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| author | ru <ru@FreeBSD.org> | 2001-06-06 16:12:59 +0000 |
|---|---|---|
| committer | ru <ru@FreeBSD.org> | 2001-06-06 16:12:59 +0000 |
| commit | c4aabf68c9e61bd7cd9618e364a819e013b249b7 (patch) | |
| tree | 5a63ecfd6424a27a239dc725d4d0245c492dfe3f /contrib/traceroute/traceroute.8 | |
| parent | 4f6209afa03b8f0938cd2bdd753ee0573f089e04 (diff) | |
| download | FreeBSD-src-c4aabf68c9e61bd7cd9618e364a819e013b249b7.zip FreeBSD-src-c4aabf68c9e61bd7cd9618e364a819e013b249b7.tar.gz | |
Fetch the default maximum TTL value from the net.inet.ip.ttl MIB.
PR: bin/19598
MFC after: 1 week
Diffstat (limited to 'contrib/traceroute/traceroute.8')
| -rw-r--r-- | contrib/traceroute/traceroute.8 | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/contrib/traceroute/traceroute.8 b/contrib/traceroute/traceroute.8 index 784935b..24bae14 100644 --- a/contrib/traceroute/traceroute.8 +++ b/contrib/traceroute/traceroute.8 @@ -97,7 +97,9 @@ The default is 1, i.e., start with the first hop. .TP .B \-m Set the max time-to-live (max number of hops) used in outgoing probe -packets. The default is 30 hops (the same default used for TCP +packets. The default is +.I net.inet.ip.ttl +hops (the same default used for TCP connections). .TP .B \-n @@ -173,7 +175,9 @@ packets with a small ttl (time to live) then listening for an ICMP "time exceeded" reply from a gateway. We start our probes with a ttl of one and increase by one until we get an ICMP "port unreachable" (which means we got to "host") or hit a max (which -defaults to 30 hops & can be changed with the \-m flag). Three +defaults to +.I net.inet.ip.ttl +hops & can be changed with the \-m flag). Three probes (change with \-q flag) are sent at each ttl setting and a line is printed showing the ttl, address of the gateway and round trip time of each probe. If the probe answers come from @@ -192,7 +196,7 @@ A sample use and output might be: .RS .nf [yak 71]% traceroute nis.nsf.net. -traceroute to nis.nsf.net (35.1.1.48), 30 hops max, 38 byte packet +traceroute to nis.nsf.net (35.1.1.48), 64 hops max, 38 byte packet 1 helios.ee.lbl.gov (128.3.112.1) 19 ms 19 ms 0 ms 2 lilac-dmc.Berkeley.EDU (128.32.216.1) 39 ms 39 ms 19 ms 3 lilac-dmc.Berkeley.EDU (128.32.216.1) 39 ms 39 ms 19 ms @@ -219,7 +223,7 @@ A more interesting example is: .RS .nf [yak 72]% traceroute allspice.lcs.mit.edu. -traceroute to allspice.lcs.mit.edu (18.26.0.115), 30 hops max +traceroute to allspice.lcs.mit.edu (18.26.0.115), 64 hops max 1 helios.ee.lbl.gov (128.3.112.1) 0 ms 0 ms 0 ms 2 lilac-dmc.Berkeley.EDU (128.32.216.1) 19 ms 19 ms 19 ms 3 lilac-dmc.Berkeley.EDU (128.32.216.1) 39 ms 19 ms 19 ms |
