diff --git a/sbin/ping/ping.c b/sbin/ping/ping.c
--- a/sbin/ping/ping.c
+++ b/sbin/ping/ping.c
@@ -203,6 +203,7 @@
 static int interval = 1000;	/* interval between packets, ms */
 static int waittime = MAXWAIT;	/* timeout for each packet */
 static long nrcvtimeout = 0;	/* # of packets we got back after waittime */
+static uint16_t lastseq;	/* the latest seq # for the received packets */
 
 /* timing */
 static int timing;		/* flag to do timing */
@@ -985,6 +986,10 @@
 			    (npackets && nreceived >= npackets))
 				break;
 		}
+		if (n == 0 && (options & F_FLOOD) == 0 &&
+		    (nreceived == 0 || ntransmitted - 1 > lastseq))
+			printf("Request timeout for icmp_seq %u\n",
+			    (uint16_t)(ntransmitted - 1));
 		if (n == 0 || options & F_FLOOD) {
 			if (sweepmax && sntransmitted == snpackets) {
 				if (datalen + sweepincr > sweepmax)
@@ -1230,7 +1235,7 @@
 				timing = 0;
 		}
 
-		seq = ntohs(icp.icmp_seq);
+		seq = lastseq = ntohs(icp.icmp_seq);
 
 		if (TST(seq % mx_dup_ck)) {
 			++nrepeats;
diff --git a/sbin/ping/ping6.c b/sbin/ping/ping6.c
--- a/sbin/ping/ping6.c
+++ b/sbin/ping/ping6.c
@@ -250,6 +250,7 @@
 static int interval = 1000;	/* interval between packets in ms */
 static int waittime = MAXWAIT;	/* timeout for each packet */
 static long nrcvtimeout = 0;	/* # of packets we got back after waittime */
+static uint16_t lastseq;	/* the latest seq # for the received packets */
 
 /* timing */
 static int timing;		/* flag to do timing */
@@ -1253,6 +1254,10 @@
 			    (npackets > 0 && nreceived >= npackets))
 				break;
 		}
+		if (n == 0 && (options & F_FLOOD) == 0 &&
+		    (nreceived == 0 || nreceived - 1 > lastseq))
+			printf("Request timeout for icmp_seq %u\n",
+			    (uint16_t)(ntransmitted - 1));
 		if (n == 0 || (options & F_FLOOD)) {
 			if (npackets == 0 || ntransmitted < npackets)
 				pinger();
@@ -1638,7 +1643,7 @@
 	}
 
 	if (icp->icmp6_type == ICMP6_ECHO_REPLY && myechoreply(icp)) {
-		seq = ntohs(icp->icmp6_seq);
+		seq = lastseq = ntohs(icp->icmp6_seq);
 		++nreceived;
 		if (timing) {
 			memcpy(&tpp, icp + 1, sizeof(tpp));