diff --git a/__network/socket2/Cargo.lock b/__network/socket2/Cargo.lock
new file mode 100644
index 0000000..19f922a
--- /dev/null
+++ b/__network/socket2/Cargo.lock
@@ -0,0 +1,53 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+[[package]]
+name = "cfg-if"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
+
+[[package]]
+name = "libc"
+version = "0.2.81"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1482821306169ec4d07f6aca392a4681f66c75c9918aa49641a2595db64053cb"
+
+[[package]]
+name = "socket2"
+version = "0.1.0"
+dependencies = [
+ "socket2 0.3.19",
+]
+
+[[package]]
+name = "socket2"
+version = "0.3.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "122e570113d28d773067fab24266b66753f6ea915758651696b6e35e49f88d6e"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "winapi",
+]
+
+[[package]]
+name = "winapi"
+version = "0.3.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
+dependencies = [
+ "winapi-i686-pc-windows-gnu",
+ "winapi-x86_64-pc-windows-gnu",
+]
+
+[[package]]
+name = "winapi-i686-pc-windows-gnu"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
+
+[[package]]
+name = "winapi-x86_64-pc-windows-gnu"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
diff --git a/__network/socket2/Cargo.toml b/__network/socket2/Cargo.toml
new file mode 100644
index 0000000..f8953a1
--- /dev/null
+++ b/__network/socket2/Cargo.toml
@@ -0,0 +1,11 @@
+[package]
+name = "socket2"
+version = "0.1.0"
+authors = ["Hatter Jiang <jht5945@gmail.com>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+socket2 = "0.3.19"
+
diff --git a/__network/socket2/src/main.rs b/__network/socket2/src/main.rs
new file mode 100644
index 0000000..a1cc52f
--- /dev/null
+++ b/__network/socket2/src/main.rs
@@ -0,0 +1,26 @@
+use std::thread;
+use std::time::Duration;
+use std::net::SocketAddr;
+use socket2::{Socket, Domain, Type};
+
+fn main() {
+    loop {
+      // create a TCP listener bound to two addresses
+      let socket = Socket::new(Domain::ipv6(), Type::stream(), None).unwrap();
+      
+      socket.bind(&"[::1]:12345".parse::<SocketAddr>().unwrap().into()).unwrap();
+      // socket.set_only_v6(false).unwrap();
+      socket.listen(128).unwrap();
+      
+      let listener = socket.into_tcp_listener();
+      println!("Listening ...");
+      let (tcp_stream, socket_address) = listener.accept().unwrap();
+
+      println!("{:?}", socket_address);
+      println!("{:?}", tcp_stream);
+
+      drop(listener);
+      println!("Sleeping ...");
+      thread::sleep(Duration::from_secs(10));
+    }
+}