From owner-freebsd-questions@FreeBSD.ORG Wed May 12 12:38:00 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 1FBF716A4CE for ; Wed, 12 May 2004 12:38:00 -0700 (PDT) Received: from creme-brulee.marcuscom.com (rrcs-midsouth-24-172-16-118.biz.rr.com [24.172.16.118]) by mx1.FreeBSD.org (Postfix) with ESMTP id 23A6E43D48 for ; Wed, 12 May 2004 12:37:59 -0700 (PDT) (envelope-from marcus@marcuscom.com) Received: from [10.2.1.4] (vpn-client-4.marcuscom.com [10.2.1.4]) i4CJaXWm009196; Wed, 12 May 2004 15:36:33 -0400 (EDT) (envelope-from marcus@marcuscom.com) From: Joe Marcus Clarke To: Clint Olsen In-Reply-To: <20040512192918.GA69895@0lsen.net> References: <20040512192918.GA69895@0lsen.net> Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="=-lOQMELNVi6iS3PH6R3x7" Organization: MarcusCom, Inc. Message-Id: <1084390698.881.30.camel@gyros> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.6 Date: Wed, 12 May 2004 15:38:18 -0400 X-Spam-Status: No, hits=-4.9 required=5.0 tests=BAYES_00 autolearn=ham version=2.63 X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on creme-brulee.marcuscom.com 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 19:38:00 -0000 --=-lOQMELNVi6iS3PH6R3x7 Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Wed, 2004-05-12 at 15:29, Clint Olsen wrote: > Hi: >=20 > 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. Someone already pointed out you can use different protocols with traceroute. However, you wouldn't need to open a range of UDP ports to get it working. traceroute uses a "well-known" UDP port by default: 33434. This is also changeable using the -p option (very rarely, some destinations may be listening on UDP port 33434, and thus they would not send the final PORT_UNREACHABLE ICMP reply). Joe >=20 > Is there anyone who has considered adding this capability to FreeBSD? >=20 > Thanks, >=20 > -Clint > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.o= rg" --=20 PGP Key : http://www.marcuscom.com/pgp.asc --=-lOQMELNVi6iS3PH6R3x7 Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (FreeBSD) iD8DBQBAon0qb2iPiv4Uz4cRAvomAKCkzAJEWCDPgws6qMjOqgXmPNvGzgCfX5RO sAjTUIOt6qAXMxhuEucT8SQ= =HVCx -----END PGP SIGNATURE----- --=-lOQMELNVi6iS3PH6R3x7--