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From: "Akos Szalkai" <szalkai@2fkft.com>
To: netfilter@lists.netfilter.org
Subject: Re: Weird TCP flags?
Date: Sat, 13 Dec 2003 15:57:27 +0100	[thread overview]
Message-ID: <20031213145727.GD229@2fkft.com> (raw)
In-Reply-To: <200312131450.58938.Antony@Soft-Solutions.co.uk>

> Sorry - I misread your posting at first - I realise now you were saying that 
> the firewall in front of the spoofed address never saw the first packet, so 
> it drops the second one.

Sorry, probably my writing is not clear enough...

> However, the above log entry is from the firewall in front of the web server - 
> as far as it is concerned, it saw the first packet, and it saw the second 
> packet.   I'm not sure there's an explanation yet for why it decided to drop 
> and log the second packet.

I am afraid now you did not misread my posting.  You simply did not read
the rest of it, because it is in there.  Summary: it drops the
retransmitted syn-acks after 60 secs.

Akos

-- 
Akos Szalkai <szalkai@2f.hu>
IT Consultant, CISA
2F 2000 Szamitastechnikai es Szolgaltato Kft.
Tel: (+36-1)-4887700  Fax: (+36-1)-4887709  WWW: http://www.2f.hu/


  reply	other threads:[~2003-12-13 14:57 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-12-12  4:11 Weird TCP flags? Ian Hunter
2003-12-12  4:46 ` Jeffrey Laramie
2003-12-12  4:52   ` Ian Hunter
2003-12-12  5:20     ` Jeffrey Laramie
2003-12-12  4:51 ` Jeffrey Laramie
     [not found] ` <200312120105.01557.Alistair Tonner <>
2003-12-12 12:26   ` John A. Sullivan III
2003-12-12 13:14     ` Ian Hunter
2003-12-12 13:32       ` John A. Sullivan III
2003-12-12 13:59         ` Antony Stone
2003-12-12 14:50           ` John A. Sullivan III
2003-12-12 14:37             ` Antony Stone
2003-12-12 16:37           ` Ian Hunter
2003-12-12 13:13 ` Chris Brenton
2003-12-12 13:26   ` Ian Hunter
2003-12-12 14:05   ` Jeffrey Laramie
2003-12-12 13:57     ` Antony Stone
2003-12-12 14:21     ` John A. Sullivan III
2003-12-12 14:26     ` Ralf Spenneberg
2003-12-12 14:41       ` Jeffrey Laramie
2003-12-12 14:38         ` Antony Stone
2003-12-12 16:05           ` Jeffrey Laramie
2003-12-12 17:41             ` Chris Brenton
2003-12-12 21:21             ` Antony Stone
2003-12-13 14:00 ` Akos Szalkai
2003-12-13 14:41   ` Antony Stone
2003-12-13 14:50     ` Antony Stone
2003-12-13 14:57       ` Akos Szalkai [this message]
2003-12-13 14:53     ` Akos Szalkai

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