diff --git a/flake.lock b/flake.lock
index b5a6642..d0cf0ed 100644
--- a/flake.lock
+++ b/flake.lock
@@ -52,13 +52,13 @@
     "freebsd-libs-packed": {
       "flake": false,
       "locked": {
-        "narHash": "sha256-l9YQPyra0F4guqiI4rW5XsZxGP1Usy//nglUVFlqY1c=",
+        "narHash": "sha256-2CAlSeK9dsP6RG9UDZJo2gaxRUdJw/DDTSyJibU2N5c=",
         "type": "file",
-        "url": "https://download.freebsd.org/releases/amd64/14.1-RELEASE/base.txz"
+        "url": "https://download.freebsd.org/releases/amd64/14.3-RELEASE/base.txz"
       },
       "original": {
         "type": "file",
-        "url": "https://download.freebsd.org/releases/amd64/14.1-RELEASE/base.txz"
+        "url": "https://download.freebsd.org/releases/amd64/14.3-RELEASE/base.txz"
       }
     },
     "libcap-src": {
diff --git a/pcap-sys/src/lib.rs b/pcap-sys/src/lib.rs
index bd188ef..045b8e1 100644
--- a/pcap-sys/src/lib.rs
+++ b/pcap-sys/src/lib.rs
@@ -438,9 +438,17 @@ impl WaitHandle {
     }
 
     #[cfg(unix)]
-    pub async fn wait(&self, _timeout: Option<Duration>) -> error::Result<()> {
+    pub async fn wait(&self, timeout: Option<Duration>) -> error::Result<()> {
         let async_fd = tokio::io::unix::AsyncFd::new(self.0)?;
-        let mut guard = async_fd.ready(tokio::io::Interest::READABLE).await?;
+        let mut guard = match tokio::time::timeout(
+            timeout.unwrap_or(std::time::Duration::from_millis(50)),
+            async_fd.ready(tokio::io::Interest::READABLE)
+        ).await {
+            Ok(v) => v,
+            Err(_) => {
+                return Ok(())
+            }
+        }?;
         guard.clear_ready();
         drop(guard);
         async_fd.into_inner();
diff --git a/sparse-beacon/src/socket.rs b/sparse-beacon/src/socket.rs
index 71d1b1a..06f2a29 100644
--- a/sparse-beacon/src/socket.rs
+++ b/sparse-beacon/src/socket.rs
@@ -24,7 +24,7 @@ impl RawSocket {
         let name = std::str::from_utf8(&name_raw)?;
         let mut lower = Interface::new(name)?;
 
-        let mtu = a_interface.mtu as usize - if cfg!(unix) { 14 } else { 0 };
+        let mtu = a_interface.mtu as usize - if cfg!(unix) { 28 } else { 0 };
 
         lower.set_promisc(promisc)?;
         lower.set_buffer_size(mtu as i32)?;