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From: Ralph de Boom <lkml@deboom.biz>
To: Richard Horton <richard.horton@solstans.co.uk>
Cc: Patrick McHardy <kaber@trash.net>, netfilter@vger.kernel.org
Subject: Re: Iptables v1.4.4 + kernel 2.6.31 mangle marking changed?
Date: Thu, 05 Nov 2009 18:53:00 +0100	[thread overview]
Message-ID: <4AF310FC.1060505@deboom.biz> (raw)
In-Reply-To: <56378e320911050352p64455be8ga21655668c361d95@mail.gmail.com>

Richard Horton schreef:
>> Right, at this point you've lost me, how I will manage to do that, and where
>> does the infomation get stored?
>>     
>
> You will need to turn trace on...
> iptables -A PREROUTING -t raw -J TRACE will turn tracing on for everything.
>
> The information is then stored in the syslog as per your syslog
> configuration - TRACE will show which rules etc your packets have
> encountered.
>
>   
Ok got that since kern.log will get majorly flooded I grepped the output.
If needed I can attach the whole log?

cat kern.log | grep 81.4.97.

Nov  5 18:48:14 sakura kernel: [  194.028498] fwmark 0x1: IN=eth1 OUT= 
MAC=00:1b:21:2d:a9:fa:00:1b:21:32:99:5f:08:00 SRC=192.168.1.30 
DST=81.4.97.160 LEN=48 TOS=0x00 PREC=0x00 TTL=128 ID=13005 DF PROTO=TCP 
SPT=52436 DPT=80 WINDOW=8192 RES=0x00 SYN URGP=0 MARK=0x1
Nov  5 18:48:14 sakura kernel: [  194.028527] TRACE: 
mangle:PREROUTING:policy:3 IN=eth1 OUT= 
MAC=00:1b:21:2d:a9:fa:00:1b:21:32:99:5f:08:00 SRC=192.168.1.30 
DST=81.4.97.160 LEN=48 TOS=0x00 PREC=0x00 TTL=128 ID=13005 DF PROTO=TCP 
SPT=52436 DPT=80 SEQ=2949910603 ACK=0 WINDOW=8192 RES=0x00 SYN URGP=0 
OPT (0204116C01010402) MARK=0x1
Nov  5 18:48:14 sakura kernel: [  194.028570] TRACE: 
mangle:FORWARD:policy:1 IN=eth1 OUT=eth0 SRC=192.168.1.30 
DST=81.4.97.160 LEN=48 TOS=0x00 PREC=0x00 TTL=127 ID=13005 DF PROTO=TCP 
SPT=52436 DPT=80 SEQ=2949910603 ACK=0 WINDOW=8192 RES=0x00 SYN URGP=0 
OPT (0204116C01010402) MARK=0x1
Nov  5 18:48:14 sakura kernel: [  194.028598] TRACE: 
filter:FORWARD:rule:1 IN=eth1 OUT=eth0 SRC=192.168.1.30 DST=81.4.97.160 
LEN=48 TOS=0x00 PREC=0x00 TTL=127 ID=13005 DF PROTO=TCP SPT=52436 DPT=80 
SEQ=2949910603 ACK=0 WINDOW=8192 RES=0x00 SYN URGP=0 OPT 
(0204116C01010402) MARK=0x1
Nov  5 18:48:14 sakura kernel: [  194.028626] TRACE: 
mangle:POSTROUTING:policy:1 IN= OUT=eth0 SRC=192.168.1.30 
DST=81.4.97.160 LEN=48 TOS=0x00 PREC=0x00 TTL=127 ID=13005 DF PROTO=TCP 
SPT=52436 DPT=80 SEQ=2949910603 ACK=0 WINDOW=8192 RES=0x00 SYN URGP=0 
OPT (0204116C01010402) MARK=0x1
Nov  5 18:48:14 sakura kernel: [  194.149805] TRACE: 
raw:PREROUTING:policy:2 IN=eth0 OUT= 
MAC=00:50:bf:65:b7:c1:00:18:39:27:fc:5a:08:00 SRC=81.4.97.160 
DST=192.168.2.40 LEN=48 TOS=0x00 PREC=0x00 TTL=58 ID=0 DF PROTO=TCP 
SPT=80 DPT=52436 SEQ=3690844742 ACK=2949910604 WINDOW=5840 RES=0x00 ACK 
SYN URGP=0 OPT (020405B401010402)
Nov  5 18:48:14 sakura kernel: [  194.149861] TRACE: 
mangle:PREROUTING:policy:3 IN=eth0 OUT= 
MAC=00:50:bf:65:b7:c1:00:18:39:27:fc:5a:08:00 SRC=81.4.97.160 
DST=192.168.2.40 LEN=48 TOS=0x00 PREC=0x00 TTL=58 ID=0 DF PROTO=TCP 
SPT=80 DPT=52436 SEQ=3690844742 ACK=2949910604 WINDOW=5840 RES=0x00 ACK 
SYN URGP=0 OPT (020405B401010402)
Nov  5 18:48:15 sakura kernel: [  195.173980] TRACE: 
raw:PREROUTING:policy:2 IN=eth0 OUT= 
MAC=00:50:bf:65:b7:c1:00:18:39:27:fc:5a:08:00 SRC=81.4.97.160 
DST=192.168.2.40 LEN=48 TOS=0x00 PREC=0x00 TTL=58 ID=0 DF PROTO=TCP 
SPT=80 DPT=52436 SEQ=3690844742 ACK=2949910604 WINDOW=5840 RES=0x00 ACK 
SYN URGP=0 OPT (020405B401010402)
Nov  5 18:48:15 sakura kernel: [  195.174046] TRACE: 
mangle:PREROUTING:policy:3 IN=eth0 OUT= 
MAC=00:50:bf:65:b7:c1:00:18:39:27:fc:5a:08:00 SRC=81.4.97.160 
DST=192.168.2.40 LEN=48 TOS=0x00 PREC=0x00 TTL=58 ID=0 DF PROTO=TCP 
SPT=80 DPT=52436 SEQ=3690844742 ACK=2949910604 WINDOW=5840 RES=0x00 ACK 
SYN URGP=0 OPT (020405B401010402)
Nov  5 18:48:27 sakura kernel: [  207.173329] TRACE: 
raw:PREROUTING:policy:2 IN=eth0 OUT= 
MAC=00:50:bf:65:b7:c1:00:18:39:27:fc:5a:08:00 SRC=81.4.97.160 
DST=192.168.2.40 LEN=48 TOS=0x00 PREC=0x00 TTL=58 ID=0 DF PROTO=TCP 
SPT=80 DPT=52436 SEQ=3690844742 ACK=2949910604 WINDOW=5840 RES=0x00 ACK 
SYN URGP=0 OPT (020405B401010402)
Nov  5 18:48:27 sakura kernel: [  207.173394] TRACE: 
mangle:PREROUTING:policy:3 IN=eth0 OUT= 
MAC=00:50:bf:65:b7:c1:00:18:39:27:fc:5a:08:00 SRC=81.4.97.160 
DST=192.168.2.40 LEN=48 TOS=0x00 PREC=0x00 TTL=58 ID=0 DF PROTO=TCP 
SPT=80 DPT=52436 SEQ=3690844742 ACK=2949910604 WINDOW=5840 RES=0x00 ACK 
SYN URGP=0 OPT (020405B401010402)
Nov  5 18:48:52 sakura kernel: [  231.380824] TRACE: 
raw:PREROUTING:policy:2 IN=eth0 OUT= 
MAC=00:50:bf:65:b7:c1:00:18:39:27:fc:5a:08:00 SRC=81.4.97.160 
DST=192.168.2.40 LEN=48 TOS=0x00 PREC=0x00 TTL=58 ID=0 DF PROTO=TCP 
SPT=80 DPT=52436 SEQ=3690844742 ACK=2949910604 WINDOW=5840 RES=0x00 ACK 
SYN URGP=0 OPT (020405B401010402)
Nov  5 18:48:52 sakura kernel: [  231.380891] TRACE: 
mangle:PREROUTING:policy:3 IN=eth0 OUT= 
MAC=00:50:bf:65:b7:c1:00:18:39:27:fc:5a:08:00 SRC=81.4.97.160 
DST=192.168.2.40 LEN=48 TOS=0x00 PREC=0x00 TTL=58 ID=0 DF PROTO=TCP 
SPT=80 DPT=52436 SEQ=3690844742 ACK=2949910604 WINDOW=5840 RES=0x00 ACK 
SYN URGP=0 OPT (020405B401010402)
Nov  5 18:49:40 sakura kernel: [  279.579532] TRACE: 
raw:PREROUTING:policy:2 IN=eth0 OUT= 
MAC=00:50:bf:65:b7:c1:00:18:39:27:fc:5a:08:00 SRC=81.4.97.160 
DST=192.168.2.40 LEN=48 TOS=0x00 PREC=0x00 TTL=58 ID=0 DF PROTO=TCP 
SPT=80 DPT=52436 SEQ=3690844742 ACK=2949910604 WINDOW=5840 RES=0x00 ACK 
SYN URGP=0 OPT (020405B401010402)
Nov  5 18:49:40 sakura kernel: [  279.579591] TRACE: 
mangle:PREROUTING:policy:3 IN=eth0 OUT= 
MAC=00:50:bf:65:b7:c1:00:18:39:27:fc:5a:08:00 SRC=81.4.97.160 
DST=192.168.2.40 LEN=48 TOS=0x00 PREC=0x00 TTL=58 ID=0 DF PROTO=TCP 
SPT=80 DPT=52436 SEQ=3690844742 ACK=2949910604 WINDOW=5840 RES=0x00 ACK 
SYN URGP=0 OPT (020405B401010402)

  reply	other threads:[~2009-11-05 17:53 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-11-04  0:49 Iptables v1.4.4 + kernel 2.6.31 mangle marking changed? Ralph de Boom
2009-11-04 11:16 ` Patrick McHardy
2009-11-04 13:15   ` Ralph de Boom
2009-11-04 14:10     ` Patrick McHardy
2009-11-04 15:53       ` Ralph de Boom
2009-11-05 11:52         ` Richard Horton
2009-11-05 17:53           ` Ralph de Boom [this message]
2009-11-10 17:34             ` Ralph de Boom
2009-11-11  8:33               ` Richard Horton

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