diff -Naur iputils-s20100214//ping_common.c iputils-s20100214.tpg//ping_common.c
--- iputils-s20100214//ping_common.c	2010-02-13 18:39:23.000000000 +0000
+++ iputils-s20100214.tpg//ping_common.c	2010-04-18 00:41:28.000000000 +0000
@@ -861,7 +861,8 @@
 		printf("%spipe %d", comma, pipesize);
 		comma = ", ";
 	}
-	if (ntransmitted > 1 && (!interval || (options&(F_FLOOD|F_ADAPTIVE)))) {
+	if (ntransmitted > 1 && nreceived &&
+		(!interval || (options&(F_FLOOD|F_ADAPTIVE)))) {
 		int ipg = (1000000*(long long)tv.tv_sec+tv.tv_usec)/(ntransmitted-1);
 		printf("%sipg/ewma %d.%03d/%d.%03d ms",
 		       comma, ipg/1000, ipg%1000, rtt/8000, (rtt/8)%1000);