Index: head/sys/netinet/ip_output.c
===================================================================
--- head/sys/netinet/ip_output.c
+++ head/sys/netinet/ip_output.c
@@ -350,7 +350,8 @@
 		have_ia_ref = 1;
 		ifp = ia->ia_ifp;
 		ip->ip_ttl = 1;
-		isbroadcast = in_ifaddr_broadcast(dst->sin_addr, ia);
+		isbroadcast = ifp->if_flags & IFF_BROADCAST ?
+		    in_ifaddr_broadcast(dst->sin_addr, ia) : 0;
 	} else if (IN_MULTICAST(ntohl(ip->ip_dst.s_addr)) &&
 	    imo != NULL && imo->imo_multicast_ifp != NULL) {
 		/*
@@ -403,8 +404,10 @@
 			gw = (struct sockaddr_in *)rte->rt_gateway;
 		if (rte->rt_flags & RTF_HOST)
 			isbroadcast = (rte->rt_flags & RTF_BROADCAST);
-		else
+		else if (ifp->if_flags & IFF_BROADCAST)
 			isbroadcast = in_ifaddr_broadcast(gw->sin_addr, ia);
+		else
+			isbroadcast = 0;
 	}
 
 	/*