diff --git a/src/bootstrap.rs b/src/bootstrap.rs
index 7f58e33..82c35ef 100644
--- a/src/bootstrap.rs
+++ b/src/bootstrap.rs
@@ -78,6 +78,17 @@ pub struct NetworkInterface {
     pub udev: Option<UdevFilter>,
 }
 
+impl Default for NetworkInterface {
+    fn default() -> Self {
+        Self {
+            var: "iface".into(),
+            n: 1,
+            regexps: Vec::new(),
+            udev: Some(UdevFilter::Eq("INTERFACE".into(), "eth0".into())),
+        }
+    }
+}
+
 #[derive(Clone, Debug, serde::Deserialize, serde::Serialize)]
 pub struct SSHServer {
     pub listen: String,