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Message-ID: <20020909225235.82286.qmail@web21009.mail.yahoo.com>
Date: Mon, 9 Sep 2002 15:52:35 -0700 (PDT)
From: Nicholas Wourms <nwourms AT yahoo DOT com>
Subject: RE: Traceroute?
To: Randall R Schulz <rrschulz AT cris DOT com>, cygwin AT cygwin DOT com
In-Reply-To: <5.1.0.14.2.20020909145740.02c98d48@pop3.cris.com>
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--- Randall R Schulz <rrschulz AT cris DOT com> 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 (ee.lbl.gov).  Here's how they
compare:

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

Options:
    -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.

*nix
-----
       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...

Cheers,
Nicholas

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