diff --git a/src/transport.rs b/src/transport.rs
index 1590e63..3f9ca42 100644
--- a/src/transport.rs
+++ b/src/transport.rs
@@ -5,17 +5,20 @@ use alloc::vec::Vec;
 use alloc::boxed::Box;
 
 #[cfg(not(feature = "std"))]
-pub struct Transport {}
+pub struct Transport {
+    id: [u8; 64]
+}
 
 #[cfg(feature = "std")]
 pub struct Transport {
-    ways: Vec<Box<dyn Way>>
+    ways: Vec<Box<dyn Way>>,
+    id: [u8; 64]
 }
 
 #[cfg(not(feature = "std"))]
 impl Transport {
     pub fn new() -> Self {
-        Self {}
+        Self {id: [0; 64]}
     }
 
     pub fn send(&self, msg: &Message) {
@@ -32,7 +35,7 @@ impl Transport {
 #[cfg(feature = "std")]
 impl Transport {
     pub fn new() -> Self {
-        Self {ways: Vec::<Box<dyn Way>>::new()}
+        Self {ways: Vec::<Box<dyn Way>>::new(), id: [0; 64]}
     }
 
     pub fn send(&self, msg: &Message) {