From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Manish Jain" Subject: ICMP Land Attack Date: Mon, 9 Apr 2007 17:23:32 +0530 Message-ID: <007a01c77a9d$b2727c50$dd2d10ac@synapse.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit To: Return-path: In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: netfilter-devel-bounces@lists.netfilter.org Errors-To: netfilter-devel-bounces@lists.netfilter.org List-Id: netfilter-devel.vger.kernel.org Hello, We are experiencing ICMP Land Attach (ICMP packet with [source ip = dest ip] && [source mac == dest mac]). Do we have any standard mechanism to counter this attach using iptable/ipsets? Or any other suggestion? Whether it is possible to write iptable rule saying "source ip == dest ip" instead of specifying hard-coded values? Any pointers will be appreciated. Best Regards, Manish Jain