TCP/IP (Parallel Library) Configuration and Management Manual

HP NonStop TCP/IP (Parallel Library) Configuration and Management Manual—522271-006
C-1
C Tracer Utility
The Tracer Utility displays the path taken by IP packets enroute to a network host. Use
the Tracer Utility to determine any problems that these packets might encounter. From
each gateway system along the path, the Tracer Utility attempts to elicit an ICMP
TIME_EXCEEDED message. From the destination remote host, it attempts to elicit a
ICMP_PORT_UNREACHABLE message.
Running the Tracer Utility from a Terminal
You can use Tracer Utility only if your user ID is SUPER.SUPER.
Output from the Tracer Utility appears on the screen of the terminal from which the
utility was launched. You can also choose to have the output logged to a file.
[run-option ]
specifies an operating system RUN command option. For a complete description of
all RUN options, see the TACL Reference Manual.
Note that the OUT option allows you to send the output of a trace to a log file.
Examples:
The following command directs the output of a trace to be sent to a remote system
named \IDEV to a disk file named $fiti.trace. traceout on the local system.
>TACL TRACER/OUT $fiti.trace.traceout/IDEV
The following command directs the output of a trace to be sent to a remote system
named \IDEV to a disk file named $wpo.trace. traceout on the system named
\igate.
>TACL TRACER/OUT \igate.$wpo.trace.traceout/IDEV
[ -d ]
sets the SO_DEBUG option on the socket being used.
[ -m max-ttl ]
specifies the maximum time-to-live value (or number of hops) used in out-going
probe packets. If you do not specify this option, the Tracer Utility uses the default
value of 30 hops.
TRACER [ / run-option ] [ , run-option... / ][ -d ]
[ -m max-ttl ][-n ][ -p port-num ] [ q nqueries ]
[ -r ][ -s src-addr ] [ -v ] [ -w wait-time ]
remote-host-name [ data-size ]