diff --git a/engine/stun.go b/engine/stun.go
index c0b0f31..4cd592b 100644
--- a/engine/stun.go
+++ b/engine/stun.go
@@ -23,6 +23,9 @@ func (s *Engine) StartStunProxy(name string) error {
 		if !d.Enable {
 			continue
 		}
+		if !d.UseNatTraversal {
+			continue
+		}
 		if name != "" && d.Name != name {
 			continue
 		}