diff --git a/client/Cargo.toml b/client/Cargo.toml
index 339c2af..09a53e1 100644
--- a/client/Cargo.toml
+++ b/client/Cargo.toml
@@ -9,6 +9,8 @@ bytes = "1"
 tonic = "0.12"
 prost = "0.13"
 crossbeam-queue = "0.3"
+hex = "0.4"
+snow = "0.9"
 
 [profile.release]
 opt-level = "z"
diff --git a/client/src/tun.rs b/client/src/tun.rs
index 7585bd5..e7d3b5e 100644
--- a/client/src/tun.rs
+++ b/client/src/tun.rs
@@ -1,4 +1,4 @@
-use std::ffi::{c_void, OSString, OsString};
+use std::ffi::{c_void, OsString};
 use std::os::windows::ffi::OsStrExt;
 use std::ptr::{null_mut};
 use std::io::{self, Read, Write};
@@ -94,7 +94,7 @@ impl TunInterface {
             let packet_ptr = *packet_ptr_ptr;
             std::ptr::copy_nonoverlapping(buf.as_ptr(), packet_ptr, buf.len());
 
-            if WintunSendPacket(self.tx_ring, &mut packet_ptr_ptr) {
+            if WintunSendPacket(self.tx_ring, packet_ptr_ptr) {
                 Ok(buf.len())
             } else {
                 Err(io::Error::new(io::ErrorKind::Other, "Failed to send packet"))