diff --git a/net/tipc/udp_media.c b/net/tipc/udp_media.c
index 9783101bc4a9ad5fb80cc014490bfa3da5ed1c8b..e685af4f5483ef0e003e63ed841a422822f94e4e 100644
--- a/net/tipc/udp_media.c
+++ b/net/tipc/udp_media.c
@@ -680,6 +680,11 @@ static int tipc_udp_enable(struct net *net, struct tipc_bearer *b,
 	if (err)
 		goto err;
 
+	if (remote.proto != local.proto) {
+		err = -EINVAL;
+		goto err;
+	}
+
 	/* Autoconfigure own node identity if needed */
 	if (!tipc_own_id(net)) {
 		memcpy(node_id, local.ipv6.in6_u.u6_addr8, 16);