Hi I can have the log in the PREROUTING chain. But, I have to log ACCEPTed and DROPped packets in the INPUT / FORWARD chains separately. I use the options in the LOG target to tag the ACCEPTed and DROPped packets. So, I cannot have them logged in the PREROUTING chain, where we will not know whether the packet is going to be accepted or dropped. I have to log the messages in the INPUT or FORWARD chains, but with the original addresses. Regards Prabha >From Antony@xxxxxxxxxxxxxxxxxxxx Wed Mar 3 09:53:24 2004 >From: Antony@xxxxxxxxxxxxxxxxxxxx (Antony Stone) >Date: Wed, 3 Mar 2004 09:53:24 +0000 >Subject: Logging packets with original address >In-Reply-To: <4045A0F1.F7366A69@xxxxxxxxxxxxxxx> >References: <4045A0F1.F7366A69@xxxxxxxxxxxxxxx> >Message-ID: <200403030953.24832.Antony@xxxxxxxxxxxxxxxxxxxx> >On Wednesday 03 March 2004 9:10 am, prabha wrote: > Hi > I want to log some packets in the INPUT and FORWARD chains, but with > the original address of the packets. (ie) with the destination address > before any DNAT rule has been applied on the packet in the PREROUTING >chain. >You cannot do this because packets pass through the INPUT chain after they >pass through PREROUTING. > When the packet comes to the INPUT / FORWARD chains, it will be > after any DNAT has been applied. >Correct. > I do not want the NATted address to be present in the logs, but the original > address as the received interface saw it. Is this possible? >Put the LOG rule in the PREROUTING chain. >Regards, > >Antony.