From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Shaun T. Erickson" Subject: Slightly delayed dns response packets getting delayed - how to handle them? Date: Thu, 22 Apr 2004 18:05:28 -0400 Sender: netfilter-admin@lists.netfilter.org Message-ID: <408841A8.1000307@smxy.org> Reply-To: ste@smxy.org Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: 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"; format="flowed" To: netfilter@lists.netfilter.org I have an RH9 system with three nics: 1 WAN & 2 LANs. One lan is really locked down - the only thing allowed into it are responses to traffic initiated frm that lan. The DNS server is on the other LAN. I'm seeing occaisional dns packets being blocked from entering the locked down LAN. My assumption, correct or not, is that these are slightly delayed packets that are arriving after the state has been torn down, and they are thus blocked. I see something like 30 or so of these every 8 hours or so. Is this something people see a lot? If so, what is the best way to dal with it? -ste