diff --git a/sys/netpfil/pf/pf.c b/sys/netpfil/pf/pf.c
--- a/sys/netpfil/pf/pf.c
+++ b/sys/netpfil/pf/pf.c
@@ -11405,6 +11405,7 @@
 		case ND_ROUTER_ADVERT:
 		case ND_REDIRECT:
 			if (pd->ttl != 255) {
+				*action = PF_DROP;
 				REASON_SET(reason, PFRES_NORM);
 				return (PF_DROP);
 			}