From owner-freebsd-questions Fri Aug 14 05:17:19 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id FAA13000 for freebsd-questions-outgoing; Fri, 14 Aug 1998 05:17:19 -0700 (PDT) (envelope-from owner-freebsd-questions@FreeBSD.ORG) Received: from horton.iaces.com (horton.iaces.com [204.147.87.98]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id FAA12994 for ; Fri, 14 Aug 1998 05:17:17 -0700 (PDT) (envelope-from proot@horton.iaces.com) Received: (from proot@localhost) by horton.iaces.com (8.8.8/8.8.7) id HAA12804; Fri, 14 Aug 1998 07:16:46 -0500 (CDT) From: "Paul T. Root" Message-Id: <199808141216.HAA12804@horton.iaces.com> Subject: Re: Traceroutes to Cisco Routers In-Reply-To: from Jeremy Shaffner at "Aug 13, 98 05:41:07 pm" To: jer@jorsm.com (Jeremy Shaffner) Date: Fri, 14 Aug 1998 07:16:46 -0500 (CDT) Cc: marcus@miami.edu, freebsd-questions@FreeBSD.ORG X-Organization: USWEST !nterprise Networking - ACES X-Phone: (612) 664-3385 X-Fax: (612) 664-4779 X-Page: (800) SKY-PAGE PIN: 537-7270 X-Address: 600 Stinson Blvd, Fl 1S X-Address: Minneapolis, MN 55413 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 In a previous message, Jeremy Shaffner said: > On Thu, 13 Aug 1998, Joe "Marcus" Clarke wrote: > > > Here is why the trace fails: > > > > Cisco throttles ICMP unreachables so that only 2 unreachables per second > > are sent. The result puts a star in one of the fields: > > > > i.e. (200 ms) (200 ms) * > > > > Fair enough. But it's dropping the second and not the third. And it > doesn't explain why non-Unix OS's trace to it fine. > None Unix code may be using pings with specific TTLs instead of icmps, for transport. > -===================================================================- > Jeremy Shaffner JORSM Internet > Senior Technical Support Northwest Indiana's Premium > jer@jorsm.com Internet Service Provider > support@jorsm.com http://www.jorsm.com > -===================================================================- > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-questions" in the body of the message > -- Life is what happens to you while you're busy making other plans. -- John Lennon To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message