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Special Forums IP Networking Getting Iptables New not syn log message more time Post 302540765 by pasindu on Thursday 21st of July 2011 01:59:16 PM
Old 07-21-2011
Getting Iptables New not syn log message more time

Hi guys,

I having Iptables log message. It's coming more time. It's can't handle to linux squid.

Firewall -> 192.168.102.2 <iptables>
squid -> 192.168.102.2 <transparent proxy (port 3128)>

error ->
Jul 21 23:58:16 mig [559289.955344] New not syn:IN= OUT=eth0 SRC=192.168.102.2 DST=192.168.102.96 LEN=1500 TOS=0x00 PREC=0x00 TTL=64 ID=53063 DF PROTO=TCP SPT=3128 DPT=1638 WINDOW=11680 RES=0x00 ACK URGP=0

<This message getting all 192.168.102.0/32 network ip's>

getting above message more and move time. can't handle. full network getting slow .squid bandwidth not utilize. but internet slow.
 

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CISCO_IOS2DLF.IN(1)					  LogReport's Lire Documentation				       CISCO_IOS2DLF.IN(1)

NAME
cisco_ios2dlf - convert cisco logs to dlf format SYNOPSIS
cisco_ios2dlf DESCRIPTION
This script expects syslog-type logs from a CISCO IOS router on stdin. These look like e.g. Jul 3 00:00:39 router 40108: 4d09h: %SEC-6-IPACCESSLOGP: list FR_VA_in permitted udp 192.168.19.1(137) (Serial0/0.2 DLCI 120) -> 192.168.19.255(137), 2 packets Jul 3 00:02:39 router 40109: 4d09h: %SEC-6-IPACCESSLOGP: list FR_VA_in permitted udp 192.168.80.42(138) (Serial0/0.2 DLCI 120) -> 192.60.60.148(138), 1 packet Jul 3 00:02:39 router 40110: 4d09h: %SEC-6-IPACCESSLOGDP: list FR_VA_in permitted icmp 192.168.80.82 (Serial0/0.2 DLCI 120) -> 149.1.1.1 (8/0), 1 packet or Aug 19 04:02:34 gateway.foo.bar 218963: Aug 19 04:02:32.977: %LINEPROTO-5-UPDOWN: Line protocol on Interface BRI0:1, changed state to down Aug 19 04:02:34 gateway.foo.bar 218964: Aug 19 04:02:33.262: %ISDN-6-DISCONNECT: Interface BRI0:1 disconnected from 172605440 acme, call lasted 42 seconds Aug 19 04:02:35 gateway.foo.bar 218965: Aug 19 04:02:33.266: %LINK-3-UPDOWN: Interface BRI0:1, changed state to down Aug 19 04:02:38 gateway.foo.bar 218966: Aug 19 04:02:36.103: %SEC-6-IPACCESSLOGP: list 102 denied tcp 100.198.139.148(4652) -> 100.193.176.49(80), 1 packet Aug 19 04:02:45 gateway.foo.bar 218967: Aug 19 04:02:43.543: %ISDN-6-LAYER2DOWN: Layer 2 for Interface BR0, TEI 86 changed to down Aug 19 04:02:53 gateway.foo.bar 218968: Aug 19 04:02:51.471: %SEC-6-IPACCESSLOGP: list 102 denied tcp 100.74.103.1(2162) -> 100.193.176.98(80), 1 packet The outputted dlf files look like: 994118619 permitted icmp 192.168.80.9 - Serial0/0.2 DLCI_120 192.168.19.1 - 1 994118619 permitted udp 192.168.19.1 138 Serial0/0.2 DLCI_120 192.168.19.255 138 1 EXAMPLES
To process a log as produced by Cisco IOS: $ cisco_ios2dlf < cisco.log cisco_ios2dlf will be rarely used on its own, but is more likely called by lr_log2report: $ lr_log2report cisco_ios < /var/log/cisco.log AUTHORS
Francis J. Lacoste based on initial code by Joost Bekkers <joost@jodocus.org> VERSION
$Id: cisco_ios2dlf.in,v 1.8 2006/07/23 13:16:35 vanbaal Exp $ COPYRIGHT
Copyright (C) 2001 Joost Bekkers <joost@jodocus.org> Copyright (C) 2002 Stichting LogReport Foundation <logreport@logreport.org> This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program (see COPYING); if not, check with http://www.gnu.org/copyleft/gpl.html. Lire 2.1.1 2006-07-23 CISCO_IOS2DLF.IN(1)
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