From owner-freebsd-questions Tue Sep 19 3:40:15 2000 Delivered-To: freebsd-questions@freebsd.org Received: from ngo.org.uk (ngo.org.uk [193.62.43.28]) by hub.freebsd.org (Postfix) with ESMTP id 1539E37B424 for ; Tue, 19 Sep 2000 03:40:13 -0700 (PDT) Received: (from mac@localhost) by ngo.org.uk (8.9.3/8.9.3) id LAA22323; Tue, 19 Sep 2000 11:42:07 +0100 (BST) From: Mac Message-Id: <200009191042.LAA22323@ngo.org.uk> Subject: Re: How do I interpret this traceroute? In-Reply-To: <39c6f72e.8985779@mail.afnetinc.com> from Elliot Finley at "Sep 19, 0 05:28:13 am" To: lists@efinley.com Date: Tue, 19 Sep 2000 11:42:06 +0100 (BST) Cc: freebsd-questions@freebsd.org X-Mailer: ELM [version 2.4ME+ PL38 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Elliot Finley Wrote > [lines wrapped at 110 so that traceroute output will not be wrapped] But no need to wrap the normal text of your mail at 110 as well. > > The first traceroute dies at 157.130.162.62. The !H means host unreachable. But does this mean that > 216.190.63.1 (the final destination) is the one that is having problems, and is unreachable? Or does this > mean that there is some sort of routing loop on 157.130.162.62? > > The second traceroute makes it all the way through and is just shown here for reference. More information about the circumstances which give rise to each traceroute is required. See also Crist J . Clark's response. However, assuming you don't change anything between the two tracroute's then a reasonably likely and possible explanation is that the host at the far end just went away. There's several ways the last-hop router could _know_ that the host is dead (as opposed to not knowing and you just get a line '* * *' as your traceroute fails to get a response). Mac To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message