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Lines Matching defs:ttl

42  * packets with a small ttl (time to live) then listening for an
44  * with a ttl of one and increase by one until we get an icmp "port
47  * probes (change with -q flag) are sent at each ttl setting and a
48  * line is printed showing the ttl, address of the gateway and
78  * packets with a zero ttl.
106  * with a ttl too small to reach us.  14 - 17 are running the
112  * sends an unreachable message using whatever ttl remains in the
113  * original datagram.  Since, for gateways, the remaining ttl is
135  * is using the ttl from our arriving datagram as the ttl in its
138  * icmp's) until we probe with a ttl that's at least twice the path
140  * returns with a ttl of 1 is a clue this problem exists.
141  * Traceroute prints a "!" after the time if the ttl is <= 1.
283 	u_char ttl;		/* ttl packet left with */
308 	 unsigned char  ttl:8;
310 	 unsigned char  ttl:8;
444 	int ttl, probe, i;
509 			first_ttl = str2val(optarg, "first ttl", 1, 255);
536 			max_ttl = str2val(optarg, "max ttl", 1, 255);
601 		errx(1, "first ttl (%d) may not be greater than max ttl (%d)",
929 	for (ttl = first_ttl; ttl <= max_ttl; ++ttl) {
947 			send_probe(++seq, ttl, &t1);
975 					Printf(" (ttl = %d)", ip->ip_ttl);
1240 send_probe(int seq, int ttl, struct timeval *tp)
1253 	outip->ip_ttl = ttl;
1272 	outsetup.ttl = ttl;
1331 	    (char *)&ttl, sizeof(ttl)) < 0)
1332 		err(1, "setsockopt ttl %d", ttl);
1375 		Printf("%2d ", ttl);