Index: in.c
===================================================================
RCS file: /cvs/src/sys/netinet/in.c,v
retrieving revision 1.160
diff -u -p -r1.160 in.c
--- in.c	11 Jul 2018 21:18:23 -0000	1.160
+++ in.c	14 Dec 2018 01:11:23 -0000
@@ -574,6 +574,9 @@ in_ifinit(struct ifnet *ifp, struct in_i
 	struct sockaddr_in oldaddr;
 	int error = 0, rterror;
 
+	if (i == INADDR_ANY || i == INADDR_BROADCAST || IN_MULTICAST(i))
+		return (EADDRNOTAVAIL);
+
 	NET_ASSERT_LOCKED();
 
 	/*