diff --git a/ethertype.h b/ethertype.h
index e34e07b98d..53c8125013 100644
--- a/ethertype.h
+++ b/ethertype.h
@@ -100,6 +100,9 @@
 #ifndef ETHERTYPE_IPV6
 #define ETHERTYPE_IPV6		0x86dd
 #endif
+#ifndef ETHERTYPE_SLOW
+#define ETHERTYPE_SLOW		0x8809
+#endif
 #ifndef ETHERTYPE_MPLS
 #define ETHERTYPE_MPLS		0x8847
 #endif
@@ -115,6 +118,9 @@
 #ifndef ETHERTYPE_8021AD
 #define ETHERTYPE_8021AD	0x88a8
 #endif
+#ifndef ETHERTYPE_LLDP
+#define ETHERTYPE_LLDP		0x88cc
+#endif
 #ifndef	ETHERTYPE_LOOPBACK
 #define ETHERTYPE_LOOPBACK	0x9000
 #endif
diff --git a/nametoaddr.c b/nametoaddr.c
index 7b33290bf6..9b120bd605 100644
--- a/nametoaddr.c
+++ b/nametoaddr.c
@@ -571,11 +571,13 @@ PCAP_API_DEF struct eproto eproto_db[] = {
 	{ "ip", ETHERTYPE_IP },
 	{ "ip6", ETHERTYPE_IPV6 },
 	{ "lat", ETHERTYPE_LAT },
+	{ "lldp", ETHERTYPE_LLDP },
 	{ "loopback", ETHERTYPE_LOOPBACK },
 	{ "mopdl", ETHERTYPE_MOPDL },
 	{ "moprc", ETHERTYPE_MOPRC },
 	{ "rarp", ETHERTYPE_REVARP },
 	{ "sca", ETHERTYPE_SCA },
+	{ "slow", ETHERTYPE_SLOW },
 	{ (char *)0, 0 }
 };