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From: "Michael Frank" <mhf@linuxmail.org>
To: netfilter@lists.netfilter.org
Subject: Qustion wrt state RELATED,ESTABLISHED
Date: Wed, 07 Jul 2004 11:48:50 +0800	[thread overview]
Message-ID: <opsaq0vou24evsfm@smtp.pacific.net.th> (raw)


Is my  assumtion correct that state RELATED,ESTABLISHED checks all flags
for match and thus this state can (and should be for performance reasons)
be the first in each table ?


Chain INPUT (policy DROP 0 packets, 0 bytes)
  pkts bytes       target     prot opt in     out     source               destination
15172 2029K ACCEPT     all  --  any    any     anywhere             anywhere           state RELATED,ESTABLISHED
  0       0             BADTCP     tcp  --  any    any     anywhere             anywhere           tcp flags:FIN,SYN,RST,PSH,ACK,URG/FIN,PSH,URG
....

Chain BADTCP (6 references)
  pkts bytes target     prot opt in     out     source               destination
     0     0 LOG        all  --  any    any     anywhere             anywhere           limit: avg 3/min burst 3 LOG level alert prefix `ipt - Blocked Bad TCP flag: '
     0     0 DROP       all  --  any    any     anywhere             anywhere

	Thank you
	Michael


             reply	other threads:[~2004-07-07  3:48 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-07-07  3:48 Michael Frank [this message]
2004-07-07  5:11 ` Qustion wrt state RELATED,ESTABLISHED Rob Sterenborg
2004-07-07  6:13   ` Michael Frank

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