diff --git a/client/src/nat.rs b/client/src/nat.rs
index 41b7b2d..c7d06d1 100644
--- a/client/src/nat.rs
+++ b/client/src/nat.rs
@@ -128,6 +128,7 @@ fn set_endpoint(public_key: &str, endpoint: Option<&Endpoint>) -> Option<PeerCon
     endpoint
         .and_then(|endpoint| endpoint.resolve().ok())
         .map(|addr| {
+            log::trace!("set_endpoint({}, {})", public_key, addr);
             PeerConfigBuilder::new(&Key::from_base64(public_key).unwrap()).set_endpoint(addr)
         })
 }
diff --git a/wireguard-control/src/backends/kernel.rs b/wireguard-control/src/backends/kernel.rs
index 889e25d..3b2f609 100644
--- a/wireguard-control/src/backends/kernel.rs
+++ b/wireguard-control/src/backends/kernel.rs
@@ -392,10 +392,11 @@ pub fn get_by_name(name: &InterfaceName) -> Result<Device, io::Error> {
     };
 
     let result = if ret == 0 && !device.is_null() {
+        println!("kernel get_by_name: wg FFI ret code was normal.");
         Ok(Device::from(unsafe { &*device }))
     } else {
         let last_error = io::Error::last_os_error();
-        println!("FFI ret code was {}, &device is {:p}, last OS error: {:?}", ret, device, last_error.raw_os_error());
+        println!("kernel get_by_name: FFI ret code was {}, &device is {:p}, last OS error: {:?}", ret, device, last_error.raw_os_error());
         Err(last_error)
     };