From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pascal Hambourg Subject: Re: Playing nice with incoming traceroutes Date: Mon, 17 May 2010 00:22:56 +0200 Message-ID: <4BF07040.904@plouf.fr.eu.org> References: Mime-Version: 1.0 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: Sender: netfilter-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="iso-8859-1" To: Pieter Smit Cc: Curby , netfilter@vger.kernel.org Hello, Pieter Smit a =E9crit : > You would send an ICMP time exceeded (type 11) packet if you receive = a > packet with a ttl=3D1 you will decrement it one realize it is 0 and s= end > the ICMP time exceeded. Only an intermediate router would do that, not the final destination.