From owner-freebsd-questions Wed May 31 17:20:37 2000 Delivered-To: freebsd-questions@freebsd.org Received: from mail.rdc2.bc.home.com (ha1.rdc2.bc.wave.home.com [24.2.10.68]) by hub.freebsd.org (Postfix) with ESMTP id D545337B759 for ; Wed, 31 May 2000 17:20:35 -0700 (PDT) (envelope-from dr@dursec.com) Received: from kyxbot.zorg ([24.113.134.64]) by mail.rdc2.bc.home.com (InterMail vM.4.01.02.17 201-229-119) with SMTP id <20000601002035.FHD28518.mail.rdc2.bc.home.com@kyxbot.zorg>; Wed, 31 May 2000 17:20:35 -0700 From: Dragos Ruiu Organization: kyx.net To: Roelof Osinga , The Hermit Hacker Subject: Re: tracerouting switches, routers and hosts ... Date: Wed, 31 May 2000 17:15:59 -0700 X-Mailer: KMail [version 1.0.28] Content-Type: text/plain Cc: freebsd-questions@FreeBSD.ORG References: <39358740.AF0FEB9B@nisser.com> In-Reply-To: <39358740.AF0FEB9B@nisser.com> MIME-Version: 1.0 Message-Id: <0005311717574I.15569@kyxbot.zorg> Content-Transfer-Encoding: 8bit Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Wed, 31 May 2000, Roelof Osinga wrote: > The Hermit Hacker wrote: > > myhost->switcha->porta-router->portb-router->switchb->remote host > > I only see the IPs for porta-router and remote host, but it misses > > everything in between ... > > They're probably ignoring ICMP requests. Operating in stealth mode > so to speak. > Traceroute works by modifying the Time To Live (TTL) field. Switches typically wouldn't affect the TTL or show up in traceroutes as anything other than latency. cheers, --dr -- dursec.com ltd. / kyx.net - we're from the future http://www.dursec.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message