From owner-freebsd-questions Wed Mar 19 6:28:53 2003 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 5A44637B401 for ; Wed, 19 Mar 2003 06:28:52 -0800 (PST) Received: from vega.unicks.net (h158n1fls31o858.telia.com [213.65.92.158]) by mx1.FreeBSD.org (Postfix) with ESMTP id D3A5F43FAF for ; Wed, 19 Mar 2003 06:28:50 -0800 (PST) (envelope-from markus@markus.pp.se) Received: (from nobody@localhost) by vega.unicks.net (8.12.6/8.12.6) id h2JESnNi096580; Wed, 19 Mar 2003 15:28:49 +0100 (CET) From: mackan Message-Id: <200303191428.h2JESnNi096580@vega.unicks.net> Date: Wed, 19 Mar 2003 15:28:49 +0100 To: ai1@mtaonline.net Cc: Bill Moran , freebsd-questions Subject: Re: where packets are dropped in route References: <200303191011.h2JABJ0B038650@en26.ai1.anchorage.mtaonline.net> <3E7866CB.5060104@potentialtech.com> In-Reply-To: <3E7866CB.5060104@potentialtech.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Quoting Bill Moran : > ai1@mtaonline.net wrote: > > i can't SSH to my gateway from machines elsewhere > > on the internet, but i can ssh to it on a local net. [...] > > my current ISP claims not to be blocking any traffic. > > i think he is wrong, and would like to identify > > exactly what machine is dropping the packets > > destined for port 22 on my gateway. [...] > traceroute will allow you to specify a port/proto instead of > using ICMP. > Other tools might be helpful as well. Use nmap (in ports) to > see if packets are being denied or simply dropped.> -- Do you have shell access to another host on the internet? Try nmap (as already suggested) from that host and scan your own machine. Maybe your ISP is blocking port 22 after all. nmap will tell you. -mackan To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message