HP Integrity NonStop H-Series - Manual (Page 36)

ICMP_UNREACH_PORT message to conclude route tracing. The Tracer Utility informs you of
this occurrence by printing an exclamation point either on your screen or in the disk file you
specified.
Specifying the -p option is useful when the default value (33434) does specify an actual port
range on the destination host. In such cases, -p option allows you to specify an unused port
range.
[ -q nqueries ]
specifies the number of probes, or queries, per TTL. If you do not specify this option, the Tracer
Utility uses the default value 3 for nqueries.
[-r ]
specifies that the routing tables be bypassed and that probes should be sent directly to a host
on an attached network. If the host is not on a directly attached network, an error message is
returned.
You can use this option to check whether a remote host is on an attached network.
[ -s src-addr ]
specifies that the IP address in src-addr should be used as the source address in outgoing
probe packets. The address specified in src-addr must be an IP number rather than a host
name.
On NonStop systems with more than one IP address, use the -s option to change the source
address to an address that differs from the IP address of the interface on which the probepacket
is sent.
The IP address you specify for src-addr must be one of the IP addresses of the NonStop
system on which you launch the trace. Otherwise, an error message is returned, and the Tracer
Utility does not send out any probes.
[ -v ]
specifies verbose output. If you specify this option, all received ICMP packets are listed. If you
do not specify this option, only the ICMP packets TIME_EXCEEDED and UNREACHABLE are
listed.
[ -w wait-time ]
specifies the amount of time, in seconds, that the Tracer Utility waits for a response to a probe.
If you do not specify this option, the Tracer Utility uses the default value of 5 seconds for
wait-time
.
remote-host-name
specifies the name or IP address of the remote host system to which the Tracer Utility is to trace
the path. This parameter is required. You must specify it following any Tracer options (-d, -m,
-n, -p, -q, -r, -s, -v, or -w).
[ data-size ]
specifies the packet-size in bytes. If you do not specify data-size, the Tracer Utility uses the
default probe datagram length. The default probe datagram length is 38 bytes. You must
specify data-size immediately following the specification of host-name.
36 Tracer— Tracing IP Packets