From mboxrd@z Thu Jan 1 00:00:00 1970 From: "John A. Sullivan III" Subject: PMTU-D and conntrack Date: Mon, 06 Feb 2006 00:47:38 -0500 Message-ID: <1139204858.2549.5.camel@localhost> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: netfilter-bounces@lists.netfilter.org Errors-To: netfilter-bounces@lists.netfilter.org Content-Type: text/plain; charset="us-ascii" To: Netfilter users list Are the ICMP Destination Unreachable-Fragmentation Needed and DF Set (type 3, code 4) packets sent in response to a TCP packet doing PMTU discovery considered RELATED or does one need to allow NEW connections for such packets? By the way, is there a way to specify code number in the --icmp-type match? I think one can do -p 1 --icmp-type fragmentation-needed but I usually use the numbers to avoid lookups, e.g., -p 1 --icmp-type 8. Thanks - John -- John A. Sullivan III Open Source Development Corporation +1 207-985-7880 jsullivan@opensourcedevel.com If you would like to participate in the development of an open source enterprise class network security management system, please visit http://iscs.sourceforge.net