diff --git a/Cargo.lock b/Cargo.lock
index 6c14492bc..31092a4df 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -573,7 +573,7 @@ dependencies = [
  "cexpr",
  "clang-sys",
  "clap 2.34.0",
- "env_logger",
+ "env_logger 0.9.3",
  "lazy_static",
  "lazycell",
  "log",
@@ -1091,6 +1091,7 @@ dependencies = [
  "cfb-mode",
  "chacha20poly1305",
  "chrono",
+ "cmd_lib",
  "console-subscriber",
  "crc32fast",
  "criterion",
@@ -1142,7 +1143,7 @@ dependencies = [
  "sha2",
  "shadowsocks",
  "smoltcp",
- "socket2",
+ "socket2 0.5.6",
  "tempfile",
  "thiserror",
  "tokio",
@@ -1163,6 +1164,7 @@ dependencies = [
  "tuic",
  "tuic-quinn",
  "tun",
+ "unix-udp-sock",
  "url",
  "uuid",
  "webpki-roots",
@@ -1177,6 +1179,32 @@ dependencies = [
  "cc",
 ]
 
+[[package]]
+name = "cmd_lib"
+version = "1.9.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e5f4cbdcab51ca635c5b19c85ece4072ea42e0d2360242826a6fc96fb11f0d40"
+dependencies = [
+ "cmd_lib_macros",
+ "env_logger 0.10.2",
+ "faccess",
+ "lazy_static",
+ "log",
+ "os_pipe",
+]
+
+[[package]]
+name = "cmd_lib_macros"
+version = "1.9.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ae881960f7e2a409f91ef0b1c09558cf293031a1d6e8b45f908311f2a43f5fdf"
+dependencies = [
+ "proc-macro-error",
+ "proc-macro2",
+ "quote",
+ "syn 1.0.109",
+]
+
 [[package]]
 name = "coarsetime"
 version = "0.1.34"
@@ -1946,6 +1974,19 @@ dependencies = [
  "termcolor",
 ]
 
+[[package]]
+name = "env_logger"
+version = "0.10.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4cd405aab171cb85d6735e5c8d9db038c17d3ca007a4d2c25f337935c3d90580"
+dependencies = [
+ "humantime",
+ "is-terminal",
+ "log",
+ "regex",
+ "termcolor",
+]
+
 [[package]]
 name = "equivalent"
 version = "1.0.1"
@@ -1982,6 +2023,17 @@ dependencies = [
  "pin-project-lite",
 ]
 
+[[package]]
+name = "faccess"
+version = "0.2.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "59ae66425802d6a903e268ae1a08b8c38ba143520f227a205edf4e9c7e3e26d5"
+dependencies = [
+ "bitflags 1.3.2",
+ "libc",
+ "winapi",
+]
+
 [[package]]
 name = "fallible-iterator"
 version = "0.3.0"
@@ -2726,7 +2778,7 @@ dependencies = [
  "httpdate",
  "itoa",
  "pin-project-lite",
- "socket2",
+ "socket2 0.5.6",
  "tokio",
  "tower-service",
  "tracing",
@@ -2809,7 +2861,7 @@ dependencies = [
  "http-body 1.0.0",
  "hyper 1.2.0",
  "pin-project-lite",
- "socket2",
+ "socket2 0.5.6",
  "tokio",
  "tower",
  "tower-service",
@@ -2997,7 +3049,7 @@ version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b58db92f96b720de98181bbbe63c831e87005ab460c1bf306eb2622b4707997f"
 dependencies = [
- "socket2",
+ "socket2 0.5.6",
  "widestring",
  "windows-sys 0.48.0",
  "winreg",
@@ -3746,6 +3798,16 @@ dependencies = [
  "num-traits",
 ]
 
+[[package]]
+name = "os_pipe"
+version = "1.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "57119c3b893986491ec9aa85056780d3a0f3cf4da7cc09dd3650dbd6c6738fb9"
+dependencies = [
+ "libc",
+ "windows-sys 0.52.0",
+]
+
 [[package]]
 name = "overload"
 version = "0.1.1"
@@ -5022,7 +5084,7 @@ dependencies = [
  "serde_json",
  "serde_urlencoded",
  "shadowsocks-crypto",
- "socket2",
+ "socket2 0.5.6",
  "spin 0.9.8",
  "thiserror",
  "tokio",
@@ -5150,6 +5212,16 @@ dependencies = [
  "managed",
 ]
 
+[[package]]
+name = "socket2"
+version = "0.4.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9f7916fc008ca5542385b89a3d3ce689953c143e9304a9bf8beec1de48994c0d"
+dependencies = [
+ "libc",
+ "winapi",
+]
+
 [[package]]
 name = "socket2"
 version = "0.5.6"
@@ -5513,7 +5585,7 @@ dependencies = [
  "parking_lot 0.12.1",
  "pin-project-lite",
  "signal-hook-registry",
- "socket2",
+ "socket2 0.5.6",
  "tokio-macros",
  "tracing",
  "windows-sys 0.48.0",
@@ -5586,7 +5658,7 @@ dependencies = [
  "log",
  "once_cell",
  "pin-project",
- "socket2",
+ "socket2 0.5.6",
  "tokio",
  "windows-sys 0.48.0",
 ]
@@ -6845,6 +6917,22 @@ dependencies = [
  "subtle",
 ]
 
+[[package]]
+name = "unix-udp-sock"
+version = "0.7.0"
+source = "git+https://github.com/Watfaq/unix-udp-sock.git?rev=cd3e4eca43e6f3be82a2703c3d711b7e18fbfd18#cd3e4eca43e6f3be82a2703c3d711b7e18fbfd18"
+dependencies = [
+ "bytes",
+ "futures-core",
+ "futures-sink",
+ "libc",
+ "pin-project-lite",
+ "socket2 0.4.10",
+ "tokio",
+ "tokio-util",
+ "tracing",
+]
+
 [[package]]
 name = "unsafe-libyaml"
 version = "0.2.11"
diff --git a/clash/tests/data/config/tproxy.yaml b/clash/tests/data/config/tproxy.yaml
new file mode 100644
index 000000000..31839b333
--- /dev/null
+++ b/clash/tests/data/config/tproxy.yaml
@@ -0,0 +1,4 @@
+tproxy-port: 7893
+external-controller: 127.0.0.1:9090
+mode: global
+log-level: debug
\ No newline at end of file
diff --git a/clash_lib/Cargo.toml b/clash_lib/Cargo.toml
index f41f9a76b..f8cfc26b7 100644
--- a/clash_lib/Cargo.toml
+++ b/clash_lib/Cargo.toml
@@ -37,6 +37,8 @@ base64 = "0.22"
 uuid = { version = "1.8.0", features = ["v4", "fast-rng", "macro-diagnostics", "serde"] }
 boring = "4.5.0"
 boring-sys = "4.5.0"
+unix-udp-sock = { git = "https://github.com/Watfaq/unix-udp-sock.git", rev = "cd3e4eca43e6f3be82a2703c3d711b7e18fbfd18"}
+cmd_lib = "1.9.3"
 
 ip_network_table-deps-treebitmap = "0.5.0"
 once_cell = "1.18.0"
diff --git a/clash_lib/src/app/dispatcher/dispatcher_impl.rs b/clash_lib/src/app/dispatcher/dispatcher_impl.rs
index 78427a63c..b339a4972 100644
--- a/clash_lib/src/app/dispatcher/dispatcher_impl.rs
+++ b/clash_lib/src/app/dispatcher/dispatcher_impl.rs
@@ -181,6 +181,7 @@ impl Dispatcher {
 
     /// Dispatch a UDP packet to outbound handler
     /// returns the close sender
+    /// will ignore the source and destination in `Session`
     #[instrument]
     pub fn dispatch_datagram(
         &self,
diff --git a/clash_lib/src/app/inbound/manager.rs b/clash_lib/src/app/inbound/manager.rs
index c68670edf..7428644f4 100644
--- a/clash_lib/src/app/inbound/manager.rs
+++ b/clash_lib/src/app/inbound/manager.rs
@@ -98,6 +98,9 @@ impl InboundManager {
                 ListenerType::Mixed => {
                     ports.mixed_port = Some(x.port);
                 }
+                ListenerType::TProxy => {
+                    ports.tproxy_port = Some(x.port);
+                }
             });
 
         ports
@@ -147,6 +150,20 @@ impl InboundManager {
             );
         }
 
+        if let Some(tproxy_port) = ports.tproxy_port {
+            network_listeners.insert(
+                ListenerType::TProxy,
+                NetworkInboundListener {
+                    name: "TProxy".to_string(),
+                    bind_addr: self.bind_address.clone(),
+                    port: tproxy_port,
+                    listener_type: ListenerType::TProxy,
+                    dispatcher: self.dispatcher.clone(),
+                    authenticator: self.authenticator.clone(),
+                },
+            );
+        }
+
         self.network_listeners = network_listeners;
     }
 }
diff --git a/clash_lib/src/app/inbound/network_listener.rs b/clash_lib/src/app/inbound/network_listener.rs
index 9d3db7ea5..af81d8998 100644
--- a/clash_lib/src/app/inbound/network_listener.rs
+++ b/clash_lib/src/app/inbound/network_listener.rs
@@ -1,7 +1,7 @@
 use crate::common::auth::ThreadSafeAuthenticator;
 use crate::config::internal::config::BindAddress;
 
-use crate::proxy::{http, mixed, socks, AnyInboundListener};
+use crate::proxy::{http, mixed, socks, tproxy, AnyInboundListener};
 
 use crate::proxy::utils::Interface;
 use crate::{Dispatcher, Error, Runner};
@@ -17,6 +17,7 @@ pub enum ListenerType {
     Http,
     Socks5,
     Mixed,
+    TProxy,
 }
 
 pub struct NetworkInboundListener {
@@ -111,6 +112,17 @@ impl NetworkInboundListener {
                 self.dispatcher.clone(),
                 self.authenticator.clone(),
             ),
+
+            ListenerType::TProxy => {
+                #[cfg(any(target_os = "linux", target_os = "android"))]
+                {
+                    tproxy::TProxyListener::new((ip, self.port).into(), self.dispatcher.clone())
+                }
+                #[cfg(not(target_os = "linux"))]
+                {
+                    warn!("tproxy only support linux and android, ignore this config");
+                }
+            }
         };
 
         if listener.handle_tcp() {
diff --git a/clash_lib/src/common/cmd.rs b/clash_lib/src/common/cmd.rs
new file mode 100644
index 000000000..8b1378917
--- /dev/null
+++ b/clash_lib/src/common/cmd.rs
@@ -0,0 +1 @@
+
diff --git a/clash_lib/src/common/mod.rs b/clash_lib/src/common/mod.rs
index 3604b7d55..3a11acd1f 100644
--- a/clash_lib/src/common/mod.rs
+++ b/clash_lib/src/common/mod.rs
@@ -1,4 +1,5 @@
 pub mod auth;
+pub mod cmd;
 pub mod crypto;
 pub mod errors;
 pub mod http;
@@ -7,4 +8,5 @@ pub mod mmdb;
 pub mod timed_future;
 pub mod tls;
 pub mod trie;
+pub mod tunnel_datagram;
 pub mod utils;
diff --git a/clash_lib/src/proxy/tun/datagram.rs b/clash_lib/src/common/tunnel_datagram.rs
similarity index 85%
rename from clash_lib/src/proxy/tun/datagram.rs
rename to clash_lib/src/common/tunnel_datagram.rs
index d8f2ec966..86d6ee68d 100644
--- a/clash_lib/src/proxy/tun/datagram.rs
+++ b/clash_lib/src/common/tunnel_datagram.rs
@@ -1,4 +1,4 @@
-use std::{net::SocketAddr, task::Poll};
+use std::task::Poll;
 
 use futures::{ready, Sink, Stream};
 
@@ -8,38 +8,33 @@ use crate::{
 };
 
 #[derive(Debug)]
-pub struct TunDatagram {
+pub struct TunnelDatagram {
+    // send to tproxy/tun, used for `Stream`
     rx: tokio::sync::mpsc::Receiver<UdpPacket>,
+    // receive from tproxy/tun, used for `Sink`
     tx: tokio::sync::mpsc::Sender<UdpPacket>,
 
     pkt: Option<UdpPacket>,
     flushed: bool,
-    #[allow(unused)]
-    local_addr: SocketAddr,
 }
 
-impl TunDatagram {
+impl TunnelDatagram {
     pub fn new(
-        // send to tun
         tx: tokio::sync::mpsc::Sender<UdpPacket>,
-        // receive from tun
         rx: tokio::sync::mpsc::Receiver<UdpPacket>,
-        // the address of the tun udp socket
-        local_addr: SocketAddr,
     ) -> Self {
         Self {
             rx,
             tx,
             pkt: None,
             flushed: true,
-            local_addr,
         }
     }
 }
 
-impl InboundDatagram<UdpPacket> for TunDatagram {}
+impl InboundDatagram<UdpPacket> for TunnelDatagram {}
 
-impl Stream for TunDatagram {
+impl Stream for TunnelDatagram {
     type Item = UdpPacket;
 
     fn poll_next(
@@ -50,7 +45,7 @@ impl Stream for TunDatagram {
     }
 }
 
-impl Sink<UdpPacket> for TunDatagram {
+impl Sink<UdpPacket> for TunnelDatagram {
     type Error = std::io::Error;
 
     fn poll_ready(
diff --git a/clash_lib/src/config/def.rs b/clash_lib/src/config/def.rs
index 22fb41206..1891f29f5 100644
--- a/clash_lib/src/config/def.rs
+++ b/clash_lib/src/config/def.rs
@@ -374,6 +374,7 @@ pub struct Config {
     ///   device-id: "dev://utun1989"
     /// ```
     pub tun: Option<HashMap<String, Value>>,
+    pub iptables: Iptables,
 }
 
 impl TryFrom<PathBuf> for Config {
@@ -431,6 +432,7 @@ impl Default for Config {
                     .to_owned(),
             ),
             tun: Default::default(),
+            iptables: Default::default(),
         }
     }
 }
@@ -559,6 +561,25 @@ impl Default for Profile {
     }
 }
 
+#[derive(Serialize, Deserialize)]
+#[serde(default)]
+#[serde(rename_all = "kebab-case")]
+pub struct Iptables {
+    enable: bool,
+    inbound_interface: String,
+    bypass: Vec<String>,
+}
+
+impl Default for Iptables {
+    fn default() -> Self {
+        Self {
+            enable: false,
+            inbound_interface: "lo".to_owned(),
+            bypass: vec![],
+        }
+    }
+}
+
 #[cfg(test)]
 mod tests {
     use serde_yaml::Value;
diff --git a/clash_lib/src/config/internal/proxy.rs b/clash_lib/src/config/internal/proxy.rs
index 918e48cff..351626835 100644
--- a/clash_lib/src/config/internal/proxy.rs
+++ b/clash_lib/src/config/internal/proxy.rs
@@ -1,5 +1,6 @@
 use crate::common::utils::default_bool_true;
 use crate::config::utils;
+use crate::proxy::CommonOption;
 use crate::Error;
 use serde::de::value::MapDeserializer;
 use serde::Deserialize;
@@ -116,6 +117,8 @@ impl Display for OutboundProxyProtocol {
 
 #[derive(serde::Serialize, serde::Deserialize, Debug, Default)]
 pub struct OutboundShadowsocks {
+    #[serde(flatten)]
+    pub common_opts: CommonOption,
     pub name: String,
     pub server: String,
     pub port: u16,
@@ -130,6 +133,8 @@ pub struct OutboundShadowsocks {
 
 #[derive(serde::Serialize, serde::Deserialize, Debug, Default)]
 pub struct OutboundSocks5 {
+    #[serde(flatten)]
+    pub common_opts: CommonOption,
     pub name: String,
     pub server: String,
     pub port: u16,
@@ -142,6 +147,8 @@ pub struct OutboundSocks5 {
 
 #[derive(serde::Serialize, serde::Deserialize, Debug, Default)]
 pub struct WsOpt {
+    #[serde(flatten)]
+    pub common_opts: CommonOption,
     pub path: Option<String>,
     pub headers: Option<HashMap<String, String>>,
     pub max_early_data: Option<i32>,
@@ -163,6 +170,8 @@ pub struct GrpcOpt {
 #[derive(serde::Serialize, serde::Deserialize, Debug, Default)]
 #[serde(rename_all = "kebab-case")]
 pub struct OutboundTrojan {
+    #[serde(flatten)]
+    pub common_opts: CommonOption,
     pub name: String,
     pub server: String,
     pub port: u16,
@@ -179,6 +188,8 @@ pub struct OutboundTrojan {
 #[derive(serde::Serialize, serde::Deserialize, Debug, Default)]
 #[serde(rename_all = "kebab-case")]
 pub struct OutboundVmess {
+    #[serde(flatten)]
+    pub common_opts: CommonOption,
     pub name: String,
     pub server: String,
     pub port: u16,
@@ -200,6 +211,8 @@ pub struct OutboundVmess {
 #[derive(serde::Serialize, serde::Deserialize, Debug, Default, Clone)]
 #[serde(rename_all = "kebab-case")]
 pub struct OutboundWireguard {
+    #[serde(flatten)]
+    pub common_opts: CommonOption,
     pub name: String,
     pub server: String,
     pub port: u16,
diff --git a/clash_lib/src/proxy/converters/shadowsocks.rs b/clash_lib/src/proxy/converters/shadowsocks.rs
index b916650c9..c0f194a4a 100644
--- a/clash_lib/src/proxy/converters/shadowsocks.rs
+++ b/clash_lib/src/proxy/converters/shadowsocks.rs
@@ -2,7 +2,7 @@ use crate::{
     config::internal::proxy::OutboundShadowsocks,
     proxy::{
         shadowsocks::{Handler, HandlerOptions, OBFSOption},
-        AnyOutboundHandler, CommonOption,
+        AnyOutboundHandler,
     },
     Error,
 };
@@ -21,7 +21,7 @@ impl TryFrom<&OutboundShadowsocks> for AnyOutboundHandler {
     fn try_from(s: &OutboundShadowsocks) -> Result<Self, Self::Error> {
         let h = Handler::new(HandlerOptions {
             name: s.name.to_owned(),
-            common_opts: CommonOption::default(),
+            common_opts: s.common_opts.clone(),
             server: s.server.to_owned(),
             port: s.port,
             password: s.password.to_owned(),
diff --git a/clash_lib/src/proxy/converters/trojan.rs b/clash_lib/src/proxy/converters/trojan.rs
index 212ebdf19..642f76550 100644
--- a/clash_lib/src/proxy/converters/trojan.rs
+++ b/clash_lib/src/proxy/converters/trojan.rs
@@ -5,7 +5,7 @@ use crate::{
     proxy::{
         options::{GrpcOption, WsOption},
         trojan::{Handler, Opts, Transport},
-        AnyOutboundHandler, CommonOption,
+        AnyOutboundHandler,
     },
     Error,
 };
@@ -29,7 +29,7 @@ impl TryFrom<&OutboundTrojan> for AnyOutboundHandler {
 
         let h = Handler::new(Opts {
             name: s.name.to_owned(),
-            common_opts: CommonOption::default(),
+            common_opts: s.common_opts.clone(),
             server: s.server.to_owned(),
             port: s.port,
             password: s.password.clone(),
diff --git a/clash_lib/src/proxy/converters/vmess.rs b/clash_lib/src/proxy/converters/vmess.rs
index e04606e97..89a3731e1 100644
--- a/clash_lib/src/proxy/converters/vmess.rs
+++ b/clash_lib/src/proxy/converters/vmess.rs
@@ -6,7 +6,7 @@ use crate::{
         options::{GrpcOption, Http2Option, WsOption},
         transport::TLSOptions,
         vmess::{Handler, HandlerOptions, VmessTransport},
-        AnyOutboundHandler, CommonOption,
+        AnyOutboundHandler,
     },
     Error,
 };
@@ -30,7 +30,7 @@ impl TryFrom<&OutboundVmess> for AnyOutboundHandler {
 
         let h = Handler::new(HandlerOptions {
             name: s.name.to_owned(),
-            common_opts: CommonOption::default(),
+            common_opts: s.common_opts.clone(),
             server: s.server.to_owned(),
             port: s.port,
             uuid: s.uuid.clone(),
diff --git a/clash_lib/src/proxy/converters/wireguard.rs b/clash_lib/src/proxy/converters/wireguard.rs
index d1e5188c8..b482ae4f0 100644
--- a/clash_lib/src/proxy/converters/wireguard.rs
+++ b/clash_lib/src/proxy/converters/wireguard.rs
@@ -23,7 +23,7 @@ impl TryFrom<&OutboundWireguard> for AnyOutboundHandler {
     fn try_from(s: &OutboundWireguard) -> Result<Self, Self::Error> {
         let h = Handler::new(HandlerOpts {
             name: s.name.to_owned(),
-            common_opts: Default::default(),
+            common_opts: s.common_opts.clone(),
             server: s.server.to_owned(),
             port: s.port,
             ip: s
diff --git a/clash_lib/src/proxy/direct/mod.rs b/clash_lib/src/proxy/direct/mod.rs
index 8abf99ff1..9f0069a0d 100644
--- a/clash_lib/src/proxy/direct/mod.rs
+++ b/clash_lib/src/proxy/direct/mod.rs
@@ -52,9 +52,9 @@ impl OutboundHandler for Handler {
             resolver,
             sess.destination.host().as_str(),
             sess.destination.port(),
-            None,
+            sess.iface.as_ref(),
             #[cfg(any(target_os = "linux", target_os = "android"))]
-            None,
+            sess.packet_mark,
         )
         .await?;
 
@@ -81,7 +81,7 @@ impl OutboundHandler for Handler {
             None,
             sess.iface.as_ref(),
             #[cfg(any(target_os = "linux", target_os = "android"))]
-            None,
+            sess.packet_mark,
         )
         .await
         .map(|x| OutboundDatagramImpl::new(x, resolver))?;
diff --git a/clash_lib/src/proxy/mod.rs b/clash_lib/src/proxy/mod.rs
index 96c76b826..0ebe7c9b5 100644
--- a/clash_lib/src/proxy/mod.rs
+++ b/clash_lib/src/proxy/mod.rs
@@ -21,6 +21,8 @@ pub mod reject;
 
 pub mod http;
 pub mod mixed;
+#[cfg(target_os = "linux")]
+pub mod tproxy;
 
 pub(crate) mod datagram;
 mod options;
@@ -85,13 +87,37 @@ impl<T, U> OutboundDatagram<U> for T where
 pub type AnyOutboundDatagram =
     Box<dyn OutboundDatagram<UdpPacket, Item = UdpPacket, Error = io::Error>>;
 
-#[derive(Default, Debug, Clone)]
+#[allow(dead_code)]
+#[derive(Default, Debug, Clone, serde::Serialize, serde::Deserialize)]
 pub struct CommonOption {
-    #[allow(dead_code)]
+    #[serde(rename = "interface-name")]
     so_mark: Option<u32>,
+    #[serde(rename = "routing-mark")]
     iface: Option<Interface>,
 }
 
+impl CommonOption {
+    pub fn merge<'a>(&'a self, sess: &'a Session) -> (Option<u32>, Option<&'a Interface>) {
+        let so_mark = if let Some(so_mark) = self.so_mark {
+            Some(so_mark)
+        } else if let Some(so_mark) = sess.packet_mark {
+            Some(so_mark)
+        } else {
+            None
+        };
+
+        let iface = if let Some(iface) = self.iface.as_ref() {
+            Some(iface)
+        } else if let Some(iface) = sess.iface.as_ref() {
+            Some(iface)
+        } else {
+            None
+        };
+
+        (so_mark, iface)
+    }
+}
+
 #[async_trait]
 pub trait InboundListener: Send + Sync + Unpin {
     /// support tcp or not
diff --git a/clash_lib/src/proxy/relay/mod.rs b/clash_lib/src/proxy/relay/mod.rs
index 39bb69539..1f540391c 100644
--- a/clash_lib/src/proxy/relay/mod.rs
+++ b/clash_lib/src/proxy/relay/mod.rs
@@ -91,9 +91,9 @@ impl OutboundHandler for Handler {
                     resolver.clone(),
                     remote_addr.host().as_str(),
                     remote_addr.port(),
-                    None,
+                    sess.iface.as_ref(),
                     #[cfg(any(target_os = "linux", target_os = "android"))]
-                    None,
+                    sess.packet_mark,
                 )
                 .await?;
 
diff --git a/clash_lib/src/proxy/shadowsocks/mod.rs b/clash_lib/src/proxy/shadowsocks/mod.rs
index ade423be0..44073c70b 100644
--- a/clash_lib/src/proxy/shadowsocks/mod.rs
+++ b/clash_lib/src/proxy/shadowsocks/mod.rs
@@ -179,13 +179,14 @@ impl OutboundHandler for Handler {
         sess: &Session,
         resolver: ThreadSafeDNSResolver,
     ) -> io::Result<BoxedChainedStream> {
+        let (packet_mark, iface) = self.opts.common_opts.merge(sess);
         let stream = new_tcp_stream(
             resolver.clone(),
             self.opts.server.as_str(),
             self.opts.port,
-            self.opts.common_opts.iface.as_ref(),
+            iface,
             #[cfg(any(target_os = "linux", target_os = "android"))]
-            None,
+            packet_mark,
         )
         .map_err(|x| {
             io::Error::new(
@@ -269,11 +270,12 @@ impl OutboundHandler for Handler {
                 _ => return Err(io::Error::new(io::ErrorKind::Other, "unsupported cipher")),
             },
         );
+        let (packet_mark, iface) = self.opts.common_opts.merge(sess);
         let socket = new_udp_socket(
             None,
-            self.opts.common_opts.iface.as_ref(),
+            iface,
             #[cfg(any(target_os = "linux", target_os = "android"))]
-            None,
+            packet_mark,
         )
         .await?;
         let socket = ProxySocket::from_socket(UdpSocketType::Client, ctx, &cfg, socket);
diff --git a/clash_lib/src/proxy/socks/inbound/stream.rs b/clash_lib/src/proxy/socks/inbound/stream.rs
index d518c8ca9..29b4006b5 100644
--- a/clash_lib/src/proxy/socks/inbound/stream.rs
+++ b/clash_lib/src/proxy/socks/inbound/stream.rs
@@ -140,9 +140,9 @@ pub async fn handle_tcp<'a>(
             let udp_addr = SocketAddr::new(s.local_addr()?.ip(), 0);
             let udp_inbound = new_udp_socket(
                 Some(&udp_addr),
-                None,
+                sess.iface.as_ref(),
                 #[cfg(any(target_os = "linux", target_os = "android"))]
-                None,
+                sess.packet_mark,
             )
             .await?;
 
@@ -166,8 +166,6 @@ pub async fn handle_tcp<'a>(
             let sess = Session {
                 network: Network::Udp,
                 typ: Type::Socks5,
-                packet_mark: None,
-                iface: None,
                 ..Default::default()
             };
 
diff --git a/clash_lib/src/proxy/tproxy/inbound.rs b/clash_lib/src/proxy/tproxy/inbound.rs
new file mode 100644
index 000000000..196f5fc5d
--- /dev/null
+++ b/clash_lib/src/proxy/tproxy/inbound.rs
@@ -0,0 +1,175 @@
+use std::{net::SocketAddr, sync::Arc};
+
+use tracing::{trace, warn};
+
+use crate::{
+    app::dispatcher::Dispatcher,
+    proxy::{
+        datagram::UdpPacket, utils::new_transparent_udp_socket, AnyInboundListener, InboundListener,
+    },
+    session::{get_packet_mark, Network, Session, SocksAddr, Type},
+};
+
+use async_trait::async_trait;
+
+use super::{
+    iptables::TProxyGuard,
+    transparent_socket::{new_tcp_listener, new_udp_listener},
+};
+use crate::common::tunnel_datagram::TunnelDatagram;
+
+pub struct Listener {
+    addr: SocketAddr,
+    dispatcher: Arc<Dispatcher>,
+    _guard: TProxyGuard,
+}
+
+impl Listener {
+    pub fn new(addr: SocketAddr, dispatcher: Arc<Dispatcher>) -> AnyInboundListener {
+        let _guard = TProxyGuard::new(
+            Default::default(),
+            get_packet_mark(),
+            addr.port(),
+            None,
+            None,
+        );
+
+        Arc::new(Self {
+            addr,
+            dispatcher,
+            _guard,
+        }) as _
+    }
+}
+
+impl Drop for Listener {
+    fn drop(&mut self) {
+        warn!("tproxy inbound listener on {} stopped", self.addr);
+    }
+}
+
+#[async_trait]
+impl InboundListener for Listener {
+    fn handle_tcp(&self) -> bool {
+        true
+    }
+
+    fn handle_udp(&self) -> bool {
+        true
+    }
+
+    async fn listen_tcp(&self) -> std::io::Result<()> {
+        let listener = new_tcp_listener(self.addr)?;
+        loop {
+            let (socket, _) = listener.accept().await?;
+            let dispatcher = self.dispatcher.clone();
+            tokio::spawn(async move {
+                let source = socket.peer_addr().unwrap();
+                let destination = SocksAddr::Ip(socket.local_addr().unwrap());
+                let session = crate::session::Session {
+                    source,
+                    destination,
+                    typ: crate::session::Type::TProxy,
+                    ..Default::default()
+                };
+                dispatcher.dispatch_stream(session, socket).await
+            });
+        }
+    }
+
+    async fn listen_udp(&self) -> std::io::Result<()> {
+        let listener = new_udp_listener(self.addr).await?;
+
+        handle_inbound_datagram(Arc::new(listener), self.dispatcher.clone()).await
+    }
+}
+
+async fn handle_inbound_datagram(
+    socket: Arc<unix_udp_sock::UdpSocket>,
+    dispatcher: Arc<Dispatcher>,
+) -> std::io::Result<()> {
+    // dispatcher <-> tun communications
+    let (l_tx, mut l_rx) = tokio::sync::mpsc::channel::<UdpPacket>(32);
+
+    // forward packets from tun to dispatcher
+    let (d_tx, d_rx) = tokio::sync::mpsc::channel::<UdpPacket>(32);
+
+    // for dispatcher - the dispatcher would receive packets from this channel, which is from the stack
+    // and send back packets to this channel, which is to the tun
+    let udp_stream = TunnelDatagram::new(l_tx, d_rx);
+
+    let sess = Session {
+        network: Network::Udp,
+        typ: Type::TProxy,
+        ..Default::default()
+    };
+
+    let closer = dispatcher.dispatch_datagram(sess, Box::new(udp_stream));
+
+    // dispatcher -> tproxy
+    let fut1 = tokio::spawn(async move {
+        while let Some(pkt) = l_rx.recv().await {
+            trace!("tproxy <- dispatcher: {:?}", pkt);
+            // populate the correct src_addr, though is it necessary?
+            let src_addr: SocketAddr = match pkt.src_addr {
+                SocksAddr::Ip(ip) => ip,
+                SocksAddr::Domain(host, port) => {
+                    warn!("unexpected domain address: {}:{:?}", host, port);
+                    continue;
+                }
+            };
+            let response_socket =
+                match new_transparent_udp_socket(Some(&src_addr), None, Some(0xff)).await {
+                    Ok(response_socket) => response_socket,
+                    Err(e) => {
+                        warn!("failed to create udp socket, err:{:?}", e);
+                        continue;
+                    }
+                };
+            // remote -> local
+            match response_socket
+                .send_to(&pkt.data[..], &pkt.dst_addr.must_into_socket_addr())
+                .await
+            {
+                Ok(_) => {}
+                Err(e) => {
+                    warn!("failed to send udp packet to proxy: {}", e);
+                }
+            }
+        }
+    });
+
+    // tproxy -> dispatcher
+    let fut2 = tokio::spawn(async move {
+        let mut buf = vec![0_u8; 1024 * 64];
+        while let Ok(meta) = socket.recv_msg(&mut buf).await {
+            match meta.orig_dst {
+                Some(orig_dst) => {
+                    trace!("recv msg:{:?} orig_dst:{:?}", meta, orig_dst);
+                    let pkt = UdpPacket {
+                        data: buf[..meta.len].to_vec(),
+                        src_addr: meta.addr.into(),
+                        dst_addr: orig_dst.into(),
+                    };
+                    trace!("tproxy -> dispatcher: {:?}", pkt);
+                    match d_tx.send(pkt).await {
+                        Ok(_) => {}
+                        Err(e) => {
+                            warn!("failed to send udp packet to proxy: {}", e);
+                            continue;
+                        }
+                    }
+                }
+                None => {
+                    warn!("failed to get orig_dst");
+                    continue;
+                }
+            }
+        }
+
+        closer.send(0).ok();
+    });
+
+    let _ = futures::future::join(fut1, fut2).await;
+    Ok(())
+}
diff --git a/clash_lib/src/proxy/tproxy/iptables.rs b/clash_lib/src/proxy/tproxy/iptables.rs
new file mode 100644
index 000000000..265e0dd14
--- /dev/null
+++ b/clash_lib/src/proxy/tproxy/iptables.rs
@@ -0,0 +1,221 @@
+use cmd_lib::run_cmd;
+use std::process::Command;
+use tracing::{debug, error, warn};
+
+// TODO: support nftables
+#[derive(Debug, Clone, Copy)]
+pub enum TProxyStrategy {
+    Iptables,
+    None,
+}
+
+impl Default for TProxyStrategy {
+    // auto detect command in system
+    fn default() -> Self {
+        if command_exists("iptables") {
+            TProxyStrategy::Iptables
+        } else {
+            warn!("iptables command not found, tproxy is disabled");
+            TProxyStrategy::None
+        }
+    }
+}
+
+impl From<&str> for TProxyStrategy {
+    fn from(s: &str) -> Self {
+        match s {
+            "iptables" => TProxyStrategy::Iptables,
+            _ => TProxyStrategy::None,
+        }
+    }
+}
+
+impl TProxyStrategy {
+    pub fn setup(
+        &self,
+        skip_mark: u32,
+        tproxy_port: u16,
+        output_chain_name: Option<&str>,
+        prerouting_chain_name: Option<&str>,
+    ) {
+        match self {
+            TProxyStrategy::Iptables => {
+                clean_iptables_tproxy(output_chain_name, prerouting_chain_name);
+                setup_iptables_tproxy(
+                    skip_mark,
+                    tproxy_port,
+                    output_chain_name,
+                    prerouting_chain_name,
+                );
+            }
+            TProxyStrategy::None => {
+                error!("No tproxy command found");
+            }
+        }
+    }
+}
+
+#[derive(Debug)]
+pub struct TProxyGuard {
+    strategy: TProxyStrategy,
+    skip_mark: u32,
+    tproxy_port: u16,
+    output_chain_name: Option<String>,
+    prerouting_chain_name: Option<String>,
+}
+
+impl TProxyGuard {
+    pub fn new(
+        strategy: TProxyStrategy,
+        skip_mark: u32,
+        tproxy_port: u16,
+        output_chain_name: Option<String>,
+        prerouting_chain_name: Option<String>,
+    ) -> Self {
+        strategy.setup(
+            skip_mark,
+            tproxy_port,
+            output_chain_name.as_deref(),
+            prerouting_chain_name.as_deref(),
+        );
+        Self {
+            strategy,
+            skip_mark,
+            tproxy_port,
+            output_chain_name,
+            prerouting_chain_name,
+        }
+    }
+}
+
+impl Drop for TProxyGuard {
+    fn drop(&mut self) {
+        match self.strategy {
+            TProxyStrategy::Iptables => {
+                clean_iptables_tproxy(
+                    self.output_chain_name.as_deref(),
+                    self.prerouting_chain_name.as_deref(),
+                );
+            }
+            TProxyStrategy::None => {}
+        }
+    }
+}
+
+fn command_exists(command: &str) -> bool {
+    Command::new(command).arg("-v").output().is_ok()
+}
+
+const DEFAULT_OUTPUT_DIVERT_CHAIN: &str = "CLASH_TPROXY_OUTPUT_DIVERT";
+const DEFAULT_OUTPUT_CHAIN: &str = "CLASH_TPROXY_OUTPUT";
+const DEFAULT_PREROUTING_CHAIN: &str = "CLASH_TPROXY_PREROUTING";
+const POLICY_ROUTING_TABLE_NUM: u32 = 400;
+const DEFAULT_TPROXY_MARK: u32 = 0x1;
+const DEFAULT_TPROXY_MARK_MUSK: &str = "0x1/0x1";
+
+// TODO: add a cli to mamange these reserved addresses more easily?
+const RESERVED_ADDRS: &[&str] = &[
+    "0/8",
+    "10/8",
+    "100.64/10",
+    "127/8",
+    "169.254/16",
+    "172.16/12",
+    "192/24",
+    "192.0.2.0/24",
+    "192.88.99/24",
+    "192.168/16",
+    "198.18/15",
+    "198.51.100/24",
+    "203.0.113/24",
+    "224/4",
+    "240/4",
+    "255.255.255.255/32",
+];
+
+// TODO: handle corner cases in iptables' rules
+pub fn setup_iptables_tproxy(
+    skip_mark: u32,
+    tproxy_port: u16,
+    output_chain_name: Option<&str>,
+    prerouting_chain_name: Option<&str>,
+) {
+    let divert_chain_name = DEFAULT_OUTPUT_DIVERT_CHAIN;
+    let output_chain_name = output_chain_name.unwrap_or(DEFAULT_OUTPUT_CHAIN);
+    let prerouting_chain_name = prerouting_chain_name.unwrap_or(DEFAULT_PREROUTING_CHAIN);
+
+    debug!(
+        "setup tproxy via iptables, policy_routing_table_num: {}, tproxy_mark: {}, output_chain_name: {}, prerouting_chain_name: {}",
+        POLICY_ROUTING_TABLE_NUM, DEFAULT_TPROXY_MARK, output_chain_name, prerouting_chain_name
+    );
+
+    run_cmd!(ip rule add fwmark $DEFAULT_TPROXY_MARK lookup $POLICY_ROUTING_TABLE_NUM);
+    run_cmd!(ip route add local "0.0.0.0/0" dev lo table $POLICY_ROUTING_TABLE_NUM);
+
+    // re-route the packet flow to the local listener by cooperating with `ip rule`'s fwmark
+    // to avoid the infinite loop
+    run_cmd!(iptables "-t" mangle "-N" $output_chain_name);
+    run_cmd!(iptables "-t" mangle "-F" $output_chain_name);
+    for addr in RESERVED_ADDRS {
+        run_cmd!(iptables "-t" mangle "-A" $output_chain_name "-d" $addr "-j" RETURN);
+    }
+    run_cmd!(iptables "-t" mangle "-A" $output_chain_name "-j" RETURN "-m" mark "--mark" $skip_mark);
+    run_cmd!(iptables "-t" mangle "-A" $output_chain_name "-m" addrtype "--dst-type" LOCAL "-j" RETURN);
+    run_cmd!(iptables "-t" mangle "-A" $output_chain_name "-m" addrtype "--dst-type" BROADCAST "-j" RETURN);
+    // dig example.com => 93.184.216.34
+    run_cmd!(iptables "-t" mangle "-A" $output_chain_name "-p" tcp "-j" MARK "--set-mark" $DEFAULT_TPROXY_MARK);
+    run_cmd!(iptables "-t" mangle "-A" $output_chain_name "-p" udp "-j" MARK "--set-mark" $DEFAULT_TPROXY_MARK);
+    run_cmd!(iptables "-t" mangle "-A" OUTPUT -p tcp "-j" $output_chain_name);
+    run_cmd!(iptables "-t" mangle "-A" OUTPUT -p udp "-j" $output_chain_name);
+
+    // for optimization of tcp
+    run_cmd!(iptables "-t" mangle "-N" $divert_chain_name);
+    run_cmd!(iptables "-t" mangle "-F" $divert_chain_name);
+    run_cmd!(iptables "-t" mangle "-A" $divert_chain_name "-j" MARK "--set-mark" $DEFAULT_TPROXY_MARK);
+    run_cmd!(iptables "-t" mangle "-A" $divert_chain_name "-j" ACCEPT);
+
+    // to catch the output socket to the listening socket on tproxy-port
+    run_cmd!(iptables "-t" mangle "-N" $prerouting_chain_name);
+    run_cmd!(iptables "-t" mangle "-F" $prerouting_chain_name);
+    for addr in RESERVED_ADDRS {
+        run_cmd!(iptables "-t" mangle "-A" $prerouting_chain_name "-d" $addr "-j" RETURN);
+    }
+    run_cmd!(iptables "-t" mangle "-A" $prerouting_chain_name "-m" addrtype "--dst-type" LOCAL "-j" LOG "--log-prefix" "\"LOCAL IN\"");
+    run_cmd!(iptables "-t" mangle "-A" $prerouting_chain_name "-m" addrtype "--dst-type" LOCAL "-j" RETURN);
+    run_cmd!(iptables "-t" mangle "-A" $prerouting_chain_name "-m" mark "--mark" $skip_mark "-j" RETURN);
+    run_cmd!(iptables "-t" mangle "-A" $prerouting_chain_name "-p" tcp "-m" socket "-j" divert_chain_name);
+
+    run_cmd!(iptables "-t" mangle "-A" $prerouting_chain_name "-p" tcp "-j" TPROXY "--tproxy-mark" $DEFAULT_TPROXY_MARK_MUSK "--on-port" $tproxy_port);
+    run_cmd!(iptables "-t" mangle "-A" $prerouting_chain_name "-p" udp "-j" TPROXY "--tproxy-mark" $DEFAULT_TPROXY_MARK_MUSK "--on-port" $tproxy_port);
+    run_cmd!(iptables "-t" mangle "-A" PREROUTING "-p" tcp "-j" $prerouting_chain_name);
+    run_cmd!(iptables "-t" mangle "-A" PREROUTING "-p" udp "-j" $prerouting_chain_name);
+}
+
+pub fn clean_iptables_tproxy(output_chain_name: Option<&str>, prerouting_chain_name: Option<&str>) {
+    let output_chain_name = output_chain_name.unwrap_or(DEFAULT_OUTPUT_CHAIN);
+    let prerouting_chain_name = prerouting_chain_name.unwrap_or(DEFAULT_PREROUTING_CHAIN);
+    debug!(
+        "clean tproxy via iptables, policy_routing_table_num: {}, tproxy_mark: {}, output_chain_name: {}, prerouting_chain_name: {}",
+        POLICY_ROUTING_TABLE_NUM, DEFAULT_TPROXY_MARK, output_chain_name, prerouting_chain_name
+    );
+    run_cmd!(ip rule del fwmark $DEFAULT_TPROXY_MARK lookup $POLICY_ROUTING_TABLE_NUM);
+    run_cmd!(ip route flush table $POLICY_ROUTING_TABLE_NUM);
+
+    // must delete the ref in the OUTPUT chain before deleting the chain
+    run_cmd!(iptables "-t" mangle "-D" OUTPUT "-p" "tcp" "-j" $output_chain_name);
+    run_cmd!(iptables "-t" mangle "-D" OUTPUT "-p" "udp" "-j" $output_chain_name);
+    // must flush the user-defined chain before delete it
+    run_cmd!(iptables "-t" mangle "-F" $output_chain_name);
+    run_cmd!(iptables "-t" mangle "-X" $output_chain_name);
+
+    run_cmd!(iptables "-t" mangle "-D" PREROUTING "-p" "tcp" "-j" $prerouting_chain_name);
+    run_cmd!(iptables "-t" mangle "-D" PREROUTING "-p" "udp" "-j" $prerouting_chain_name);
+    run_cmd!(iptables "-t" mangle "-F" $prerouting_chain_name);
+    run_cmd!(iptables "-t" mangle "-X" $prerouting_chain_name);
+}
+
+#[test]
+#[ignore = "only for cleanup after manual testing"]
+fn test_clean() {
+    clean_iptables_tproxy(None, None);
+}
diff --git a/clash_lib/src/proxy/tproxy/mod.rs b/clash_lib/src/proxy/tproxy/mod.rs
new file mode 100644
index 000000000..39db67cd6
--- /dev/null
+++ b/clash_lib/src/proxy/tproxy/mod.rs
@@ -0,0 +1,8 @@
+#[allow(warnings)]
+pub mod iptables;
+#[allow(warnings)]
+pub mod transparent_socket;
+
+pub mod inbound;
+
+pub use inbound::Listener as TProxyListener;
diff --git a/clash_lib/src/proxy/tproxy/transparent_socket.rs b/clash_lib/src/proxy/tproxy/transparent_socket.rs
new file mode 100644
index 000000000..f917336e5
--- /dev/null
+++ b/clash_lib/src/proxy/tproxy/transparent_socket.rs
@@ -0,0 +1,95 @@
+use std::net::SocketAddr;
+use std::os::unix::io::AsRawFd;
+use std::{io, mem};
+
+use tokio::net::{TcpListener, TcpSocket, UdpSocket};
+
+macro_rules! syscall {
+    ($fn: ident ( $($arg: expr),* $(,)* ) ) => {{
+        let res = unsafe { libc::$fn($($arg, )*) };
+        if res == -1 {
+            Err(std::io::Error::last_os_error())
+        } else {
+            Ok(res)
+        }
+    }};
+}
+
+/// Set IP_TRANSPARENT for use of tproxy.
+/// User may need to get root privilege to use it.
+fn set_ip_transparent(socket_fd: i32) -> io::Result<i32> {
+    let enable: libc::c_int = 1;
+    syscall!(setsockopt(
+        socket_fd,
+        libc::SOL_IP,
+        libc::IP_TRANSPARENT,
+        &enable as *const _ as *const _,
+        mem::size_of_val(&enable) as libc::socklen_t,
+    ))
+}
+
+fn set_recv_tos(socket_fd: i32) -> io::Result<i32> {
+    let enable: libc::c_int = 1;
+    syscall!(setsockopt(
+        socket_fd,
+        libc::IPPROTO_IP,
+        libc::IP_RECVTOS,
+        &enable as *const _ as *const _,
+        mem::size_of_val(&enable) as libc::socklen_t,
+    ))
+}
+
+fn set_mark(socket_fd: i32, mark: u32) -> io::Result<i32> {
+    syscall!(setsockopt(
+        socket_fd,
+        libc::SOL_SOCKET,
+        libc::SO_MARK,
+        &mark as *const _ as *const _,
+        mem::size_of_val(&mark) as libc::socklen_t,
+    ))
+}
+
+fn set_recv_origin_dst(socket_fd: i32) -> io::Result<i32> {
+    let enable: libc::c_int = 1;
+    syscall!(setsockopt(
+        socket_fd,
+        libc::IPPROTO_IP,
+        libc::IP_RECVORIGDSTADDR,
+        &enable as *const _ as *const _,
+        mem::size_of_val(&enable) as libc::socklen_t,
+    ))
+}
+
+fn set_reuse(socket_fd: i32) -> io::Result<i32> {
+    let enable: libc::c_int = 1;
+    syscall!(setsockopt(
+        socket_fd,
+        libc::SOL_SOCKET,
+        libc::SO_REUSEADDR,
+        &enable as *const _ as *const _,
+        mem::size_of_val(&enable) as libc::socklen_t,
+    ))
+}
+
+// only support v4 now
+pub fn new_tcp_listener(addr: SocketAddr) -> io::Result<TcpListener> {
+    let socket = TcpSocket::new_v4()?;
+    set_ip_transparent(socket.as_raw_fd())?;
+    socket.set_reuseaddr(true)?;
+    socket.bind(addr)?;
+    Ok(socket.listen(1024)?)
+}
+
+// TODO: return a udp transparent listener
+pub async fn new_udp_listener(addr: SocketAddr) -> io::Result<unix_udp_sock::UdpSocket> {
+    let socket = unix_udp_sock::UdpSocket::bind(addr).await?;
+    let fd = socket.as_raw_fd();
+    set_ip_transparent(fd)?;
+    set_reuse(fd)?;
+    set_recv_origin_dst(fd)?;
+    // TODO: support tos
+    set_recv_tos(fd)?;
+    set_mark(fd, 0xff)?;
+
+    Ok(socket)
+}
diff --git a/clash_lib/src/proxy/trojan/mod.rs b/clash_lib/src/proxy/trojan/mod.rs
index 233b8b92e..dbd11e842 100644
--- a/clash_lib/src/proxy/trojan/mod.rs
+++ b/clash_lib/src/proxy/trojan/mod.rs
@@ -151,13 +151,15 @@ impl OutboundHandler for Handler {
         sess: &Session,
         resolver: ThreadSafeDNSResolver,
     ) -> io::Result<BoxedChainedStream> {
+        let (packet_mark, iface) = self.opts.common_opts.merge(sess);
+
         let stream = new_tcp_stream(
             resolver.clone(),
             self.opts.server.as_str(),
             self.opts.port,
-            self.opts.common_opts.iface.as_ref(),
+            iface,
             #[cfg(any(target_os = "linux", target_os = "android"))]
-            None,
+            packet_mark,
         )
         .map_err(|x| {
             io::Error::new(
@@ -191,13 +193,14 @@ impl OutboundHandler for Handler {
         sess: &Session,
         resolver: ThreadSafeDNSResolver,
     ) -> io::Result<BoxedChainedDatagram> {
+        let (packet_mark, iface) = self.opts.common_opts.merge(sess);
         let stream = new_tcp_stream(
             resolver.clone(),
             self.opts.server.as_str(),
             self.opts.port,
-            self.opts.common_opts.iface.as_ref(),
+            iface,
             #[cfg(any(target_os = "linux", target_os = "android"))]
-            None,
+            packet_mark,
         )
         .map_err(|x| {
             io::Error::new(
diff --git a/clash_lib/src/proxy/tun/inbound.rs b/clash_lib/src/proxy/tun/inbound.rs
index 7e1a33393..194ea8161 100644
--- a/clash_lib/src/proxy/tun/inbound.rs
+++ b/clash_lib/src/proxy/tun/inbound.rs
@@ -1,4 +1,4 @@
-use super::{datagram::TunDatagram, netstack};
+use super::netstack;
 use std::{net::SocketAddr, sync::Arc};
 
 use futures::{SinkExt, StreamExt};
@@ -8,7 +8,7 @@ use url::Url;
 
 use crate::{
     app::{dispatcher::Dispatcher, dns::ThreadSafeDNSResolver},
-    common::errors::map_io_error,
+    common::{errors::map_io_error, tunnel_datagram::TunnelDatagram},
     config::internal::config::TunConfig,
     proxy::datagram::UdpPacket,
     session::{Network, Session, SocksAddr, Type},
@@ -37,9 +37,6 @@ async fn handle_inbound_datagram(
     dispatcher: Arc<Dispatcher>,
     resolver: ThreadSafeDNSResolver,
 ) {
-    let local_addr = socket.local_addr();
-    // tun i/o
-
     let (ls, mut lr) = socket.split();
     let ls = Arc::new(ls);
 
@@ -51,7 +48,7 @@ async fn handle_inbound_datagram(
 
     // for dispatcher - the dispatcher would receive packets from this channel, which is from the stack
     // and send back packets to this channel, which is to the tun
-    let udp_stream = TunDatagram::new(l_tx, d_rx, local_addr);
+    let udp_stream = TunnelDatagram::new(l_tx, d_rx);
 
     let sess = Session {
         network: Network::Udp,
@@ -66,7 +63,7 @@ async fn handle_inbound_datagram(
         while let Some(pkt) = l_rx.recv().await {
             trace!("tun <- dispatcher: {:?}", pkt);
             // populate the correct src_addr, though is it necessary?
-            let src_addr = match pkt.src_addr {
+            let src_addr: SocketAddr = match pkt.src_addr {
                 SocksAddr::Ip(ip) => ip,
                 SocksAddr::Domain(host, port) => {
                     match resolver.resolve(&host, resolver.fake_ip_enabled()).await {
diff --git a/clash_lib/src/proxy/tun/mod.rs b/clash_lib/src/proxy/tun/mod.rs
index cde10543e..a84455efa 100644
--- a/clash_lib/src/proxy/tun/mod.rs
+++ b/clash_lib/src/proxy/tun/mod.rs
@@ -1,4 +1,3 @@
 pub mod inbound;
-pub use netstack_lwip as netstack;
-mod datagram;
 pub use inbound::get_runner as get_tun_runner;
+pub use netstack_lwip as netstack;
diff --git a/clash_lib/src/proxy/utils/socket_helpers.rs b/clash_lib/src/proxy/utils/socket_helpers.rs
index fe9ef4b82..362818228 100644
--- a/clash_lib/src/proxy/utils/socket_helpers.rs
+++ b/clash_lib/src/proxy/utils/socket_helpers.rs
@@ -124,6 +124,23 @@ pub async fn new_udp_socket(
     src: Option<&SocketAddr>,
     iface: Option<&Interface>,
     #[cfg(any(target_os = "linux", target_os = "android"))] packet_mark: Option<u32>,
+) -> io::Result<UdpSocket> {
+    new_udp_socket_inner(false, src, iface, packet_mark).await
+}
+
+pub async fn new_transparent_udp_socket(
+    src: Option<&SocketAddr>,
+    iface: Option<&Interface>,
+    #[cfg(any(target_os = "linux", target_os = "android"))] packet_mark: Option<u32>,
+) -> io::Result<UdpSocket> {
+    new_udp_socket_inner(true, src, iface, packet_mark).await
+}
+
+pub async fn new_udp_socket_inner(
+    transparent: bool,
+    src: Option<&SocketAddr>,
+    iface: Option<&Interface>,
+    #[cfg(any(target_os = "linux", target_os = "android"))] packet_mark: Option<u32>,
 ) -> io::Result<UdpSocket> {
     let socket = match src {
         Some(src) => {
@@ -136,6 +153,18 @@ pub async fn new_udp_socket(
         None => socket2::Socket::new(socket2::Domain::IPV4, socket2::Type::DGRAM, None)?,
     };
 
+    // see: https://docs.kernel.org/networking/tproxy.html#making-non-local-sockets-work
+    // **All you have to do is enable the (SOL_IP, IP_TRANSPARENT) socket option before calling bind**
+    // for tcp and udp, situations are slightly different:
+    // 1. for tcp, all you need to do is to create a listener with IP_TRANSPARENT enabled, since the packet flow
+    //    is based on the stream, the ingress and egress of the stream will be handled by system stack properly
+    // 2, for udp, the socket that binds the tproxy-port shall have IP_TRANSPARENT enabled,
+    //    and the response socket should also have IP_TRANSPARENT enabled, in order to sink a packet that
+    //    have any (src, sport), which is the (dst, sport) of the inbound packet
+    if transparent {
+        socket.set_ip_transparent(true)?;
+    }
+
     if let Some(src) = src {
         socket.bind(&(*src).into())?;
     }
diff --git a/clash_lib/src/proxy/vmess/mod.rs b/clash_lib/src/proxy/vmess/mod.rs
index c600a0efc..07724159c 100644
--- a/clash_lib/src/proxy/vmess/mod.rs
+++ b/clash_lib/src/proxy/vmess/mod.rs
@@ -169,14 +169,14 @@ impl OutboundHandler for Handler {
         sess: &Session,
         resolver: ThreadSafeDNSResolver,
     ) -> io::Result<BoxedChainedStream> {
-        debug!("Connecting to {} via VMess", sess);
+        let (packet_mark, iface) = self.opts.common_opts.merge(sess);
         let stream = new_tcp_stream(
             resolver,
             self.opts.server.as_str(),
             self.opts.port,
-            self.opts.common_opts.iface.as_ref(),
+            iface,
             #[cfg(any(target_os = "linux", target_os = "android"))]
-            None,
+            packet_mark,
         )
         .map_err(|x| {
             io::Error::new(
@@ -210,13 +210,14 @@ impl OutboundHandler for Handler {
         sess: &Session,
         resolver: ThreadSafeDNSResolver,
     ) -> io::Result<BoxedChainedDatagram> {
+        let (packet_mark, iface) = self.opts.common_opts.merge(sess);
         let stream = new_tcp_stream(
             resolver.clone(),
             self.opts.server.as_str(),
             self.opts.port,
-            self.opts.common_opts.iface.as_ref(),
+            iface,
             #[cfg(any(target_os = "linux", target_os = "android"))]
-            None,
+            packet_mark,
         )
         .map_err(|x| {
             io::Error::new(
diff --git a/clash_lib/src/session.rs b/clash_lib/src/session.rs
index be5a17399..27e3d2cde 100644
--- a/clash_lib/src/session.rs
+++ b/clash_lib/src/session.rs
@@ -12,6 +12,13 @@ use tokio::io::{AsyncRead, AsyncReadExt};
 
 use erased_serde::Serialize as ESerialize;
 
+// mark of the packet from clash-rs
+static DEFAULT_PACKET_MARK: u32 = 0xff;
+
+pub(crate) fn get_packet_mark() -> u32 {
+    DEFAULT_PACKET_MARK
+}
+
 #[derive(Debug, PartialEq, Eq, Serialize)]
 pub enum SocksAddr {
     Ip(SocketAddr),
@@ -353,6 +360,7 @@ pub enum Type {
     Http,
     HttpConnect,
     Socks5,
+    TProxy,
     Tun,
 }
 
@@ -409,7 +417,7 @@ impl Default for Session {
             typ: Type::Http,
             source: SocketAddr::new(IpAddr::V4(Ipv4Addr::new(0, 0, 0, 0)), 0),
             destination: SocksAddr::any_ipv4(),
-            packet_mark: None,
+            packet_mark: Some(get_packet_mark()),
             iface: None,
         }
     }