fix: filter out disconnected nodes on Node response

portalnet/src/overlay_service.rs

@@ -2369,6 +2369,19 @@ where
             .collect()
     }
 
+    /// Returns a vector of all the ENRs of nodes currently contained in the routing table which are connected.
+    fn table_entries_enr_connected(&self) -> Vec<Enr> {
+        self.kbuckets
+            .write()
+            .iter()
+            .filter(|entry| {
+                // Filter out disconnected nodes.
+                entry.status.is_connected()
+            })
+            .map(|entry| entry.node.value.enr())
+            .collect()
+    }
+
     /// Returns a vector of the ENRs of the closest nodes by the given log2 distances.
     fn nodes_by_distance(&self, mut log2_distances: Vec<u64>) -> Vec<SszEnr> {
         let mut nodes_to_send = Vec::new();
@@ -2387,6 +2400,10 @@ where
             for node in kbuckets
                 .nodes_by_distances(log2_distances, FIND_NODES_MAX_NODES)
                 .into_iter()
+                .filter(|entry| {
+                    // Filter out disconnected nodes.
+                    entry.status.is_connected()
+                })
                 .map(|entry| entry.node.value.clone())
             {
                 nodes_to_send.push(SszEnr::new(node.enr()));
@@ -2403,7 +2420,7 @@ where
         let content_id = content_key.content_id();
 
         let mut nodes_with_distance: Vec<(Distance, Enr)> = self
-            .table_entries_enr()
+            .table_entries_enr_connected()
             .into_iter()
             .map(|enr| (TMetric::distance(&content_id, &enr.node_id().raw()), enr))
             .collect();