diff --git a/Cargo.toml b/Cargo.toml
index 2a848fb..26960ce 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -6,3 +6,6 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+# packet = "0.1.4"
+anyhow = "1"
+log = "0.4"
diff --git a/src/ipv4_gen.rs b/src/ipv4_gen.rs
new file mode 100644
index 0000000..a7f2a16
--- /dev/null
+++ b/src/ipv4_gen.rs
@@ -0,0 +1,4 @@
+
+pub fn generate_ips() -> Vec<Vec<u8>> {
+
+}
diff --git a/src/main.rs b/src/main.rs
index e7a11a9..1756a81 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,3 +1,12 @@
+#![allow(
+    dead_code,
+    unused_variables,
+    //unused_imports, // TODO: rm
+)]
+
+mod scanner;
+mod ipv4_gen;
+
 fn main() {
     println!("Hello, world!");
 }
diff --git a/src/scanner.rs b/src/scanner.rs
new file mode 100644
index 0000000..1f62648
--- /dev/null
+++ b/src/scanner.rs
@@ -0,0 +1,35 @@
+use std::{net::{TcpStream, SocketAddr}, thread::JoinHandle};
+use log::info;
+use std::thread;
+use crate::ipv4_gen;
+
+async fn check_ack(dest: &SocketAddr) -> bool {
+    if let Ok(res) = TcpStream::connect(dest) {
+        info!("Got TCP ack from: {:?}", dest);
+        return true;
+    }
+    return false;
+}
+
+pub fn start_scan(depth: u32) {
+    let threads: Vec<JoinHandle<()>> = Vec::new();
+
+    for i in 0..depth {
+        let thread = thread::spawn(|| {
+            println!("hi"); 
+        });
+    }
+}
+
+
+/*
+
+depth: u32
+blacklist_ips: Vec
+
+pre:
+    # generate IPs
+    ALL_IPS: Vec<Vecu8>> = ...
+
+*/
+