From f55ff4a99fdb372be40db6381e441a8d1bad6cbb Mon Sep 17 00:00:00 2001
From: Felix Lange <fjl@twurst.com>
Date: Mon, 28 Jul 2025 12:48:06 +0200
Subject: [PATCH] eth: add log message for ENR filtering failures

---
 eth/backend.go | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/eth/backend.go b/eth/backend.go
index 7616ec9d31..a606073b10 100644
--- a/eth/backend.go
+++ b/eth/backend.go
@@ -537,7 +537,10 @@ func (s *Ethereum) setupDiscovery() error {
 			// RequestENR does not yet support context. It will simply time out.
 			// If the ENR can't be resolved, RequestENR will return nil. We don't
 			// care about the specific error here, so we ignore it.
-			nn, _ := s.p2pServer.DiscoveryV4().RequestENR(enr)
+			nn, err := s.p2pServer.DiscoveryV4().RequestENR(enr)
+			if err != nil {
+				log.Debug("Filtered dial node", "id", enr.ID(), "err", err)
+			}
 			return nn
 		}
 		iter = enode.AsyncFilter(iter, resolverFunc, maxParallelENRRequests)