diff options
Diffstat (limited to 'contrib/traceroute/traceroute.8')
| -rw-r--r-- | contrib/traceroute/traceroute.8 | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/contrib/traceroute/traceroute.8 b/contrib/traceroute/traceroute.8 index 654b538..ebfcc36 100644 --- a/contrib/traceroute/traceroute.8 +++ b/contrib/traceroute/traceroute.8 @@ -16,7 +16,7 @@ .\" $Id: traceroute.8,v 1.19 2000/09/21 08:44:19 leres Exp $ .\" $FreeBSD$ .\" -.Dd June 19, 2012 +.Dd May 31, 2015 .Dt TRACEROUTE 8 .Os .Sh NAME @@ -65,7 +65,7 @@ Turn on AS# lookups and use the given server instead of the default. .It Fl e Firewall evasion mode. -Use fixed destination ports for UDP and TCP probes. +Use fixed destination ports for UDP, UDP-Lite, TCP and SCTP probes. The destination port does NOT increment with each packet sent. .It Fl f Ar first_ttl Set the initial time-to-live used in the first outgoing probe packet. @@ -110,21 +110,24 @@ Print hop addresses numerically rather than symbolically and numerically path). .It Fl P Ar proto Send packets of specified IP protocol. The currently supported protocols -are: UDP, TCP, GRE and ICMP. Other protocols may also be specified (either by -name or by number), though +are: UDP, UDP-Lite, TCP, SCTP, GRE and ICMP. Other protocols may also be +specified (either by name or by number), though .Nm does not implement any special knowledge of their packet formats. This option is useful for determining which router along a path may be blocking packets based on IP protocol number. But see BUGS below. .It Fl p Ar port -Protocol specific. For UDP and TCP, sets +Protocol specific. For UDP, UDP-Lite, TCP and SCTP, sets the base .Ar port number used in probes (default is 33434). -Traceroute hopes that nothing is listening on UDP ports -.Em base +Traceroute hopes that nothing is listening on UDP ports (or UDP-Lite ports +if used by +.Nm +and supported by the peer) +.Em base + 1 to -.Em base + nhops * nprobes - 1 +.Em base + nhops * nprobes at the destination host (so an ICMP PORT_UNREACHABLE message will be returned to terminate the route tracing). If something is listening on a port in the default range, this option can be used |
