    {ok, spawn_link(?MODULE, init, [Port])}.
+
+init(Port) ->
+    dns_cache:init(),
+    {ok, Sock} = gen_udp:open(Port, [binary, {active, true}]),
+    lager:debug("[dns_server] DNS Forwarder started on UDP port ~p~n", [Port]),
+    loop(Sock).
+
+loop(Sock) ->
+    receive
+        {udp, Sock, Ip, Port, Packet} ->
+            lager:debug("[dns_server] ip: ~p, get a packet: ~p", [{Ip, Port}, Packet]),
+            case dns_handler_sup:start_handler() of
+                {ok, HandlerPid} ->
+                    dns_handler:handle_ip_packet(HandlerPid, Sock, Ip, Port, Packet);
+                Error ->
+                    lager:debug("[dns_server] start handler get error: ~p", [Error])
+            end,
+            loop(Sock)
+    end.
\ No newline at end of file
diff --git a/apps/sdlan/src/dns_proxy/dns_utils.erl b/apps/sdlan/src/dns_proxy/dns_utils.erl
new file mode 100644
index 0000000..2d07524
--- /dev/null
+++ b/apps/sdlan/src/dns_proxy/dns_utils.erl
@@ -0,0 +1,131 @@
+%%%-------------------------------------------------------------------
+%%% @author anlicheng
+%%% @copyright (C) 2025, <COMPANY>
+%%% @doc
+%%%
+%%% @end
+%%% Created : 05. 12月 2025 18:06
+%%%-------------------------------------------------------------------
+-module(dns_utils).
+-author("anlicheng").
+
+-include_lib("pkt/include/pkt.hrl").
+
+%% API
+-export([ends_with/2, parse_address/1, checksum/1, udp_checksum/5, ip_checksum/1]).
+-export([test/0]).
+
+-spec ends_with(Bin :: binary(), Suffix :: binary()) -> boolean().
+ends_with(Bin, Suffix) when is_binary(Bin), is_binary(Suffix) ->
+    case binary:match(Bin, Suffix) of
+        {Pos, Len} ->
+            Pos + Len =:= byte_size(Bin);
+        nomatch ->
+            false
+    end.
+
+-spec parse_address(Ip :: any()) -> {ok, IpAddress :: inet:ip4_address()} | {error, Reason :: any()}.
+parse_address(Ip = {Ip0, Ip1, Ip2, Ip3}) when is_integer(Ip0), is_integer(Ip1), is_integer(Ip2), is_integer(Ip3) ->
+    {ok, Ip};
+parse_address(Bin) when is_binary(Bin) ->
+    inet:parse_address(binary_to_list(Bin)).
+
+
+%%--------------------------------------------------------------------
+%% @doc
+%%   Calculate 16-bit one's-complement checksum.
+%%
+%%   Input:
+%%     Bin :: binary()
+%%
+%%   Output:
+%%     Checksum :: 0..16#FFFF
+%%
+%%   Usage:
+%%     Checksum = checksum(Bin).
+%%
+%%   Notes:
+%%     - Bin is treated as big-endian 16-bit words
+%%     - If Bin length is odd, a zero byte is padded
+%%--------------------------------------------------------------------
+-spec checksum(binary()) -> non_neg_integer().
+checksum(Bin) when is_binary(Bin) ->
+    Sum = checksum_sum(Bin, 0),
+    %% fold carry bits
+    Folded = fold16(Sum),
+    %% one's complement
+    (bnot Folded) band 16#FFFF.
+checksum_sum(<<>>, Acc) ->
+    Acc;
+checksum_sum(<<Word:16/big, Rest/binary>>, Acc) ->
+    checksum_sum(Rest, Acc + Word);
+checksum_sum(<<Byte:8>>, Acc) ->
+    %% odd length: pad low byte with zero
+    checksum_sum(<<>>, Acc + (Byte bsl 8)).
+
+fold16(S) when S > 16#FFFF ->
+    fold16((S band 16#FFFF) + (S bsr 16));
+fold16(S) ->
+    S.
+
+-spec udp_checksum(SAddr :: inet:ip4_address(), DAddr :: inet:ip4_address(), SPort :: integer(), DPort :: integer(), UDPPayload :: binary()) -> non_neg_integer().
+udp_checksum({SA1, SA2, SA3, SA4}, {DA1, DA2, DA3, DA4}, SPort, DPort, UDPPayload) when is_integer(SPort), is_integer(DPort), is_binary(UDPPayload) ->
+    ULen = 8 + byte_size(UDPPayload),
+    PseudoHeader = <<SA1, SA2, SA3, SA4,
+        DA1, DA2, DA3, DA4,
+        0:8, 17:8,
+        ULen:16>>,
+    UDPHeader = <<SPort:16, DPort:16, ULen:16, 0:16>>,
+    CheckSum = checksum(<<PseudoHeader/binary, UDPHeader/binary, UDPPayload/binary>>),
+    case CheckSum of
+        0 ->
+            16#FFFF;
+        _ ->
+            CheckSum
+    end.
+
+-spec ip_checksum(Ipv4 :: #ipv4{}) -> non_neg_integer().
+ip_checksum(#ipv4{hl = HL, tos = ToS, len = Len,
+    id = Id, df = DF, mf = MF,
+    off = Off, ttl = TTL, p = P,
+    saddr = {SA1, SA2, SA3, SA4},
+    daddr = {DA1, DA2, DA3, DA4},
+    opt = Opt}) ->
+
+    IPBinForChecksum =
+        <<4:4, HL:4,            %% Version=4 + IHL
+            ToS:8,                %% Type of Service
+            Len:16/big,           %% Total Length
+            Id:16/big,            %% Identification
+            DF:1, MF:1, Off:14,   %% Flags + Fragment offset
+            TTL:8,                 %% TTL
+            P:8,                   %% Protocol
+            0:16,                  %% checksum field set to 0 for calculation
+            SA1:8, SA2:8, SA3:8, SA4:8,  %% Source IP
+            DA1:8, DA2:8, DA3:8, DA4:8,  %% Dest IP
+            Opt/binary>>,                 %% Options (可选)
+    CheckSum = checksum(IPBinForChecksum),
+    case CheckSum of
+        0 ->
+            16#FFFF;
+        _ ->
+            CheckSum
+    end.
+
+test() ->
+    %Bin = <<69,0,0,77,48,179,0,0,64,17,28,168,100,123,0,2,100,100,100,100,252,230,0,53,0,57,6,92,152,24,1,0,0,1,0,0,0,0,0,0,2,100,98,7,95,100,110,115,45,115,100,4,95,117,100,112,8,112,117,110,99,104,110,101,116,2,116,115,3,110,101,116,0,0,12,0,1>>,
+    Bin = <<69,0,0,93,0,0,0,0,64,6,77,86,100,100,100,100,100,123,0,2,0,53,196,102,0,73,39,7,215,192,129,128,0,1,0,1,0,0,0,0,2,108,98,7,95,100,110,115,45,115,100,4,95,117,100,112,8,112,117,110,99,104,110,101,116,2,116,115,3,110,101,116,0,0,12,0,1,192,12,0,12,0,1,0,0,1,44,0,4,192,168,1,101>>,
+
+    {IPPacket = #ipv4{
+        saddr = SAddr,
+        daddr = DAddr,
+        sum = IpSum
+    }, UdpPacket} = pkt:ipv4(Bin),
+
+    {UDP = #udp{sport = SPort, dport = DPort, sum = CheckSum}, UDPPayload} = pkt:udp(UdpPacket),
+
+    X = udp_checksum(SAddr, DAddr, SPort, DPort, UDPPayload),
+
+    lager:debug("ip_sum: ~p, =: ~p, udp: ~p, checkSum: ~p, =: ~p", [IpSum, ip_checksum(IPPacket), UDP, CheckSum, X]),
+
+    dns:decode_message(UDPPayload).
\ No newline at end of file
diff --git a/apps/sdlan/src/http_handler/node_handler.erl b/apps/sdlan/src/http_handler/node_handler.erl
index 9a68acb..e85c13f 100644
--- a/apps/sdlan/src/http_handler/node_handler.erl
+++ b/apps/sdlan/src/http_handler/node_handler.erl
@@ -45,8 +45,8 @@ handle_request("POST", "/node/move", _, #{<<"client_id">> := ClientId, <<"from_n
     case {sdlan_network:get_pid(FromNetworkId), sdlan_network:get_pid(ToNetworkId)} of
         {FromPid, ToPid} when is_pid(FromPid), is_pid(ToPid) ->
             case sdlan_network:dropout_client(FromPid, ClientId) of
-                {ok, ChannelPid} ->
-                    Ref = sdlan_channel:move_network(ChannelPid, self(), ToPid),
+                {ok, ChannelPid, HostName} ->
+                    Ref = sdlan_channel:move_network(ChannelPid, self(), ToPid, HostName),
                     receive
                         {command_reply, Ref, {error, Reason}} ->
                             lager:warning("[node_handler] client_id: ~p, move network from: ~p, to: ~p, get error: ~p", [ClientId, FromPid, ToPid, Reason]),
diff --git a/apps/sdlan/src/mnesia/client_model.erl b/apps/sdlan/src/mnesia/client_model.erl
index 26738cf..306d3d4 100644
--- a/apps/sdlan/src/mnesia/client_model.erl
+++ b/apps/sdlan/src/mnesia/client_model.erl
@@ -13,7 +13,7 @@
 
 %% API
 -export([create_table/1, get_table_name/1]).
--export([get_clients/1, delete_clients/1, delete_client/2, disable_client/2, alloc_ip/5]).
+-export([get_clients/1, get_client/2, delete_clients/1, delete_client/2, disable_client/2, alloc_ip/6]).
 -export([debug/1]).
 
 create_table(Tab) when is_atom(Tab) ->
@@ -28,6 +28,16 @@ create_table(Tab) when is_atom(Tab) ->
 get_table_name(NetworkId) when is_integer(NetworkId) ->
     list_to_atom("client_" ++ integer_to_list(NetworkId)).
 
+-spec get_client(NetworkId :: integer(), ClientId :: binary()) -> error | {ok, Client :: #client{}} .
+get_client(NetworkId, ClientId) when is_integer(NetworkId), is_binary(ClientId) ->
+    Tab = get_table_name(NetworkId),
+    case mnesia:dirty_read(Tab, ClientId) of
+        [] ->
+            error;
+        [Client|_] ->
+            {ok, Client}
+    end.
+
 -spec get_clients(NetworkId :: integer()) -> [Client :: #client{}].
 get_clients(NetworkId) when is_integer(NetworkId) ->
     Tab = get_table_name(NetworkId),
@@ -48,12 +58,23 @@ delete_clients(NetworkId) when is_integer(NetworkId) ->
             {error, Reason}
     end.
 
--spec delete_client(NetworkId :: integer(), ClientId :: binary()) -> ok | {error, Reason :: any()}.
+-spec delete_client(NetworkId :: integer(), ClientId :: binary()) -> {ok, Client :: #client{}} | {error, Reason :: any()}.
 delete_client(NetworkId, ClientId) when is_integer(NetworkId), is_binary(ClientId) ->
     Tab = get_table_name(NetworkId),
-    case mnesia:transaction(fun() -> mnesia:delete(Tab, ClientId, write) end) of
-        {'atomic', ok} ->
-            ok;
+
+    Fun = fun() ->
+        case mnesia:read(Tab, ClientId, write) of
+            [] ->
+                mnesia:abort(not_found);
+            [Record] ->
+                mnesia:delete(Tab, ClientId, write),
+                {ok, Record}
+        end
+          end,
+
+    case mnesia:transaction(Fun) of
+        {'atomic', {ok, Client}} ->
+            {ok, Client};
         {'aborted', Reason} ->
             {error, Reason}
     end.
@@ -78,16 +99,16 @@ disable_client(NetworkId, ClientId) when is_integer(NetworkId), is_binary(Client
     end.
 
 %% 分配ip地址的时候，以mac地址为唯一基准
--spec alloc_ip(NetworkId :: integer(), Ips :: list(), ClientId :: binary(), Mac :: binary(), NetAddr0 :: integer()) ->
+-spec alloc_ip(NetworkId :: integer(), Ips :: list(), ClientId :: binary(), Mac :: binary(), NetAddr0 :: integer(), HostName :: binary()) ->
     {ok, Ip :: integer()} | {error, Reason :: any()}.
-alloc_ip(NetworkId, Ips, ClientId, Mac, NetAddr0) when is_binary(ClientId), is_integer(NetAddr0), is_binary(Mac) ->
-    case mnesia:transaction(fun() -> alloc_ip0(NetworkId, Ips, ClientId, Mac, NetAddr0) end) of
+alloc_ip(NetworkId, Ips, ClientId, Mac, NetAddr0, HostName) when is_binary(ClientId), is_integer(NetAddr0), is_binary(Mac), is_binary(HostName) ->
+    case mnesia:transaction(fun() -> alloc_ip0(NetworkId, Ips, ClientId, Mac, NetAddr0, HostName) end) of
         {'atomic', Res} ->
             {ok, Res};
         {'aborted', Reason} ->
             {error, Reason}
     end.
-alloc_ip0(NetworkId, Ips, ClientId, Mac, NetAddr0) ->
+alloc_ip0(NetworkId, Ips, ClientId, Mac, NetAddr0, HostName) ->
     Tab = get_table_name(NetworkId),
 
     case mnesia:read(Tab, ClientId) of
@@ -97,21 +118,28 @@ alloc_ip0(NetworkId, Ips, ClientId, Mac, NetAddr0) ->
         [#client{status = disabled}] ->
             mnesia:abort(client_disabled);
         [] ->
-            UsedIps = mnesia:foldl(fun(#client{ip = Ip0}, Acc) -> [Ip0|Acc] end, [], Tab),
-            case lists:member(NetAddr0, Ips) andalso not lists:member(NetAddr0, UsedIps) of
+            {UsedIps, UsedHostNames} = mnesia:foldl(fun(#client{ip = Ip0, host_name = HostName0}, {IpAcc, HostNameAcc}) ->
+                {[Ip0|IpAcc], [HostName0|HostNameAcc]}
+                                                    end, {[], []}, Tab),
+            case HostName =/= <<>> andalso lists:member(HostName, UsedHostNames) of
                 true ->
-                    %% 如果ip没有被占用，则分配給当前请求
-                    Client = #client{client_id = ClientId, mac = Mac, ip = NetAddr0},
-                    ok = mnesia:write(Tab, Client, write),
-                    NetAddr0;
+                    mnesia:abort(host_name_used);
                 false ->
-                    case Ips -- UsedIps of
-                        [] ->
-                            mnesia:abort(no_ip);
-                        [Ip|_] ->
-                            Client = #client{client_id = ClientId, mac = Mac, ip = Ip, status = normal},
+                    case lists:member(NetAddr0, Ips) andalso not lists:member(NetAddr0, UsedIps) of
+                        true ->
+                            %% 如果ip没有被占用，则分配給当前请求
+                            Client = #client{client_id = ClientId, mac = Mac, ip = NetAddr0, host_name = HostName, status = normal},
                             ok = mnesia:write(Tab, Client, write),
-                            Ip
+                            NetAddr0;
+                        false ->
+                            case Ips -- UsedIps of
+                                [] ->
+                                    mnesia:abort(no_ip);
+                                [Ip|_] ->
+                                    Client = #client{client_id = ClientId, mac = Mac, ip = Ip, host_name = HostName, status = normal},
+                                    ok = mnesia:write(Tab, Client, write),
+                                    Ip
+                            end
                     end
             end
     end.
diff --git a/apps/sdlan/src/sdlan.app.src b/apps/sdlan/src/sdlan.app.src
index 645a6b8..be8ab20 100644
--- a/apps/sdlan/src/sdlan.app.src
+++ b/apps/sdlan/src/sdlan.app.src
@@ -11,11 +11,12 @@
     ranch,
     poolboy,
     mysql,
-    esockd,
     jiffy,
     hackney,
     gpb,
     throttle,
+    dns_erlang,
+    pkt,
     parse_trans,
     mnesia,
     erts,
diff --git a/apps/sdlan/src/sdlan_api.erl b/apps/sdlan/src/sdlan_api.erl
index 5628a76..8b671a4 100644
--- a/apps/sdlan/src/sdlan_api.erl
+++ b/apps/sdlan/src/sdlan_api.erl
@@ -13,7 +13,7 @@
 
 %% API
 -export([get_all_networks/0, get_network/1]).
--export([auth_token/3, node_online/3, node_offline/2, flow_report/5, network_forward_report/2]).
+-export([auth_token/3, node_online/3, node_offline/2, flow_report/5, network_forward_report/2, auth_network_code/3]).
 
 -spec get_all_networks() -> {ok, [NetworkId :: integer()]} | {error, Reason :: any()}.
 get_all_networks() ->
@@ -61,6 +61,20 @@ auth_token(ClientId, Token, Version) when is_binary(ClientId), is_binary(Token),
             Error
     end.
 
+-spec auth_network_code(ClientId :: binary(), NetworkCode :: binary(), Version :: integer()) -> {ok, Resp :: map()} | {error, Reason :: any()}.
+auth_network_code(ClientId, NetworkCode, Version) when is_binary(ClientId), is_binary(NetworkCode), is_integer(Version) ->
+    case catch do_post("check_network", #{<<"client_id">> => ClientId, <<"code">> => NetworkCode, <<"version">> => Version}) of
+        {ok, Resp} ->
+            case catch jiffy:decode(Resp, [return_maps]) of
+                Result when is_map(Result) ->
+                    {ok, Result};
+                {error, Reason} ->
+                    {error, Reason}
+            end;
+        Error ->
+            Error
+    end.
+
 -spec node_online(ClientId :: binary(), NetworkId :: integer(), IpAddr :: binary()) -> {ok, Resp :: map()} | {error, Reason :: any()}.
 node_online(ClientId, NetworkId, IpAddr) when is_binary(ClientId), is_integer(NetworkId), is_binary(IpAddr) ->
     case catch do_post("set_node_status", #{<<"client_id">> => ClientId, <<"network_id">> => NetworkId, <<"ip_addr">> => IpAddr, <<"status">> => 1}) of
diff --git a/apps/sdlan/src/sdlan_app.erl b/apps/sdlan/src/sdlan_app.erl
index c5f4400..92ac12d 100644
--- a/apps/sdlan/src/sdlan_app.erl
+++ b/apps/sdlan/src/sdlan_app.erl
@@ -15,6 +15,12 @@ start(_StartType, _StartArgs) ->
     mnesia:start(),
     %% 加速内存的回收
     erlang:system_flag(fullsweep_after, 16),
+
+    %% 启动注册表
+    sdlan_hostname_regedit:init(),
+    sdlan_domain_regedit:init(),
+    dns_pending_wheel:start(),
+
     start_http_server(),
     start_tcp_server(),
     sdlan_sup:start_link().
@@ -61,18 +67,15 @@ start_tcp_server() ->
     Backlog = proplists:get_value(backlog, Props, 1024),
     Port = proplists:get_value(port, Props),
 
-    TransOpts = [
-        {tcp_options, [
-            binary,
-            {reuseaddr, true},
-            {active, false},
-            {packet, 2},
+    TransOpts = #{
+        num_acceptors => Acceptors,
+        max_connections => MaxConnections,
+        socket_opts => [
+            {port, Port},
             {nodelay, false},
             {backlog, Backlog}
-        ]},
-        {acceptors, Acceptors},
-        {max_connections, MaxConnections}
-    ],
-    {ok, _} = esockd:open('sdlan/tcp_server', Port, TransOpts, {sdlan_channel, start_link, []}),
+        ]
+    },
+    {ok, _} = ranch:start_listener('sdlan/tcp_server', ranch_tcp, TransOpts, sdlan_channel, []),
 
     lager:debug("[sdlan_app] the tcp server start at: ~p", [Port]).
\ No newline at end of file
diff --git a/apps/sdlan/src/sdlan_channel.erl b/apps/sdlan/src/sdlan_channel.erl
index 096d8be..5187442 100644
--- a/apps/sdlan/src/sdlan_channel.erl
+++ b/apps/sdlan/src/sdlan_channel.erl
@@ -28,6 +28,8 @@
 -define(NAK_NETWORK_FAULT, 4).
 %% 内部错误
 -define(NAK_INTERNAL_FAULT, 5).
+%% hostname被占用
+-define(NAK_HOSTNAME_USED, 6).
 
 %% 升级策略
 -define(UPGRADE_NONE, 0).
@@ -35,8 +37,8 @@
 -define(UPGRADE_FORCE, 2).
 
 %% API
--export([start_link/2]).
--export([publish_command/4, send_event/3, stop/2, move_network/3]).
+-export([start_link/4]).
+-export([publish_command/4, send_event/3, stop/2, move_network/4]).
 
 -export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, code_change/3]).
 
@@ -75,10 +77,10 @@ publish_command(Pid, ReceiverPid, CommandType, Msg) when is_pid(Pid), is_pid(Rec
     Ref.
 
 %% 网络迁移是一种特殊的指令信息，需要单独处理
--spec move_network(Pid :: pid(), ReceiverPid :: pid(), NetworkPid :: pid()) -> Ref :: reference().
-move_network(Pid, ReceiverPid, NetworkPid) when is_pid(Pid), is_pid(ReceiverPid), is_pid(NetworkPid) ->
+-spec move_network(Pid :: pid(), ReceiverPid :: pid(), NetworkPid :: pid(), HostName :: binary()) -> Ref :: reference().
+move_network(Pid, ReceiverPid, NetworkPid, HostName) when is_pid(Pid), is_pid(ReceiverPid), is_pid(NetworkPid), is_binary(HostName) ->
     Ref = make_ref(),
-    Pid ! {move_network, ReceiverPid, Ref, NetworkPid},
+    Pid ! {move_network, ReceiverPid, Ref, NetworkPid, HostName},
     Ref.
 
 %% 向通道中写入消息
@@ -97,19 +99,15 @@ stop(Pid, Reason) when is_pid(Pid) ->
 %% esockd callback
 %%--------------------------------------------------------------------
 
-start_link(Transport, Sock) ->
-    {ok, proc_lib:spawn_link(?MODULE, init, [[Transport, Sock]])}.
+start_link(Ref, _Socket, Transport, Opts) ->
+    {ok, proc_lib:spawn_link(?MODULE, init, [[Ref, Transport, Opts]])}.
 
-init([Transport, Sock]) ->
-    lager:debug("[sdlan_channel] get a new connection: ~p", [Sock]),
-    case Transport:wait(Sock) of
-        {ok, NewSock} ->
-            Transport:setopts(Sock, [{active, true}]),
-            erlang:start_timer(?PING_TICKER, self(), ping_ticker),
-            gen_server:enter_loop(?MODULE, [], #state{transport = Transport, socket = NewSock});
-        {error, Reason} ->
-            {stop, Reason}
-    end.
+init([Ref, Transport, _Opts = []]) ->
+    {ok, Socket} = ranch:handshake(Ref),
+    lager:debug("[sdlan_channel] get a new connection: ~p", [Socket]),
+    Transport:setopts(Socket, [{active, true}, {packet, 2}]),
+    erlang:start_timer(?PING_TICKER, self(), ping_ticker),
+    gen_server:enter_loop(?MODULE, [], #state{transport = Transport, socket = Socket}).
 
 handle_call(_Request, _From, State) ->
     {reply, ok, State}.
@@ -117,23 +115,33 @@ handle_call(_Request, _From, State) ->
 handle_cast(_Msg, State) ->
     {noreply, State}.
 
+%% 带上token或者网络id来注册
 handle_info({tcp, Sock, <<PacketId:32, ?PACKET_REGISTER_SUPER, Body/binary>>}, State=#state{transport = Transport, socket = Sock}) ->
-    #sdl_register_super{version = Version, client_id = ClientId, dev_addr = #sdl_dev_addr{net_addr = NetAddr0, mac = Mac}, token = Token, pub_key = PubKey} = sdlan_pb:decode_msg(Body, sdl_register_super),
+    #sdl_register_super{version = Version, client_id = ClientId, hostname = HostName, dev_addr = #sdl_dev_addr{net_addr = NetAddr0, mac = Mac}, network_code = NetworkCode, token = Token, pub_key = PubKey} = sdlan_pb:decode_msg(Body, sdl_register_super),
 
     %% 参数检查
-    lager:debug("[sdlan_channel] client_id: ~p, public_key: ~p", [ClientId, PubKey]),
+    lager:debug("[sdlan_channel] client_id: ~p, public_key: ~p, token: ~p, network_code: ~p", [ClientId, PubKey, Token, NetworkCode]),
     true = (Mac =/= <<>> andalso PubKey =/= <<>> andalso ClientId =/= <<>>),
     %% Mac地址不能是广播地址
     true = not (sdlan_util:is_multicast_mac(Mac) orelse sdlan_util:is_broadcast_mac(Mac)),
 
-    case sdlan_api:auth_token(ClientId, Token, Version) of
+    AuthResult = if
+                     Token /= <<>> ->
+                         lager:debug("[sdlan_channel] auth token: ~p", [Token]),
+                         sdlan_api:auth_token(ClientId, Token, Version);
+                     NetworkCode /= <<>> ->
+                         lager:debug("[sdlan_channel] auth network code: ~p", [NetworkCode]),
+                         sdlan_api:auth_network_code(ClientId, NetworkCode, Version)
+                 end,
+
+    case AuthResult of
         {ok, #{<<"result">> := #{<<"network_id">> := NetworkId, <<"upgrade_type">> := UpgradeType, <<"upgrade_prompt">> := UpgradePrompt, <<"upgrade_address">> := UpgradeAddress}}} when is_integer(NetworkId) ->
             lager:debug("[sdlan_channel] client_id: ~p, mac: ~p, token: ~p, version: ~p, registerd, alloc network_id: ~p", [ClientId, sdlan_util:format_mac(Mac), Token, Version, NetworkId]),
             %% 建立到network的对应关系
             case sdlan_network:get_pid(NetworkId) of
                 NetworkPid when is_pid(NetworkPid) ->
-                    try sdlan_network:assign_ip_addr(NetworkPid, self(), ClientId, Mac, NetAddr0) of
-                        {ok, NetAddr, NetBitLen, AesKey} ->
+                    try sdlan_network:assign_ip_addr(NetworkPid, self(), ClientId, Mac, NetAddr0, HostName) of
+                        {ok, Domain, NetAddr, NetBitLen, AesKey} ->
                             RsaPubKey = sdlan_cipher:rsa_pem_decode(PubKey),
                             EncodedAesKey = rsa_encode(AesKey, RsaPubKey),
 
@@ -142,7 +150,8 @@ handle_info({tcp, Sock, <<PacketId:32, ?PACKET_REGISTER_SUPER, Body/binary>>}, S
                                     network_id = NetworkId,
                                     net_addr = NetAddr,
                                     mac = Mac,
-                                    net_bit_len = NetBitLen
+                                    net_bit_len = NetBitLen,
+                                    network_domain = Domain
                                 },
                                 aes_key = EncodedAesKey,
                                 upgrade_type = UpgradeType,
@@ -167,34 +176,38 @@ handle_info({tcp, Sock, <<PacketId:32, ?PACKET_REGISTER_SUPER, Body/binary>>}, S
                                     {noreply, State#state{client_id = ClientId, mac = Mac, assign_ip = NetAddr, network_pid = NetworkPid, pub_key = PubKey, is_registered = true}}
                             end;
                         {error, no_ip} ->
-                            lager:debug("[sdlan_channel] client_id: ~p, token: ~p, register get error: no_ip", [ClientId, Token]),
+                            lager:warning("[sdlan_channel] client_id: ~p, token: ~p, register get error: no_ip", [ClientId, Token]),
                             Transport:send(Sock, register_nak_reply(PacketId, ?NAK_NO_IP, <<"No Ip address">>)),
                             {stop, normal, State};
+                        {error, host_name_used} ->
+                            lager:warning("[sdlan_channel] client_id: ~p, token: ~p, register get error: host_name_used", [ClientId, Token]),
+                            Transport:send(Sock, register_nak_reply(PacketId, ?NAK_HOSTNAME_USED, <<"Host Name Used">>)),
+                            {stop, normal, State};
                         {error, client_disabled} ->
-                            lager:debug("[sdlan_channel] client_id: ~p, token: ~p, register get error: client_disabled", [ClientId, Token]),
+                            lager:warning("[sdlan_channel] client_id: ~p, token: ~p, register get error: client_disabled", [ClientId, Token]),
                             Transport:send(Sock, register_nak_reply(PacketId, ?NAK_NODE_DISABLE, <<"Client Connection Disable">>)),
                             {stop, normal, State}
                     catch _:Error:Stack ->
-                        lager:debug("[sdlan_channel] get error: ~p, stack: ~p", [Error, Stack])
+                        lager:warning("[sdlan_channel] get error: ~p, stack: ~p", [Error, Stack])
                     end;
                 undefined ->
-                    lager:debug("[sdlan_channel] client_id: ~p, token: ~p, register get error: network not found", [ClientId, Token]),
+                    lager:warning("[sdlan_channel] client_id: ~p, token: ~p, register get error: network not found", [ClientId, Token]),
                     Transport:send(Sock, register_nak_reply(PacketId, ?NAK_INTERNAL_FAULT, <<"Internal Error">>)),
 
                     {stop, normal, State}
             end;
         {ok, #{<<"error">> := #{<<"code">> := 1, <<"message">> := Message}}} ->
-            lager:debug("[sdlan_channel] client_id: ~p, token: ~p, register get error: ~p, error_code: 1", [ClientId, Token, Message]),
+            lager:warning("[sdlan_channel] client_id: ~p, token: ~p, register get error: ~ts, error_code: 1", [ClientId, Token, Message]),
             Transport:send(Sock, register_nak_reply(PacketId, ?NAK_INVALID_TOKEN, Message)),
             {stop, normal, State};
 
         {ok, #{<<"error">> := #{<<"code">> := 2, <<"message">> := Message}}} ->
-            lager:debug("[sdlan_channel] client_id: ~p, token: ~p, register get error: ~p, error_code: 2", [ClientId, Token, Message]),
+            lager:warning("[sdlan_channel] client_id: ~p, token: ~p, register get error: ~p, error_code: 2", [ClientId, Token, Message]),
             Transport:send(Sock, register_nak_reply(PacketId, ?NAK_NODE_DISABLE, Message)),
             {stop, normal, State};
 
         {error, Reason} ->
-            lager:debug("[sdlan_channel] client_id: ~p, token: ~p, register get error: ~p", [ClientId, Token, Reason]),
+            lager:warning("[sdlan_channel] client_id: ~p, token: ~p, register get error: ~p", [ClientId, Token, Reason]),
             Transport:send(Sock, register_nak_reply(PacketId, ?NAK_NETWORK_FAULT, <<"Network Error">>)),
             {stop, normal, State}
     end;
@@ -225,8 +238,8 @@ handle_info({tcp, Sock, <<PacketId:32, ?PACKET_QUERY_INFO, Body/binary>>}, State
             {noreply, State}
     end;
 
-handle_info({tcp, _Sock, <<0:32, ?PACKET_PING>>}, State = #state{transport = Transport, socket = Sock, client_id = ClientId,  ping_counter = PingCounter}) ->
-    lager:debug("[sdlan_channel] client_id: ~p, get ping", [ClientId]),
+handle_info({tcp, _Sock, <<0:32, ?PACKET_PING>>}, State = #state{transport = Transport, socket = Sock, ping_counter = PingCounter}) ->
+    %lager:debug("[sdlan_channel] client_id: ~p, get ping", [ClientId]),
     Transport:send(Sock, <<0:32, ?PACKET_PONG>>),
     {noreply, State#state{ping_counter = PingCounter + 1}};
 
@@ -242,12 +255,12 @@ handle_info({timeout, _, ping_ticker}, State = #state{client_id = ClientId, ping
     end;
 
 %% 重新加入网络
-handle_info({move_network, ReceiverPid, Ref, NetworkPid},
+handle_info({move_network, ReceiverPid, Ref, NetworkPid, HostName},
     State = #state{transport = Transport, socket = Sock, client_id = ClientId, mac = Mac, pub_key = PubKey, packet_id = PacketId, inflight = Inflight, is_registered = true}) ->
 
     %% 建立到network的对应关系
-    case sdlan_network:assign_ip_addr(NetworkPid, self(), ClientId, Mac, 0) of
-        {ok, NetAddr, NetBitLen, AesKey} ->
+    case sdlan_network:assign_ip_addr(NetworkPid, self(), ClientId, Mac, 0, HostName) of
+        {ok, Domain, NetAddr, NetBitLen, AesKey} ->
             RsaPubKey = sdlan_cipher:rsa_pem_decode(PubKey),
             EncodedAesKey = rsa_encode(AesKey, RsaPubKey),
 
@@ -257,7 +270,8 @@ handle_info({move_network, ReceiverPid, Ref, NetworkPid},
                 dev_addr = #sdl_dev_addr {
                     network_id = NetworkId,
                     net_addr = NetAddr,
-                    net_bit_len = NetBitLen
+                    net_bit_len = NetBitLen,
+                    network_domain = Domain
                 },
                 aes_key = EncodedAesKey
             }),
diff --git a/apps/sdlan/src/sdlan_domain_regedit.erl b/apps/sdlan/src/sdlan_domain_regedit.erl
new file mode 100644
index 0000000..7fe64df
--- /dev/null
+++ b/apps/sdlan/src/sdlan_domain_regedit.erl
@@ -0,0 +1,36 @@
+%%%-------------------------------------------------------------------
+%%% @author anlicheng
+%%% @copyright (C) 2025, <COMPANY>
+%%% @doc
+%%% 内部地址协议注册表
+%%% @end
+%%% Created : 13. 12月 2025 21:09
+%%%-------------------------------------------------------------------
+-module(sdlan_domain_regedit).
+-author("anlicheng").
+
+%% API
+-export([init/0, insert/1, maybe_domain/1]).
+
+-define(TABLE, sdlan_domain_regedit).
+
+init() ->
+    ets:new(?TABLE, [named_table, ordered_set, public, {read_concurrency, true}, {write_concurrency, true}]).
+
+-spec maybe_domain(QName :: binary()) -> boolean().
+maybe_domain(QName) when is_binary(QName) ->
+    case binary:split(QName, <<".">>) of
+        [_, Domain] ->
+            case ets:lookup(?TABLE, Domain) of
+                [{Domain}] ->
+                    true;
+                [] ->
+                    false
+            end;
+        _ ->
+            false
+    end.
+
+-spec insert(Domain :: binary()) -> no_return().
+insert(Domain) when is_binary(Domain) ->
+    true = ets:insert(?TABLE, {Domain}).
\ No newline at end of file
diff --git a/apps/sdlan/src/sdlan_hostname_regedit.erl b/apps/sdlan/src/sdlan_hostname_regedit.erl
new file mode 100644
index 0000000..c934516
--- /dev/null
+++ b/apps/sdlan/src/sdlan_hostname_regedit.erl
@@ -0,0 +1,32 @@
+%%%-------------------------------------------------------------------
+%%% @author anlicheng
+%%% @copyright (C) 2025, <COMPANY>
+%%% @doc
+%%% 内部地址协议注册表
+%%% @end
+%%% Created : 13. 12月 2025 21:09
+%%%-------------------------------------------------------------------
+-module(sdlan_hostname_regedit).
+-author("anlicheng").
+
+%% API
+-export([init/0, lookup/1, insert/2]).
+
+-define(TABLE, sdlan_hostname_regedit).
+
+init() ->
+    ets:new(?TABLE, [named_table, set, public, {read_concurrency, true}, {write_concurrency, true}]).
+
+-spec lookup(FullHostname :: binary()) -> error | {ok, Ip :: inet:ip4_address()}.
+lookup(FullHostname) when is_binary(FullHostname) ->
+    case ets:lookup(?TABLE, FullHostname) of
+        [{_, Ip}] ->
+            {ok, Ip};
+        [] ->
+            error
+    end.
+
+-spec insert(FullHostname :: binary(), Ip :: integer()) -> no_return().
+insert(FullHostname, Ip) when is_binary(FullHostname), is_integer(Ip) ->
+    <<Ip0, Ip1, Ip2, Ip3>> = <<Ip:32>>,
+    true = ets:insert(?TABLE, {FullHostname, {Ip0, Ip1, Ip2, Ip3}}).
\ No newline at end of file
diff --git a/apps/sdlan/src/sdlan_network.erl b/apps/sdlan/src/sdlan_network.erl
index f5e4f85..5672296 100644
--- a/apps/sdlan/src/sdlan_network.erl
+++ b/apps/sdlan/src/sdlan_network.erl
@@ -21,7 +21,7 @@
 
 %% API
 -export([start_link/2]).
--export([get_name/1, get_pid/1, assign_ip_addr/5, peer_info/3, unregister/3, debug_info/1, get_network_id/1, get_used_map/1]).
+-export([get_name/1, get_pid/1, assign_ip_addr/6, peer_info/3, unregister/3, debug_info/1, get_network_id/1, get_used_map/1]).
 -export([forward/5, update_hole/6, disable_client/2, get_channel/2, dropout_client/2, reload/1]).
 -export([test_event/1]).
 
@@ -33,11 +33,9 @@
     nat_type :: integer()
 }).
 
-%% ip的使用信息
+%% ip的使用信息, 记录主机的动态信息
 -record(host, {
     client_id :: binary(),
-    mac :: binary(),
-    ip :: integer(),
     channel_pid :: undefined | pid(),
     monitor_ref :: undefined | reference(),
     hole :: undefined | #hole{},
@@ -48,6 +46,7 @@
 -record(state, {
     network_id :: integer(),
     name :: binary(),
+    domain :: binary(),
     ipaddr :: binary(),
     mask_len :: integer(),
     owner_id :: integer(),
@@ -89,10 +88,10 @@ get_name(Id) when is_integer(Id) ->
 reload(Pid) when is_pid(Pid) ->
     gen_server:call(Pid, reload).
 
--spec assign_ip_addr(Pid :: pid(), ChannelPid :: pid(), ClientId :: binary(), Mac :: binary(), NetAddr :: integer()) ->
-    {ok, NetAddr :: integer(), MaskLen :: integer(), AesKey :: binary()} | {error, Reason :: any()}.
-assign_ip_addr(Pid, ChannelPid, ClientId, Mac, NetAddr) when is_pid(Pid), is_pid(ChannelPid), is_binary(ClientId), is_binary(Mac), is_integer(NetAddr) ->
-    gen_server:call(Pid, {assign_ip_addr, ChannelPid, ClientId, Mac, NetAddr}).
+-spec assign_ip_addr(Pid :: pid(), ChannelPid :: pid(), ClientId :: binary(), Mac :: binary(), NetAddr :: integer(), HostName :: binary()) ->
+    {ok, Domain :: binary(), NetAddr :: integer(), MaskLen :: integer(), AesKey :: binary()} | {error, Reason :: any()}.
+assign_ip_addr(Pid, ChannelPid, ClientId, Mac, NetAddr, HostName) when is_pid(Pid), is_pid(ChannelPid), is_binary(ClientId), is_binary(Mac), is_integer(NetAddr) ->
+    gen_server:call(Pid, {assign_ip_addr, ChannelPid, ClientId, Mac, NetAddr, HostName}).
 
 -spec get_network_id(Pid :: pid()) -> {ok, NetworkId :: integer()}.
 get_network_id(Pid) when is_pid(Pid) ->
@@ -125,7 +124,7 @@ get_channel(Pid, ClientId) when is_pid(Pid), is_binary(ClientId) ->
     gen_server:call(Pid, {get_channel, ClientId}).
 
 %% 剔除client_id，channel不关闭; channel会被重新绑定到其他的network里面
--spec dropout_client(Pid :: pid(), ClientId :: binary()) -> {ok, ChannelPid :: pid()} | error.
+-spec dropout_client(Pid :: pid(), ClientId :: binary()) -> {ok, ChannelPid :: pid(), HostName :: binary()} | error.
 dropout_client(Pid, ClientId) when is_pid(Pid), is_binary(ClientId) ->
     gen_server:call(Pid, {dropout_client, ClientId}).
 
@@ -159,7 +158,7 @@ init([Id]) when is_integer(Id) ->
     case sdlan_api:get_network(Id) of
         {ok, #{<<"ipaddr">> := Null}} when Null == <<"null">>; Null == <<"NULL">> ->
             ignore;
-        {ok, #{<<"id">> := Id, <<"name">> := Name, <<"ipaddr">> := IpAddr0, <<"owner_id">> := OwnerId}} ->
+        {ok, #{<<"id">> := Id, <<"name">> := Name, <<"domain">> := Domain, <<"ipaddr">> := IpAddr0, <<"owner_id">> := OwnerId}} ->
             {IpAddr, MaskLen} = parse_ipaddr(IpAddr0),
             Ips = sdlan_ipaddr:ips(IpAddr, MaskLen),
             AesKey = sdlan_util:rand_byte(32),
@@ -176,7 +175,9 @@ init([Id]) when is_integer(Id) ->
 
             lager:debug("[sdlan_network] network: ~p, ips: ~p", [Id, lists:map(fun sdlan_ipaddr:int_to_ipv4/1, Ips)]),
 
-            {ok, #state{network_id = Id, name = Name, ipaddr = IpAddr, owner_id = OwnerId, mask_len = MaskLen, ips = Ips, aes_key = AesKey, throttle_key = ThrottleKey}};
+            sdlan_domain_regedit:insert(Domain),
+
+            {ok, #state{network_id = Id, name = Name, domain = Domain, ipaddr = IpAddr, owner_id = OwnerId, mask_len = MaskLen, ips = Ips, aes_key = AesKey, throttle_key = ThrottleKey}};
         {error, Reason} ->
             lager:warning("[sdlan_network] load network: ~p, get error: ~p", [Id, Reason]),
             ignore
@@ -220,23 +221,32 @@ handle_call(reload, _From, State = #state{network_id = Id, ipaddr = OldIpAddr, m
     end;
 
 %% 给客户端分配ip地址
-handle_call({assign_ip_addr, ChannelPid, ClientId, Mac, NetAddr0}, _From,
-    State = #state{network_id = NetworkId, ips = Ips, used_map = UsedMap, mask_len = MaskLen, aes_key = AesKey}) ->
+handle_call({assign_ip_addr, ChannelPid, ClientId, Mac, NetAddr0, HostName}, _From,
+    State = #state{network_id = NetworkId, domain = Domain, ips = Ips, used_map = UsedMap, mask_len = MaskLen, aes_key = AesKey}) ->
 
     %% 分配ip地址的时候，以mac地址为唯一基准
     lager:debug("[sdlan_network] alloc_ip, network_id: ~p, ips: ~p, client_id: ~p, mac: ~p, net_addr: ~p",
         [NetworkId, Ips, ClientId, sdlan_util:format_mac(Mac), sdlan_ipaddr:int_to_ipv4(NetAddr0)]),
 
-    case client_model:alloc_ip(NetworkId, Ips, ClientId, Mac, NetAddr0) of
+    case client_model:alloc_ip(NetworkId, Ips, ClientId, Mac, NetAddr0, HostName) of
         {ok, Ip} ->
             %% 关闭之前的channel
             maybe_close_channel(maps:get(Mac, UsedMap, undefined)),
 
+            %% 添加域名->ip的映射关系
+            case HostName =/= <<>> of
+                true ->
+                    FullHostname = <<HostName/binary, ".", Domain/binary>>,
+                    sdlan_hostname_regedit:insert(FullHostname, Ip);
+                false ->
+                    ok
+            end,
+
             %% 建立到新的channel之间的关系
             MRef = monitor(process, ChannelPid),
-            NUsedMap = maps:put(Mac, #host{client_id = ClientId, mac = Mac, ip = Ip, channel_pid = ChannelPid, monitor_ref = MRef}, UsedMap),
+            NUsedMap = maps:put(Mac, #host{client_id = ClientId, channel_pid = ChannelPid, monitor_ref = MRef}, UsedMap),
 
-            {reply, {ok, Ip, MaskLen, AesKey}, State#state{used_map = NUsedMap}};
+            {reply, {ok, Domain, Ip, MaskLen, AesKey}, State#state{used_map = NUsedMap}};
         {error, Reason} ->
             {reply, {error, Reason}, State}
     end;
@@ -297,9 +307,12 @@ handle_call({dropout_client, ClientId}, _From, State = #state{network_id = Netwo
             is_reference(MRef) andalso demonitor(MRef),
             NUsedMap = maps:remove(Mac, UsedMap),
             %% 从数据库删除
-            client_model:delete_client(NetworkId, ClientId),
-
-            {reply, {ok, ChannelPid}, State#state{used_map = NUsedMap}};
+            case client_model:delete_client(NetworkId, ClientId) of
+                {ok, #client{host_name = HostName}} ->
+                    {reply, {ok, ChannelPid, HostName}, State#state{used_map = NUsedMap}};
+                {error, _} ->
+                    {reply, error, State}
+            end;
         false ->
             {reply, error, State}
     end;
@@ -337,7 +350,14 @@ handle_call(debug_info, _From, State = #state{network_id = NetworkId, ipaddr = I
         <<"mask_len">> => MaskLen,
         <<"owner_id">> => OwnerId,
         <<"ips">> => lists:map(fun sdlan_ipaddr:int_to_ipv4/1, Ips),
-        <<"used_ips">> => lists:map(fun({_, Host}) -> format_host(Host) end, maps:to_list(UsedMap))
+        <<"used_ips">> => lists:map(fun({_, Host = #host{client_id = ClientId}}) ->
+            case client_model:get_client(NetworkId, ClientId) of
+                error ->
+                    #{};
+                {ok, #client{mac = Mac, ip = Ip}} ->
+                    format_host(Host, Ip, Mac)
+            end
+                                    end, maps:to_list(UsedMap))
     },
     {reply, Reply, State}.
 
@@ -434,12 +454,12 @@ handle_cast({unregister, _ClientId, Mac}, State = #state{network_id = NetworkId,
     end;
 
 %% 需要判断，client是属于当前网络的
-handle_cast({update_hole, _ClientId, Mac, Peer, NatType, V6Info}, State = #state{used_map = UsedMap}) ->
-    case maps:find(Mac, UsedMap) of
-        {ok, Host0 = #host{hole = OldHole, ip = Ip}} ->
+handle_cast({update_hole, ClientId, Mac, Peer, NatType, V6Info}, State = #state{network_id = NetworkId, used_map = UsedMap}) ->
+    case {maps:find(Mac, UsedMap), client_model:get_client(NetworkId, ClientId)} of
+        {{ok, Host0 = #host{client_id = ClientId0, hole = OldHole}}, {ok, #client{ip = Ip}}} when ClientId =:= ClientId0 ->
             case OldHole =:= undefined orelse (OldHole#hole.peer =/= Peer orelse OldHole#hole.nat_type =/= NatType) of
                 true ->
-                    NatChangedEvent = sdlan_pb:encode_msg(#sdl_nat_changed_event {
+                    NatChangedEvent = sdlan_pb:encode_msg(#sdl_nat_changed_event{
                         mac = Mac,
                         ip = Ip
                     }),
@@ -450,7 +470,7 @@ handle_cast({update_hole, _ClientId, Mac, Peer, NatType, V6Info}, State = #state
             Host = Host0#host{hole = #hole{peer = Peer, nat_type = NatType}, v6_info = V6Info},
 
             {noreply, State#state{used_map = maps:put(Mac, Host, UsedMap)}};
-        error ->
+        _ ->
             {noreply, State}
     end.
 
@@ -560,8 +580,8 @@ parse_ipaddr(IpAddr0) when is_binary(IpAddr0) ->
             {IpAddr0, 24}
     end.
 
--spec format_host(Host :: #host{}) -> map().
-format_host(#host{client_id = ClientId, mac = Mac, ip = Ip, hole = Hole, v6_info = V6Info}) ->
+-spec format_host(Host :: #host{}, Ip :: integer(), Mac :: binary()) -> map().
+format_host(#host{client_id = ClientId, hole = Hole, v6_info = V6Info}, Ip, Mac) when is_integer(Ip), is_binary(Mac) ->
     HoleMap = case Hole of
                    undefined ->
                        #{};
diff --git a/apps/sdlan/src/sdlan_pb.erl b/apps/sdlan/src/sdlan_pb.erl
index f3ddf96..a7c4c8c 100644
--- a/apps/sdlan/src/sdlan_pb.erl
+++ b/apps/sdlan/src/sdlan_pb.erl
@@ -213,7 +213,7 @@ encode_msg_sdl_v6_info(#sdl_v6_info{port = F1, v6 = F2}, Bin, TrUserData) ->
 encode_msg_sdl_dev_addr(Msg, TrUserData) -> encode_msg_sdl_dev_addr(Msg, <<>>, TrUserData).
 
 
-encode_msg_sdl_dev_addr(#sdl_dev_addr{network_id = F1, mac = F2, net_addr = F3, net_bit_len = F4}, Bin, TrUserData) ->
+encode_msg_sdl_dev_addr(#sdl_dev_addr{network_id = F1, mac = F2, net_addr = F3, net_bit_len = F4, network_domain = F5}, Bin, TrUserData) ->
     B1 = if F1 == undefined -> Bin;
             true ->
                 begin
@@ -242,12 +242,22 @@ encode_msg_sdl_dev_addr(#sdl_dev_addr{network_id = F1, mac = F2, net_addr = F3,
                     end
                 end
          end,
-    if F4 == undefined -> B3;
+    B4 = if F4 == undefined -> B3;
+            true ->
+                begin
+                    TrF4 = id(F4, TrUserData),
+                    if TrF4 =:= 0 -> B3;
+                       true -> e_varint(TrF4, <<B3/binary, 32>>, TrUserData)
+                    end
+                end
+         end,
+    if F5 == undefined -> B4;
        true ->
            begin
-               TrF4 = id(F4, TrUserData),
-               if TrF4 =:= 0 -> B3;
-                  true -> e_varint(TrF4, <<B3/binary, 32>>, TrUserData)
+               TrF5 = id(F5, TrUserData),
+               case is_empty_string(TrF5) of
+                   true -> B4;
+                   false -> e_type_string(TrF5, <<B4/binary, 42>>, TrUserData)
                end
            end
     end.
@@ -257,7 +267,7 @@ encode_msg_sdl_empty(_Msg, _TrUserData) -> <<>>.
 encode_msg_sdl_register_super(Msg, TrUserData) -> encode_msg_sdl_register_super(Msg, <<>>, TrUserData).
 
 
-encode_msg_sdl_register_super(#sdl_register_super{version = F1, installed_channel = F2, client_id = F3, dev_addr = F4, pub_key = F5, token = F6}, Bin, TrUserData) ->
+encode_msg_sdl_register_super(#sdl_register_super{version = F1, installed_channel = F2, client_id = F3, dev_addr = F4, pub_key = F5, token = F6, network_code = F7, hostname = F8}, Bin, TrUserData) ->
     B1 = if F1 == undefined -> Bin;
             true ->
                 begin
@@ -306,13 +316,33 @@ encode_msg_sdl_register_super(#sdl_register_super{version = F1, installed_channe
                     end
                 end
          end,
-    if F6 == undefined -> B5;
+    B6 = if F6 == undefined -> B5;
+            true ->
+                begin
+                    TrF6 = id(F6, TrUserData),
+                    case is_empty_string(TrF6) of
+                        true -> B5;
+                        false -> e_type_string(TrF6, <<B5/binary, 50>>, TrUserData)
+                    end
+                end
+         end,
+    B7 = if F7 == undefined -> B6;
+            true ->
+                begin
+                    TrF7 = id(F7, TrUserData),
+                    case is_empty_string(TrF7) of
+                        true -> B6;
+                        false -> e_type_string(TrF7, <<B6/binary, 58>>, TrUserData)
+                    end
+                end
+         end,
+    if F8 == undefined -> B7;
        true ->
            begin
-               TrF6 = id(F6, TrUserData),
-               case is_empty_string(TrF6) of
-                   true -> B5;
-                   false -> e_type_string(TrF6, <<B5/binary, 50>>, TrUserData)
+               TrF8 = id(F8, TrUserData),
+               case is_empty_string(TrF8) of
+                   true -> B7;
+                   false -> e_type_string(TrF8, <<B7/binary, 66>>, TrUserData)
                end
            end
     end.
@@ -1149,70 +1179,77 @@ skip_32_sdl_v6_info(<<_:32, Rest/binary>>, Z1, Z2, F, F@_1, F@_2, TrUserData) ->
 
 skip_64_sdl_v6_info(<<_:64, Rest/binary>>, Z1, Z2, F, F@_1, F@_2, TrUserData) -> dfp_read_field_def_sdl_v6_info(Rest, Z1, Z2, F, F@_1, F@_2, TrUserData).
 
-decode_msg_sdl_dev_addr(Bin, TrUserData) -> dfp_read_field_def_sdl_dev_addr(Bin, 0, 0, 0, id(0, TrUserData), id(<<>>, TrUserData), id(0, TrUserData), id(0, TrUserData), TrUserData).
+decode_msg_sdl_dev_addr(Bin, TrUserData) -> dfp_read_field_def_sdl_dev_addr(Bin, 0, 0, 0, id(0, TrUserData), id(<<>>, TrUserData), id(0, TrUserData), id(0, TrUserData), id(<<>>, TrUserData), TrUserData).
 
-dfp_read_field_def_sdl_dev_addr(<<8, Rest/binary>>, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, TrUserData) -> d_field_sdl_dev_addr_network_id(Rest, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, TrUserData);
-dfp_read_field_def_sdl_dev_addr(<<18, Rest/binary>>, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, TrUserData) -> d_field_sdl_dev_addr_mac(Rest, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, TrUserData);
-dfp_read_field_def_sdl_dev_addr(<<24, Rest/binary>>, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, TrUserData) -> d_field_sdl_dev_addr_net_addr(Rest, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, TrUserData);
-dfp_read_field_def_sdl_dev_addr(<<32, Rest/binary>>, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, TrUserData) -> d_field_sdl_dev_addr_net_bit_len(Rest, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, TrUserData);
-dfp_read_field_def_sdl_dev_addr(<<>>, 0, 0, _, F@_1, F@_2, F@_3, F@_4, _) -> #sdl_dev_addr{network_id = F@_1, mac = F@_2, net_addr = F@_3, net_bit_len = F@_4};
-dfp_read_field_def_sdl_dev_addr(Other, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, TrUserData) -> dg_read_field_def_sdl_dev_addr(Other, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, TrUserData).
+dfp_read_field_def_sdl_dev_addr(<<8, Rest/binary>>, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, TrUserData) -> d_field_sdl_dev_addr_network_id(Rest, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, TrUserData);
+dfp_read_field_def_sdl_dev_addr(<<18, Rest/binary>>, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, TrUserData) -> d_field_sdl_dev_addr_mac(Rest, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, TrUserData);
+dfp_read_field_def_sdl_dev_addr(<<24, Rest/binary>>, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, TrUserData) -> d_field_sdl_dev_addr_net_addr(Rest, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, TrUserData);
+dfp_read_field_def_sdl_dev_addr(<<32, Rest/binary>>, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, TrUserData) -> d_field_sdl_dev_addr_net_bit_len(Rest, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, TrUserData);
+dfp_read_field_def_sdl_dev_addr(<<42, Rest/binary>>, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, TrUserData) -> d_field_sdl_dev_addr_network_domain(Rest, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, TrUserData);
+dfp_read_field_def_sdl_dev_addr(<<>>, 0, 0, _, F@_1, F@_2, F@_3, F@_4, F@_5, _) -> #sdl_dev_addr{network_id = F@_1, mac = F@_2, net_addr = F@_3, net_bit_len = F@_4, network_domain = F@_5};
+dfp_read_field_def_sdl_dev_addr(Other, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, TrUserData) -> dg_read_field_def_sdl_dev_addr(Other, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, TrUserData).
 
-dg_read_field_def_sdl_dev_addr(<<1:1, X:7, Rest/binary>>, N, Acc, F, F@_1, F@_2, F@_3, F@_4, TrUserData) when N < 32 - 7 -> dg_read_field_def_sdl_dev_addr(Rest, N + 7, X bsl N + Acc, F, F@_1, F@_2, F@_3, F@_4, TrUserData);
-dg_read_field_def_sdl_dev_addr(<<0:1, X:7, Rest/binary>>, N, Acc, _, F@_1, F@_2, F@_3, F@_4, TrUserData) ->
+dg_read_field_def_sdl_dev_addr(<<1:1, X:7, Rest/binary>>, N, Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, TrUserData) when N < 32 - 7 -> dg_read_field_def_sdl_dev_addr(Rest, N + 7, X bsl N + Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, TrUserData);
+dg_read_field_def_sdl_dev_addr(<<0:1, X:7, Rest/binary>>, N, Acc, _, F@_1, F@_2, F@_3, F@_4, F@_5, TrUserData) ->
     Key = X bsl N + Acc,
     case Key of
-        8 -> d_field_sdl_dev_addr_network_id(Rest, 0, 0, 0, F@_1, F@_2, F@_3, F@_4, TrUserData);
-        18 -> d_field_sdl_dev_addr_mac(Rest, 0, 0, 0, F@_1, F@_2, F@_3, F@_4, TrUserData);
-        24 -> d_field_sdl_dev_addr_net_addr(Rest, 0, 0, 0, F@_1, F@_2, F@_3, F@_4, TrUserData);
-        32 -> d_field_sdl_dev_addr_net_bit_len(Rest, 0, 0, 0, F@_1, F@_2, F@_3, F@_4, TrUserData);
+        8 -> d_field_sdl_dev_addr_network_id(Rest, 0, 0, 0, F@_1, F@_2, F@_3, F@_4, F@_5, TrUserData);
+        18 -> d_field_sdl_dev_addr_mac(Rest, 0, 0, 0, F@_1, F@_2, F@_3, F@_4, F@_5, TrUserData);
+        24 -> d_field_sdl_dev_addr_net_addr(Rest, 0, 0, 0, F@_1, F@_2, F@_3, F@_4, F@_5, TrUserData);
+        32 -> d_field_sdl_dev_addr_net_bit_len(Rest, 0, 0, 0, F@_1, F@_2, F@_3, F@_4, F@_5, TrUserData);
+        42 -> d_field_sdl_dev_addr_network_domain(Rest, 0, 0, 0, F@_1, F@_2, F@_3, F@_4, F@_5, TrUserData);
         _ ->
             case Key band 7 of
-                0 -> skip_varint_sdl_dev_addr(Rest, 0, 0, Key bsr 3, F@_1, F@_2, F@_3, F@_4, TrUserData);
-                1 -> skip_64_sdl_dev_addr(Rest, 0, 0, Key bsr 3, F@_1, F@_2, F@_3, F@_4, TrUserData);
-                2 -> skip_length_delimited_sdl_dev_addr(Rest, 0, 0, Key bsr 3, F@_1, F@_2, F@_3, F@_4, TrUserData);
-                3 -> skip_group_sdl_dev_addr(Rest, 0, 0, Key bsr 3, F@_1, F@_2, F@_3, F@_4, TrUserData);
-                5 -> skip_32_sdl_dev_addr(Rest, 0, 0, Key bsr 3, F@_1, F@_2, F@_3, F@_4, TrUserData)
+                0 -> skip_varint_sdl_dev_addr(Rest, 0, 0, Key bsr 3, F@_1, F@_2, F@_3, F@_4, F@_5, TrUserData);
+                1 -> skip_64_sdl_dev_addr(Rest, 0, 0, Key bsr 3, F@_1, F@_2, F@_3, F@_4, F@_5, TrUserData);
+                2 -> skip_length_delimited_sdl_dev_addr(Rest, 0, 0, Key bsr 3, F@_1, F@_2, F@_3, F@_4, F@_5, TrUserData);
+                3 -> skip_group_sdl_dev_addr(Rest, 0, 0, Key bsr 3, F@_1, F@_2, F@_3, F@_4, F@_5, TrUserData);
+                5 -> skip_32_sdl_dev_addr(Rest, 0, 0, Key bsr 3, F@_1, F@_2, F@_3, F@_4, F@_5, TrUserData)
             end
     end;
-dg_read_field_def_sdl_dev_addr(<<>>, 0, 0, _, F@_1, F@_2, F@_3, F@_4, _) -> #sdl_dev_addr{network_id = F@_1, mac = F@_2, net_addr = F@_3, net_bit_len = F@_4}.
+dg_read_field_def_sdl_dev_addr(<<>>, 0, 0, _, F@_1, F@_2, F@_3, F@_4, F@_5, _) -> #sdl_dev_addr{network_id = F@_1, mac = F@_2, net_addr = F@_3, net_bit_len = F@_4, network_domain = F@_5}.
 
-d_field_sdl_dev_addr_network_id(<<1:1, X:7, Rest/binary>>, N, Acc, F, F@_1, F@_2, F@_3, F@_4, TrUserData) when N < 57 -> d_field_sdl_dev_addr_network_id(Rest, N + 7, X bsl N + Acc, F, F@_1, F@_2, F@_3, F@_4, TrUserData);
-d_field_sdl_dev_addr_network_id(<<0:1, X:7, Rest/binary>>, N, Acc, F, _, F@_2, F@_3, F@_4, TrUserData) ->
+d_field_sdl_dev_addr_network_id(<<1:1, X:7, Rest/binary>>, N, Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, TrUserData) when N < 57 -> d_field_sdl_dev_addr_network_id(Rest, N + 7, X bsl N + Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, TrUserData);
+d_field_sdl_dev_addr_network_id(<<0:1, X:7, Rest/binary>>, N, Acc, F, _, F@_2, F@_3, F@_4, F@_5, TrUserData) ->
     {NewFValue, RestF} = {id((X bsl N + Acc) band 4294967295, TrUserData), Rest},
-    dfp_read_field_def_sdl_dev_addr(RestF, 0, 0, F, NewFValue, F@_2, F@_3, F@_4, TrUserData).
+    dfp_read_field_def_sdl_dev_addr(RestF, 0, 0, F, NewFValue, F@_2, F@_3, F@_4, F@_5, TrUserData).
 
-d_field_sdl_dev_addr_mac(<<1:1, X:7, Rest/binary>>, N, Acc, F, F@_1, F@_2, F@_3, F@_4, TrUserData) when N < 57 -> d_field_sdl_dev_addr_mac(Rest, N + 7, X bsl N + Acc, F, F@_1, F@_2, F@_3, F@_4, TrUserData);
-d_field_sdl_dev_addr_mac(<<0:1, X:7, Rest/binary>>, N, Acc, F, F@_1, _, F@_3, F@_4, TrUserData) ->
+d_field_sdl_dev_addr_mac(<<1:1, X:7, Rest/binary>>, N, Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, TrUserData) when N < 57 -> d_field_sdl_dev_addr_mac(Rest, N + 7, X bsl N + Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, TrUserData);
+d_field_sdl_dev_addr_mac(<<0:1, X:7, Rest/binary>>, N, Acc, F, F@_1, _, F@_3, F@_4, F@_5, TrUserData) ->
     {NewFValue, RestF} = begin Len = X bsl N + Acc, <<Bytes:Len/binary, Rest2/binary>> = Rest, Bytes2 = binary:copy(Bytes), {id(Bytes2, TrUserData), Rest2} end,
-    dfp_read_field_def_sdl_dev_addr(RestF, 0, 0, F, F@_1, NewFValue, F@_3, F@_4, TrUserData).
+    dfp_read_field_def_sdl_dev_addr(RestF, 0, 0, F, F@_1, NewFValue, F@_3, F@_4, F@_5, TrUserData).
 
-d_field_sdl_dev_addr_net_addr(<<1:1, X:7, Rest/binary>>, N, Acc, F, F@_1, F@_2, F@_3, F@_4, TrUserData) when N < 57 -> d_field_sdl_dev_addr_net_addr(Rest, N + 7, X bsl N + Acc, F, F@_1, F@_2, F@_3, F@_4, TrUserData);
-d_field_sdl_dev_addr_net_addr(<<0:1, X:7, Rest/binary>>, N, Acc, F, F@_1, F@_2, _, F@_4, TrUserData) ->
+d_field_sdl_dev_addr_net_addr(<<1:1, X:7, Rest/binary>>, N, Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, TrUserData) when N < 57 -> d_field_sdl_dev_addr_net_addr(Rest, N + 7, X bsl N + Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, TrUserData);
+d_field_sdl_dev_addr_net_addr(<<0:1, X:7, Rest/binary>>, N, Acc, F, F@_1, F@_2, _, F@_4, F@_5, TrUserData) ->
     {NewFValue, RestF} = {id((X bsl N + Acc) band 4294967295, TrUserData), Rest},
-    dfp_read_field_def_sdl_dev_addr(RestF, 0, 0, F, F@_1, F@_2, NewFValue, F@_4, TrUserData).
+    dfp_read_field_def_sdl_dev_addr(RestF, 0, 0, F, F@_1, F@_2, NewFValue, F@_4, F@_5, TrUserData).
 
-d_field_sdl_dev_addr_net_bit_len(<<1:1, X:7, Rest/binary>>, N, Acc, F, F@_1, F@_2, F@_3, F@_4, TrUserData) when N < 57 -> d_field_sdl_dev_addr_net_bit_len(Rest, N + 7, X bsl N + Acc, F, F@_1, F@_2, F@_3, F@_4, TrUserData);
-d_field_sdl_dev_addr_net_bit_len(<<0:1, X:7, Rest/binary>>, N, Acc, F, F@_1, F@_2, F@_3, _, TrUserData) ->
+d_field_sdl_dev_addr_net_bit_len(<<1:1, X:7, Rest/binary>>, N, Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, TrUserData) when N < 57 -> d_field_sdl_dev_addr_net_bit_len(Rest, N + 7, X bsl N + Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, TrUserData);
+d_field_sdl_dev_addr_net_bit_len(<<0:1, X:7, Rest/binary>>, N, Acc, F, F@_1, F@_2, F@_3, _, F@_5, TrUserData) ->
     {NewFValue, RestF} = {id((X bsl N + Acc) band 4294967295, TrUserData), Rest},
-    dfp_read_field_def_sdl_dev_addr(RestF, 0, 0, F, F@_1, F@_2, F@_3, NewFValue, TrUserData).
+    dfp_read_field_def_sdl_dev_addr(RestF, 0, 0, F, F@_1, F@_2, F@_3, NewFValue, F@_5, TrUserData).
 
-skip_varint_sdl_dev_addr(<<1:1, _:7, Rest/binary>>, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, TrUserData) -> skip_varint_sdl_dev_addr(Rest, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, TrUserData);
-skip_varint_sdl_dev_addr(<<0:1, _:7, Rest/binary>>, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, TrUserData) -> dfp_read_field_def_sdl_dev_addr(Rest, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, TrUserData).
+d_field_sdl_dev_addr_network_domain(<<1:1, X:7, Rest/binary>>, N, Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, TrUserData) when N < 57 -> d_field_sdl_dev_addr_network_domain(Rest, N + 7, X bsl N + Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, TrUserData);
+d_field_sdl_dev_addr_network_domain(<<0:1, X:7, Rest/binary>>, N, Acc, F, F@_1, F@_2, F@_3, F@_4, _, TrUserData) ->
+    {NewFValue, RestF} = begin Len = X bsl N + Acc, <<Bytes:Len/binary, Rest2/binary>> = Rest, Bytes2 = binary:copy(Bytes), {id(Bytes2, TrUserData), Rest2} end,
+    dfp_read_field_def_sdl_dev_addr(RestF, 0, 0, F, F@_1, F@_2, F@_3, F@_4, NewFValue, TrUserData).
 
-skip_length_delimited_sdl_dev_addr(<<1:1, X:7, Rest/binary>>, N, Acc, F, F@_1, F@_2, F@_3, F@_4, TrUserData) when N < 57 -> skip_length_delimited_sdl_dev_addr(Rest, N + 7, X bsl N + Acc, F, F@_1, F@_2, F@_3, F@_4, TrUserData);
-skip_length_delimited_sdl_dev_addr(<<0:1, X:7, Rest/binary>>, N, Acc, F, F@_1, F@_2, F@_3, F@_4, TrUserData) ->
+skip_varint_sdl_dev_addr(<<1:1, _:7, Rest/binary>>, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, TrUserData) -> skip_varint_sdl_dev_addr(Rest, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, TrUserData);
+skip_varint_sdl_dev_addr(<<0:1, _:7, Rest/binary>>, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, TrUserData) -> dfp_read_field_def_sdl_dev_addr(Rest, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, TrUserData).
+
+skip_length_delimited_sdl_dev_addr(<<1:1, X:7, Rest/binary>>, N, Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, TrUserData) when N < 57 -> skip_length_delimited_sdl_dev_addr(Rest, N + 7, X bsl N + Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, TrUserData);
+skip_length_delimited_sdl_dev_addr(<<0:1, X:7, Rest/binary>>, N, Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, TrUserData) ->
     Length = X bsl N + Acc,
     <<_:Length/binary, Rest2/binary>> = Rest,
-    dfp_read_field_def_sdl_dev_addr(Rest2, 0, 0, F, F@_1, F@_2, F@_3, F@_4, TrUserData).
+    dfp_read_field_def_sdl_dev_addr(Rest2, 0, 0, F, F@_1, F@_2, F@_3, F@_4, F@_5, TrUserData).
 
-skip_group_sdl_dev_addr(Bin, _, Z2, FNum, F@_1, F@_2, F@_3, F@_4, TrUserData) ->
+skip_group_sdl_dev_addr(Bin, _, Z2, FNum, F@_1, F@_2, F@_3, F@_4, F@_5, TrUserData) ->
     {_, Rest} = read_group(Bin, FNum),
-    dfp_read_field_def_sdl_dev_addr(Rest, 0, Z2, FNum, F@_1, F@_2, F@_3, F@_4, TrUserData).
+    dfp_read_field_def_sdl_dev_addr(Rest, 0, Z2, FNum, F@_1, F@_2, F@_3, F@_4, F@_5, TrUserData).
 
-skip_32_sdl_dev_addr(<<_:32, Rest/binary>>, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, TrUserData) -> dfp_read_field_def_sdl_dev_addr(Rest, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, TrUserData).
+skip_32_sdl_dev_addr(<<_:32, Rest/binary>>, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, TrUserData) -> dfp_read_field_def_sdl_dev_addr(Rest, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, TrUserData).
 
-skip_64_sdl_dev_addr(<<_:64, Rest/binary>>, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, TrUserData) -> dfp_read_field_def_sdl_dev_addr(Rest, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, TrUserData).
+skip_64_sdl_dev_addr(<<_:64, Rest/binary>>, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, TrUserData) -> dfp_read_field_def_sdl_dev_addr(Rest, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, TrUserData).
 
 decode_msg_sdl_empty(Bin, TrUserData) -> dfp_read_field_def_sdl_empty(Bin, 0, 0, 0, TrUserData).
 
@@ -1248,59 +1285,68 @@ skip_32_sdl_empty(<<_:32, Rest/binary>>, Z1, Z2, F, TrUserData) -> dfp_read_fiel
 
 skip_64_sdl_empty(<<_:64, Rest/binary>>, Z1, Z2, F, TrUserData) -> dfp_read_field_def_sdl_empty(Rest, Z1, Z2, F, TrUserData).
 
-decode_msg_sdl_register_super(Bin, TrUserData) -> dfp_read_field_def_sdl_register_super(Bin, 0, 0, 0, id(0, TrUserData), id(<<>>, TrUserData), id(<<>>, TrUserData), id(undefined, TrUserData), id(<<>>, TrUserData), id(<<>>, TrUserData), TrUserData).
+decode_msg_sdl_register_super(Bin, TrUserData) ->
+    dfp_read_field_def_sdl_register_super(Bin, 0, 0, 0, id(0, TrUserData), id(<<>>, TrUserData), id(<<>>, TrUserData), id(undefined, TrUserData), id(<<>>, TrUserData), id(<<>>, TrUserData), id(<<>>, TrUserData), id(<<>>, TrUserData), TrUserData).
 
-dfp_read_field_def_sdl_register_super(<<8, Rest/binary>>, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData) -> d_field_sdl_register_super_version(Rest, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData);
-dfp_read_field_def_sdl_register_super(<<18, Rest/binary>>, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData) -> d_field_sdl_register_super_installed_channel(Rest, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData);
-dfp_read_field_def_sdl_register_super(<<26, Rest/binary>>, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData) -> d_field_sdl_register_super_client_id(Rest, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData);
-dfp_read_field_def_sdl_register_super(<<34, Rest/binary>>, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData) -> d_field_sdl_register_super_dev_addr(Rest, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData);
-dfp_read_field_def_sdl_register_super(<<42, Rest/binary>>, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData) -> d_field_sdl_register_super_pub_key(Rest, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData);
-dfp_read_field_def_sdl_register_super(<<50, Rest/binary>>, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData) -> d_field_sdl_register_super_token(Rest, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData);
-dfp_read_field_def_sdl_register_super(<<>>, 0, 0, _, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, _) -> #sdl_register_super{version = F@_1, installed_channel = F@_2, client_id = F@_3, dev_addr = F@_4, pub_key = F@_5, token = F@_6};
-dfp_read_field_def_sdl_register_super(Other, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData) -> dg_read_field_def_sdl_register_super(Other, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData).
+dfp_read_field_def_sdl_register_super(<<8, Rest/binary>>, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData) -> d_field_sdl_register_super_version(Rest, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData);
+dfp_read_field_def_sdl_register_super(<<18, Rest/binary>>, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData) ->
+    d_field_sdl_register_super_installed_channel(Rest, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData);
+dfp_read_field_def_sdl_register_super(<<26, Rest/binary>>, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData) -> d_field_sdl_register_super_client_id(Rest, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData);
+dfp_read_field_def_sdl_register_super(<<34, Rest/binary>>, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData) -> d_field_sdl_register_super_dev_addr(Rest, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData);
+dfp_read_field_def_sdl_register_super(<<42, Rest/binary>>, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData) -> d_field_sdl_register_super_pub_key(Rest, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData);
+dfp_read_field_def_sdl_register_super(<<50, Rest/binary>>, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData) -> d_field_sdl_register_super_token(Rest, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData);
+dfp_read_field_def_sdl_register_super(<<58, Rest/binary>>, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData) -> d_field_sdl_register_super_network_code(Rest, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData);
+dfp_read_field_def_sdl_register_super(<<66, Rest/binary>>, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData) -> d_field_sdl_register_super_hostname(Rest, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData);
+dfp_read_field_def_sdl_register_super(<<>>, 0, 0, _, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, _) ->
+    #sdl_register_super{version = F@_1, installed_channel = F@_2, client_id = F@_3, dev_addr = F@_4, pub_key = F@_5, token = F@_6, network_code = F@_7, hostname = F@_8};
+dfp_read_field_def_sdl_register_super(Other, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData) -> dg_read_field_def_sdl_register_super(Other, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData).
 
-dg_read_field_def_sdl_register_super(<<1:1, X:7, Rest/binary>>, N, Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData) when N < 32 - 7 ->
-    dg_read_field_def_sdl_register_super(Rest, N + 7, X bsl N + Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData);
-dg_read_field_def_sdl_register_super(<<0:1, X:7, Rest/binary>>, N, Acc, _, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData) ->
+dg_read_field_def_sdl_register_super(<<1:1, X:7, Rest/binary>>, N, Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData) when N < 32 - 7 ->
+    dg_read_field_def_sdl_register_super(Rest, N + 7, X bsl N + Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData);
+dg_read_field_def_sdl_register_super(<<0:1, X:7, Rest/binary>>, N, Acc, _, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData) ->
     Key = X bsl N + Acc,
     case Key of
-        8 -> d_field_sdl_register_super_version(Rest, 0, 0, 0, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData);
-        18 -> d_field_sdl_register_super_installed_channel(Rest, 0, 0, 0, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData);
-        26 -> d_field_sdl_register_super_client_id(Rest, 0, 0, 0, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData);
-        34 -> d_field_sdl_register_super_dev_addr(Rest, 0, 0, 0, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData);
-        42 -> d_field_sdl_register_super_pub_key(Rest, 0, 0, 0, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData);
-        50 -> d_field_sdl_register_super_token(Rest, 0, 0, 0, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData);
+        8 -> d_field_sdl_register_super_version(Rest, 0, 0, 0, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData);
+        18 -> d_field_sdl_register_super_installed_channel(Rest, 0, 0, 0, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData);
+        26 -> d_field_sdl_register_super_client_id(Rest, 0, 0, 0, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData);
+        34 -> d_field_sdl_register_super_dev_addr(Rest, 0, 0, 0, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData);
+        42 -> d_field_sdl_register_super_pub_key(Rest, 0, 0, 0, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData);
+        50 -> d_field_sdl_register_super_token(Rest, 0, 0, 0, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData);
+        58 -> d_field_sdl_register_super_network_code(Rest, 0, 0, 0, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData);
+        66 -> d_field_sdl_register_super_hostname(Rest, 0, 0, 0, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData);
         _ ->
             case Key band 7 of
-                0 -> skip_varint_sdl_register_super(Rest, 0, 0, Key bsr 3, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData);
-                1 -> skip_64_sdl_register_super(Rest, 0, 0, Key bsr 3, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData);
-                2 -> skip_length_delimited_sdl_register_super(Rest, 0, 0, Key bsr 3, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData);
-                3 -> skip_group_sdl_register_super(Rest, 0, 0, Key bsr 3, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData);
-                5 -> skip_32_sdl_register_super(Rest, 0, 0, Key bsr 3, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData)
+                0 -> skip_varint_sdl_register_super(Rest, 0, 0, Key bsr 3, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData);
+                1 -> skip_64_sdl_register_super(Rest, 0, 0, Key bsr 3, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData);
+                2 -> skip_length_delimited_sdl_register_super(Rest, 0, 0, Key bsr 3, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData);
+                3 -> skip_group_sdl_register_super(Rest, 0, 0, Key bsr 3, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData);
+                5 -> skip_32_sdl_register_super(Rest, 0, 0, Key bsr 3, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData)
             end
     end;
-dg_read_field_def_sdl_register_super(<<>>, 0, 0, _, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, _) -> #sdl_register_super{version = F@_1, installed_channel = F@_2, client_id = F@_3, dev_addr = F@_4, pub_key = F@_5, token = F@_6}.
+dg_read_field_def_sdl_register_super(<<>>, 0, 0, _, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, _) ->
+    #sdl_register_super{version = F@_1, installed_channel = F@_2, client_id = F@_3, dev_addr = F@_4, pub_key = F@_5, token = F@_6, network_code = F@_7, hostname = F@_8}.
 
-d_field_sdl_register_super_version(<<1:1, X:7, Rest/binary>>, N, Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData) when N < 57 -> d_field_sdl_register_super_version(Rest, N + 7, X bsl N + Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData);
-d_field_sdl_register_super_version(<<0:1, X:7, Rest/binary>>, N, Acc, F, _, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData) ->
+d_field_sdl_register_super_version(<<1:1, X:7, Rest/binary>>, N, Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData) when N < 57 ->
+    d_field_sdl_register_super_version(Rest, N + 7, X bsl N + Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData);
+d_field_sdl_register_super_version(<<0:1, X:7, Rest/binary>>, N, Acc, F, _, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData) ->
     {NewFValue, RestF} = {id((X bsl N + Acc) band 4294967295, TrUserData), Rest},
-    dfp_read_field_def_sdl_register_super(RestF, 0, 0, F, NewFValue, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData).
+    dfp_read_field_def_sdl_register_super(RestF, 0, 0, F, NewFValue, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData).
 
-d_field_sdl_register_super_installed_channel(<<1:1, X:7, Rest/binary>>, N, Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData) when N < 57 ->
-    d_field_sdl_register_super_installed_channel(Rest, N + 7, X bsl N + Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData);
-d_field_sdl_register_super_installed_channel(<<0:1, X:7, Rest/binary>>, N, Acc, F, F@_1, _, F@_3, F@_4, F@_5, F@_6, TrUserData) ->
+d_field_sdl_register_super_installed_channel(<<1:1, X:7, Rest/binary>>, N, Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData) when N < 57 ->
+    d_field_sdl_register_super_installed_channel(Rest, N + 7, X bsl N + Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData);
+d_field_sdl_register_super_installed_channel(<<0:1, X:7, Rest/binary>>, N, Acc, F, F@_1, _, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData) ->
     {NewFValue, RestF} = begin Len = X bsl N + Acc, <<Bytes:Len/binary, Rest2/binary>> = Rest, Bytes2 = binary:copy(Bytes), {id(Bytes2, TrUserData), Rest2} end,
-    dfp_read_field_def_sdl_register_super(RestF, 0, 0, F, F@_1, NewFValue, F@_3, F@_4, F@_5, F@_6, TrUserData).
+    dfp_read_field_def_sdl_register_super(RestF, 0, 0, F, F@_1, NewFValue, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData).
 
-d_field_sdl_register_super_client_id(<<1:1, X:7, Rest/binary>>, N, Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData) when N < 57 ->
-    d_field_sdl_register_super_client_id(Rest, N + 7, X bsl N + Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData);
-d_field_sdl_register_super_client_id(<<0:1, X:7, Rest/binary>>, N, Acc, F, F@_1, F@_2, _, F@_4, F@_5, F@_6, TrUserData) ->
+d_field_sdl_register_super_client_id(<<1:1, X:7, Rest/binary>>, N, Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData) when N < 57 ->
+    d_field_sdl_register_super_client_id(Rest, N + 7, X bsl N + Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData);
+d_field_sdl_register_super_client_id(<<0:1, X:7, Rest/binary>>, N, Acc, F, F@_1, F@_2, _, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData) ->
     {NewFValue, RestF} = begin Len = X bsl N + Acc, <<Bytes:Len/binary, Rest2/binary>> = Rest, Bytes2 = binary:copy(Bytes), {id(Bytes2, TrUserData), Rest2} end,
-    dfp_read_field_def_sdl_register_super(RestF, 0, 0, F, F@_1, F@_2, NewFValue, F@_4, F@_5, F@_6, TrUserData).
+    dfp_read_field_def_sdl_register_super(RestF, 0, 0, F, F@_1, F@_2, NewFValue, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData).
 
-d_field_sdl_register_super_dev_addr(<<1:1, X:7, Rest/binary>>, N, Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData) when N < 57 ->
-    d_field_sdl_register_super_dev_addr(Rest, N + 7, X bsl N + Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData);
-d_field_sdl_register_super_dev_addr(<<0:1, X:7, Rest/binary>>, N, Acc, F, F@_1, F@_2, F@_3, Prev, F@_5, F@_6, TrUserData) ->
+d_field_sdl_register_super_dev_addr(<<1:1, X:7, Rest/binary>>, N, Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData) when N < 57 ->
+    d_field_sdl_register_super_dev_addr(Rest, N + 7, X bsl N + Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData);
+d_field_sdl_register_super_dev_addr(<<0:1, X:7, Rest/binary>>, N, Acc, F, F@_1, F@_2, F@_3, Prev, F@_5, F@_6, F@_7, F@_8, TrUserData) ->
     {NewFValue, RestF} = begin Len = X bsl N + Acc, <<Bs:Len/binary, Rest2/binary>> = Rest, {id(decode_msg_sdl_dev_addr(Bs, TrUserData), TrUserData), Rest2} end,
     dfp_read_field_def_sdl_register_super(RestF,
                                           0,
@@ -1314,35 +1360,51 @@ d_field_sdl_register_super_dev_addr(<<0:1, X:7, Rest/binary>>, N, Acc, F, F@_1,
                                           end,
                                           F@_5,
                                           F@_6,
+                                          F@_7,
+                                          F@_8,
                                           TrUserData).
 
-d_field_sdl_register_super_pub_key(<<1:1, X:7, Rest/binary>>, N, Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData) when N < 57 -> d_field_sdl_register_super_pub_key(Rest, N + 7, X bsl N + Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData);
-d_field_sdl_register_super_pub_key(<<0:1, X:7, Rest/binary>>, N, Acc, F, F@_1, F@_2, F@_3, F@_4, _, F@_6, TrUserData) ->
+d_field_sdl_register_super_pub_key(<<1:1, X:7, Rest/binary>>, N, Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData) when N < 57 ->
+    d_field_sdl_register_super_pub_key(Rest, N + 7, X bsl N + Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData);
+d_field_sdl_register_super_pub_key(<<0:1, X:7, Rest/binary>>, N, Acc, F, F@_1, F@_2, F@_3, F@_4, _, F@_6, F@_7, F@_8, TrUserData) ->
     {NewFValue, RestF} = begin Len = X bsl N + Acc, <<Bytes:Len/binary, Rest2/binary>> = Rest, Bytes2 = binary:copy(Bytes), {id(Bytes2, TrUserData), Rest2} end,
-    dfp_read_field_def_sdl_register_super(RestF, 0, 0, F, F@_1, F@_2, F@_3, F@_4, NewFValue, F@_6, TrUserData).
+    dfp_read_field_def_sdl_register_super(RestF, 0, 0, F, F@_1, F@_2, F@_3, F@_4, NewFValue, F@_6, F@_7, F@_8, TrUserData).
 
-d_field_sdl_register_super_token(<<1:1, X:7, Rest/binary>>, N, Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData) when N < 57 -> d_field_sdl_register_super_token(Rest, N + 7, X bsl N + Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData);
-d_field_sdl_register_super_token(<<0:1, X:7, Rest/binary>>, N, Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, _, TrUserData) ->
+d_field_sdl_register_super_token(<<1:1, X:7, Rest/binary>>, N, Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData) when N < 57 ->
+    d_field_sdl_register_super_token(Rest, N + 7, X bsl N + Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData);
+d_field_sdl_register_super_token(<<0:1, X:7, Rest/binary>>, N, Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, _, F@_7, F@_8, TrUserData) ->
     {NewFValue, RestF} = begin Len = X bsl N + Acc, <<Bytes:Len/binary, Rest2/binary>> = Rest, Bytes2 = binary:copy(Bytes), {id(Bytes2, TrUserData), Rest2} end,
-    dfp_read_field_def_sdl_register_super(RestF, 0, 0, F, F@_1, F@_2, F@_3, F@_4, F@_5, NewFValue, TrUserData).
+    dfp_read_field_def_sdl_register_super(RestF, 0, 0, F, F@_1, F@_2, F@_3, F@_4, F@_5, NewFValue, F@_7, F@_8, TrUserData).
 
-skip_varint_sdl_register_super(<<1:1, _:7, Rest/binary>>, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData) -> skip_varint_sdl_register_super(Rest, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData);
-skip_varint_sdl_register_super(<<0:1, _:7, Rest/binary>>, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData) -> dfp_read_field_def_sdl_register_super(Rest, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData).
+d_field_sdl_register_super_network_code(<<1:1, X:7, Rest/binary>>, N, Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData) when N < 57 ->
+    d_field_sdl_register_super_network_code(Rest, N + 7, X bsl N + Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData);
+d_field_sdl_register_super_network_code(<<0:1, X:7, Rest/binary>>, N, Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, _, F@_8, TrUserData) ->
+    {NewFValue, RestF} = begin Len = X bsl N + Acc, <<Bytes:Len/binary, Rest2/binary>> = Rest, Bytes2 = binary:copy(Bytes), {id(Bytes2, TrUserData), Rest2} end,
+    dfp_read_field_def_sdl_register_super(RestF, 0, 0, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, NewFValue, F@_8, TrUserData).
 
-skip_length_delimited_sdl_register_super(<<1:1, X:7, Rest/binary>>, N, Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData) when N < 57 ->
-    skip_length_delimited_sdl_register_super(Rest, N + 7, X bsl N + Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData);
-skip_length_delimited_sdl_register_super(<<0:1, X:7, Rest/binary>>, N, Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData) ->
+d_field_sdl_register_super_hostname(<<1:1, X:7, Rest/binary>>, N, Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData) when N < 57 ->
+    d_field_sdl_register_super_hostname(Rest, N + 7, X bsl N + Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData);
+d_field_sdl_register_super_hostname(<<0:1, X:7, Rest/binary>>, N, Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, _, TrUserData) ->
+    {NewFValue, RestF} = begin Len = X bsl N + Acc, <<Bytes:Len/binary, Rest2/binary>> = Rest, Bytes2 = binary:copy(Bytes), {id(Bytes2, TrUserData), Rest2} end,
+    dfp_read_field_def_sdl_register_super(RestF, 0, 0, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, NewFValue, TrUserData).
+
+skip_varint_sdl_register_super(<<1:1, _:7, Rest/binary>>, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData) -> skip_varint_sdl_register_super(Rest, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData);
+skip_varint_sdl_register_super(<<0:1, _:7, Rest/binary>>, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData) -> dfp_read_field_def_sdl_register_super(Rest, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData).
+
+skip_length_delimited_sdl_register_super(<<1:1, X:7, Rest/binary>>, N, Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData) when N < 57 ->
+    skip_length_delimited_sdl_register_super(Rest, N + 7, X bsl N + Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData);
+skip_length_delimited_sdl_register_super(<<0:1, X:7, Rest/binary>>, N, Acc, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData) ->
     Length = X bsl N + Acc,
     <<_:Length/binary, Rest2/binary>> = Rest,
-    dfp_read_field_def_sdl_register_super(Rest2, 0, 0, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData).
+    dfp_read_field_def_sdl_register_super(Rest2, 0, 0, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData).
 
-skip_group_sdl_register_super(Bin, _, Z2, FNum, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData) ->
+skip_group_sdl_register_super(Bin, _, Z2, FNum, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData) ->
     {_, Rest} = read_group(Bin, FNum),
-    dfp_read_field_def_sdl_register_super(Rest, 0, Z2, FNum, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData).
+    dfp_read_field_def_sdl_register_super(Rest, 0, Z2, FNum, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData).
 
-skip_32_sdl_register_super(<<_:32, Rest/binary>>, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData) -> dfp_read_field_def_sdl_register_super(Rest, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData).
+skip_32_sdl_register_super(<<_:32, Rest/binary>>, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData) -> dfp_read_field_def_sdl_register_super(Rest, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData).
 
-skip_64_sdl_register_super(<<_:64, Rest/binary>>, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData) -> dfp_read_field_def_sdl_register_super(Rest, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, TrUserData).
+skip_64_sdl_register_super(<<_:64, Rest/binary>>, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData) -> dfp_read_field_def_sdl_register_super(Rest, Z1, Z2, F, F@_1, F@_2, F@_3, F@_4, F@_5, F@_6, F@_7, F@_8, TrUserData).
 
 decode_msg_sdl_register_super_ack(Bin, TrUserData) -> dfp_read_field_def_sdl_register_super_ack(Bin, 0, 0, 0, id(undefined, TrUserData), id(<<>>, TrUserData), id(0, TrUserData), id(undefined, TrUserData), id(undefined, TrUserData), TrUserData).
 
@@ -2523,7 +2585,8 @@ merge_msg_sdl_v6_info(#sdl_v6_info{port = PFport, v6 = PFv6}, #sdl_v6_info{port
                      end}.
 
 -compile({nowarn_unused_function,merge_msg_sdl_dev_addr/3}).
-merge_msg_sdl_dev_addr(#sdl_dev_addr{network_id = PFnetwork_id, mac = PFmac, net_addr = PFnet_addr, net_bit_len = PFnet_bit_len}, #sdl_dev_addr{network_id = NFnetwork_id, mac = NFmac, net_addr = NFnet_addr, net_bit_len = NFnet_bit_len}, _) ->
+merge_msg_sdl_dev_addr(#sdl_dev_addr{network_id = PFnetwork_id, mac = PFmac, net_addr = PFnet_addr, net_bit_len = PFnet_bit_len, network_domain = PFnetwork_domain},
+                       #sdl_dev_addr{network_id = NFnetwork_id, mac = NFmac, net_addr = NFnet_addr, net_bit_len = NFnet_bit_len, network_domain = NFnetwork_domain}, _) ->
     #sdl_dev_addr{network_id =
                       if NFnetwork_id =:= undefined -> PFnetwork_id;
                          true -> NFnetwork_id
@@ -2539,14 +2602,19 @@ merge_msg_sdl_dev_addr(#sdl_dev_addr{network_id = PFnetwork_id, mac = PFmac, net
                   net_bit_len =
                       if NFnet_bit_len =:= undefined -> PFnet_bit_len;
                          true -> NFnet_bit_len
+                      end,
+                  network_domain =
+                      if NFnetwork_domain =:= undefined -> PFnetwork_domain;
+                         true -> NFnetwork_domain
                       end}.
 
 -compile({nowarn_unused_function,merge_msg_sdl_empty/3}).
 merge_msg_sdl_empty(_Prev, New, _TrUserData) -> New.
 
 -compile({nowarn_unused_function,merge_msg_sdl_register_super/3}).
-merge_msg_sdl_register_super(#sdl_register_super{version = PFversion, installed_channel = PFinstalled_channel, client_id = PFclient_id, dev_addr = PFdev_addr, pub_key = PFpub_key, token = PFtoken},
-                             #sdl_register_super{version = NFversion, installed_channel = NFinstalled_channel, client_id = NFclient_id, dev_addr = NFdev_addr, pub_key = NFpub_key, token = NFtoken}, TrUserData) ->
+merge_msg_sdl_register_super(#sdl_register_super{version = PFversion, installed_channel = PFinstalled_channel, client_id = PFclient_id, dev_addr = PFdev_addr, pub_key = PFpub_key, token = PFtoken, network_code = PFnetwork_code,
+                                                 hostname = PFhostname},
+                             #sdl_register_super{version = NFversion, installed_channel = NFinstalled_channel, client_id = NFclient_id, dev_addr = NFdev_addr, pub_key = NFpub_key, token = NFtoken, network_code = NFnetwork_code, hostname = NFhostname}, TrUserData) ->
     #sdl_register_super{version =
                             if NFversion =:= undefined -> PFversion;
                                true -> NFversion
@@ -2571,6 +2639,14 @@ merge_msg_sdl_register_super(#sdl_register_super{version = PFversion, installed_
                         token =
                             if NFtoken =:= undefined -> PFtoken;
                                true -> NFtoken
+                            end,
+                        network_code =
+                            if NFnetwork_code =:= undefined -> PFnetwork_code;
+                               true -> NFnetwork_code
+                            end,
+                        hostname =
+                            if NFhostname =:= undefined -> PFhostname;
+                               true -> NFhostname
                             end}.
 
 -compile({nowarn_unused_function,merge_msg_sdl_register_super_ack/3}).
@@ -2916,7 +2992,7 @@ v_submsg_sdl_dev_addr(Msg, Path, TrUserData) -> v_msg_sdl_dev_addr(Msg, Path, Tr
 
 -compile({nowarn_unused_function,v_msg_sdl_dev_addr/3}).
 -dialyzer({nowarn_function,v_msg_sdl_dev_addr/3}).
-v_msg_sdl_dev_addr(#sdl_dev_addr{network_id = F1, mac = F2, net_addr = F3, net_bit_len = F4}, Path, TrUserData) ->
+v_msg_sdl_dev_addr(#sdl_dev_addr{network_id = F1, mac = F2, net_addr = F3, net_bit_len = F4, network_domain = F5}, Path, TrUserData) ->
     if F1 == undefined -> ok;
        true -> v_type_uint32(F1, [network_id | Path], TrUserData)
     end,
@@ -2929,6 +3005,9 @@ v_msg_sdl_dev_addr(#sdl_dev_addr{network_id = F1, mac = F2, net_addr = F3, net_b
     if F4 == undefined -> ok;
        true -> v_type_uint32(F4, [net_bit_len | Path], TrUserData)
     end,
+    if F5 == undefined -> ok;
+       true -> v_type_string(F5, [network_domain | Path], TrUserData)
+    end,
     ok;
 v_msg_sdl_dev_addr(X, Path, _TrUserData) -> mk_type_error({expected_msg, sdl_dev_addr}, X, Path).
 
@@ -2939,7 +3018,7 @@ v_msg_sdl_empty(X, Path, _TrUserData) -> mk_type_error({expected_msg, sdl_empty}
 
 -compile({nowarn_unused_function,v_msg_sdl_register_super/3}).
 -dialyzer({nowarn_function,v_msg_sdl_register_super/3}).
-v_msg_sdl_register_super(#sdl_register_super{version = F1, installed_channel = F2, client_id = F3, dev_addr = F4, pub_key = F5, token = F6}, Path, TrUserData) ->
+v_msg_sdl_register_super(#sdl_register_super{version = F1, installed_channel = F2, client_id = F3, dev_addr = F4, pub_key = F5, token = F6, network_code = F7, hostname = F8}, Path, TrUserData) ->
     if F1 == undefined -> ok;
        true -> v_type_uint32(F1, [version | Path], TrUserData)
     end,
@@ -2958,6 +3037,12 @@ v_msg_sdl_register_super(#sdl_register_super{version = F1, installed_channel = F
     if F6 == undefined -> ok;
        true -> v_type_string(F6, [token | Path], TrUserData)
     end,
+    if F7 == undefined -> ok;
+       true -> v_type_string(F7, [network_code | Path], TrUserData)
+    end,
+    if F8 == undefined -> ok;
+       true -> v_type_string(F8, [hostname | Path], TrUserData)
+    end,
     ok;
 v_msg_sdl_register_super(X, Path, _TrUserData) -> mk_type_error({expected_msg, sdl_register_super}, X, Path).
 
@@ -3294,7 +3379,8 @@ get_msg_defs() ->
       [#field{name = network_id, fnum = 1, rnum = 2, type = uint32, occurrence = defaulty, opts = []},
        #field{name = mac, fnum = 2, rnum = 3, type = bytes, occurrence = defaulty, opts = []},
        #field{name = net_addr, fnum = 3, rnum = 4, type = uint32, occurrence = defaulty, opts = []},
-       #field{name = net_bit_len, fnum = 4, rnum = 5, type = uint32, occurrence = defaulty, opts = []}]},
+       #field{name = net_bit_len, fnum = 4, rnum = 5, type = uint32, occurrence = defaulty, opts = []},
+       #field{name = network_domain, fnum = 5, rnum = 6, type = string, occurrence = defaulty, opts = []}]},
      {{msg, sdl_empty}, []},
      {{msg, sdl_register_super},
       [#field{name = version, fnum = 1, rnum = 2, type = uint32, occurrence = defaulty, opts = []},
@@ -3302,7 +3388,9 @@ get_msg_defs() ->
        #field{name = client_id, fnum = 3, rnum = 4, type = string, occurrence = defaulty, opts = []},
        #field{name = dev_addr, fnum = 4, rnum = 5, type = {msg, sdl_dev_addr}, occurrence = defaulty, opts = []},
        #field{name = pub_key, fnum = 5, rnum = 6, type = string, occurrence = defaulty, opts = []},
-       #field{name = token, fnum = 6, rnum = 7, type = string, occurrence = defaulty, opts = []}]},
+       #field{name = token, fnum = 6, rnum = 7, type = string, occurrence = defaulty, opts = []},
+       #field{name = network_code, fnum = 7, rnum = 8, type = string, occurrence = defaulty, opts = []},
+       #field{name = hostname, fnum = 8, rnum = 9, type = string, occurrence = defaulty, opts = []}]},
      {{msg, sdl_register_super_ack},
       [#field{name = dev_addr, fnum = 1, rnum = 2, type = {msg, sdl_dev_addr}, occurrence = defaulty, opts = []},
        #field{name = aes_key, fnum = 2, rnum = 3, type = bytes, occurrence = defaulty, opts = []},
@@ -3436,7 +3524,8 @@ find_msg_def(sdl_dev_addr) ->
     [#field{name = network_id, fnum = 1, rnum = 2, type = uint32, occurrence = defaulty, opts = []},
      #field{name = mac, fnum = 2, rnum = 3, type = bytes, occurrence = defaulty, opts = []},
      #field{name = net_addr, fnum = 3, rnum = 4, type = uint32, occurrence = defaulty, opts = []},
-     #field{name = net_bit_len, fnum = 4, rnum = 5, type = uint32, occurrence = defaulty, opts = []}];
+     #field{name = net_bit_len, fnum = 4, rnum = 5, type = uint32, occurrence = defaulty, opts = []},
+     #field{name = network_domain, fnum = 5, rnum = 6, type = string, occurrence = defaulty, opts = []}];
 find_msg_def(sdl_empty) -> [];
 find_msg_def(sdl_register_super) ->
     [#field{name = version, fnum = 1, rnum = 2, type = uint32, occurrence = defaulty, opts = []},
@@ -3444,7 +3533,9 @@ find_msg_def(sdl_register_super) ->
      #field{name = client_id, fnum = 3, rnum = 4, type = string, occurrence = defaulty, opts = []},
      #field{name = dev_addr, fnum = 4, rnum = 5, type = {msg, sdl_dev_addr}, occurrence = defaulty, opts = []},
      #field{name = pub_key, fnum = 5, rnum = 6, type = string, occurrence = defaulty, opts = []},
-     #field{name = token, fnum = 6, rnum = 7, type = string, occurrence = defaulty, opts = []}];
+     #field{name = token, fnum = 6, rnum = 7, type = string, occurrence = defaulty, opts = []},
+     #field{name = network_code, fnum = 7, rnum = 8, type = string, occurrence = defaulty, opts = []},
+     #field{name = hostname, fnum = 8, rnum = 9, type = string, occurrence = defaulty, opts = []}];
 find_msg_def(sdl_register_super_ack) ->
     [#field{name = dev_addr, fnum = 1, rnum = 2, type = {msg, sdl_dev_addr}, occurrence = defaulty, opts = []},
      #field{name = aes_key, fnum = 2, rnum = 3, type = bytes, occurrence = defaulty, opts = []},
diff --git a/apps/sdlan/src/sdlan_stun.erl b/apps/sdlan/src/sdlan_stun.erl
index 16cc9ee..f45da2d 100644
--- a/apps/sdlan/src/sdlan_stun.erl
+++ b/apps/sdlan/src/sdlan_stun.erl
@@ -103,7 +103,7 @@ handle_info({udp, Sock, Ip, Port, <<?PACKET_STUN_REQUEST:8, Body/binary>>}, Stat
 
     case sdlan_network:get_pid(NetworkId) of
         undefined ->
-            lager:debug("call me here stun request 11: ~p", [NetworkId]),
+            lager:debug("[sdlan_stun] stun_request network_id: ~p, client_id: ~p, not found", [NetworkId, ClientId]),
             {noreply, State};
         NetworkPid when is_pid(NetworkPid) ->
             sdlan_network:update_hole(NetworkPid, ClientId, Mac, {Ip, Port}, NatType, V6Info),
@@ -111,7 +111,7 @@ handle_info({udp, Sock, Ip, Port, <<?PACKET_STUN_REQUEST:8, Body/binary>>}, Stat
                 cookie = Cookie
             }),
             ok = gen_udp:send(Sock, Ip, Port, <<?PACKET_STUN_REPLY, StunReply/binary>>),
-            lager:debug("call me here stun request 12"),
+            lager:debug("[sdlan_stun] stun_request network_id: ~p, client_id: ~p, hole: ~p", [NetworkId, ClientId, {Ip, Port}]),
             {noreply, State}
     end;
 
diff --git a/apps/sdlan/src/sdlan_sup.erl b/apps/sdlan/src/sdlan_sup.erl
index fad7687..1361b3e 100644
--- a/apps/sdlan/src/sdlan_sup.erl
+++ b/apps/sdlan/src/sdlan_sup.erl
@@ -29,6 +29,14 @@ init([]) ->
     SupFlags = #{strategy => one_for_one, intensity => 1000, period => 3600},
 
     Specs = [
+        #{
+            id => dns_proxy_sup,
+            start => {dns_proxy_sup, start_link, []},
+            restart => permanent,
+            shutdown => 2000,
+            type => supervisor,
+            modules => ['dns_proxy_sup']
+        },
         #{
             id => sdlan_network_coordinator,
             start => {sdlan_network_coordinator, start_link, []},
diff --git a/config/sys-dev.config b/config/sys-dev.config
index e29ade5..d6cee1f 100644
--- a/config/sys-dev.config
+++ b/config/sys-dev.config
@@ -23,6 +23,12 @@
 
     % {stun_servers, [{'sdlan_stun:2:1', 1265}, {'sdlan_stun:2:2', 1266}]},
 
+    %% 公共的dns域名解析服务
+    {public_dns_servers, [
+      {{114, 114, 114, 114}, 53},
+      {{8,8,8,8}, 53}
+    ]},
+
     {pools, [
       %% mysql连接池配置
       {mysql_sdlan,
@@ -37,6 +43,11 @@
           {database, "sdlan"},
           {queries, [<<"set names utf8">>]}
         ]
+      },
+
+      {dns_resolver_pool,
+        [{size, 20}, {max_overflow, 100}, {worker_module, dns_resolver}],
+        []
       }
     ]},
 
diff --git a/config/sys-prod.config b/config/sys-prod.config
index eb26687..c798636 100644
--- a/config/sys-prod.config
+++ b/config/sys-prod.config
@@ -23,6 +23,12 @@
 
     % {stun_servers, [{'sdlan_stun:2:1', 1265}, {'sdlan_stun:2:2', 1266}]},
 
+    %% 公共的dns域名解析服务
+    {public_dns_servers, [
+      {{114, 114, 114, 114}, 53},
+      {{8,8,8,8}, 53}
+    ]},
+
     {pools, [
       %% mysql连接池配置
       {mysql_sdlan,
@@ -37,7 +43,13 @@
           {database, "sdlan"},
           {queries, [<<"set names utf8">>]}
         ]
+      },
+
+      {dns_resolver_pool,
+        [{size, 20}, {max_overflow, 100}, {worker_module, dns_resolver}],
+        []
       }
+
     ]},
 
     {api_url, "https://punchnet.aioe.tech/api/"}
diff --git a/message.proto b/message.proto
index ddc66e6..96eb93c 100644
--- a/message.proto
+++ b/message.proto
@@ -19,6 +19,7 @@ message SDLDevAddr {
     bytes mac = 2;
     uint32 net_addr = 3;
     uint32 net_bit_len = 4;
+    string network_domain = 5;
 }
 
 // tcp通讯消息
@@ -33,6 +34,8 @@ message SDLRegisterSuper {
     SDLDevAddr dev_addr = 4;
     string pub_key = 5;
     string token = 6;
+    string network_code = 7;
+    string hostname = 8;
 }
 
 message SDLRegisterSuperAck {
diff --git a/rebar.config b/rebar.config
index 3c9e869..19b784d 100644
--- a/rebar.config
+++ b/rebar.config
@@ -2,13 +2,14 @@
 {deps, [
     {poolboy, ".*", {git, "https://github.com/devinus/poolboy.git", {tag, "1.5.1"}}},
     {hackney, ".*", {git, "https://github.com/benoitc/hackney.git", {tag, "1.16.0"}}},
-    {sync, ".*", {git, "https://github.com/rustyio/sync.git", {branch, "master"}}},
-    {esockd, ".*", {git, "https://github.com/emqx/esockd.git", {tag, "v5.7.3"}}},
     {jiffy, ".*", {git, "https://github.com/davisp/jiffy.git", {tag, "1.1.1"}}},
     {cowboy, ".*", {git, "https://github.com/ninenines/cowboy.git", {tag, "2.12.0"}}},
     {mysql, ".*", {git, "https://github.com/mysql-otp/mysql-otp", {tag, "1.8.0"}}},
     {gpb, ".*", {git, "https://github.com/tomas-abrahamsson/gpb.git", {tag, "4.21.1"}}},
     {throttle, ".*", {git, "https://github.com/lambdaclass/throttle.git", {tag, "0.3.0"}}},
+    {dns_erlang, ".*", {git, "https://github.com/dnsimple/dns_erlang.git", {tag, "v4.4.0"}}},
+    {pkt, ".*", {git, "https://github.com/msantos/pkt.git", {tag, "0.6.0"}}},
+    {sync, ".*", {git, "https://github.com/rustyio/sync.git", {branch, "master"}}},
     {parse_trans, ".*", {git, "https://github.com/uwiger/parse_trans", {tag, "3.0.0"}}},
     {lager, ".*", {git,"https://github.com/erlang-lager/lager.git", {tag, "3.9.2"}}}
 ]}.
diff --git a/rebar.lock b/rebar.lock
index 7566f8a..6fb10ed 100644
--- a/rebar.lock
+++ b/rebar.lock
@@ -1,5 +1,6 @@
 {"1.2.0",
-[{<<"certifi">>,{pkg,<<"certifi">>,<<"2.5.2">>},1},
+[{<<"base32">>,{pkg,<<"base32">>,<<"1.0.0">>},2},
+ {<<"certifi">>,{pkg,<<"certifi">>,<<"2.5.2">>},1},
  {<<"cowboy">>,
   {git,"https://github.com/ninenines/cowboy.git",
        {ref,"3ea8395eb8f53a57acb5d3c00b99c70296e7cdbd"}},
@@ -8,9 +9,13 @@
   {git,"https://github.com/ninenines/cowlib",
        {ref,"1eb7f4293a652adcfe43b1835d22c58d8def839f"}},
   1},
- {<<"esockd">>,
-  {git,"https://github.com/emqx/esockd.git",
-       {ref,"d9ce4024cc42a65e9a05001997031e743442f955"}},
+ {<<"dns_erlang">>,
+  {git,"https://github.com/dnsimple/dns_erlang.git",
+       {ref,"e1149a2dd6f49c6560aa245bc6f3d40a5cbe70e1"}},
+  1},
+ {<<"dns_proxy">>,
+  {git,"https://gitea.s5s8.com/anlicheng/dns_proxy.git",
+       {ref,"5ed832359e42ec99d148bf2ada1729b540017ab8"}},
   0},
  {<<"fs">>,{pkg,<<"fs">>,<<"6.1.1">>},1},
  {<<"goldrush">>,{pkg,<<"goldrush">>,<<"0.1.9">>},1},
@@ -41,6 +46,10 @@
   {git,"https://github.com/uwiger/parse_trans",
        {ref,"6f3645afb43c7c57d61b54ef59aecab288ce1013"}},
   0},
+ {<<"pkt">>,
+  {git,"https://github.com/msantos/pkt.git",
+       {ref,"67a4a14f596fded5ad5f2d8f94318faa8ad2c288"}},
+  1},
  {<<"poolboy">>,
   {git,"https://github.com/devinus/poolboy.git",
        {ref,"3bb48a893ff5598f7c73731ac17545206d259fac"}},
@@ -52,7 +61,7 @@
  {<<"ssl_verify_fun">>,{pkg,<<"ssl_verify_fun">>,<<"1.1.6">>},1},
  {<<"sync">>,
   {git,"https://github.com/rustyio/sync.git",
-       {ref,"7dc303ed4ce8d26db82e171dbbd7c41067852c65"}},
+       {ref,"4e909f69d3d0db21a6d7128b20748819e415c9eb"}},
   0},
  {<<"throttle">>,
   {git,"https://github.com/lambdaclass/throttle.git",
@@ -61,6 +70,7 @@
  {<<"unicode_util_compat">>,{pkg,<<"unicode_util_compat">>,<<"0.5.0">>},2}]}.
 [
 {pkg_hash,[
+ {<<"base32">>, <<"1AB331F812FCC254C8F7D4348E1E5A6F2B9B32B7A260BF2BC3358E3BF14C841A">>},
  {<<"certifi">>, <<"B7CFEAE9D2ED395695DD8201C57A2D019C0C43ECAF8B8BCB9320B40D6662F340">>},
  {<<"fs">>, <<"9D147B944D60CFA48A349F12D06C8EE71128F610C90870BDF9A6773206452ED0">>},
  {<<"goldrush">>, <<"F06E5D5F1277DA5C413E84D5A2924174182FB108DABB39D5EC548B27424CD106">>},
@@ -70,6 +80,7 @@
  {<<"ssl_verify_fun">>, <<"CF344F5692C82D2CD7554F5EC8FD961548D4FD09E7D22F5B62482E5AEAEBD4B0">>},
  {<<"unicode_util_compat">>, <<"8516502659002CEC19E244EBD90D312183064BE95025A319A6C7E89F4BCCD65B">>}]},
 {pkg_hash_ext,[
+ {<<"base32">>, <<"0449285348ED0C4CD83C7198E76C5FD5A0451C4EF18695B9FD43792A503E551A">>},
  {<<"certifi">>, <<"3B3B5F36493004AC3455966991EAF6E768CE9884693D9968055AEEEB1E575040">>},
  {<<"fs">>, <<"EF94E95FFE79916860649FED80AC62B04C322B0BB70F5128144C026B4D171F8B">>},
  {<<"goldrush">>, <<"99CB4128CFFCB3227581E5D4D803D5413FA643F4EB96523F77D9E6937D994CEB">>},