diff --git a/luci-app-nyn/Makefile b/luci-app-nyn/Makefile
new file mode 100644
index 0000000..5988f8f
--- /dev/null
+++ b/luci-app-nyn/Makefile
@@ -0,0 +1,9 @@
+include $(TOPDIR)/rules.mk
+
+LUCI_TITLE:=LuCI support for NYN 802.1x Authentication Client
+LUCI_DEPENDS:=+nyn +luci-base
+
+include $(TOPDIR)/feeds/luci/luci.mk
+
+# call BuildPackage - OpenWrt buildroot signature
+
diff --git a/luci-app-nyn/luasrc/controller/nyn.lua b/luci-app-nyn/luasrc/controller/nyn.lua
new file mode 100644
index 0000000..5cfa638
--- /dev/null
+++ b/luci-app-nyn/luasrc/controller/nyn.lua
@@ -0,0 +1,44 @@
+-- /usr/lib/lua/luci/controller/nyn.lua
+module("luci.controller.nyn", package.seeall)
+
+function index()
+    if not nixio.fs.access("/etc/config/nyn") then
+        return
+    end
+
+    -- Menu
+    entry({"admin", "network", "nyn"}, firstchild(), _("NyN-Client"), 60).dependent = false
+
+    -- Settings
+    entry({"admin", "network", "nyn", "config"}, cbi("nyn"), _("Settings"), 1).leaf = true
+
+    -- Status API
+    entry({"admin", "network", "nyn", "get_status"}, call("act_status")).leaf = true
+end
+
+function act_status()
+    local sys = require "luci.sys"
+    local util = require "luci.util"
+    local status = {}
+
+    -- Get status
+    status.running = (sys.call("pgrep -f nyn >/dev/null") == 0)
+
+    -- Get process info
+    if status.running then
+        status.process_info = util.trim(sys.exec("ps | grep -v grep | grep nyn"))
+    end
+
+    -- Get log
+    local log_file = "/tmp/nyn.log"
+    if nixio.fs.access(log_file) then
+        status.log = util.trim(sys.exec("tail -20 " .. log_file))
+    else
+        status.log = util.trim(sys.exec("logread | grep nyn | tail -10"))
+    end
+
+    luci.http.prepare_content("application/json")
+    luci.http.write_json(status)
+end
+
+
diff --git a/luci-app-nyn/luasrc/model/cbi/nyn.lua b/luci-app-nyn/luasrc/model/cbi/nyn.lua
new file mode 100644
index 0000000..fc13baa
--- /dev/null
+++ b/luci-app-nyn/luasrc/model/cbi/nyn.lua
@@ -0,0 +1,56 @@
+-- /usr/lib/lua/luci/model/cbi/nyn.lua
+
+local m, s, o
+local sys = require "luci.sys"
+
+m = Map("nyn", translate("NYN 802.1x Authentication Client"),
+    translate("Configure 802.1x authentication for network access using NYN client"))
+
+-- Authentication Settings
+s = m:section(TypedSection, "auth", translate("Authentication Settings"))
+s.anonymous = true
+s.addremove = false
+
+-- Service Status
+o = s:option(DummyValue, "_status", translate("Current Status"))
+o.rawhtml = true
+o.cfgvalue = function()
+    local sys = require "luci.sys"
+    local running = sys.call("pgrep nyn >/dev/null") == 0
+
+    if running then
+        return "<span style='color:green;font-weight:bold'>✔ 正在运行中</span>"
+    else
+        return "<span style='color:red;font-weight:bold'>✘ 未运行</span>"
+    end
+end
+
+-- Enable/Disable
+o = s:option(Flag, "enabled", translate("Enable Service"))
+o.rmempty = false
+
+-- Username
+o = s:option(Value, "user", translate("Username"), translate("802.1x authentication username"))
+o.rmempty = false
+
+-- Password
+o = s:option(Value, "password", translate("Password"), translate("802.1x authentication password"))
+o.password = true
+o.rmempty = false
+
+-- Network Device
+o = s:option(ListValue, "device", translate("Network Device"), translate("Network device to use for authentication"))
+o.rmempty = false
+o:value("eth0", "eth0")
+o:value("eth1", "eth1")
+o:value("wan", "WAN")
+
+-- Add network interface
+local interfaces = sys.net.devices()
+for _, iface in ipairs(interfaces) do
+    if iface ~= "lo" then
+        o:value(iface, iface)
+    end
+end
+
+return m
diff --git a/nyn/Makefile b/nyn/Makefile
new file mode 100644
index 0000000..ef50f49
--- /dev/null
+++ b/nyn/Makefile
@@ -0,0 +1,66 @@
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=nyn
+PKG_VERSION:=0.0.3
+PKG_RELEASE:=1
+
+PKG_MAINTAINER:=Dichgrem <brcefy@gmail.com>
+PKG_LICENSE:=MIT
+
+include $(INCLUDE_DIR)/package.mk
+
+define Package/nyn
+  SECTION:=net
+  CATEGORY:=Network
+  TITLE:=NYN 802.1x Authentication Client
+  URL:=https://github.com/diredocks/nyn
+  DEPENDS:=+libpcap
+endef
+
+define Package/nyn/description
+  A 802.1x authentication client for OpenWrt routers.
+  Cross-compiled with musl toolchain for optimal compatibility.
+endef
+
+define Package/nyn/conffiles
+/etc/config/nyn
+/etc/nyn/config.toml
+endef
+
+define Build/Prepare
+endef
+
+define Build/Configure
+endef
+
+define Build/Compile
+endef
+
+define Package/nyn/install
+	$(INSTALL_DIR) $(1)/usr/bin
+	$(INSTALL_DIR) $(1)/etc/config
+	$(INSTALL_DIR) $(1)/etc/init.d
+	$(INSTALL_DIR) $(1)/etc/nyn
+	
+	# Install precompiled binary based on architecture
+	$(if $(CONFIG_TARGET_x86_64),$(INSTALL_BIN) ./files/bin/nyn-x86_64 $(1)/usr/bin/nyn)
+	$(if $(CONFIG_TARGET_armvirt_64),$(INSTALL_BIN) ./files/bin/nyn-aarch64 $(1)/usr/bin/nyn)
+	$(if $(CONFIG_TARGET_bcm27xx_bcm2711),$(INSTALL_BIN) ./files/bin/nyn-aarch64 $(1)/usr/bin/nyn)
+	$(if $(CONFIG_TARGET_ath79_generic),$(INSTALL_BIN) ./files/bin/nyn-mips64 $(1)/usr/bin/nyn)
+	$(if $(CONFIG_TARGET_ramips_mt7621),$(INSTALL_BIN) ./files/bin/nyn-mips64 $(1)/usr/bin/nyn)
+	$(if $(CONFIG_TARGET_mediatek_mt7622),$(INSTALL_BIN) ./files/bin/nyn-aarch64 $(1)/usr/bin/nyn)
+	$(if $(CONFIG_TARGET_rockchip_armv8),$(INSTALL_BIN) ./files/bin/nyn-aarch64 $(1)/usr/bin/nyn)
+	# Fallback - try to detect architecture
+	$(if $(findstring arm,$(ARCH)),$(INSTALL_BIN) ./files/bin/nyn-armv7 $(1)/usr/bin/nyn)
+	$(if $(findstring aarch64,$(ARCH)),$(INSTALL_BIN) ./files/bin/nyn-aarch64 $(1)/usr/bin/nyn)
+	$(if $(findstring mips,$(ARCH)),$(INSTALL_BIN) ./files/bin/nyn-mips64 $(1)/usr/bin/nyn)
+	$(if $(findstring x86_64,$(ARCH)),$(INSTALL_BIN) ./files/bin/nyn-x86_64 $(1)/usr/bin/nyn)
+	$(if $(findstring i386,$(ARCH)),$(INSTALL_BIN) ./files/bin/nyn-i686 $(1)/usr/bin/nyn)
+	
+	$(INSTALL_BIN) ./files/usr/bin/nyn-device-info $(1)/usr/bin/
+	$(INSTALL_CONF) ./files/etc/config/nyn $(1)/etc/config/
+	$(INSTALL_CONF) ./files/etc/nyn/config.toml $(1)/etc/nyn/
+	$(INSTALL_BIN) ./files/etc/init.d/nyn $(1)/etc/init.d/
+endef
+
+$(eval $(call BuildPackage,nyn))
diff --git a/nyn/files/bin/nyn-aarch64 b/nyn/files/bin/nyn-aarch64
new file mode 100644
index 0000000..de35d12
Binary files /dev/null and b/nyn/files/bin/nyn-aarch64 differ
diff --git a/nyn/files/bin/nyn-armv7 b/nyn/files/bin/nyn-armv7
new file mode 100644
index 0000000..cfc838d
Binary files /dev/null and b/nyn/files/bin/nyn-armv7 differ
diff --git a/nyn/files/bin/nyn-i686 b/nyn/files/bin/nyn-i686
new file mode 100644
index 0000000..30b5318
Binary files /dev/null and b/nyn/files/bin/nyn-i686 differ
diff --git a/nyn/files/bin/nyn-mips64 b/nyn/files/bin/nyn-mips64
new file mode 100644
index 0000000..cb3a19b
Binary files /dev/null and b/nyn/files/bin/nyn-mips64 differ
diff --git a/nyn/files/bin/nyn-riscv64 b/nyn/files/bin/nyn-riscv64
new file mode 100644
index 0000000..8f9568a
Binary files /dev/null and b/nyn/files/bin/nyn-riscv64 differ
diff --git a/nyn/files/bin/nyn-x86_64 b/nyn/files/bin/nyn-x86_64
new file mode 100644
index 0000000..c1b7f35
Binary files /dev/null and b/nyn/files/bin/nyn-x86_64 differ
diff --git a/nyn/files/etc/config/nyn b/nyn/files/etc/config/nyn
new file mode 100644
index 0000000..6850b33
--- /dev/null
+++ b/nyn/files/etc/config/nyn
@@ -0,0 +1,16 @@
+config general 'general'
+	option enabled '0'
+	option timeout '1'
+	option retry '5'
+	option schedule_callback '0'
+
+config crypto 'crypto'
+	option win_ver 'r70393861'
+	option client_key 'Oly5D62FaE94W7'
+	option client_version ''
+
+config auth 'auth'
+	option user ''
+	option password ''
+	option device 'eth0'
+	option hardware_description ''
diff --git a/nyn/files/etc/init.d/nyn b/nyn/files/etc/init.d/nyn
new file mode 100644
index 0000000..7b7a3c8
--- /dev/null
+++ b/nyn/files/etc/init.d/nyn
@@ -0,0 +1,41 @@
+#!/bin/sh /etc/rc.common
+
+START=99
+USE_PROCD=1
+
+CONFIG=/etc/nyn/config.toml
+
+start_service() {
+  generate_config
+
+  procd_open_instance
+  procd_set_param command /usr/bin/nyn -config "$CONFIG"
+  procd_set_param respawn
+  procd_close_instance
+}
+
+stop_service() {
+  procd_kill nyn
+}
+
+generate_config() {
+  mkdir -p /etc/nyn
+
+  cat >"$CONFIG" <<EOF
+# Auto-generated by UCI
+
+[general]
+timeout = $(uci -q get nyn.general.timeout)
+retry = $(uci -q get nyn.general.retry)
+schedule_callback = $([ "$(uci -q get nyn.general.schedule_callback)" = "1" ] && echo "true" || echo "false")
+
+[crypto]
+win_ver = "$(uci -q get nyn.crypto.win_ver)"
+client_key = "$(uci -q get nyn.crypto.client_key)"
+
+[[auth]]
+user = "$(uci -q get nyn.auth.user)"
+password = "$(uci -q get nyn.auth.password)"
+device = "$(uci -q get nyn.auth.device)"
+EOF
+}
diff --git a/nyn/files/etc/nyn/config.toml b/nyn/files/etc/nyn/config.toml
new file mode 100644
index 0000000..10728ec
--- /dev/null
+++ b/nyn/files/etc/nyn/config.toml
@@ -0,0 +1,18 @@
+# Default configuration for NYN 802.1x client
+# This file will be generated by UCI system
+
+[general]
+timeout = 1
+retry = 5
+schedule_callback = false
+
+[crypto]
+win_ver = "r70393861"
+client_key = "Oly5D62FaE94W7"
+# client_version = ""
+
+[[auth]]
+user = ""
+password = ""
+device = "eth0"
+# hardware_description = ""
diff --git a/nyn/files/usr/bin/nyn-device-info b/nyn/files/usr/bin/nyn-device-info
new file mode 100644
index 0000000..aa43207
--- /dev/null
+++ b/nyn/files/usr/bin/nyn-device-info
@@ -0,0 +1,29 @@
+#!/bin/sh
+# /usr/bin/nyn-device-info
+# Helper script to get device information for NYN configuration
+
+echo "Available network devices:"
+echo "=========================="
+
+if command -v nyn >/dev/null 2>&1; then
+    nyn -mode info 2>/dev/null | grep -E "(Found|device|hardware_description)" | while read line; do
+        echo "$line"
+    done
+else
+    echo "NYN binary not found. Showing available network interfaces:"
+    for dev in /sys/class/net/*; do
+        if [ -d "$dev" ]; then
+            iface=$(basename "$dev")
+            if [ "$iface" != "lo" ]; then
+                echo "Device: $iface"
+                if [ -f "$dev/address" ]; then
+                    echo "  MAC: $(cat "$dev/address")"
+                fi
+                if [ -f "$dev/operstate" ]; then
+                    echo "  State: $(cat "$dev/operstate")"
+                fi
+                echo ""
+            fi
+        fi
+    done
+fi