Index: if_ethersubr.c
===================================================================
RCS file: /cvs/src/sys/net/if_ethersubr.c,v
diff -u -p -r1.300 if_ethersubr.c
--- if_ethersubr.c	2 May 2025 09:57:36 -0000	1.300
+++ if_ethersubr.c	18 May 2025 04:13:28 -0000
@@ -1341,6 +1341,8 @@ ether_frm_valid_etype(uint16_t etype)
 	switch (etype) {
 	case ETHERTYPE_LLDP:
 	case ETHERTYPE_EAPOL:
+	case ETHERTYPE_PTP:
+	case ETHERTYPE_CFM:
 		return (1);
 	}