--- ../net-tools-1.3.6-BETA4/route.c	Sun Sep 24 03:42:15 1995
+++ route.c	Fri Sep 29 11:53:35 1995
@@ -200,7 +200,7 @@
 	fprintf(stderr, NLS_CATGETS(catfd, routeSet, route_usage4,
 				    "                  [metric NN] [netmask mask] [mss maxsegment] [window maxwindow]\n"));
 	fprintf(stderr, NLS_CATGETS(catfd, routeSet, route_usage5,
-				    "                  [[dev] device]\n"));
+				    "                  [irtt ticks] [[dev] device]\n"));
 	NLS_CATCLOSE(catfd)
 	exit(-1);
 }
@@ -213,7 +213,7 @@
 	struct sockaddr snet, sgate, smask;
 	FILE           *fp;
 	int             num, iflags, refcnt, use, metric;
-	int		mss, window;
+	int		mss, window, irtt;
 
 	printf(NLS_CATGETS(catfd, routeSet, route_table, "Kernel routing table\n"));
 	printf(NLS_CATGETS(catfd, routeSet, route_header,
@@ -224,11 +224,11 @@
 		return;
 	}
 	while (fgets(buff, 1023, fp)) {
-		num = sscanf(buff, "%s %s %s %X %d %d %d %s %d %d\n",
+		num = sscanf(buff, "%s %s %s %X %d %d %d %s %d %d %d\n",
 			     iface, net_addr, gate_addr,
 			     &iflags, &refcnt, &use, &metric, mask_addr,
-			     &mss,&window);
-		if (num != 10)
+			     &mss,&window,&irtt);
+		if (num != 11)
 			continue;
 
 		/* Fetch and resolve the target address. */
@@ -395,6 +395,20 @@
 			if(rt.rt_window<128||rt.rt_window>32768)
 			{
 				fprintf(stderr, NLS_CATGETS(catfd, routeSet, route_window, "Invalid window.\n"));
+				return -1;
+			}
+			continue;
+		}
+		if (!strcmp(*args,"irtt")) {
+			args++;
+			if(!*args)
+				usage();
+			rt.rt_flags |= RTF_IRTT;
+			rt.rt_irtt = atoi(*args);
+			args++;
+			if(rt.rt_irtt<1||rt.rt_irtt>32768)
+			{
+				fprintf(stderr, NLS_CATGETS(catfd, routeSet, route_window, "Invalid initial rtt\n"));
 				return -1;
 			}
 			continue;