diff --git a/veilid-core/src/network_manager/native/network_class_discovery.rs b/veilid-core/src/network_manager/native/network_class_discovery.rs
index d729f231..5ca5f9a4 100644
--- a/veilid-core/src/network_manager/native/network_class_discovery.rs
+++ b/veilid-core/src/network_manager/native/network_class_discovery.rs
@@ -1,3 +1,5 @@
+/// Detect NetworkClass and DialInfo for the PublicInternet RoutingDomain
+/// Also performs UPNP/IGD mapping if enabled and possible
 use super::*;
 use futures_util::stream::FuturesUnordered;
 use futures_util::FutureExt;