[52818] in North American Network Operators' Group
Re: question concerning traceroute?
daemon@ATHENA.MIT.EDU (Arnold Nipper)
Thu Oct 17 11:52:20 2002
Date: Thu, 17 Oct 2002 17:51:46 +0200
From: Arnold Nipper <arnold@nipper.de>
To: k claffy <kc@caida.org>
Cc: Stephen Stuart <stuart@tech.org>,
Darrell Carley <darrell@national-net.com>, nanog@merit.edu
Reply-To: arnold@nipper.de
In-Reply-To: <20021017084301.A26347@caida.org>
X-From: arnold@nipper (Arnold Nipper)
Errors-To: owner-nanog-outgoing@merit.edu
On Thu, Oct 17, 2002 at 08:43:01AM -0700, k claffy wrote:
>
> remark it is also possible for the (forward or reverse)
> path to change in the middle of the measurement,
> such that traceroute output would lead you
> to believe a path that never existed anywhere
> on the Internet (i.e., one that is not manifested
> in the current physical Internet)
> and you would not be able to confirm for sure
> without asking the contacts for the IP links
> in question how they're connected.
>
That's true but only if you have compiled traceroute
without "--enable-schroedinger" ;-))
-- Arnold
