diff --git a/ip/iplink_bareudp.c b/ip/iplink_bareudp.c
index 860ec69..aa31110 100644
--- a/ip/iplink_bareudp.c
+++ b/ip/iplink_bareudp.c
@@ -22,9 +22,11 @@ static void print_explain(FILE *f)
 		"		[ srcportmin PORT ]\n"
 		"		[ [no]multiproto ]\n"
 		"\n"
-		"Where:	PORT       := 0-65535\n"
-		"	PROTO      := NUMBER | ip | mpls\n"
-		"	SRCPORTMIN := 0-65535\n"
+		"Where:	PORT  := UDP_PORT\n"
+		"	PROTO := ETHERTYPE\n"
+		"\n"
+		"Note: ETHERTYPE can be given as number or as protocol name (\"ipv4\", \"ipv6\",\n"
+		"      \"mpls_uc\", etc.).\n"
 	);
 }
 
diff --git a/man/man8/ip-link.8.in b/man/man8/ip-link.8.in
index f451ecf..ce3c863 100644
--- a/man/man8/ip-link.8.in
+++ b/man/man8/ip-link.8.in
@@ -1304,9 +1304,9 @@ For a link of type
 the following additional arguments are supported:
 
 .BI "ip link add " DEVICE
-.BI type " bareudp " dstport " PORT " ethertype " ETHERTYPE"
+.BI type " bareudp " dstport " PORT " ethertype " PROTO"
 [
-.BI srcportmin " SRCPORTMIN "
+.BI srcportmin " PORT "
 ] [
 .RB [ no ] multiproto
 ]
@@ -1317,11 +1317,14 @@ the following additional arguments are supported:
 - specifies the destination port for the UDP tunnel.
 
 .sp
-.BI ethertype " ETHERTYPE"
+.BI ethertype " PROTO"
 - specifies the ethertype of the L3 protocol being tunnelled.
+.B ethertype
+can be given as plain Ethernet protocol number or using the protocol name
+("ipv4", "ipv6", "mpls_uc", etc.).
 
 .sp
-.BI srcportmin " SRCPORTMIN"
+.BI srcportmin " PORT"
 - selects the lowest value of the UDP tunnel source port range.
 
 .sp
@@ -1329,11 +1332,11 @@ the following additional arguments are supported:
 - activates support for protocols similar to the one
 .RB "specified by " ethertype .
 When
-.I ETHERTYPE
+.B ethertype
 is "mpls_uc" (that is, unicast MPLS), this allows the tunnel to also handle
 multicast MPLS.
 When
-.I ETHERTYPE
+.B ethertype
 is "ipv4", this allows the tunnel to also handle IPv6. This option is disabled
 by default.