From owner-freebsd-questions@FreeBSD.ORG Wed May 12 12:33:27 2004 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 8466E16A4CE for ; Wed, 12 May 2004 12:33:27 -0700 (PDT) Received: from mailgate-internal1.sri.com (mailgate-internal1.SRI.COM [128.18.84.103]) by mx1.FreeBSD.org (Postfix) with SMTP id 39DEB43D41 for ; Wed, 12 May 2004 12:33:27 -0700 (PDT) (envelope-from hogsett@csl.sri.com) Received: (qmail 3005 invoked from network); 12 May 2004 19:33:26 -0000 Received: from localhost (HELO mailgate-internal1.SRI.COM) (127.0.0.1) by mailgate-internal1.sri.com with SMTP; 12 May 2004 19:33:26 -0000 Received: from quarter.csl.sri.com ([130.107.1.30]) M2004051212332022186 ; Wed, 12 May 2004 12:33:20 -0700 Received: from beast.csl.sri.com (beast.csl.sri.com [130.107.2.57]) by quarter.csl.sri.com (8.12.9/8.12.10) with ESMTP id i4CJXKrM013650; Wed, 12 May 2004 12:33:20 -0700 Received: from beast.csl.sri.com (localhost.localdomain [127.0.0.1]) by beast.csl.sri.com (8.12.10/8.12.10) with ESMTP id i4CJXKwR022969; Wed, 12 May 2004 12:33:20 -0700 Received: from beast.csl.sri.com (hogsett@localhost)i4CJXKOB022965; Wed, 12 May 2004 12:33:20 -0700 Message-Id: <200405121933.i4CJXKOB022965@beast.csl.sri.com> To: Clint Olsen In-Reply-To: Message from Clint Olsen of "Wed, 12 May 2004 12:29:19 PDT." <20040512192918.GA69895@0lsen.net> User-Agent: SEMI/1.14.4 (Hosorogi) FLIM/1.14.5 (Demachiyanagi) APEL/10.6 Emacs/21.3 (i386-redhat-linux-gnu) MULE/5.0 (SAKAKI) MIME-Version: 1.0 (generated by SEMI 1.14.4 - "Hosorogi") Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Date: Wed, 12 May 2004 12:33:20 -0700 From: Mike Hogsett cc: questions@freebsd.org Subject: Re: Traceroute supporting ICMP ECHO X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 12 May 2004 19:33:27 -0000 > I'm using 4.7p1 here, and I've had all sorts of fun on occasion with > traceroute and my various firewall/routers. The default traceroute will > not work since UDP traffic is apparently blocked on the return. Opening = up > port ranges on my router just doesn't seem right. However, Linux > traceroute has a -I option (I think Windows tracert uses ICMP ECHO by > default) which allows it to work through a home firewall router. The > FreeBSD port for mtr also works. >=20 > Is there anyone who has considered adding this capability to FreeBSD? I think its already there. ( 4.9-RELEASE-p3 ) =46rom traceoute(8) -P Send packets of specified IP protocol. The currently suppor= ted protocols are: UDP, TCP, GRE and ICMP. Other protocols may a= lso be specified (either by name or by number), though tracero= ute does not implement any special knowledge of their packet f= or- mats. This option is useful for determining which router alon= g a path may be blocking packets based on IP protocol number. = But see BUGS below.