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RE: Traceroute?

--- Randall R Schulz <> wrote:
> John,
> Cygwin is not a world apart. You can invoke Windows tracert (and
> all other 
> Windows executables) directly from Cygwin.
> For commonly used commands that reside in a directory I don't
> otherwise 
> want in my PATH, I just define aliases or shell functions in my
> .bashrc.

Well I think the real issue is some missing functionality in the
tcp/ip interface within Cygwin.  Alas, the icmp headers seem to be
missing as well as ip_var.h/tcp_var.h/udp_var.h.  Too bad I don't
know enough about lowlevel windows tcp/ip, otherwise I'd jump on
trying to fix the holes in the current tcp/ip stack.

I think, many times, people get caught up in the argument that well
windows already has so-and-so tool.  Well that's nice, but sometimes
the windows version of the tool sucks.  In this case I'm inclined to
say windows traceroute is barely acceptable.  I much prefer the
version that comes with bsd/*nix (  Here's how they

Usage: tracert [-d] [-h maximum_hops] [-j host-list] [-w timeout]

    -d                 Do not resolve addresses to hostnames.
    -h maximum_hops    Maximum number of hops to search for target.
    -j host-list       Loose source route along host-list.
    -w timeout         Wait timeout milliseconds for each reply.

       traceroute [ -dFInrvx ] [ -f first_ttl ] [ -g gateway ]
               [ -i iface ] [ -m max_ttl ] [ -p port ]
               [ -q nqueries ] [ -s src_addr ] [ -t tos ]
               [ -w waittime ] [ -z pausemsecs ]
               host [ packetlen ]

Obviously the *nix version provides for a finer granularity of
control whereas the windows version is rather spartan.

Oh well, since I can't submit a patch I guess I should shutup now...


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