From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mail Lists Subject: subnet problem Date: Sun, 18 Jul 2004 16:50:07 -0400 Sender: netfilter-admin@lists.netfilter.org Message-ID: <20040718205007.GA7576@sapience.com> Mime-Version: 1.0 Return-path: Content-Disposition: inline Errors-To: netfilter-admin@lists.netfilter.org List-Help: List-Post: List-Subscribe: , List-Id: List-Unsubscribe: , List-Archive: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: netfilter@lists.netfilter.org I'd appreciate help here. I disallow iana reserved and some rfc 1918 from my firewall. The line in question is this: cRES_LDROP all -- 172.16.0.0/12 0.0.0.0/0 which I would expect to block 172.16 to 172.31. However I get these in my log files: Jul 18 16:21:47 fw kernel: [FW Drop-Res] IN=eth1 OUT= MAC= SRC=172.139.140.122 DST= LEN=48 TOS=0x00 PREC=0x00 TTL=109 ID=30189 DF PROTO=TCP SPT=3477 DPT=1025 WINDOW=16384 RES=0x00 SYN URGP=0 I'm stumped - why did 172.139 get dropped here? Not that the packet wouldn't have gotten dropped later anyway but this rule should not have matched? Suggestions? gene/